是否关闭套接字的输入流也关闭套接字连接？ [英] Does closing the inputstream of a socket also close the socket connection?

问题描述

在的Java API，

In Java API,

Socket socket = serverSocket.accept();
BufferedReader fromSocket = new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter toSocket = new PrintWriter(socket.getOutputStream());
//do sth with fromSocket ... and close it
fromSocket.close();
//then write to socket again
toSocket.print("is socket connection still available?\r\n");
//close socket
socket.close();

在上面的code，之后我关闭InputStream fromSocket，似乎插座连接不可用了 - 客户不会收到是socket连接仍然可用的消息。
这是否意味着关闭套接字的输入流也关闭套接字本身呢？

In the above code, after I close the InputStream fromSocket, it seems that the socket connection is not available anymore--the client wont receive the "is socket connection still available" message. Does that mean that closing the inputstream of a socket also closes the socket itself?

推荐答案

是，关闭输入流关闭套接字。您需要使用套接字的shutdownInput方法，以<一个href=\"http://download.oracle.com/javase/1.4.2/docs/api/java/net/Socket.html#shutdownInput%28%29\">close刚输入流：

Yes, closing the input stream closes the socket. You need to use the shutdownInput method on socket, to close just the input stream:

//do sth with fromSocket ... and close it 
socket.shutdownInput(); 

然后，您仍然可以发送到输出插孔

Then, you can still send to the output socket

//then write to socket again 
toSocket.print("is socket connection still available?\r\n"); 
//close socket 
socket.close(); 

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