关于线程的异常捕获

1，对于以前的线程可以设置默认的异常处理器
public class Test1 {

public static void main(String[] args) {
Task task = new Task();
    Thread.setDefaultUncaughtExceptionHandler(new MyExcetionHandler());
Thread t = new Thread(task);
t.start();
}
}

class Task implements Runnable {
public void run() {
throw new RuntimeException("运行异常");
}

}

class MyExcetionHandler implements Thread.UncaughtExceptionHandler {

public void uncaughtException(Thread t, Throwable e) {
         System.out.println(t.getName() + "发生异常被捕获:" + e.getMessage());
}

}
2，对于新的线程，可以针对线程设置专用的异常处理器
public class Test2 {

public static void main(String[] args) {
Executor executor = Executors.newCachedThreadPool(new ThreadFactory(){
public Thread newThread(Runnable r) {
Thread t = new Thread(r);
t.setUncaughtExceptionHandler(new MyExcetionHandler2());
return t;
}

});

executor.execute(new Task2());
}


}


class Task2 implements Runnable {
public void run() {
throw new RuntimeException("运行异常");
}

}

class MyExcetionHandler2 implements Thread.UncaughtExceptionHandler {

public void uncaughtException(Thread t, Throwable e) {
         System.out.println(t.getName() + "发生异常被捕获:" + e.getMessage());
}