线程间共享数据的一个样例

package com.wsy.model;


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


public class ThreadScopeShareData {
	private static Map<Thread, Integer> threadDataMap = new HashMap<Thread, Integer>();


	public static void main(String[] args) {
		final A a = new A();
		final B b = new B();


		for (int i = 0; i < 2; i++) {
			new Thread(new Runnable() {
				@Override
				public void run() {
					int data = new Random().nextInt();
					System.out.println(Thread.currentThread() + " data is "
							+ data);
					threadDataMap.put(Thread.currentThread(), data);
					a.getData();
					b.getData();
				}
			}).start();
		}
	}


	static class A {


		public void getData() {
			System.out.println("A: data is "
					+ threadDataMap.get(Thread.currentThread()) + " of "
					+ Thread.currentThread().getName());
		}


	}


	static class B {
		public void getData() {
			System.out.println("B: data is "
					+ threadDataMap.get(Thread.currentThread()) + " of "
					+ Thread.currentThread().getName());
		}
	}
}

输出结果：

Thread[Thread-0,5,main] data is 160847734
Thread[Thread-1,5,main] data is 1298550232
A: data is 1298550232 of Thread-1
A: data is 160847734 of Thread-0
B: data is 160847734 of Thread-0
B: data is 1298550232 of Thread-1