package com.sangfor.threadlocal;
 
public class TestThreadLocal {
    
    public static final ThreadLocal<Integer> sThreadLocal = new ThreadLocal<Integer>(){
         @Override
         protected Integer initialValue() {
             return 0;
         }
    };
    
    public static void main(String[] args) {
        for (int i = 0; i < 10; i++) {
            new MyThread(i).start();
        }
    }
    static class MyThread extends Thread {
        
        public int index;
        
        public MyThread(int index) {
            this.index = index;
        } 
        @Override
        public void run() {
            System.out.println("线程" + index + "的初始value:" + sThreadLocal.get());
                for (int i = 0; i < 10; i++) {
                    sThreadLocal.set(sThreadLocal.get() + i);
                }
            System.out.println("线程" + index + "的累加value:" + sThreadLocal.get());
        }
    }
}

线程0的初始value:0
线程0的累加value:45
线程1的初始value:0
线程1的累加value:45
线程2的初始value:0
线程2的累加value:45
线程3的初始value:0
线程3的累加value:45
线程4的初始value:0
线程4的累加value:45
线程5的初始value:0
线程5的累加value:45
线程6的初始value:0
线程7的初始value:0
线程7的累加value:45
线程6的累加value:45
线程8的初始value:0
线程8的累加value:45
线程9的初始value:0
线程9的累加value:45