Java中管道报错：Write end dead

报错：Write end dead"/>

Java中管道报错：Write end dead

今天看了下关于管道的通信，Java中的管道只能在同一进程的不同线程间通信。今天测试两个线程进行通信发现报错。下面是我测试的代码。

package com.wpl.testIO;import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;public class IoOne {@SuppressWarnings("resource")public static void main(String[] args) throws IOException {final PipedOutputStream outputStream=new PipedOutputStream();final PipedInputStream inputStream=new PipedInputStream(outputStream);Thread t1=new Thread(new Runnable() {@Overridepublic void run() {try {outputStream.write("Hello world".getBytes());//outputStream.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}});Thread t2=new Thread(new Runnable() {@Overridepublic void run() {try {int count=inputStream.read();while(count!=-1&&outputStream!=null){System.out.print((char) count);count=inputStream.read();}//inputStream.close();} catch (IOException e) {e.printStackTrace();}}});t1.start();t2.start();}}

值能够读出来，但是最后还是会报错，不知道为何，往上看了很多解决办法，也没有用，同时我的输入和输出并没有显示的关闭，而是使用jdk1.7中的try-resources代替显示地调用close方法的方式。后来发现问题就出在这里将代码简单改写下，就没有报错了。

package com.wpl.testIO;import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;public class IoOne {public static void main(String[] args) throws IOException {final PipedOutputStream outputStream=new PipedOutputStream();final PipedInputStream inputStream=new PipedInputStream(outputStream);Thread t1=new Thread(new Runnable() {@Overridepublic void run() {try {outputStream.write("Hello world".getBytes());outputStream.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}});Thread t2=new Thread(new Runnable() {@Overridepublic void run() {try {int count=inputStream.read();while(count!=-1&&outputStream!=null){System.out.print((char) count);count=inputStream.read();}inputStream.close();} catch (IOException e) {e.printStackTrace();}}});t1.start();t2.start();}}