内容来自,张孝祥老师的张孝祥-Java多线程与并发库高级应用》视频教程
package com.lipeng; public class MyThreadLocalTest2 { private final static MyThreadLocal<String> myThreadLocal=new MyThreadLocal<String>(); /** * @param args */ public static void main(String[] args) { new Thread(){ public void run() { ThreadLocalData.getThreadLocalData().setAge(12); ThreadLocalData.getThreadLocalData().setName("张三"); System.out.println(Thread.currentThread().getName()+"----------------"+A.getName()); System.out.println(Thread.currentThread().getName()+"----------------"+B.getName()); }; }.start(); new Thread(){ public void run() { ThreadLocalData.getThreadLocalData().setAge(18); ThreadLocalData.getThreadLocalData().setName("李四"); System.out.println(Thread.currentThread().getName()+"----------------"+A.getName()); System.out.println(Thread.currentThread().getName()+"----------------"+B.getName()); }; }.start(); } static class A { public static String getName() { return ThreadLocalData.getThreadLocalData().getName(); } public static void setName(String name) { myThreadLocal.set(name); } } static class B { public static String getName() { return ThreadLocalData.getThreadLocalData().getName(); } public static void setName(String name) { myThreadLocal.set(name); } } } class ThreadLocalData { private static ThreadLocal<ThreadLocalData> threadLocal=new ThreadLocal<ThreadLocalData>(); private String name; private int age; private ThreadLocalData(){ //不提供public的构造方法,只提供一个静态工厂方法,此方法返回与当前线程有关的当前类的实例对象。 } public static ThreadLocalData getThreadLocalData() { ThreadLocalData threadLocalData=threadLocal.get(); if(threadLocalData==null) { threadLocalData=new ThreadLocalData(); threadLocal.set(threadLocalData); } return threadLocalData; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } } <span style="white-space:pre"> </span>我们在获取一个与线程绑定的对象时,不希望看到ThreadLocal,而是直接得到与当前线程绑定的对象,在这里,将线程绑定的类的构造方法private,提供一个静态方法,使得要获得这个类的对象,必须通过这个方法,而这个方法是从ThradLocal中get到的即使当前线程绑定的实例。
Java多线程与并发应用-(5)-如何优雅的使用ThreadLocal类
原文地址:http://blog.csdn.net/lp1137917045/article/details/45227063