SpringBoot @RestController與@Controller區別

@RestController

Spring4之後新加入的註解，原來返回JSON需要@ResponseBody和@Controller配合。

即@RestController是@ResponseBody和@Controller的組合註解

@RestController = @Controller + @ResponseBody；

@RestController
public class TestController {

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

與下面的一樣：

@Controller
@ResponseBody
public class TestController {

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