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