标签:read rgs nms encoding exe over bridge lib zip
package com.cky.bean; /** * Created by chenkaiyang on 2017/12/6. */ public class ObjectService { public void serviceMethodA(){ synchronized (this) { try { System.out.println("a begin time="+System.currentTimeMillis()); Thread.sleep(2000); System.out.println("a end time="+System.currentTimeMillis()); } catch (InterruptedException e) { e.printStackTrace(); } } } public void serviceMethodB(){ synchronized (this) { System.out.println("b begin time="+System.currentTimeMillis()); System.out.println("b end time="+System.currentTimeMillis()); } } }
package com.cky.thread; import com.cky.bean.ObjectService; /** * Created by chenkaiyang on 2017/12/5. */ public class ThreadA extends Thread{ private ObjectService service; public ThreadA(ObjectService service) { super(); this.service = service; } @Override public void run() { super.run(); service.serviceMethodA(); } }
package com.cky.thread; import com.cky.bean.ObjectService; /** * Created by chenkaiyang on 2017/12/5. */ public class ThreadB extends Thread{ private ObjectService service; public ThreadB(ObjectService service) { super(); this.service = service; } @Override public void run() { super.run(); service.serviceMethodB(); } }
package com.cky.test; import com.cky.bean.ObjectService; import com.cky.thread.ThreadA; import com.cky.thread.ThreadB; /** * Created by chenkaiyang on 2017/12/6. */ public class Test2 { public static void main(String[] args) { ObjectService objectService = new ObjectService(); ThreadA a = new ThreadA(objectService); a.setName("a"); ThreadB b = new ThreadB(objectService); b.setName("b"); a.start(); b.start(); } }
D:\it\jdk1.8\bin\java -Didea.launcher.port=7541 "-Didea.launcher.bin.path=D:\it\idea\IntelliJ IDEA 2016.3.3\bin" -Dfile.encoding=UTF-8 -classpath "D:\it\jdk1.8\jre\lib\charsets.jar;D:\it\jdk1.8\jre\lib\deploy.jar;D:\it\jdk1.8\jre\lib\ext\access-bridge-64.jar;D:\it\jdk1.8\jre\lib\ext\cldrdata.jar;D:\it\jdk1.8\jre\lib\ext\dnsns.jar;D:\it\jdk1.8\jre\lib\ext\jaccess.jar;D:\it\jdk1.8\jre\lib\ext\jfxrt.jar;D:\it\jdk1.8\jre\lib\ext\localedata.jar;D:\it\jdk1.8\jre\lib\ext\nashorn.jar;D:\it\jdk1.8\jre\lib\ext\sunec.jar;D:\it\jdk1.8\jre\lib\ext\sunjce_provider.jar;D:\it\jdk1.8\jre\lib\ext\sunmscapi.jar;D:\it\jdk1.8\jre\lib\ext\sunpkcs11.jar;D:\it\jdk1.8\jre\lib\ext\zipfs.jar;D:\it\jdk1.8\jre\lib\javaws.jar;D:\it\jdk1.8\jre\lib\jce.jar;D:\it\jdk1.8\jre\lib\jfr.jar;D:\it\jdk1.8\jre\lib\jfxswt.jar;D:\it\jdk1.8\jre\lib\jsse.jar;D:\it\jdk1.8\jre\lib\management-agent.jar;D:\it\jdk1.8\jre\lib\plugin.jar;D:\it\jdk1.8\jre\lib\resources.jar;D:\it\jdk1.8\jre\lib\rt.jar;F:\springboot\threaddemo\out\production\threaddemo;D:\it\idea\IntelliJ IDEA 2016.3.3\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain com.cky.test.Test2 a begin time=1512569404772 a end time=1512569406772 b begin time=1512569406772 b end time=1512569406772
结果分析:当一个线程访问object的一个同步代码块时,其他线程对同一个object的所有其他的同步代码块将被阻塞,这说明同步代码块使用的是对象监视
标签:read rgs nms encoding exe over bridge lib zip
原文地址:http://www.cnblogs.com/edison20161121/p/7989485.html