mapper.xml的查詢語句如下 返回類型為一個map

<select id="segmentFault" resultType="java.util.HashMap">
        select u.password, //User
                u.salt, //User
                 r.role,//Role
                  r.description //Role
            from sys_user u,sys_user_role ur,sys_role r
            where u.id=ur.user_id
            and r.id=ur.role_id 
            and u.username='zms'
</select>

dao層接收返回值類型為 User 實體類

List<User> segmentFault();

查詢出的數(shù)據(jù)從map轉(zhuǎn)換為一個javaBean
我的困惑是 遍歷 這個list 得到的是User對象這沒問題
但是當(dāng)我在controller層

  @RequestMapping(value="segmentFault",method=RequestMethod.POST)
  @ResponseBody
  public ResponseBean segmentFault(){
      List<User> result=userService.segmentFault();
      return new ResponseBean(ResponseBean.SUCCESS,"大佬萬歲!",result);
  }

返回一個Json時

{
"code": "0",
"data": [
    {
        "description": "用戶管理角色集合",
        "role": "user",
        "password": "7dfa79b6d4aab34222c9b8b14f32122c",
        "salt": "682944961e87d6f80cefbbd0a8c64292"
    },
    {
        "description": "菜單管理角色集合",
        "role": "menu",
        "password": "7dfa79b6d4aab34222c9b8b14f32122c",
        "salt": "682944961e87d6f80cefbbd0a8c64292"
    },
    {
        "description": "權(quán)限管理角色集合",
        "role": "permission",
        "password": "7dfa79b6d4aab34222c9b8b14f32122c",
        "salt": "682944961e87d6f80cefbbd0a8c64292"
    },
    {
        "description": "角色管理角色集合",
        "role": "role",
        "password": "7dfa79b6d4aab34222c9b8b14f32122c",
        "salt": "682944961e87d6f80cefbbd0a8c64292"
    },
    {
        "description": "系統(tǒng)管理瀏覽角色",
        "role": "brower",
        "password": "7dfa79b6d4aab34222c9b8b14f32122c",
        "salt": "682944961e87d6f80cefbbd0a8c64292"
    },
    {
        "description": "微信小程序管理角色",
        "role": "weixin",
        "password": "7dfa79b6d4aab34222c9b8b14f32122c",
        "salt": "682944961e87d6f80cefbbd0a8c64292"
    }

實體類Role里面的數(shù)據(jù)也出來了 1.我mapper里面映射類型是一個map 2.當(dāng)dao層接收這個返回結(jié)果集的時候 對這個map進行了轉(zhuǎn)換 轉(zhuǎn)換成User 3. 但是我controller @ResponseBody 轉(zhuǎn)換以后Role這個實體類的數(shù)據(jù)也出來了 那么我的疑問就來了 map轉(zhuǎn)換為User List<Map<String,Object>> 變?yōu)長ist<User> , 那么Role去哪了 那么@ResponseBody 是直接對未轉(zhuǎn)型前的 List<Map<String,Object>> 操作？