处理非正常终止的错误

1.　　最简单通过主动的内部函数的方法捕获

package concurrent._ThreadPool._UnnormalThread;


import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

//一种主动的方法捕获异常
public class Demo {

    public static void main(String[] args) {
        Catch aCatch = new Catch();
        Catch.ThreadA threadA = aCatch.new ThreadA();
        ExecutorService executorService = Executors.newFixedThreadPool(3);
        executorService.execute(threadA);
    }
}

class Catch{

    private void threadDeal(Throwable t){
        System.out.println("Exception" + t.getMessage());
    }

    class ThreadA implements Runnable{

        @Override
        public void run() {
            Throwable throwable = null;
            try{
                System.out.println(3/0);
            }catch (Throwable t){       //Error 和 Exception都是Throwable的子类
                throwable = t;
            }finally {
                threadDeal(throwable);
            }
        }
    }


}

2.　　通过设置一个默认的UncaughtExceptionHandler来处理所有的异常

package concurrent._ThreadPool._UnnormalThread;

import java.lang.Thread.UncaughtExceptionHandler;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

//一种主动的方法捕获异常
public class Demo2 {

    public static void main(String[] args) {
        Thread.setDefaultUncaughtExceptionHandler(new MyExceptionhandler());
        ThreadA threadA = new ThreadA();
        ExecutorService executorService = Executors.newFixedThreadPool(3);
        executorService.execute(threadA);
    }
}
class MyExceptionhandler implements UncaughtExceptionHandler {

    @Override
    public void uncaughtException(Thread t, Throwable e) {
        System.out.println(e.getMessage());
    }
}

class ThreadA implements Runnable{

    @Override
    public void run() {
        System.out.println(3/0);
    }
}

3.