How-to articles, tricks, and solutions about SPRING-MVC
@Autowired - No qualifying bean of type found for dependency
No qualifying bean of type found for dependency is an error message that can occur when you are using the @Autowired annotation in Spring to inject a bean dependency.
@RequestParam vs @PathVariable
In Spring MVC, the @RequestParam annotation is used to bind a request parameter to a method parameter.
Add context path to Spring Boot application
To add a context path to a Spring Boot application, you can use the server.context-path property in the application's application.properties file.
could not extract ResultSet in hibernate
If you are trying to execute a query using Hibernate and are getting an error saying "could not extract ResultSet," it could be due to a few different issues:
How to respond with an HTTP 400 error in a Spring MVC @ResponseBody method returning String
To respond with an HTTP 400 error in a Spring MVC controller method that returns a String, you can throw a ResponseStatusException with a status of BAD_REQUEST.
How to solve the “failed to lazily initialize a collection of role” Hibernate exception
The "failed to lazily initialize a collection of role" exception in Hibernate is thrown when you try to access an uninitialized collection from a Hibernate entity when the entity is in a detached state.
How to upload a file and JSON data in Postman?
To upload a file and JSON data in Postman, you can follow these steps:
Redirect to an external URL from controller action in Spring MVC
To redirect to an external URL from a controller action in Spring MVC, you can use the RedirectView class and return it from the controller action.
Spring MVC - How to return simple String as JSON in Rest Controller
To return a simple string as JSON in a Spring MVC Rest Controller, you can use the @ResponseBody annotation and return the string directly.