SpringBoot相关-GET请求

@RequestMapping 和 @GetMapping @PostMapping 区别

Spring4.3中引进了｛@GetMapping、@PostMapping、@PutMapping、@DeleteMapping、@PatchMapping｝ 来帮助简化常用的HTTP方法的映射 并更好地表达被注解方法的语义

@GetMapping是一个组合注解 是@RequestMapping(method = RequestMethod.GET)的缩写

@PostMapping是一个组合注解 是@RequestMapping(method = RequestMethod.POST)的缩写

@RestController
public class GetController {
    private Map params = new HashMap<>();

    @RequestMapping(path = "/{city_id}/{user_id}", method = RequestMethod.GET)
    public Object findUser(@PathVariable("city_id") Integer cityId, @PathVariable("user_id") Integer userId) {
        params.clear();
        params.put("cityId", cityId);
        params.put("userId", userId);
        return params;
    }

    @GetMapping(value = "/v1/page_user")
    public Object pageUserV1(@RequestParam(defaultValue = "0", name = "page") int from, int size) {
        params.clear();
        params.put("from", from);
        params.put("size", size);

        return params;
    }

    @RequestMapping("v1/save_user")
    public Object saveUser(@RequestBody User user) {
        params.clear();
        params.put("user", user);
        return params;
    }

    @GetMapping("/v1/get_header")
    public Object getHeader(@RequestHeader("access_token") String accessToken, String id) {
        params.clear();
        params.put("access_token", accessToken);
        params.put("id", id);
        return params;
    }

    @GetMapping("/v1/test_request")
    public Object testRequest(HttpServletRequest request) {
        params.clear();
        String id = request.getParameter("id");
        params.put("id", id);
        return params;
    }
}