java实现多线程的两种方法 java多线程有几种实现方法,都是什么?同步有几种实现方法,...
JAVA\u591a\u7ebf\u7a0b\u6709\u54ea\u51e0\u79cd\u5b9e\u73b0\u65b9\u5f0fJAVA\u591a\u7ebf\u7a0b\u5b9e\u73b0\u65b9\u5f0f\u4e3b\u8981\u6709\u4e09\u79cd\uff1a\u7ee7\u627fThread\u7c7b\u3001\u5b9e\u73b0Runnable\u63a5\u53e3\u3001\u4f7f\u7528ExecutorService\u3001Callable\u3001Future\u5b9e\u73b0\u6709\u8fd4\u56de\u7ed3\u679c\u7684\u591a\u7ebf\u7a0b\u3002\u5176\u4e2d\u524d\u4e24\u79cd\u65b9\u5f0f\u7ebf\u7a0b\u6267\u884c\u5b8c\u540e\u90fd\u6ca1\u6709\u8fd4\u56de\u503c\uff0c\u53ea\u6709\u6700\u540e\u4e00\u79cd\u662f\u5e26\u8fd4\u56de\u503c\u7684\u3002
1\u3001\u7ee7\u627fThread\u7c7b\u5b9e\u73b0\u591a\u7ebf\u7a0b\u7ee7\u627fThread\u7c7b\u7684\u65b9\u6cd5\u5c3d\u7ba1\u88ab\u6211\u5217\u4e3a\u4e00\u79cd\u591a\u7ebf\u7a0b\u5b9e\u73b0\u65b9\u5f0f\uff0c\u4f46Thread\u672c\u8d28\u4e0a\u4e5f\u662f\u5b9e\u73b0\u4e86Runnable\u63a5\u53e3\u7684\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u5b83\u4ee3\u8868\u4e00\u4e2a\u7ebf\u7a0b\u7684\u5b9e\u4f8b\uff0c\u5e76\u4e14\uff0c\u542f\u52a8\u7ebf\u7a0b\u7684\u552f\u4e00\u65b9\u6cd5\u5c31\u662f\u901a\u8fc7Thread\u7c7b\u7684start()\u5b9e\u4f8b\u65b9\u6cd5\u3002start()\u65b9\u6cd5\u662f\u4e00\u4e2anative\u65b9\u6cd5\uff0c\u5b83\u5c06\u542f\u52a8\u4e00\u4e2a\u65b0\u7ebf\u7a0b\uff0c\u5e76\u6267\u884crun()\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u5f0f\u5b9e\u73b0\u591a\u7ebf\u7a0b\u5f88\u7b80\u5355\uff0c\u901a\u8fc7\u81ea\u5df1\u7684\u7c7b\u76f4\u63a5extend Thread\uff0c\u5e76\u590d\u5199run()\u65b9\u6cd5\uff0c\u5c31\u53ef\u4ee5\u542f\u52a8\u65b0\u7ebf\u7a0b\u5e76\u6267\u884c\u81ea\u5df1\u5b9a\u4e49\u7684run()\u65b9\u6cd5\u3002\u4f8b\u5982\uff1a
[java] view plain copy
public class MyThread extends Thread {
public void run() {
System.out.println("MyThread.run()");
}
}
\u5728\u5408\u9002\u7684\u5730\u65b9\u542f\u52a8\u7ebf\u7a0b\u5982\u4e0b\uff1a[java] view plain copy
MyThread myThread1 = new MyThread();
MyThread myThread2 = new MyThread();
myThread1.start();
myThread2.start();
2\u3001\u5b9e\u73b0Runnable\u63a5\u53e3\u65b9\u5f0f\u5b9e\u73b0\u591a\u7ebf\u7a0b\u5982\u679c\u81ea\u5df1\u7684\u7c7b\u5df2\u7ecfextends\u53e6\u4e00\u4e2a\u7c7b\uff0c\u5c31\u65e0\u6cd5\u76f4\u63a5extends Thread\uff0c\u6b64\u65f6\uff0c\u5fc5\u987b\u5b9e\u73b0\u4e00\u4e2aRunnable\u63a5\u53e3\uff0c\u5982\u4e0b\uff1a[java] view plain copy
public class MyThread extends OtherClass implements Runnable {
public void run() {
System.out.println("MyThread.run()");
}
}
\u4e3a\u4e86\u542f\u52a8MyThread\uff0c\u9700\u8981\u9996\u5148\u5b9e\u4f8b\u5316\u4e00\u4e2aThread\uff0c\u5e76\u4f20\u5165\u81ea\u5df1\u7684MyThread\u5b9e\u4f8b\uff1a[java] view plain copy
MyThread myThread = new MyThread();
Thread thread = new Thread(myThread);
thread.start();
\u4e8b\u5b9e\u4e0a\uff0c\u5f53\u4f20\u5165\u4e00\u4e2aRunnable target\u53c2\u6570\u7ed9Thread\u540e\uff0cThread\u7684run()\u65b9\u6cd5\u5c31\u4f1a\u8c03\u7528target.run()\uff0c\u53c2\u8003JDK\u6e90\u4ee3\u7801\uff1a[java] view plain copy
public void run() {
if (target != null) {
target.run();
}
}
3\u3001\u4f7f\u7528ExecutorService\u3001Callable\u3001Future\u5b9e\u73b0\u6709\u8fd4\u56de\u7ed3\u679c\u7684\u591a\u7ebf\u7a0bExecutorService\u3001Callable\u3001Future\u8fd9\u4e2a\u5bf9\u8c61\u5b9e\u9645\u4e0a\u90fd\u662f\u5c5e\u4e8eExecutor\u6846\u67b6\u4e2d\u7684\u529f\u80fd\u7c7b\u3002\u60f3\u8981\u8be6\u7ec6\u4e86\u89e3Executor\u6846\u67b6\u7684\u53ef\u4ee5\u8bbf\u95eehttp://www.javaeye.com/topic/366591 \uff0c\u8fd9\u91cc\u9762\u5bf9\u8be5\u6846\u67b6\u505a\u4e86\u5f88\u8be6\u7ec6\u7684\u89e3\u91ca\u3002\u8fd4\u56de\u7ed3\u679c\u7684\u7ebf\u7a0b\u662f\u5728JDK1.5\u4e2d\u5f15\u5165\u7684\u65b0\u7279\u5f81\uff0c\u786e\u5b9e\u5f88\u5b9e\u7528\uff0c\u6709\u4e86\u8fd9\u79cd\u7279\u5f81\u6211\u5c31\u4e0d\u9700\u8981\u518d\u4e3a\u4e86\u5f97\u5230\u8fd4\u56de\u503c\u800c\u5927\u8d39\u5468\u6298\u4e86\uff0c\u800c\u4e14\u5373\u4fbf\u5b9e\u73b0\u4e86\u4e5f\u53ef\u80fd\u6f0f\u6d1e\u767e\u51fa\u3002\u53ef\u8fd4\u56de\u503c\u7684\u4efb\u52a1\u5fc5\u987b\u5b9e\u73b0Callable\u63a5\u53e3\uff0c\u7c7b\u4f3c\u7684\uff0c\u65e0\u8fd4\u56de\u503c\u7684\u4efb\u52a1\u5fc5\u987bRunnable\u63a5\u53e3\u3002\u6267\u884cCallable\u4efb\u52a1\u540e\uff0c\u53ef\u4ee5\u83b7\u53d6\u4e00\u4e2aFuture\u7684\u5bf9\u8c61\uff0c\u5728\u8be5\u5bf9\u8c61\u4e0a\u8c03\u7528get\u5c31\u53ef\u4ee5\u83b7\u53d6\u5230Callable\u4efb\u52a1\u8fd4\u56de\u7684Object\u4e86\uff0c\u518d\u7ed3\u5408\u7ebf\u7a0b\u6c60\u63a5\u53e3ExecutorService\u5c31\u53ef\u4ee5\u5b9e\u73b0\u4f20\u8bf4\u4e2d\u6709\u8fd4\u56de\u7ed3\u679c\u7684\u591a\u7ebf\u7a0b\u4e86\u3002\u4e0b\u9762\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684\u6709\u8fd4\u56de\u7ed3\u679c\u7684\u591a\u7ebf\u7a0b\u6d4b\u8bd5\u4f8b\u5b50\uff0c\u5728JDK1.5\u4e0b\u9a8c\u8bc1\u8fc7\u6ca1\u95ee\u9898\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u3002
java\u4e2d\u591a\u7ebf\u7a0b\u7684\u5b9e\u73b0\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a1.\u76f4\u63a5\u7ee7\u627fthread\u7c7b\uff1b2.\u5b9e\u73b0runnable\u63a5\u53e3\uff1b\u540c\u6b65\u7684\u5b9e\u73b0\u65b9\u6cd5\u6709\u4e94\u79cd\uff1a1.\u540c\u6b65\u65b9\u6cd5\uff1b2.\u540c\u6b65\u4ee3\u7801\u5757\uff1b3.\u4f7f\u7528\u7279\u6b8a\u57df\u53d8\u91cf(volatile)\u5b9e\u73b0\u7ebf\u7a0b\u540c\u6b65\uff1b4.\u4f7f\u7528\u91cd\u5165\u9501\u5b9e\u73b0\u7ebf\u7a0b\u540c\u6b65\uff1b5.\u4f7f\u7528\u5c40\u90e8\u53d8\u91cf\u5b9e\u73b0\u7ebf\u7a0b\u540c\u6b65
\u3002
\u5176\u4e2d\u591a\u7ebf\u7a0b\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u9700\u6ce8\u610f\u91cd\u5199\u6216\u8005\u8986\u76d6run()\u65b9\u6cd5\uff0c\u800c\u5bf9\u4e8e\u540c\u6b65\u7684\u5b9e\u73b0\u65b9\u6cd5\u4e2d\u4f7f\u7528\u8f83\u5e38\u4f7f\u7528\u7684\u662f\u5229\u7528synchronized\u7f16\u5199\u540c\u6b65\u65b9\u6cd5\u548c\u4ee3\u7801\u5757\u3002
public void run(){
System.out.println("第一种方法");
}
};
t1.start();
Thread t2=new Thread(new Runnable() {
public void run() {
System.out.println("第二种方法，可实现同类下各线程数据共享");
}
});
t2.start();
你好，java实现多线程的两种方法是
1、继承Thread
2、实现Runnable
实现Runnable接口，或者继承Thread类。
然后重写run()方法。
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