java spring get请求_SpringBoot HTTP接口 GET请求

1. 普通传参

@RequestMapping(path = "/{city_id}/{user_id}", method = RequestMethod.GET)

public Object findUser(@PathVariable("city_id") String cityId,

@PathVariable("user_id") String userId) {

params.clear();

params.put("cityId", cityId);

params.put("userId", userId);

return params;

}

2. GetMapping注解

@GetMapping(value = "/v1/page_user1")

public Object pageUser(int from, int size) {

params.clear();

params.put("from", from);

params.put("size", size);

return params;

}

3. 默认值，参数是否必须

@GetMapping(value = "/v1/page_user2")

public Object pageUserV2(@RequestParam(defaultValue = "0", name = "page", required = true) int from, int size) {

params.clear();

params.put("from", from);

params.put("size", size);

return params;

}

4. bean对象传参

@GetMapping("/v1/save_user")

public Object saveUser(@RequestBody User user) {

params.clear();

params.put("user", user);

return params;

}

注意：

需要指定 http content-type 为 application/json

使用body传输数据(针对postman而言)

5. 获取http头信息

@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;

}

6. HttpServletRequest

@GetMapping("/v1/test_request")

public Object testRequest(HttpServletRequest request) {

params.clear();

String id = request.getParameter("id");

params.put("id", id);

return params;

}