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的关联查询，数据库表除了前面小节中已经定义好的用户表...","2026-09-12T08:29:57.518395Z",[87],[],{"permalink":412,"excerpt":407,"lastModifyTime":413,"phase":116},"\u002Farchives\u002Fmybaitsplus-join-query","2026-09-13T05:25:32.424638Z",[415],{"metadata":416,"spec":417,"status":418,"postCount":96},{"name":87,"creationTimestamp":88},{"displayName":90,"slug":87,"cover":91,"description":92,"priority":27,"hideFromList":93,"preventParentPostCascadeQuery":93},{"permalink":95,"postCount":96,"visiblePostCount":96},{"metadata":420,"spec":423,"status":432,"categories":436},{"name":421,"creationTimestamp":422},"post-mybaitsplus-enum-value-745dbc08","2026-09-12T08:29:56.730649Z",{"title":424,"slug":425,"cover":426,"excerpt":427,"publishTime":429,"categories":430,"tags":431,"priority":27,"pinned":93,"deleted":93,"visible":111,"allowComment":112},"Mybatis Plus 通用枚举（图文讲解）","mybaitsplus-enum-value","\u002Fupload\u002F167359425246371-MHdo.jpg",{"raw":428,"autoGenerate":93},"\r\n大家好，本小节中，我们将讲解 Mybatis Plus 通用枚举的用法。那么，什么是通用枚举呢？之前小节中，我们的用户表有个性别字段 gender，在插入数据时，我们的示例代码大致如下...","2026-09-12T08:29:56.787230Z",[87],[],{"permalink":433,"excerpt":434,"lastModifyTime":435,"phase":116},"\u002Farchives\u002Fmybaitsplus-enum-value","本小节中，我们将讲解 Mybatis Plus 通用枚举的用法。那么，什么是通用枚举呢？之前小节中，我们的用户表有个性别字段 gender，在插入数据时，我们的示例代码大致如下...","2026-09-13T05:25:33.487169Z",[437],{"metadata":438,"spec":439,"status":440,"postCount":96},{"name":87,"creationTimestamp":88},{"displayName":90,"slug":87,"cover":91,"description":92,"priority":27,"hideFromList":93,"preventParentPostCascadeQuery":93},{"permalink":95,"postCount":96,"visiblePostCount":96},{"metadata":442,"spec":445,"status":454,"categories":458},{"name":443,"creationTimestamp":444},"post-mybaitsplus-common-annotation-80f197dc","2026-09-12T08:29:56.056296Z",{"title":446,"slug":447,"cover":448,"excerpt":449,"publishTime":451,"categories":452,"tags":453,"priority":27,"pinned":93,"deleted":93,"visible":111,"allowComment":112},"Mybatis Plus 常用注解（超详细）","mybaitsplus-common-annotation","\u002Fupload\u002F167334634342163-ZyfL.jpg",{"raw":450,"autoGenerate":93},"大家好，本文主要带大家来看下 Mybatis Plus 框架中，使用频率非常高的几个注解及其属性值，因为编写此本教程目的是为了大家快速入门并使用 Mybatis Plus，关于注解更高级的用法请参考官网...","2026-09-12T08:29:56.114067Z",[87],[],{"permalink":455,"excerpt":456,"lastModifyTime":457,"phase":116},"\u002Farchives\u002Fmybaitsplus-common-annotation","本文主要带大家来看下 Mybatis Plus 框架中，使用频率非常高的几个注解及其属性值，因为编写此本教程目的是为了大家快速入门并使用 Mybatis Plus，关于注解更高级的用法请参考官网...","2026-09-13T05:25:33.983128Z",[459],{"metadata":460,"spec":461,"status":462,"postCount":96},{"name":87,"creationTimestamp":88},{"displayName":90,"slug":87,"cover":91,"description":92,"priority":27,"hideFromList":93,"preventParentPostCascadeQuery":93},{"permalink":95,"postCount":96,"visiblePostCount":96},{"metadata":464,"spec":467,"status":476,"categories":479},{"name":465,"creationTimestamp":466},"post-mybaitsplus-code-generator-c984d27c","2026-09-12T08:29:55.452199Z",{"title":468,"slug":469,"cover":470,"excerpt":471,"publishTime":473,"categories":474,"tags":475,"priority":27,"pinned":93,"deleted":93,"visible":111,"allowComment":112},"Mybatis Plus 代码生成器（图文讲解）","mybaitsplus-code-generator","\u002Fupload\u002F167387297654896-aKtE.jpg",{"raw":472,"autoGenerate":93},"本小节中，我们将学习如何使用 Mybatis Plus 的代码生成器。可能有效小伙伴会疑惑，这玩意是干嘛使的？通常在实际项目开发中，如果开发一个功能，我们会先进行表设计，技术方案的确定，技术经理评估 OK 以后，才会进行项目开发，而不是一上来就写代码，跟无头苍蝇一样...","2026-09-12T08:29:55.508709Z",[87],[],{"permalink":477,"excerpt":472,"lastModifyTime":478,"phase":116},"\u002Farchives\u002Fmybaitsplus-code-generator","2026-09-13T05:25:35.131214Z",[480],{"metadata":481,"spec":482,"status":483,"postCount":96},{"name":87,"creationTimestamp":88},{"displayName":90,"slug":87,"cover":91,"description":92,"priority":27,"hideFromList":93,"preventParentPostCascadeQuery":93},{"permalink":95,"postCount":96,"visiblePostCount":96},{"metadata":485,"spec":486,"status":490,"categories":491,"content":496},{"name":443,"creationTimestamp":444},{"title":446,"slug":447,"cover":448,"excerpt":487,"publishTime":451,"categories":488,"tags":489,"priority":27,"pinned":93,"deleted":93,"visible":111,"allowComment":112},{"raw":450,"autoGenerate":93},[87],[],{"permalink":455,"excerpt":456,"lastModifyTime":457,"phase":116},[492],{"metadata":493,"spec":494,"status":495,"postCount":96},{"name":87,"creationTimestamp":88},{"displayName":90,"slug":87,"cover":91,"description":92,"priority":27,"hideFromList":93,"preventParentPostCascadeQuery":93},{"permalink":95,"postCount":96,"visiblePostCount":96},{"content":497,"raw":498},"\u003Cp>\u003C\u002Fp>\n\u003Cp>本文主要带大家来看下 Mybatis Plus 框架中，使用频率非常高的几个注解及其属性值，因为编写此本教程目的是为了大家快速入门并使用 Mybatis Plus，关于注解更高级的用法请参考官网。\u003C\u002Fp>\n\u003Ch2>实体类常用注解\u003C\u002Fh2>\n\u003Ch3>@TableName\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：表名注解，标识实体类对应的表。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>使用示例：\u003C\u002Fp>\n\u003Cpre>\u003Ccode>\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\n@TableName("t_user")\npublic class User {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    private Long id;\n    \u002F**\n     * 姓名\n     *\u002F\n    private String name;\n    \u002F**\n     * 年龄\n     *\u002F\n    private Integer age;\n    \u002F**\n     * 性别\n     *\u002F\n    private Integer gender;\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>\u003Cem>有没有什么法子可以不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，让框架自动解析映射？\u003C\u002Fem>\u003C\u002Fp>\n\u003Cp>主要有以下两种方法：\u003C\u002Fp>\n\u003Col>\n\u003Cli>\n\u003Cp>当表名和实体类的命名一致时，如表名 \u003Ccode>user\u003C\u002Fcode> , 实体类为 \u003Ccode>User\u003C\u002Fcode> 时，可不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，Mybatis Plus 会自动完成映射，不过实际项目中，表名规范规定都会带有前缀。\u003C\u002Fp>\n\u003C\u002Fli>\n\u003Cli>\n\u003Cp>还可以通过全局配置声明表明前缀，比如你的项目里，表名规范全部以 \u003Ccode>t_\u003C\u002Fcode>  开头，则可以在 \u003Ccode>application.yml\u003C\u002Fcode>  配置文件中添加如下配置，这样就可以不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，MP 会自动拼接：\u003C\u002Fp>\n\u003Cp>\n\u003Cimg src=\"\u002Fupload\u002F167334634342163-ZyfL.jpg\" loading=\"lazy\">\n\u003C\u002Fp>\n\u003C\u002Fli>\n\u003C\u002Fol>\n\u003Cpre>\u003Ccode>   mybatis-plus:\n     global-config:\n       db-config:\n         table-prefix: t_\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Ch3>@TableId\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：主键注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>使用示例：\u003C\u002Fp>\n\u003Cpre>\u003Ccode>\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\n@TableName("t_user")\npublic class User {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    @TableId(type = IdType.AUTO)\n    private Long id;\n    \u002F**\n     * 姓名\n     *\u002F\n    private String name;\n    \u002F**\n     * 年龄\n     *\u002F\n    private Integer age;\n    \u002F**\n     * 性别\n     *\u002F\n    private Integer gender;\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>\u003Ccode>@TableId\u003C\u002Fcode> 注解有两个属性值：\u003C\u002Fp>\n\u003Ctable>\n\u003Cthead>\n\u003Ctr>\n\u003Cth align=\"left\">属性\u003C\u002Fth>\n\u003Cth align=\"left\">类型\u003C\u002Fth>\n\u003Cth align=\"left\">必须指定\u003C\u002Fth>\n\u003Cth align=\"left\">默认值\u003C\u002Fth>\n\u003Cth align=\"left\">描述\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd align=\"left\">\u003Ccode>value\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>String\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">否\u003C\u002Ftd>\n\u003Ctd align=\"left\">""\u003C\u002Ftd>\n\u003Ctd align=\"left\">主键字段名\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd align=\"left\">\u003Ccode>type\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>Enum\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">否\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>IdType.NONE\u003C\u002Fcode> (默认雪花算法生成 ID)\u003C\u002Ftd>\n\u003Ctd align=\"left\">指定主键类型\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Ch3>@IdType\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：指定主键 ID 类型\u003C\u002Fstrong>。\u003C\u002Fp>\n\u003Ctable>\n\u003Cthead>\n\u003Ctr>\n\u003Cth>值\u003C\u002Fth>\n\u003Cth>描述\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>\u003Ccode>AUTO\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>数据库 \u003Ccode>ID\u003C\u002Fcode> 自增\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>NONE\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>未设置主键类型（默认）\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>INPUT\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>插入数据前，需自行设置主键的值\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>ASSIGN_ID\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>分配 \u003Ccode>ID\u003C\u002Fcode>(主键类型为 \u003Ccode>Number\u003C\u002Fcode>(\u003Ccode>Long\u003C\u002Fcode> 和 \u003Ccode>Integer\u003C\u002Fcode>)或 \u003Ccode>String\u003C\u002Fcode>)(since 3.3.0),使用接口\u003Ccode>IdentifierGenerator\u003C\u002Fcode>的方法\u003Ccode>nextId\u003C\u002Fcode>(默认实现类为\u003Ccode>DefaultIdentifierGenerator\u003C\u002Fcode>雪花算法)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>ASSIGN_UUID\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>分配 \u003Ccode>UUID\u003C\u002Fcode>,主键类型为 \u003Ccode>String\u003C\u002Fcode>(since 3.3.0),使用接口\u003Ccode>IdentifierGenerator\u003C\u002Fcode>的方法\u003Ccode>nextUUID\u003C\u002Fcode> (默认 \u003Ccode>default\u003C\u002Fcode> 方法)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>ID_WORKER\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>分布式全局唯一 ID 长整型类型 (推荐使用 \u003Ccode>ASSIGN_ID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>UUID\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>32 位 UUID 字符串 (推荐使用 \u003Ccode>ASSIGN_UUID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>ID_WORKER_STR\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>分布式全局唯一 ID 字符串类型 (推荐使用 \u003Ccode>ASSIGN_ID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Ch3>@TableField\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：指定数据库字段注解（非主键）\u003C\u002Fstrong>。\u003C\u002Fp>\n\u003Cp>假设表的字段名与实体类的字段名不一致，可通过它来指定，比如表字段名为 \u003Ccode>user_name\u003C\u002Fcode> 映射到实体类的字段 \u003Ccode>name\u003C\u002Fcode> 上，代码如下：\u003C\u002Fp>\n\u003Cpre>\u003Ccode>\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\n@TableName("t_user")\npublic class User {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    @TableId(type = IdType.AUTO)\n    private Long id;\n    \u002F**\n     * 姓名\n     *\u002F\n    @TableField("user_name")\n    private String name;\n    \u002F**\n     * 年龄\n     *\u002F\n    private Integer age;\n    \u002F**\n     * 性别\n     *\u002F\n    private Integer gender;\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Ch3>@TableLogic\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：逻辑删除注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cpre>\u003Ccode>@TableName("t_user")\npublic class User {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    @TableId(value = "id", type = IdType.AUTO)\n    private Long id;\n    \u002F**\n     * 姓名\n     *\u002F\n    private String name;\n    \u002F**\n     * 年龄\n     *\u002F\n    private Integer age;\n    \u002F**\n     * 性别\n     *\u002F\n    private Integer gender;\n\n    \u002F**\n     * 逻辑删除\n     *\u002F\n    @TableLogic\n    private Integer isDeleted;\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>具体如何使用，请参阅后续《逻辑删除》\u003Cspan>\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" style=\"color: #aaa; margin-left: 3px;\" aria-hidden=\"true\" focusable=\"false\" x=\"0px\" y=\"0px\" viewBox=\"0 0 100 100\" width=\"15\" height=\"15\" class=\"icon outbound\">\u003Cpath fill=\"currentColor\" d=\"M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z\">\u003C\u002Fpath> \u003Cpolygon fill=\"currentColor\" points=\"45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9\">\u003C\u002Fpolygon>\u003C\u002Fsvg> \u003Cspan class=\"sr-only\">\u003C\u002Fspan>\u003C\u002Fspan>小节，有详细教程。\u003C\u002Fp>\n\u003Ch3>@Version\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：乐观锁注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cpre>\u003Ccode>@TableName("t_seckill_goods")\npublic class SeckillGoods {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    @TableId(type = IdType.AUTO)\n    private Long id;\n    \u002F**\n     * 商品名称\n     *\u002F\n    private String goodsName;\n    \u002F**\n     * 库存\n     *\u002F\n    private Integer count;\n    \u002F**\n     * 乐观锁版本号\n     *\u002F\n    @Version\n    private Integer version;\n\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>具体如何使用，请参阅后续《乐观锁》\u003Cspan>\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" style=\"color: #aaa; margin-left: 3px;\" aria-hidden=\"true\" focusable=\"false\" x=\"0px\" y=\"0px\" viewBox=\"0 0 100 100\" width=\"15\" height=\"15\" class=\"icon outbound\">\u003Cpath fill=\"currentColor\" d=\"M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z\">\u003C\u002Fpath> \u003Cpolygon fill=\"currentColor\" points=\"45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9\">\u003C\u002Fpolygon>\u003C\u002Fsvg> \u003Cspan class=\"sr-only\">\u003C\u002Fspan>\u003C\u002Fspan>小节，有详细教程。\u003C\u002Fp>\n\u003Ch2>结语\u003C\u002Fh2>\n\u003Cp>本文带着大家快速了解了项目开发中常用的一些实体类注解，希望对小伙伴们有所帮助。\u003C\u002Fp>\n13:T5009,\u003Ch2 id=\"toc-0\">前言\u003C\u002Fh2>\n\u003Cp>\u003C\u002Fp>\n\u003Cp>本文主要带大家来看下 Mybatis Plus 框架中，使用频率非常高的几个注解及其属性值，因为编写此本教程目的是为了大家快速入门并使用 Mybatis Plus，关于注解更高级的用法请参考官网。\u003C\u002Fp>\n\u003Ch2 id=\"toc-1\">实体类常用注解\u003C\u002Fh2>\n\u003Ch3 id=\"toc-2\">@TableName\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：表名注解，标识实体类对应的表。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>使用示例：\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%2F**%0A%20*%20%40author%3A%20%E5%BC%A0%E4%B8%89%0A%20*%20%40from%3A%20%E5%85%AC%E4%BC%97%E5%8F%B7%EF%BC%9A%E5%BC%A0%E4%B8%89%2C%20%E7%BD%91%E7%AB%99%EF%BC%9Awww.mashangan.com%0A%20*%20%40date%3A%202022-12-13%2014%3A13%0A%20*%20%40version%3A%20v1.0.0%0A%20*%20%40description%3A%20TODO%0A%20**%2F%0A%40TableName(%22t_user%22)%0Apublic%20class%20User%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%A7%93%E5%90%8D%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20String%20name%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%B9%B4%E9%BE%84%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20age%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E6%80%A7%E5%88%AB%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20gender%3B%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token comment\">\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\u003C\u002Fspan>\n\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_user\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">User\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 姓名\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> name\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 年龄\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> age\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 性别\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> gender\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Cp>\u003Cem>有没有什么法子可以不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，让框架自动解析映射？\u003C\u002Fem>\u003C\u002Fp>\n\u003Cp>主要有以下两种方法：\u003C\u002Fp>\n\u003Col>\n\u003Cli>\n\u003Cp>当表名和实体类的命名一致时，如表名 \u003Ccode>user\u003C\u002Fcode> , 实体类为 \u003Ccode>User\u003C\u002Fcode> 时，可不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，Mybatis Plus 会自动完成映射，不过实际项目中，表名规范规定都会带有前缀。\u003C\u002Fp>\n\u003C\u002Fli>\n\u003Cli>\n\u003Cp>还可以通过全局配置声明表明前缀，比如你的项目里，表名规范全部以 \u003Ccode>t_\u003C\u002Fcode>  开头，则可以在 \u003Ccode>application.yml\u003C\u002Fcode>  配置文件中添加如下配置，这样就可以不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，MP 会自动拼接：\u003C\u002Fp>\n\u003Cp>\n\u003Cdiv class=\"img-loading\">\u003Cimg src=\"\u002Fupload\u002F167334634342163-ZyfL.jpg\" loading=\"lazy\">\u003C\u002Fdiv>\n\u003C\u002Fp>\n\u003C\u002Fli>\n\u003C\u002Fol>\n\u003Cdiv class=\"language-yaml\" data-ext=\"yaml\" data-code=\"%20%20%20mybatis-plus%3A%0A%20%20%20%20%20global-config%3A%0A%20%20%20%20%20%20%20db-config%3A%0A%20%20%20%20%20%20%20%20%20table-prefix%3A%20t_%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-yaml\">   \u003Cspan class=\"token key atrule\">mybatis-plus\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">:\u003C\u002Fspan>\n     \u003Cspan class=\"token key atrule\">global-config\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">:\u003C\u002Fspan>\n       \u003Cspan class=\"token key atrule\">db-config\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">:\u003C\u002Fspan>\n         \u003Cspan class=\"token key atrule\">table-prefix\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">:\u003C\u002Fspan> t_\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Ch3 id=\"toc-3\">@TableId\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：主键注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>使用示例：\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%2F**%0A%20*%20%40author%3A%20%E5%BC%A0%E4%B8%89%0A%20*%20%40from%3A%20%E5%85%AC%E4%BC%97%E5%8F%B7%EF%BC%9A%E5%BC%A0%E4%B8%89%2C%20%E7%BD%91%E7%AB%99%EF%BC%9Awww.mashangan.com%0A%20*%20%40date%3A%202022-12-13%2014%3A13%0A%20*%20%40version%3A%20v1.0.0%0A%20*%20%40description%3A%20TODO%0A%20**%2F%0A%40TableName(%22t_user%22)%0Apublic%20class%20User%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableId(type%20%3D%20IdType.AUTO)%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%A7%93%E5%90%8D%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20String%20name%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%B9%B4%E9%BE%84%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20age%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E6%80%A7%E5%88%AB%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20gender%3B%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token comment\">\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\u003C\u002Fspan>\n\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_user\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">User\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableId\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>type \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token class-name\">IdType\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">.\u003C\u002Fspan>\u003Cspan class=\"token constant\">AUTO\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 姓名\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> name\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 年龄\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> age\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 性别\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> gender\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Cp>\u003Ccode>@TableId\u003C\u002Fcode> 注解有两个属性值：\u003C\u002Fp>\n\u003Ctable>\n\u003Cthead>\n\u003Ctr>\n\u003Cth align=\"left\">属性\u003C\u002Fth>\n\u003Cth align=\"left\">类型\u003C\u002Fth>\n\u003Cth align=\"left\">必须指定\u003C\u002Fth>\n\u003Cth align=\"left\">默认值\u003C\u002Fth>\n\u003Cth align=\"left\">描述\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd align=\"left\">\u003Ccode>value\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>String\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">否\u003C\u002Ftd>\n\u003Ctd align=\"left\">""\u003C\u002Ftd>\n\u003Ctd align=\"left\">主键字段名\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd align=\"left\">\u003Ccode>type\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>Enum\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">否\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>IdType.NONE\u003C\u002Fcode> (默认雪花算法生成 ID)\u003C\u002Ftd>\n\u003Ctd align=\"left\">指定主键类型\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Ch3 id=\"toc-4\">@IdType\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：指定主键 ID 类型\u003C\u002Fstrong>。\u003C\u002Fp>\n\u003Ctable>\n\u003Cthead>\n\u003Ctr>\n\u003Cth>值\u003C\u002Fth>\n\u003Cth>描述\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>\u003Ccode>AUTO\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>数据库 \u003Ccode>ID\u003C\u002Fcode> 自增\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>NONE\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>未设置主键类型（默认）\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>INPUT\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>插入数据前，需自行设置主键的值\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>ASSIGN_ID\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>分配 \u003Ccode>ID\u003C\u002Fcode>(主键类型为 \u003Ccode>Number\u003C\u002Fcode>(\u003Ccode>Long\u003C\u002Fcode> 和 \u003Ccode>Integer\u003C\u002Fcode>)或 \u003Ccode>String\u003C\u002Fcode>)(since 3.3.0),使用接口\u003Ccode>IdentifierGenerator\u003C\u002Fcode>的方法\u003Ccode>nextId\u003C\u002Fcode>(默认实现类为\u003Ccode>DefaultIdentifierGenerator\u003C\u002Fcode>雪花算法)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>ASSIGN_UUID\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>分配 \u003Ccode>UUID\u003C\u002Fcode>,主键类型为 \u003Ccode>String\u003C\u002Fcode>(since 3.3.0),使用接口\u003Ccode>IdentifierGenerator\u003C\u002Fcode>的方法\u003Ccode>nextUUID\u003C\u002Fcode> (默认 \u003Ccode>default\u003C\u002Fcode> 方法)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>ID_WORKER\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>分布式全局唯一 ID 长整型类型 (推荐使用 \u003Ccode>ASSIGN_ID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>UUID\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>32 位 UUID 字符串 (推荐使用 \u003Ccode>ASSIGN_UUID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>ID_WORKER_STR\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>分布式全局唯一 ID 字符串类型 (推荐使用 \u003Ccode>ASSIGN_ID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Ch3 id=\"toc-5\">@TableField\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：指定数据库字段注解（非主键）\u003C\u002Fstrong>。\u003C\u002Fp>\n\u003Cp>假设表的字段名与实体类的字段名不一致，可通过它来指定，比如表字段名为 \u003Ccode>user_name\u003C\u002Fcode> 映射到实体类的字段 \u003Ccode>name\u003C\u002Fcode> 上，代码如下：\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%2F**%0A%20*%20%40author%3A%20%E5%BC%A0%E4%B8%89%0A%20*%20%40from%3A%20%E5%85%AC%E4%BC%97%E5%8F%B7%EF%BC%9A%E5%BC%A0%E4%B8%89%2C%20%E7%BD%91%E7%AB%99%EF%BC%9Awww.mashangan.com%0A%20*%20%40date%3A%202022-12-13%2014%3A13%0A%20*%20%40version%3A%20v1.0.0%0A%20*%20%40description%3A%20TODO%0A%20**%2F%0A%40TableName(%22t_user%22)%0Apublic%20class%20User%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableId(type%20%3D%20IdType.AUTO)%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%A7%93%E5%90%8D%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableField(%22user_name%22)%0A%20%20%20%20private%20String%20name%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%B9%B4%E9%BE%84%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20age%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E6%80%A7%E5%88%AB%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20gender%3B%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token comment\">\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\u003C\u002Fspan>\n\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_user\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">User\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableId\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>type \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token class-name\">IdType\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">.\u003C\u002Fspan>\u003Cspan class=\"token constant\">AUTO\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 姓名\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableField\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"user_name\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> name\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 年龄\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> age\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 性别\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> gender\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Ch3 id=\"toc-6\">@TableLogic\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：逻辑删除注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%40TableName(%22t_user%22)%0Apublic%20class%20User%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableId(value%20%3D%20%22id%22%2C%20type%20%3D%20IdType.AUTO)%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%A7%93%E5%90%8D%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20String%20name%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%B9%B4%E9%BE%84%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20age%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E6%80%A7%E5%88%AB%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20gender%3B%0A%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E9%80%BB%E8%BE%91%E5%88%A0%E9%99%A4%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableLogic%0A%20%20%20%20private%20Integer%20isDeleted%3B%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_user\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">User\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableId\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>value \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token string\">\"id\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">,\u003C\u002Fspan> type \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token class-name\">IdType\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">.\u003C\u002Fspan>\u003Cspan class=\"token constant\">AUTO\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 姓名\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> name\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 年龄\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> age\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 性别\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> gender\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\n    \u003Cspan class=\"token comment\">\u002F**\n     * 逻辑删除\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableLogic\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> isDeleted\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Cp>具体如何使用，请参阅后续《逻辑删除》\u003Cspan>\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" style=\"color: #aaa; margin-left: 3px;\" aria-hidden=\"true\" focusable=\"false\" x=\"0px\" y=\"0px\" viewBox=\"0 0 100 100\" width=\"15\" height=\"15\" class=\"icon outbound\">\u003Cpath fill=\"currentColor\" d=\"M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z\">\u003C\u002Fpath> \u003Cpolygon fill=\"currentColor\" points=\"45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9\">\u003C\u002Fpolygon>\u003C\u002Fsvg> \u003Cspan class=\"sr-only\">\u003C\u002Fspan>\u003C\u002Fspan>小节，有详细教程。\u003C\u002Fp>\n\u003Ch3 id=\"toc-7\">@Version\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：乐观锁注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%40TableName(%22t_seckill_goods%22)%0Apublic%20class%20SeckillGoods%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableId(type%20%3D%20IdType.AUTO)%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%95%86%E5%93%81%E5%90%8D%E7%A7%B0%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20String%20goodsName%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%BA%93%E5%AD%98%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20count%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B9%90%E8%A7%82%E9%94%81%E7%89%88%E6%9C%AC%E5%8F%B7%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40Version%0A%20%20%20%20private%20Integer%20version%3B%0A%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_seckill_goods\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">SeckillGoods\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableId\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>type \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token class-name\">IdType\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">.\u003C\u002Fspan>\u003Cspan class=\"token constant\">AUTO\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 商品名称\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> goodsName\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 库存\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> count\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 乐观锁版本号\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@Version\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> version\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Cp>具体如何使用，请参阅后续《乐观锁》\u003Cspan>\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" style=\"color: #aaa; margin-left: 3px;\" aria-hidden=\"true\" focusable=\"false\" x=\"0px\" y=\"0px\" viewBox=\"0 0 100 100\" width=\"15\" height=\"15\" class=\"icon outbound\">\u003Cpath fill=\"currentColor\" d=\"M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z\">\u003C\u002Fpath> \u003Cpolygon fill=\"currentColor\" points=\"45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9\">\u003C\u002Fpolygon>\u003C\u002Fsvg> \u003Cspan class=\"sr-only\">\u003C\u002Fspan>\u003C\u002Fspan>小节，有详细教程。\u003C\u002Fp>\n\u003Ch2 id=\"toc-8\">结语\u003C\u002Fh2>\n\u003Cp>本文带着大家快速了解了项目开发中常用的一些实体类注解，希望对小伙伴们有所帮助。\u003C\u002Fp>","\u003Cp>大家好。\u003C\u002Fp>\n\u003Cp>本文主要带大家来看下 Mybatis Plus 框架中，使用频率非常高的几个注解及其属性值，因为编写此本教程目的是为了大家快速入门并使用 Mybatis Plus，关于注解更高级的用法请参考官网。\u003C\u002Fp>\n\u003Ch2>实体类常用注解\u003C\u002Fh2>\n\u003Ch3>@TableName\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：表名注解，标识实体类对应的表。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>使用示例：\u003C\u002Fp>\n\u003Cpre>\u003Ccode>\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\n@TableName("t_user")\npublic class User {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    private Long id;\n    \u002F**\n     * 姓名\n     *\u002F\n    private String name;\n    \u002F**\n     * 年龄\n     *\u002F\n    private Integer age;\n    \u002F**\n     * 性别\n     *\u002F\n    private Integer gender;\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>\u003Cem>有没有什么法子可以不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，让框架自动解析映射？\u003C\u002Fem>\u003C\u002Fp>\n\u003Cp>主要有以下两种方法：\u003C\u002Fp>\n\u003Col>\n\u003Cli>\n\u003Cp>当表名和实体类的命名一致时，如表名 \u003Ccode>user\u003C\u002Fcode> , 实体类为 \u003Ccode>User\u003C\u002Fcode> 时，可不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，Mybatis Plus 会自动完成映射，不过实际项目中，表名规范规定都会带有前缀。\u003C\u002Fp>\n\u003C\u002Fli>\n\u003Cli>\n\u003Cp>还可以通过全局配置声明表明前缀，比如你的项目里，表名规范全部以 \u003Ccode>t_\u003C\u002Fcode>  开头，则可以在 \u003Ccode>application.yml\u003C\u002Fcode>  配置文件中添加如下配置，这样就可以不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，MP 会自动拼接：\u003C\u002Fp>\n\u003Cp>\n\u003Cimg src=\"\u002Fupload\u002F167334634342163-ZyfL.jpg\" loading=\"lazy\">\n\u003C\u002Fp>\n\u003C\u002Fli>\n\u003C\u002Fol>\n\u003Cpre>\u003Ccode>   mybatis-plus:\n     global-config:\n       db-config:\n         table-prefix: t_\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Ch3>@TableId\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：主键注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>使用示例：\u003C\u002Fp>\n\u003Cpre>\u003Ccode>\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\n@TableName("t_user")\npublic class User {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    @TableId(type = IdType.AUTO)\n    private Long id;\n    \u002F**\n     * 姓名\n     *\u002F\n    private String name;\n    \u002F**\n     * 年龄\n     *\u002F\n    private Integer age;\n    \u002F**\n     * 性别\n     *\u002F\n    private Integer gender;\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>\u003Ccode>@TableId\u003C\u002Fcode> 注解有两个属性值：\u003C\u002Fp>\n\u003Ctable>\n\u003Cthead>\n\u003Ctr>\n\u003Cth align=\"left\">属性\u003C\u002Fth>\n\u003Cth align=\"left\">类型\u003C\u002Fth>\n\u003Cth align=\"left\">必须指定\u003C\u002Fth>\n\u003Cth align=\"left\">默认值\u003C\u002Fth>\n\u003Cth align=\"left\">描述\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd align=\"left\">\u003Ccode>value\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>String\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">否\u003C\u002Ftd>\n\u003Ctd align=\"left\">""\u003C\u002Ftd>\n\u003Ctd align=\"left\">主键字段名\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd align=\"left\">\u003Ccode>type\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>Enum\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">否\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>IdType.NONE\u003C\u002Fcode> (默认雪花算法生成 ID)\u003C\u002Ftd>\n\u003Ctd align=\"left\">指定主键类型\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Ch3>@IdType\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：指定主键 ID 类型\u003C\u002Fstrong>。\u003C\u002Fp>\n\u003Ctable>\n\u003Cthead>\n\u003Ctr>\n\u003Cth>值\u003C\u002Fth>\n\u003Cth>描述\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>\u003Ccode>AUTO\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>数据库 \u003Ccode>ID\u003C\u002Fcode> 自增\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>NONE\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>未设置主键类型（默认）\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>INPUT\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>插入数据前，需自行设置主键的值\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>ASSIGN_ID\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>分配 \u003Ccode>ID\u003C\u002Fcode>(主键类型为 \u003Ccode>Number\u003C\u002Fcode>(\u003Ccode>Long\u003C\u002Fcode> 和 \u003Ccode>Integer\u003C\u002Fcode>)或 \u003Ccode>String\u003C\u002Fcode>)(since 3.3.0),使用接口\u003Ccode>IdentifierGenerator\u003C\u002Fcode>的方法\u003Ccode>nextId\u003C\u002Fcode>(默认实现类为\u003Ccode>DefaultIdentifierGenerator\u003C\u002Fcode>雪花算法)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>ASSIGN_UUID\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>分配 \u003Ccode>UUID\u003C\u002Fcode>,主键类型为 \u003Ccode>String\u003C\u002Fcode>(since 3.3.0),使用接口\u003Ccode>IdentifierGenerator\u003C\u002Fcode>的方法\u003Ccode>nextUUID\u003C\u002Fcode> (默认 \u003Ccode>default\u003C\u002Fcode> 方法)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>ID_WORKER\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>分布式全局唯一 ID 长整型类型 (推荐使用 \u003Ccode>ASSIGN_ID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>UUID\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>32 位 UUID 字符串 (推荐使用 \u003Ccode>ASSIGN_UUID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>ID_WORKER_STR\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>分布式全局唯一 ID 字符串类型 (推荐使用 \u003Ccode>ASSIGN_ID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Ch3>@TableField\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：指定数据库字段注解（非主键）\u003C\u002Fstrong>。\u003C\u002Fp>\n\u003Cp>假设表的字段名与实体类的字段名不一致，可通过它来指定，比如表字段名为 \u003Ccode>user_name\u003C\u002Fcode> 映射到实体类的字段 \u003Ccode>name\u003C\u002Fcode> 上，代码如下：\u003C\u002Fp>\n\u003Cpre>\u003Ccode>\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\n@TableName("t_user")\npublic class User {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    @TableId(type = IdType.AUTO)\n    private Long id;\n    \u002F**\n     * 姓名\n     *\u002F\n    @TableField("user_name")\n    private String name;\n    \u002F**\n     * 年龄\n     *\u002F\n    private Integer age;\n    \u002F**\n     * 性别\n     *\u002F\n    private Integer gender;\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Ch3>@TableLogic\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：逻辑删除注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cpre>\u003Ccode>@TableName("t_user")\npublic class User {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    @TableId(value = "id", type = IdType.AUTO)\n    private Long id;\n    \u002F**\n     * 姓名\n     *\u002F\n    private String name;\n    \u002F**\n     * 年龄\n     *\u002F\n    private Integer age;\n    \u002F**\n     * 性别\n     *\u002F\n    private Integer gender;\n\n    \u002F**\n     * 逻辑删除\n     *\u002F\n    @TableLogic\n    private Integer isDeleted;\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>具体如何使用，请参阅后续《逻辑删除》\u003Cspan>\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" style=\"color: #aaa; margin-left: 3px;\" aria-hidden=\"true\" focusable=\"false\" x=\"0px\" y=\"0px\" viewBox=\"0 0 100 100\" width=\"15\" height=\"15\" class=\"icon outbound\">\u003Cpath fill=\"currentColor\" d=\"M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z\">\u003C\u002Fpath> \u003Cpolygon fill=\"currentColor\" points=\"45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9\">\u003C\u002Fpolygon>\u003C\u002Fsvg> \u003Cspan class=\"sr-only\">\u003C\u002Fspan>\u003C\u002Fspan>小节，有详细教程。\u003C\u002Fp>\n\u003Ch3>@Version\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：乐观锁注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cpre>\u003Ccode>@TableName("t_seckill_goods")\npublic class SeckillGoods {\n    \u002F**\n     * 主键 ID\n     *\u002F\n    @TableId(type = IdType.AUTO)\n    private Long id;\n    \u002F**\n     * 商品名称\n     *\u002F\n    private String goodsName;\n    \u002F**\n     * 库存\n     *\u002F\n    private Integer count;\n    \u002F**\n     * 乐观锁版本号\n     *\u002F\n    @Version\n    private Integer version;\n\n}\n\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>具体如何使用，请参阅后续《乐观锁》\u003Cspan>\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" style=\"color: #aaa; margin-left: 3px;\" aria-hidden=\"true\" focusable=\"false\" x=\"0px\" y=\"0px\" viewBox=\"0 0 100 100\" width=\"15\" height=\"15\" class=\"icon outbound\">\u003Cpath fill=\"currentColor\" d=\"M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z\">\u003C\u002Fpath> \u003Cpolygon fill=\"currentColor\" points=\"45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9\">\u003C\u002Fpolygon>\u003C\u002Fsvg> \u003Cspan class=\"sr-only\">\u003C\u002Fspan>\u003C\u002Fspan>小节，有详细教程。\u003C\u002Fp>\n\u003Ch2>结语\u003C\u002Fh2>\n\u003Cp>本文带着大家快速了解了项目开发中常用的一些实体类注解，希望对小伙伴们有所帮助。\u003C\u002Fp>\n13:T5009,\u003Ch2 id=\"toc-0\">前言\u003C\u002Fh2>\n\u003Cp>大家好。\u003C\u002Fp>\n\u003Cp>本文主要带大家来看下 Mybatis Plus 框架中，使用频率非常高的几个注解及其属性值，因为编写此本教程目的是为了大家快速入门并使用 Mybatis Plus，关于注解更高级的用法请参考官网。\u003C\u002Fp>\n\u003Ch2 id=\"toc-1\">实体类常用注解\u003C\u002Fh2>\n\u003Ch3 id=\"toc-2\">@TableName\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：表名注解，标识实体类对应的表。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>使用示例：\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%2F**%0A%20*%20%40author%3A%20%E5%BC%A0%E4%B8%89%0A%20*%20%40from%3A%20%E5%85%AC%E4%BC%97%E5%8F%B7%EF%BC%9A%E5%BC%A0%E4%B8%89%2C%20%E7%BD%91%E7%AB%99%EF%BC%9Awww.mashangan.com%0A%20*%20%40date%3A%202022-12-13%2014%3A13%0A%20*%20%40version%3A%20v1.0.0%0A%20*%20%40description%3A%20TODO%0A%20**%2F%0A%40TableName(%22t_user%22)%0Apublic%20class%20User%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%A7%93%E5%90%8D%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20String%20name%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%B9%B4%E9%BE%84%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20age%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E6%80%A7%E5%88%AB%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20gender%3B%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token comment\">\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\u003C\u002Fspan>\n\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_user\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">User\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 姓名\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> name\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 年龄\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> age\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 性别\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> gender\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Cp>\u003Cem>有没有什么法子可以不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，让框架自动解析映射？\u003C\u002Fem>\u003C\u002Fp>\n\u003Cp>主要有以下两种方法：\u003C\u002Fp>\n\u003Col>\n\u003Cli>\n\u003Cp>当表名和实体类的命名一致时，如表名 \u003Ccode>user\u003C\u002Fcode> , 实体类为 \u003Ccode>User\u003C\u002Fcode> 时，可不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，Mybatis Plus 会自动完成映射，不过实际项目中，表名规范规定都会带有前缀。\u003C\u002Fp>\n\u003C\u002Fli>\n\u003Cli>\n\u003Cp>还可以通过全局配置声明表明前缀，比如你的项目里，表名规范全部以 \u003Ccode>t_\u003C\u002Fcode>  开头，则可以在 \u003Ccode>application.yml\u003C\u002Fcode>  配置文件中添加如下配置，这样就可以不用添加 \u003Ccode>@TableName\u003C\u002Fcode> 注解，MP 会自动拼接：\u003C\u002Fp>\n\u003Cp>\n\u003Cdiv class=\"img-loading\">\u003Cimg src=\"\u002Fupload\u002F167334634342163-ZyfL.jpg\" loading=\"lazy\">\u003C\u002Fdiv>\n\u003C\u002Fp>\n\u003C\u002Fli>\n\u003C\u002Fol>\n\u003Cdiv class=\"language-yaml\" data-ext=\"yaml\" data-code=\"%20%20%20mybatis-plus%3A%0A%20%20%20%20%20global-config%3A%0A%20%20%20%20%20%20%20db-config%3A%0A%20%20%20%20%20%20%20%20%20table-prefix%3A%20t_%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-yaml\">   \u003Cspan class=\"token key atrule\">mybatis-plus\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">:\u003C\u002Fspan>\n     \u003Cspan class=\"token key atrule\">global-config\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">:\u003C\u002Fspan>\n       \u003Cspan class=\"token key atrule\">db-config\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">:\u003C\u002Fspan>\n         \u003Cspan class=\"token key atrule\">table-prefix\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">:\u003C\u002Fspan> t_\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Ch3 id=\"toc-3\">@TableId\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：主键注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>使用示例：\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%2F**%0A%20*%20%40author%3A%20%E5%BC%A0%E4%B8%89%0A%20*%20%40from%3A%20%E5%85%AC%E4%BC%97%E5%8F%B7%EF%BC%9A%E5%BC%A0%E4%B8%89%2C%20%E7%BD%91%E7%AB%99%EF%BC%9Awww.mashangan.com%0A%20*%20%40date%3A%202022-12-13%2014%3A13%0A%20*%20%40version%3A%20v1.0.0%0A%20*%20%40description%3A%20TODO%0A%20**%2F%0A%40TableName(%22t_user%22)%0Apublic%20class%20User%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableId(type%20%3D%20IdType.AUTO)%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%A7%93%E5%90%8D%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20String%20name%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%B9%B4%E9%BE%84%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20age%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E6%80%A7%E5%88%AB%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20gender%3B%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token comment\">\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\u003C\u002Fspan>\n\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_user\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">User\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableId\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>type \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token class-name\">IdType\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">.\u003C\u002Fspan>\u003Cspan class=\"token constant\">AUTO\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 姓名\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> name\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 年龄\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> age\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 性别\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> gender\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Cp>\u003Ccode>@TableId\u003C\u002Fcode> 注解有两个属性值：\u003C\u002Fp>\n\u003Ctable>\n\u003Cthead>\n\u003Ctr>\n\u003Cth align=\"left\">属性\u003C\u002Fth>\n\u003Cth align=\"left\">类型\u003C\u002Fth>\n\u003Cth align=\"left\">必须指定\u003C\u002Fth>\n\u003Cth align=\"left\">默认值\u003C\u002Fth>\n\u003Cth align=\"left\">描述\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd align=\"left\">\u003Ccode>value\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>String\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">否\u003C\u002Ftd>\n\u003Ctd align=\"left\">""\u003C\u002Ftd>\n\u003Ctd align=\"left\">主键字段名\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd align=\"left\">\u003Ccode>type\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>Enum\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd align=\"left\">否\u003C\u002Ftd>\n\u003Ctd align=\"left\">\u003Ccode>IdType.NONE\u003C\u002Fcode> (默认雪花算法生成 ID)\u003C\u002Ftd>\n\u003Ctd align=\"left\">指定主键类型\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Ch3 id=\"toc-4\">@IdType\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：指定主键 ID 类型\u003C\u002Fstrong>。\u003C\u002Fp>\n\u003Ctable>\n\u003Cthead>\n\u003Ctr>\n\u003Cth>值\u003C\u002Fth>\n\u003Cth>描述\u003C\u002Fth>\n\u003C\u002Ftr>\n\u003C\u002Fthead>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>\u003Ccode>AUTO\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>数据库 \u003Ccode>ID\u003C\u002Fcode> 自增\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>NONE\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>未设置主键类型（默认）\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>INPUT\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>插入数据前，需自行设置主键的值\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>ASSIGN_ID\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>分配 \u003Ccode>ID\u003C\u002Fcode>(主键类型为 \u003Ccode>Number\u003C\u002Fcode>(\u003Ccode>Long\u003C\u002Fcode> 和 \u003Ccode>Integer\u003C\u002Fcode>)或 \u003Ccode>String\u003C\u002Fcode>)(since 3.3.0),使用接口\u003Ccode>IdentifierGenerator\u003C\u002Fcode>的方法\u003Ccode>nextId\u003C\u002Fcode>(默认实现类为\u003Ccode>DefaultIdentifierGenerator\u003C\u002Fcode>雪花算法)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Ccode>ASSIGN_UUID\u003C\u002Fcode>\u003C\u002Ftd>\n\u003Ctd>分配 \u003Ccode>UUID\u003C\u002Fcode>,主键类型为 \u003Ccode>String\u003C\u002Fcode>(since 3.3.0),使用接口\u003Ccode>IdentifierGenerator\u003C\u002Fcode>的方法\u003Ccode>nextUUID\u003C\u002Fcode> (默认 \u003Ccode>default\u003C\u002Fcode> 方法)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>ID_WORKER\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>分布式全局唯一 ID 长整型类型 (推荐使用 \u003Ccode>ASSIGN_ID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>UUID\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>32 位 UUID 字符串 (推荐使用 \u003Ccode>ASSIGN_UUID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>~~\u003Ccode>ID_WORKER_STR\u003C\u002Fcode>~~\u003C\u002Ftd>\n\u003Ctd>分布式全局唯一 ID 字符串类型 (推荐使用 \u003Ccode>ASSIGN_ID\u003C\u002Fcode>)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Ch3 id=\"toc-5\">@TableField\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：指定数据库字段注解（非主键）\u003C\u002Fstrong>。\u003C\u002Fp>\n\u003Cp>假设表的字段名与实体类的字段名不一致，可通过它来指定，比如表字段名为 \u003Ccode>user_name\u003C\u002Fcode> 映射到实体类的字段 \u003Ccode>name\u003C\u002Fcode> 上，代码如下：\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%2F**%0A%20*%20%40author%3A%20%E5%BC%A0%E4%B8%89%0A%20*%20%40from%3A%20%E5%85%AC%E4%BC%97%E5%8F%B7%EF%BC%9A%E5%BC%A0%E4%B8%89%2C%20%E7%BD%91%E7%AB%99%EF%BC%9Awww.mashangan.com%0A%20*%20%40date%3A%202022-12-13%2014%3A13%0A%20*%20%40version%3A%20v1.0.0%0A%20*%20%40description%3A%20TODO%0A%20**%2F%0A%40TableName(%22t_user%22)%0Apublic%20class%20User%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableId(type%20%3D%20IdType.AUTO)%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%A7%93%E5%90%8D%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableField(%22user_name%22)%0A%20%20%20%20private%20String%20name%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%B9%B4%E9%BE%84%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20age%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E6%80%A7%E5%88%AB%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20gender%3B%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token comment\">\u002F**\n * @author: 张三\n * @date: 2022-12-13 14:13\n * @version: v1.0.0\n * @description: TODO\n **\u002F\u003C\u002Fspan>\n\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_user\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">User\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableId\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>type \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token class-name\">IdType\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">.\u003C\u002Fspan>\u003Cspan class=\"token constant\">AUTO\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 姓名\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableField\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"user_name\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> name\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 年龄\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> age\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 性别\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> gender\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Ch3 id=\"toc-6\">@TableLogic\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：逻辑删除注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%40TableName(%22t_user%22)%0Apublic%20class%20User%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableId(value%20%3D%20%22id%22%2C%20type%20%3D%20IdType.AUTO)%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%A7%93%E5%90%8D%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20String%20name%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%B9%B4%E9%BE%84%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20age%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E6%80%A7%E5%88%AB%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20gender%3B%0A%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E9%80%BB%E8%BE%91%E5%88%A0%E9%99%A4%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableLogic%0A%20%20%20%20private%20Integer%20isDeleted%3B%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_user\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">User\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableId\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>value \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token string\">\"id\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">,\u003C\u002Fspan> type \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token class-name\">IdType\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">.\u003C\u002Fspan>\u003Cspan class=\"token constant\">AUTO\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 姓名\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> name\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 年龄\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> age\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 性别\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> gender\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\n    \u003Cspan class=\"token comment\">\u002F**\n     * 逻辑删除\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableLogic\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> isDeleted\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Cp>具体如何使用，请参阅后续《逻辑删除》\u003Cspan>\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" style=\"color: #aaa; margin-left: 3px;\" aria-hidden=\"true\" focusable=\"false\" x=\"0px\" y=\"0px\" viewBox=\"0 0 100 100\" width=\"15\" height=\"15\" class=\"icon outbound\">\u003Cpath fill=\"currentColor\" d=\"M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z\">\u003C\u002Fpath> \u003Cpolygon fill=\"currentColor\" points=\"45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9\">\u003C\u002Fpolygon>\u003C\u002Fsvg> \u003Cspan class=\"sr-only\">\u003C\u002Fspan>\u003C\u002Fspan>小节，有详细教程。\u003C\u002Fp>\n\u003Ch3 id=\"toc-7\">@Version\u003C\u002Fh3>\n\u003Cp>\u003Cstrong>作用：乐观锁注解。\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cdiv class=\"language-java\" data-ext=\"java\" data-code=\"%40TableName(%22t_seckill_goods%22)%0Apublic%20class%20SeckillGoods%20%7B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B8%BB%E9%94%AE%20ID%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40TableId(type%20%3D%20IdType.AUTO)%0A%20%20%20%20private%20Long%20id%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%95%86%E5%93%81%E5%90%8D%E7%A7%B0%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20String%20goodsName%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E5%BA%93%E5%AD%98%0A%20%20%20%20%20*%2F%0A%20%20%20%20private%20Integer%20count%3B%0A%20%20%20%20%2F**%0A%20%20%20%20%20*%20%E4%B9%90%E8%A7%82%E9%94%81%E7%89%88%E6%9C%AC%E5%8F%B7%0A%20%20%20%20%20*%2F%0A%20%20%20%20%40Version%0A%20%20%20%20private%20Integer%20version%3B%0A%0A%7D%0A\">\n        \u003Cbutton class=\"vp-copy-code-button\" data-copy data-copied=\"已复制\" aria-label=\"复制代码\">\u003C\u002Fbutton>\n        \u003Cpre>\u003Ccode class=\"language-java\">\u003Cspan class=\"token annotation punctuation\">@TableName\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>\u003Cspan class=\"token string\">\"t_seckill_goods\"\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n\u003Cspan class=\"token keyword\">public\u003C\u002Fspan> \u003Cspan class=\"token keyword\">class\u003C\u002Fspan> \u003Cspan class=\"token class-name\">SeckillGoods\u003C\u002Fspan> \u003Cspan class=\"token punctuation\">{\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 主键 ID\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@TableId\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">(\u003C\u002Fspan>type \u003Cspan class=\"token operator\">=\u003C\u002Fspan> \u003Cspan class=\"token class-name\">IdType\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">.\u003C\u002Fspan>\u003Cspan class=\"token constant\">AUTO\u003C\u002Fspan>\u003Cspan class=\"token punctuation\">)\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Long\u003C\u002Fspan> id\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 商品名称\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">String\u003C\u002Fspan> goodsName\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 库存\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> count\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n    \u003Cspan class=\"token comment\">\u002F**\n     * 乐观锁版本号\n     *\u002F\u003C\u002Fspan>\n    \u003Cspan class=\"token annotation punctuation\">@Version\u003C\u002Fspan>\n    \u003Cspan class=\"token keyword\">private\u003C\u002Fspan> \u003Cspan class=\"token class-name\">Integer\u003C\u002Fspan> version\u003Cspan class=\"token punctuation\">;\u003C\u002Fspan>\n\n\u003Cspan class=\"token punctuation\">}\u003C\u002Fspan>\n\u003C\u002Fcode>\u003C\u002Fpre>\n      \u003C\u002Fdiv>\n\u003Cp>具体如何使用，请参阅后续《乐观锁》\u003Cspan>\u003Csvg xmlns=\"http:\u002F\u002Fwww.w3.org\u002F2000\u002Fsvg\" style=\"color: #aaa; margin-left: 3px;\" aria-hidden=\"true\" focusable=\"false\" x=\"0px\" y=\"0px\" viewBox=\"0 0 100 100\" width=\"15\" height=\"15\" class=\"icon outbound\">\u003Cpath fill=\"currentColor\" d=\"M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z\">\u003C\u002Fpath> \u003Cpolygon fill=\"currentColor\" points=\"45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9\">\u003C\u002Fpolygon>\u003C\u002Fsvg> \u003Cspan class=\"sr-only\">\u003C\u002Fspan>\u003C\u002Fspan>小节，有详细教程。\u003C\u002Fp>\n\u003Ch2 id=\"toc-8\">结语\u003C\u002Fh2>\n\u003Cp>本文带着大家快速了解了项目开发中常用的一些实体类注解，希望对小伙伴们有所帮助。\u003C\u002Fp>"]