Java-list集合转成前端需要的json格式

[{"id": "111","name": "长沙","criCount":8,"sesCount":4},{"id": "222","name": "湘潭","criCount":10,"sesCount":5}
][{"长沙": 8,"湘潭":10},{"长沙": 4,"湘潭":5}
]

package com.nanjing.gulimall.zhouyimo;import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.TypeReference;import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.M