In this post, we are going to see another important annotation called @RestController. It is generally used while working with Spring restful Web services implementation.
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
If we need to directly get resource from controller, we need to return @ResponseBody as per Spring 3 but with Spring 4, we can use @RestController for that.
In spring 4.0, we can use @RestController which is combination of @Controller + @ResponseBody.
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@RestController = @Controller + @ResponseBody |
So
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@Controller public class CountryController { @RequestMapping(value = "/countries", method = RequestMethod.GET,headers="Accept=application/json") public @ResponseBody List getCountries() { List listOfCountries = new ArrayList(); listOfCountries=createCountryList(); return listOfCountries; } |
Is same as
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@RestController public class CountryController { @RequestMapping(value = "/countries", method = RequestMethod.GET,headers="Accept=application/json") public List getCountries() { List listOfCountries = new ArrayList(); listOfCountries=createCountryList(); return listOfCountries; } |
Instead of annotating each method return type as @ResponseBody, we can directly annotate a class with @RestController. You can see Spring rest Json example to get complete working example on @RestController.
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