springmvc 接收json对象的两种方式

秒速五厘米 2022-08-18 10:53 286阅读 0赞

## 1、以实体类方式接收 ##

**前端 ajax 提交数据：**

**springmvc 以model对象的形式接收：**

@Controller
    @RequestMapping("/admin/Obj")
    public class ObjAction { 
        // 注入操作类
        @Autowired
        private ObjService objService ;
    
        @RequestMapping(value = "/addObj")
        @ResponseBody
        public String addObj(@RequestBody Obj obj) {
            this.objService.insertObj(obj);
            return "success";
        }
    }

## 2、以Map接收 ##

@Controller
    @RequestMapping("/admin/Obj")
    public class ObjAction { 
        /** * 前端操作与上面相同 * @return */
        @RequestMapping(value = "/updateAttr")
        @ResponseBody
        public String updateAttr(@RequestBody Map<String, String> map) {
            if(map.containsKey("id"){
                Integer id = Integer.parseInt(map.get("id"));
            }
            if(map.containsKey("objname"){
                String objname = map.get("objname").toString();
            }
            if(map.containsKey("pid"){
                Integer pid = Integer.parseInt(map.get("pid"));
            }
            // 操作 ...
            return "success";
        }
    }

> demo 地址: [SpringMVC 接受 json 对象的两种方式][SpringMVC _ json]
> 
> 出现 415: Unsupported Media Type 原因: [\[springmvc 源码\] 415 (Unsupported Media Type) 原因及解决方案][springmvc _ 415 _Unsupported Media Type_]

[SpringMVC _ json]: https://github.com/wlmshuaia/JsonDemo
[springmvc _ 415 _Unsupported Media Type_]: http://blog.csdn.net/u012099869/article/details/78847887