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corePoolSize：核心线程数，即使空闲也保留。 maximumPoolSize：最大线程数。 keepAliveTime：非核心线程空闲存活时间。 unit：时间单位。 workQueue：阻塞队列。 threadFactory：线程工厂。 handler：拒绝策略。 二、","2026-09-16T09:13:44.180134Z",[569],{"metadata":570,"spec":573,"status":574,"postCount":88},{"name":462,"creationTimestamp":471,"labels":571,"annotations":572},{"haloweb.section":115},{"tutorial.halo.run\u002Fstatus":322},{"displayName":475,"slug":462,"cover":9,"description":476,"priority":158,"hideFromList":309,"preventParentPostCascadeQuery":309},{"permalink":478,"postCount":88,"visiblePostCount":88},[576,579,582],{"metadata":577,"spec":578},{"name":119},{"displayName":121,"slug":122},{"metadata":580,"spec":581},{"name":112},{"displayName":114,"slug":115},{"metadata":583,"spec":584},{"name":174},{"displayName":176,"slug":177},{"metadata":586,"spec":589,"status":596,"categories":600,"tags":607},{"name":587,"creationTimestamp":588},"post-jc-synchronized-vs-reentrantlock-135c349a","2026-09-13T10:00:58.693292Z",{"title":590,"slug":591,"cover":9,"excerpt":592,"publishTime":593,"categories":594,"tags":595,"priority":42,"pinned":309,"deleted":309,"visible":310,"allowComment":304},"synchronized 和 ReentrantLock 的区别？","jc-synchronized-vs-reentrantlock",{"raw":9,"autoGenerate":304},"2026-09-13T10:00:58.757444Z",[462],[112,119,174],{"permalink":597,"excerpt":598,"lastModifyTime":599,"phase":315},"\u002Farchives\u002Fjc-synchronized-vs-reentrantlock","一、底层实现 synchronized：JVM 级，字节码指令 monitorenter\u002Fmonitorexit，依赖对象头的 Mark Word。 ReentrantLock：JDK 级，基于 AQS（AbstractQueuedSynchronizer）实现。 二、对比 维度 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