Fix Spring Boot App Won’t Run: Quick Solutions

If your Spring Boot project is unable to run, there could be multiple reasons causing this issue. Here are some possible solutions:

1. Check dependencies: Make sure the dependencies of your project are properly configured and compatible with your Spring Boot version. You can verify the dependencies are correctly configured in the pom.xml file.
2. Check the configuration file: make sure there are no errors in your application.properties or application.yml configuration file, especially in the database connection configuration.
3. Check the port number: Make sure your application is not using a port number already occupied by another program. You can configure the port number in the application.properties or application.yml file.
4. Check the logs: review your application’s log files for any errors or abnormal information.
5. Check code: Make sure to check your code for any errors or exceptions, especially in the startup class or main business logic.

If the methods mentioned above still do not resolve the issue, you can try launching the application in the console to view more detailed error information. You can start the application using the following command:

mvn spring-boot:run

If you are still unable to resolve the issue, we recommend checking the official Spring Boot documentation or seeking help in relevant forums or communities.