java.net.SocketException： Invalid argument： connect
2022-09-03 13:36:07
我的新笔记本电脑（Alienware m17x）在我运行以下基本代码时抛出一个：java.net.SocketException: Invalid argument: connect
服务器.java：
public static void main (String[] args) throws Exception {
ServerSocket serverSocket = new ServerSocket (8888);
Socket socket = serverSocket.accept();
}
客户.java：
public static void main (String[] args) throws Exception {
Socket socket = new Socket ("localhost", 8888);
}
每次我运行客户端.java（启动服务器.java后）我都会收到此套接字异常。下面是异常的完整跟踪：
Exception in thread "main" java.net.SocketException: Invalid argument: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(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.main(Client.java:5)
我已经尝试了一些事情，但没有运气，这个例外总是抛出。以下是我的结论：
- 更改端口号不会更改任何内容。
- 这不是网络的问题。我在学校和家里都有例外。
- 我已经重新安装了JVM和JDK，但没有运气。
- 这只发生在一台计算机上。我已经在桌面上运行了相同的代码，并且没有任何异常。我在两者都使用Windows 7。
- 它未被防火墙阻止。我已关闭防火墙，但仍有此问题。
我应该做什么或检查来解决此问题？
编辑：路线打印输出：
===========================================================================
Interface List
15...e4 d5 3d 08 cb 83 ......Killer Wireless-N 1103 Network Adapter
13...d0 df 9a b5 73 dc ......Bluetooth Device (Personal Area Network)
11...d4 be d9 00 10 65 ......Atheros AR8151 PCI-E Gigabit Ethernet Controller (NDIS 6.20)
1...........................Software Loopback Interface 1
17...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
16...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
18...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
19...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #3
===========================================================================
IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.191 25
127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
192.168.0.0 255.255.255.0 On-link 192.168.0.191 281
192.168.0.191 255.255.255.255 On-link 192.168.0.191 281
192.168.0.255 255.255.255.255 On-link 192.168.0.191 281
224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
224.0.0.0 240.0.0.0 On-link 192.168.0.191 281
255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
255.255.255.255 255.255.255.255 On-link 192.168.0.191 281
===========================================================================
Persistent Routes:
None
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
17 58 ::/0 On-link
1 306 ::1/128 On-link
17 58 2001::/32 On-link
17 306 2001:0:4137:9e76:28f3:2721:524f:e2ef/128
On-link
15 281 fe80::/64 On-link
17 306 fe80::/64 On-link
17 306 fe80::28f3:2721:524f:e2ef/128
On-link
15 281 fe80::68c1:bc79:fefa:88a2/128
On-link
1 306 ff00::/8 On-link
17 306 ff00::/8 On-link
15 281 ff00::/8 On-link
===========================================================================
Persistent Routes:
None
编辑：正如@PhilippeLM和@beny23让我意识到的那样，将java系统变量java.net.preferIPv4Stack设置为true可以解决我的问题。但是，我想要一个永久的修复。我不想在每次运行Java应用程序时都指定系统变量。
以下是我再次尝试而没有运气的东西：
- 按照以下步骤将我的计算机首选项设置为首选 IPv4
- 将该行添加到 文件中。
java.net.preferIPv4Stack=truenet.properties%JAVA_HOME%\jre\lib
还有什么我可以尝试的吗？
