调用stop方法时会抛出java.lang.ThreadDeath异常,但一般情况下这个异常不需要显示的捕捉
1 package com.cky.thread; 2 3 /** 4 * Created by edison on 2017/12/3. 5 */ 6 public class MyThread extends Thread{ 7 @Override 8 public void run() { 9 super.run(); 10 try { 11 this.stop(); 12 } catch (ThreadDeath e) { 13 e.printStackTrace(); 14 } 15 } 16 }
1 package com.cky.test; 2 3 import com.cky.thread.MyThread; 4 5 /** 6 * Created by edison on 2017/12/3. 7 */ 8 public class Test { 9 public static void main(String[] args) { 10 MyThread th = new MyThread(); 11 th.start(); 12 } 13 }
C:itsoftjdkinjava -Didea.launcher.port=7533 "-Didea.launcher.bin.path=C:itsoftideaIntelliJ IDEA 2016.3.3in" -Dfile.encoding=UTF-8 -classpath "C:itsoftjdkjrelibcharsets.jar;C:itsoftjdkjrelibdeploy.jar;C:itsoftjdkjrelibextaccess-bridge-32.jar;C:itsoftjdkjrelibextcldrdata.jar;C:itsoftjdkjrelibextdnsns.jar;C:itsoftjdkjrelibextjaccess.jar;C:itsoftjdkjrelibextjfxrt.jar;C:itsoftjdkjrelibextlocaledata.jar;C:itsoftjdkjrelibext ashorn.jar;C:itsoftjdkjrelibextsunec.jar;C:itsoftjdkjrelibextsunjce_provider.jar;C:itsoftjdkjrelibextsunmscapi.jar;C:itsoftjdkjrelibextsunpkcs11.jar;C:itsoftjdkjrelibextzipfs.jar;C:itsoftjdkjrelibjavaws.jar;C:itsoftjdkjrelibjce.jar;C:itsoftjdkjrelibjfr.jar;C:itsoftjdkjrelibjfxswt.jar;C:itsoftjdkjrelibjsse.jar;C:itsoftjdkjrelibmanagement-agent.jar;C:itsoftjdkjrelibplugin.jar;C:itsoftjdkjrelib esources.jar;C:itsoftjdkjrelib t.jar;C:多线程核心技术第一章outproduction第一章;C:itsoftideaIntelliJ IDEA 2016.3.3libidea_rt.jar" com.intellij.rt.execution.application.AppMain com.cky.test.Test java.lang.ThreadDeath at java.lang.Thread.stop(Thread.java:853) at com.cky.thread.MyThread.run(MyThread.java:12) Process finished with exit code 0
方法stop已经作废
因为如果强制让线程停止则会使得一些清理性的工作得不到完成,另外一个就是对锁定对象进行解锁,导致数据得不到同步处理,出现数据不一致。