java5编程（5）ThreadLocal类及应用技巧 - JAVA

intln("B form " + Thread.currentThread().getName() + " get data :" + data);
}
}

}

class 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;
}
}
package com.itm.thread;

import java.util.Random;
/************
*
* 利用 ThreadLocal 。
*
* @author
*
*/
public class ThreadLocalTest {

private static ThreadLocal x = new ThreadLocal();// 泛型。

private static ThreadLocal myThreadScopeData = new ThreadLocal();

public static void main(String[] args) {
for(int i=0;i<2;i++){ // 用来创建两个线程。
new Thread( new Runnable(){ // 创建好一个线程。
@Override
public void run() {
int data = new Random().nextInt(); // 准备好数据。
System.out.println(Thread.currentThread().getName() +
" has put data :" + data);

x.set(data);// 向当前线程里面放入一个数据。把数据存在当前线程里面去了。。。

/***********
*
* 多个变量。
*
* 存数据。
*
*/
MyThreadScopeData myData = new MyThreadScopeData(); // new 一个这样的对象。
myData.setName("name " + data);
myData.setAge(data);
myThreadScopeData.set(myData); // 存数据。。。

new A().get(); // A 去取数据。
new B().get();
}
}).start();
}
}

static class A{
public void get(){
int data = x.get();// 取出存入当前线程里面的数据。。。
System.out.println("A form " + Thread.currentThread().getName() + " get data :" + data);

MyThreadScopeData myData = myThreadScopeData.get();
System.out.println("A form " + Thread.currentThread().getName() +
" getMyData : " +
myData.getName() + "," + myData.getAge());

}
}

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

}

class 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;
}
}

Thread-0 has put data :-485439611
Thread-1 has put data :198643933
A form Thread-0 get data :-485439611
A form Thread-0 getMyData : name -485439611,-485439611
A form Thread-1 get data :198643933
A form Thread-1 getMyData : name 198643933,198643933
B form Thread-1 get data :198643933
B form Thread-0 get data :-485439611

一中更加优雅的写法：

[java]
package com.itm.thread;

import java.util.Random;
/************
*
* 利用 ThreadLocal 。自己线程范围内的对象。
*
* @author
*
*/
public class CopyOfThreadLocalTest2 {

private static ThreadLocal x = new ThreadLocal();

private static ThreadLocal myThreadScopeDataTwo = new ThreadLocal();

public static void main(String[] args) {
for(int i=0;i<2;i++){ // 用来创建两个线程。
new Thread( new Runnable(){ // 创建好一个线程。
@Override
public void run() {
int data = new Random().nextInt(); // 准备好数据。
System.out.println(Thread.currentThread().getName() +
" has put data :" + data);

x.set(data);// 向当前线程里面放入一个数据。

/*MyTh

java5编程（5）ThreadLocal类及应用技巧 (三)