Check the configuration file: First, ensure that the configuration items in the file are set correctly. For example, check if the database connection information, port number, etc. are correctly configured. Confirm there are no errors or omissions in the configuration file.
Check dependencies: ensure that all necessary dependencies have been correctly included in the project and are compatible with the versions. You can use build tools like Maven or Gradle to manage dependency relationships.
Check the logs: Review the log output of the Jfinal framework, search for error messages and exception stack information to identify the issue. Setting the log level to debug during startup can help in a more detailed troubleshooting process.
Check for port occupation: Ensure that the configured port number is not being used by any other applications. You can use command line tools to check for port occupation and, if necessary, modify the port number in the configuration file.
Check the code: verify if there are any errors or exceptions in the project code, especially in the initialization code that may be executed during the startup process. Identify and fix any logic in the code that could potentially cause startup failure.
Upgrade version: If the above methods fail to solve the problem, try upgrading the version of the Jfinal framework, as it may have already fixed the bug causing startup failure.
Search for community support: If you still can’t solve the problem, you can seek help on the official Jfinal community or forums, consult or ask other developers, and find more solutions.
