深入解析ThreadLocal 详解、实现原理、使用场景…

package test2;
/**
* Created by noteless on 2019/1/30. Description:
*/
public class T21 {
//定义ThreadLocal变量
static ThreadLocal<String> threadLocal = new ThreadLocal<>();
public static void main(String[] args) {
Thread thread1 = new Thread(() -> {
//thread1中设置值
threadLocal.set("this is thread1's local");
//获取值
System.out.println(Thread.currentThread().getName()+": threadLocal value：" + threadLocal.get());
//移除值
threadLocal.remove();
//再次获取
System.out.println(Thread.currentThread().getName()+": after remove threadLocal value：" + threadLocal.get());
}, "thread1");
Thread thread2 = new Thread(() -> {
//thread2中设置值
threadLocal.set("this is thread2's local");
//获取值
System.out.println(Thread.currentThread().getName()+": threadLocal value：" + threadLocal.get());
//移除值
threadLocal.remove();
//再次获取
System.out.println(Thread.currentThread().getName()+": after remove threadLocal value：" + threadLocal.get());
}, "thread2");
thread1.start();
thread2.start();
}
}