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";
    }
}