Spring MVC @RequestMapping annotation example

We have already seen Spring MVC hello world example. @RequestMapping is one of important annotation which you use in Spring MVC.

Spring MVC tutorial:

• Spring MVC hello world example
• Spring MVC Hibernate MySQL example
• Spring MVC interceptor example
• Spring MVC angularjs example
• Spring MVC @RequestMapping example
• Spring Component,Service, Repository and Controller example
• Spring MVC @ModelAttribute annotation example
• Spring MVC @RestController annotation example
• Spring MultiActionController Example
• Spring MVC ModelMapSpring MVC file upload example
• Spring restful web service example
• Spring restful web service json example
• Spring Restful web services CRUD example
• Spring security hello world example
• Spring security custom login form example

@RequestMapping is used to define mapping of web request to handler method or class. @RequestMapping can be used at method level or class level. We will see example of it later.
If you use @RequestMapping annotation at class level, it will be used for relative path for method level path.
Lets understand with the help of example:

so web request with URL http://localhost:8080/ProjectName/countryController/countries will execute getCountries() method. Below image will make it clear:

Method level RequestMapping example :

so web request with URL http://localhost:8080/ProjectName/countries will execute getCountries() method.

Class level RequestMapping example :

If you notice, we did not define method level request mapping here, so it will automatically call corresponding PUT or POST method when you hit :
http://localhost:8080/ProjectName/countries If you want to practice more examples for @RequestMapping annotation, you can go through Spring Rest CRUD example. It will definitely help you to understand @RequestMapping annotation better.