後臺返回的資料為：

Map<String, String> mapList = new HashMap<String, String>();
mapList.put(key, value);
Map<String, Map<String, String>> map = new HashMap<String,Map<String, String>>();
map.put("mapList", mapList);
String jsonString = JSON.toJSONString(map);
this.writeJSON(request, response,jsonString);
 

jsp頁面解析資料如下：

success:function(result){
    var data = result.mapList;
    for(var key in data){   //key    data[key]
        console.log(key + "==" + data[key]);	
    }
}