你如何处理Java中的Socket Disconnecting？ [英] How do you handle Socket Disconnecting in Java?

问题描述

嘿所有人。我有一个使用ServerSocket和Socket类用java编写的服务器。

我希望能够检测并处理断开连接，然后在必要时重新连接新客户端。

检测客户端断开连接，关闭套接字，然后接受新客户端的正确步骤是什么？

解决方案

据推测，你是从套接字读取，可能使用输入流上的包装器，例如BufferedReader。在这种情况下，当相应的读操作返回-1（对于原始read（）调用）或null（对于readLine（）调用）时，可以检测到流结束。

某些操作在关闭的套接字上执行时会导致SocketException，您还需要适当处理。

Hey all. I have a server written in java using the ServerSocket and Socket classes.

I want to be able to detect and handle disconnects, and then reconnect a new client if necessary.

What is the proper procedure to detect client disconnections, close the socket, and then accept new clients?

解决方案

Presumably, you're reading from the socket, perhaps using a wrapper over the input stream, such as a BufferedReader. In this case, you can detect the end-of-stream when the corresponding read operation returns -1 (for raw read() calls), or null (for readLine() calls).

Certain operations will cause a SocketException when performed on a closed socket, which you will also need to deal with appropriately.

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