IOException:读取结束

时间:2012-04-05 20:00:42

标签: java pipe ioexception

在什么情况下,在PipedOutputStreamPipedInputStream之后,阅读结束可能已经死亡?我没有关闭任何管道。

1 个答案:

答案 0 :(得分:4)

我在代码中遇到java.io.IOException: Read end dead并找出原因。在下面发布示例代码。如果运行代码,您将收到“Read end dead”异常。如果仔细查看,消费者线程将从流中读取“hello”并终止;同时制作人睡了2秒钟并尝试写“世界”但失败了。这里解释了一个相关的问题:http://techtavern.wordpress.com/2008/07/16/whats-this-ioexception-write-end-dead/

class ReadEnd {
public static void main(String[] args) {
    final PipedInputStream in = new PipedInputStream();
    new Thread(new Runnable() { //consumer
        @Override
        public void run() {
            try {
                byte[] tmp = new byte[1024];
                while (in.available() > 0) {         // only once...
                    int i = in.read(tmp, 0, 1024);
                    if (i < 0)
                        break;
                    System.out.print(new String(tmp, 0, i));
                }
            } catch (IOException e) {
                e.printStackTrace();
            } finally {

            }
        }
    }).start();
    PipedOutputStream out = null;
    try {

        out = new PipedOutputStream(in);
        out.write("hello".getBytes());
        Thread.sleep(2 * 1000);
        out.write(" world".getBytes()); //Exception thrown here

    } catch (IOException e) {
        e.printStackTrace();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } finally {
    }
}

}