cannot resolve Connection refused: connect

"Cannot resolve connection refused: connect" 是一个常见的网络错误，通常是由于网络连接问题或目标服务器问题导致的。这种错误可能会发生在任何类型的网络应用程序中，包括浏览器、邮件客户端和其他网络应用程序中。

解决此问题的方法可能因具体情况而异。一般而言，可能需要检查以下几个方面：
1. 检查网络连接是否正常。检查网络电缆是否连接良好，路由器是否正常工作，尝试重启网络设备并确保您的计算机已正确配置为使用网络。
2. 确保目标服务器正常运行。检查目标服务器是否处于活动状态，IP 地址是否正确等。
3. 检查防火墙设置。如果您使用了防火墙软件，请检查其设置以确保不会阻止应用程序访问网络。
4. 检查端口号是否正确。如果您在尝试连接到远程服务器的特定端口，则需要确保端口号正确并且未被阻止。

相关问题

Connection refused: connect

This error message typically occurs when a client program attempts to connect to a server program, but the server program is not running or is not accepting connections from the client. It could also occur due to network connectivity issues between the client and server.

To resolve this issue, you should first ensure that the server program is running and accepting connections. You should also check for any network connectivity issues and ensure that the client and server are able to communicate with each other. Finally, you may need to check the firewall settings on both the client and server to ensure that they are configured to allow the necessary network traffic.

java.net.ConnectException: Connection refused: connect

This error message indicates that a Java program was unable to establish a connection to a remote server or service. The most common causes of this error are:

1. The remote server or service is not running or is not accessible from the network.
2. The firewall or network settings are blocking the connection.
3. The port number or IP address is incorrect.

To resolve this issue, you can try the following steps:

1. Check that the remote server or service is running and accessible from the network.
2. Check the firewall and network settings to ensure that the connection is not being blocked.
3. Double-check the port number and IP address to ensure that they are correct.
4. If none of the above steps work, try restarting both the Java program and the remote server or service.