Java套接字 - java.net.ConnectException：连接被拒绝：连接 [英] Java sockets - java.net.ConnectException: Connection refused: connect

问题描述

我创建了一个简单的聊天程序，它使用套接字进行通信。当我在localhost上运行时，一切正常。但是，当我尝试使用我的IP链接客户端和服务器程序时会出现问题。

I've created a simple chat program which communicates using sockets. Everything works fine when I'm running it on localhost. However, the problems occur when I try to link the client and server programs using my IP.

http://www.canyouseeme.org/ 可以通过端口9999连接到我的服务器，所以我知道服务器正常，端口已打开。但是，我的客户端无法连接。

http://www.canyouseeme.org/ can connect to my server on port 9999 so I know that the server is fine and the port is open. However, my client can't connect.

错误日志...

java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at Client.connect(Client.java:129)
at Client.main(Client.java:47)

有人知道可能导致这种情况的原因吗？提前致谢。

Does anybody have any idea what might be causing this? Thanks in advance.

修改：
链接到完整的源代码：

Links to the full source code:

http://pastebin.com/2XftHtn9

推荐答案

查看以下答案： java .net.ConnectException：连接被拒绝

我的第一个怀疑是防火墙问题......

My first suspicion however would be a firewall issue.....

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