知识大全 java间的线程通信
Posted 变量
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不同线程间进行通信通常有两种简单方法
方法一 通过访问共享变量的方式(注 需要处理同步问题)
方法二 通过管道流
其中方法一有两种实现方法 即
方法一a)通过内部类实现线程的共享变量
代码如下
Java代码
/**
* 通过内部类实现线程的共享变量
*
*/
public class Innersharethread
public static void main(String[] args)
Mythread mythread = new Mythread()
mythread getThread() start()
mythread getThread() start()
mythread getThread() start()
mythread getThread() start()
class Mythread
int index = ;
private class InnerThread extends Thread
public synchronized void run()
while (true)
System out println(Thread currentThread() getName()
+ is running and index is + index++)
public Thread getThread()
return new InnerThread()
/**
* 通过内部类实现线程的共享变量
*
*/
public class Innersharethread
public static void main(String[] args)
Mythread mythread = new Mythread()
mythread getThread() start()
mythread getThread() start()
mythread getThread() start()
mythread getThread() start()
class Mythread
int index = ;
private class InnerThread extends Thread
public synchronized void run()
while (true)
System out println(Thread currentThread() getName()
+ is running and index is + index++)
public Thread getThread()
return new InnerThread()
方法二b)通过实现Runnable接口实现线程的共享变量
代码如下
Java代码
/**
* 通过实现Runnable接口实现线程的共享变量
* @author Administrator
*
*/
public class Interfacaesharethread
public static void main(String[] args)
Mythread mythread = new Mythread()
new Thread(mythread) start()
new Thread(mythread) start()
new Thread(mythread) start()
new Thread(mythread) start()
/* 实现Runnable接口 */
class Mythread implements Runnable
int index = ;
public synchronized void run()
while (true)
System out println(Thread currentThread() getName()
+ is running and the index is + index++)
/**
* 通过实现Runnable接口实现线程的共享变量
* @author Administrator
*
*/
public class Interfacaesharethread
public static void main(String[] args)
Mythread mythread = new Mythread()
new Thread(mythread) start()
new Thread(mythread) start()
new Thread(mythread) start()
new Thread(mythread) start()
/* 实现Runnable接口 */
class Mythread implements Runnable
int index = ;
public synchronized void run()
while (true)
System out println(Thread currentThread() getName()
+ is running and the index is + index++)
方法二
代码如下
Java代码
import java io IOException;
import java io PipedInputStream;
import java io PipedOutputStream;
public class CommunicateWhitPiping
public static void main(String[] args)
/**
* 创建管道输出流
*/
PipedOutputStream pos = new PipedOutputStream()
/**
* 创建管道输入流
*/
PipedInputStream pis = new PipedInputStream()
try
/**
* 将管道输入流与输出流连接
* 此过程也可通过重载的构造函数来实现
*/
nnect(pis)
catch (IOException e)
e printStackTrace()
/**
* 创建生产者线程
*/
Producer p = new Producer(pos)
/**
* 创建消费者线程
*/
Consumer c = new Consumer(pis)
/**
* 启动线程
*/
p start()
c start()
/**
* 生产者线程(与一个管道输入流相关联)
*
*/
class Producer extends Thread
private PipedOutputStream pos;
public Producer(PipedOutputStream pos)
this pos = pos;
public void run()
int i = ;
try
pos write(i)
catch (IOException e)
e printStackTrace()
/**
* 消费者线程(与一个管道输入流相关联)
*
*/
class Consumer extends Thread
private PipedInputStream pis;
public Consumer(PipedInputStream pis)
this pis = pis;
public void run()
try
System out println(pis read())
catch (IOException e)
e printStackTrace()
cha138/Article/program/Java/gj/201311/27464
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