线程范围内共享数据

import java.util.HashMap;
import java.util.Map;
import java.util.Random;

/**
* 线程范围内共享数据（创建两个线程并存储不同的数据，线程独立）
* @author tanfei
* @date 2012-02-02
*/
public class ThreadScopeShareData {

private static Map<Thread, Integer> threadData = new HashMap<Thread, Integer>(); //共享数据集合

public static void main(String[] args) {
// TODO Auto-generated method stub

/*创建两个线程*/
for(int i = 0; i < 3; i++)
{
new Thread(new Runnable(){

@Override
public void run() {
int data = new Random().nextInt(); //造数据
System.out.println(Thread.currentThread().getName()
+ " put　data: " + data);
threadData.put(Thread.currentThread(), data); //将数据放入集合，以便线程操作数据
new A().get();
new B().get();
}}).start();
}
}

static class A
{
public void get()
{
int data = threadData.get(Thread.currentThread()); //根据当前线程取得数据
System.out.println("A from " + Thread.currentThread().getName()
+ " get data:" + data);
}
}

static class B
{
public void get()
{
int data = threadData.get(Thread.currentThread());
System.out.println("B from " + Thread.currentThread().getName()
+ " get data: " + data);
}
}
}