检测 RuntimeException 导致Thread死亡

使用Thread.UncaughtExceptionHandler捕获并记录RuntimeException

最新推荐文章于 2020-07-28 21:41:26 发布

原创最新推荐文章于 2020-07-28 21:41:26 发布 · 237 阅读

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本文介绍如何利用Thread.UncaughtExceptionHandler类捕获并记录Runtime异常，通过实例展示了异常处理流程。

1、试用Thread.UncaughtExceptionHandler类捕获RuntimeException，并记录异常信息。

public class UncaughtExceptionLogger implements Thread.UncaughtExceptionHandler {
        private Log log = LogFactory.getLog(this.getClass());
        public void uncaughtException(Thread thead, Throwable e) {
            System.err.println( "uncaughtException: threadName=" + thead + ",msg=" + e.getMessage() );
        }
        public static void regDefault() {
            Thread.setDefaultUncaughtExceptionHandler( new UncaughtExceptionLogger() );
        }
}

2、应用实例

public class ThreadTest extends Thread {
    public ThreadTest(){
        super("threadTest");
        UncaughtExceptionLogger.regDefault();
    }
    @Override
    public void run(){

String str = null;
str.toString();

while(!Thread.currentThread().isInterrupted()){
            System.out.println("not Interrupted");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
                Thread.currentThread().interrupt();
            }
        }
    }

    public static void main(String[] strs){
        ThreadTest test = new ThreadTest();
        test.start();
    }
}