SpringMVC中@RestController的用法

转自：https://blog.csdn.net/u010412719/article/details/69710480

Spring4之后新加入的注解，原来返回json需要@ResponseBody和@Controller配合。

即@RestController是@ResponseBody和@Controller的组合注解。

 @RestController
 public class HelloController {
     @RequestMapping(value="/hello",method= RequestMethod.GET)
     public String sayHello(){
         return "hello";
     }
 }

与下面的代码作用一样

 @Controller
 @ResponseBody
 public class HelloController {
     @RequestMapping(value="/hello",method= RequestMethod.GET)
     public String sayHello(){
         return "hello";
     }
 }