你如何强制 Spring MVC4 REST web 服务只接受 json 格式的参数？

Question

有没有办法强制 Spring MVC4 REST 网络服务接受特定格式的参数或请求？我希望我的网络服务仅通过将参数附加到 url 端点来接受 JSON 参数。我尝试了下面的示例，但您可以通过 url 传递参数我希望他们以干净的 json 格式传递它我如何在 spring.

中执行此操作

 @RequestMapping(value = "/user/{id}", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<User> getUser(@PathVariable("id") long id) {
    System.out.println("Fetching User with id " + id);
    User user = userService.findById(id);
    if (user == null) {
        System.out.println("User with id " + id + " not found");
        return new ResponseEntity<User>(HttpStatus.NOT_FOUND);
    }
    return new ResponseEntity<User>(user, HttpStatus.OK);
}

Answer 1

@RequestMapping(value = "/user/{id}", 
        method = RequestMethod.GET, 
        produces = MediaType.APPLICATION_JSON_VALUE, 
        consumes = MediaType.APPLICATION_JSON_VALUE)

Answer 2

 @RequestMapping(...,consumes= MediaType.APPLICATION_JSON_VALUE)

你如何强制 Spring MVC4 REST web 服务只接受 json 格式的参数？

How do you force Spring MVC4 REST webservices to only accept parameters in json format?

java

spring

spring-mvc

spring-boot

spring-restcontroller