通过 Runnable 任务获取自定义 Thread 的属性

Question

我有一个具有属性的自定义线程类。所述属性从自定义 ThreadFactory 传递。我可以从 Runnable 任务中以某种方式获取线程对象的该属性吗？

显示想法的示例代码（可能有错误）：

public static void main(String[] args){
    MyFactory factory = new MyFactory("abc");
    ExecutorService e = Executors.newFixedThreadPool(4,factory);
    MyRunnable r = new MyRunnable();
    e.submit(r);
}

public class MyFactory implements ThreadFactory{
    private String property;
    public MyFactory(String p){
        property = p;
    }
    public MyThread newThread(Runnable r){
        MyThread out = new MyThread(r, property);
    }
}

public class MyThread extends Thread{
    private String property;
    public MyThread(Runnable r, String p){
        super(r);
        property = p;
    }
    public String getProperty(){
        return property;
    }
}

public class MyRunnable implements Runnable{
    public void run(){
        /* Can I get my "abc" property from >>HERE<< ? */
    {
{

Answer 1

您可以通过调用Thread.currentThread() 来访问run 方法中的当前线程。然后你只需要把它转换成MyThread。

class MyRunnable implements Runnable {
    public void run(){
        MyThread myThread = (MyThread) Thread.currentThread();
        System.out.println(myThread.getProperty());
    }
}