ThreadLocal类实现线程范围内数据共享

package cn.cblue.heima2;
import java.util.Random;
/**
* @Description: ThreadLocal类实现线程范围内数据共享
* @author huangzjb cblue2013@126.com
* @Company Digital China
* @date 2014-5-28 下午08:42:21
* @version 1.0
*/
public class ThreadLocalTest3 {
private static ThreadLocal<MyThreadScopeData1> myThreadScopeData = new ThreadLocal<MyThreadScopeData1>();
public static void main(String[] args) {
for (int i = 0; i < 2; i++) {
new Thread(new Runnable() {
public void run() {
int data = new Random().nextInt();
MyThreadScopeData myThreadScopeData = MyThreadScopeData
.getThreadIntance();
myThreadScopeData.setAge(data);
myThreadScopeData.setName("name " + data);
System.out.println(Thread.currentThread().getName()
+ " has put data : " + data);
new A().get();
new B().get();
}
}).start();
}
}

static class A {
public void get() {
MyThreadScopeData mydata = MyThreadScopeData.getThreadIntance();
System.out.println("A from  " + Thread.currentThread().getName()
+ " get data : name " + mydata.getName() + " :age "
+ mydata.getAge());
}
}

static class B {
public void get() {
MyThreadScopeData mydata = MyThreadScopeData.getThreadIntance();
System.out.println("B from  " + Thread.currentThread().getName()
+ " get data : " + mydata.getName() + " :age "
+ mydata.getAge());
}
}
}

/**
* @Description: 每个线程产生与该线程绑定的唯一一个对象
* @author huangzjb cblue2013@126.com
* @Company Digital China
* @date 2014-5-30 下午08:39:49
* @version 1.0
*/

class MyThreadScopeData {
private MyThreadScopeData() {
}
public static MyThreadScopeData getThreadIntance() {
MyThreadScopeData instance = map.get();
if (instance == null) {
instance = new MyThreadScopeData();
map.set(instance);
}
return instance;
}

private static ThreadLocal<MyThreadScopeData> map = new ThreadLocal<MyThreadScopeData>();
private String name;
private int age;

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;
}
}