java.net.UnknownHostException: zxhc: zxhc: Name or service not known

This exception is thrown when the Java application is unable to resolve the hostname "zxhc" to an IP address. This can occur due to various reasons such as:

1. Incorrect hostname: The hostname provided in the code might be incorrect.

2. DNS resolution failure: The DNS server might be unreachable or not responding.

3. Network connectivity issues: The application might not have network connectivity to resolve the hostname.

To resolve this issue, you can try the following:

1. Check the hostname: Verify that the hostname provided in the code is correct.

2. Check DNS resolution: Try pinging the hostname from the command line to see if it resolves to an IP address. If not, try using a different DNS server.

3. Check network connectivity: Verify that the application has network connectivity and can access the DNS server.