java.net.UnknownHostException: cs.bohechina.com: Temporary failure in name resolution

This error message indicates that the Java application is unable to resolve the hostname "cs.bohechina.com" to an IP address. This could be due to a temporary network issue or a misconfiguration in the DNS server.

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

1. Check if you can access the website "cs.bohechina.com" from a web browser. If you cannot access it, then it is likely a network issue.

2. Check if you can resolve the hostname using the "nslookup" command in the terminal. For example, type "nslookup cs.bohechina.com" and see if it returns an IP address. If not, then it is likely a DNS issue.

3. Try using a different DNS server. You can change the DNS server settings on your computer or in the Java application to a different one, such as Google's DNS (8.8.8.8).

4. Contact the system administrator or the DNS provider to resolve the issue.