wcgn.net
当前位置:首页 >> thrEADloCAlmAp >>

thrEADloCAlmAp

dLocalMap threadlocalmap = getMap(thread); if(threadlocalmap != null) { ThreadLocalMap.Entry entry = threadlocalmap.getEntry(this); if(entry != null)

dLocalMap threadlocalmap = getMap(thread); if(threadlocalmap != null) { ThreadLocalMap.Entry entry = threadlocalmap.getEntry(this); if(entry != null)

private static ThreadLocal connectionHolder = new ThreadLocal();/*** 获得数据库连接*/public static Connection getConnection(){if(null == connectionHolder.get()){try {conn = DriverManager.getConnection(url, user, password);} cat...

dLocalMap threadlocalmap = getMap(thread); if(threadlocalmap != null) { ThreadLocalMap.Entry entry = threadlocalmap.getEntry(this); if(entry != null)

从如下8点来讲解一下: 1.ThreadLocal用来解决多线程程序的并发问题 2.ThreadLocal并不是一个Thread,而是Thread的局部变量,当使用ThreadLocal维护变量时,ThreadLocal为每个使用该变量的线程提供独立的变量副本,所以每个线程都 可以独立地改变自...

threadlocal里面使用了一个存在弱引用的map,当释放掉threadlocal的强引用以后,map里面的value却没有被回收.而这块value永远不会被访问到了. 所以存在着内存泄露. 最好的做法是将调用threadlocal的remove方法. 在threadlocal的生命周期中,都存在...

网站首页 | 网站地图
All rights reserved Powered by www.wcgn.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com