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package com.jeff.base.conn010;public class ConnThreadLocal {	public static ThreadLocal
   
     th = new ThreadLocal
    
     ();		public void setTh(String value){		th.set(value);	}	public void getTh(){		System.out.println(Thread.currentThread().getName() + ":" + this.th.get());	}		public static void main(String[] args) throws InterruptedException {				final ConnThreadLocal ct = new ConnThreadLocal();		Thread t1 = new Thread(new Runnable() {			@Override			public void run() {				ct.setTh("张三");				ct.getTh();			}		}, "t1");				Thread t2 = new Thread(new Runnable() {			@Override			public void run() {				try {					Thread.sleep(1000);					ct.getTh();				} catch (InterruptedException e) {					e.printStackTrace();				}			}		}, "t2");				t1.start();		t2.start();	}	} 
    
   

打印结果：

t1:张三t2:null

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