java中PipedOutputStream和PipedInputStream类用法

最新推荐文章于 2022-08-12 00:05:47 发布

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最新推荐文章于 2022-08-12 00:05:47 发布

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分类专栏： java基础

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本文介绍了一个使用PipedOutputStream和PipedInputStream实现线程间通信的Java示例。发送者(Sender)线程通过PipedOutputStream向接收者(Receiver)线程发送消息，后者通过PipedInputStream读取消息。

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PipedOutputStream和PipedInputStream用于在应用程序中创建管道通信

实例：

import java.io.*;

public class PipedStreamTest {
	public static void main(String [] args) {
		Sender sender = new Sender();
		Receiver receiver = new Receiver();
		
		PipedOutputStream outStream = sender.getOutStream();
		PipedInputStream inStream = receiver.getInStream();
		
		try {
			//inStream.connect(outStream); // 与下一句一样
			outStream.connect(inStream);
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		sender.start();
		receiver.start();
	}
}

class Sender extends Thread {
	private PipedOutputStream outStream = new PipedOutputStream();
	
	public PipedOutputStream getOutStream() {
		return outStream;
	}
	
	public void run() {
		String info = "hello, receiver";
		
		try {
			outStream.write(info.getBytes());
			
			outStream.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

class Receiver extends Thread {
	private PipedInputStream inStream = new PipedInputStream();
	
	public PipedInputStream getInStream() {
		return inStream;
	}
	
	public void run() {
		byte[] buf = new byte[1024];
		
		try {
			int len = inStream.read(buf);
			
			System.out.println("receive message from sender : " + new String(buf, 0, len));
			
			inStream.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}	
}

其他函数请参照jdk文档