多线程之间的通信~~~管道通道

package ChatWithSelf;
import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.util.Scanner;
/**
 * 发送消息
 * @author Huangyujun
 *
 */
public class SendMessegeTask implements Runnable {
    private PipedOutputStream pipOutStream;
    public SendMessegeTask(PipedOutputStream pipOutStream) {
        this.pipOutStream = pipOutStream;
    }
    Scanner scanner = new Scanner(System.in);
    @Override
    public void run() {
        while(true) {
            // 不断地写入
            System.out.println("请输入要发生的内容：");
            String content = scanner.next();
            byte[] byteContent = content.getBytes();
//            new byte[1024];
//            byteContent = content.getBytes();
            try {
                pipOutStream.write(byteContent, 0, byteContent.length);
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
}

package ChatWithSelf;
import java.io.IOException;
import java.io.PipedInputStream;
/**
 * 接收消息
 * @author Huangyujun
 *
 */
public class AcceptMessegeTask implements Runnable{
    private PipedInputStream pipedInStream;
    public AcceptMessegeTask(PipedInputStream pipedInStream) {
        this.pipedInStream = pipedInStream;
    }
    @Override
    public void run() {
        while(true) {
            // 不断地读取，前面接收的是字节数组的内容
            byte[] buffer = new byte[1024];
            int read = -1;
            try {
                while((read = pipedInStream.read(buffer)) != -1) {
                    //打印到公屏上
                    System.out.println(new String(buffer));
                    //为下一次做空间准备
                    buffer = new byte[1024];
                }
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }    
    }
}

package ChatWithSelf;
import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.util.Scanner;
/**
 * 管道通信
 * @author Huangyujun
 *
 */
public class Piped {
    public static void main(String[] args) throws IOException {
        PipedInputStream pipedInStream = new PipedInputStream();
        PipedOutputStream pipOutStream = new PipedOutputStream();
        //联通
//        pipOutStream.connect(pipedInStream);
        pipedInStream.connect(pipOutStream);
        //发送消息、接收消息
        new Thread(new SendMessegeTask(pipOutStream)).start(); 
        new Thread(new AcceptMessegeTask(pipedInStream)).start(); 
    }
}