Java ThreadLocal多线程操作各自自己的对象 Demo

• 代码

package threadlocal;

public class ThreadLocalDemo {
    public static void main(String[] args) {
        AccessCount accessCount = new AccessCount();
        new Thread(()->{
            for (int i = 0; i < 10; i++) {
                Integer get = accessCount.counts.get();
                if (get == null){
                    accessCount.counts.set(1);
                }else {
                    accessCount.counts.set(get+1);
                }
            }
            System.out.println(Thread.currentThread().getName()+" count"+accessCount.counts.get());
        }).start();
        new Thread(()->{
            for (int i = 0; i < 10; i++) {
                Integer get = accessCount.counts.get();
                if (get == null){
                    accessCount.counts.set(1);
                }else {
                    accessCount.counts.set(get+1);
                }
            }
            System.out.println(Thread.currentThread().getName()+" count"+accessCount.counts.get());
        }).start();
    }
}
class AccessCount{
    public ThreadLocal<Integer> counts = new ThreadLocal<>();
}

• 运行结果