Front-end data is mismatching with back-end data

My front-end data from endpoints look like this:

{"code":200,
 "data":{"id":2,"信任他人程度":"","公平感知能力":"",
         "冒险程度":"","冷酷无情程度":"","反社会人格障碍":"",
         "受害者敏感性":"","受虐受害史":"","对照组编号":"1002",
         "心理理论能力":"","情感操纵":"","情绪智力":"",
         "慷慨程度":"","敌意":"","特质愤怒":"","状态愤怒":"",
         "瑞文智力测验分数":"","疼痛共情能力":"","皮质醇晨起":"7.89",
         "皮质醇睡前":"3.7","皮质醇觉醒反应":"4.69","睾酮":"",
         "社会支持":"","精神病态程度":"","脑电偏侧化睁眼":"0.129831813",
         "脑电偏侧化闭眼":"0.140590362","黑暗人格":""},
 "message":"请求成功",
 "success":true}

My back-end data come from controller looks like this:

KetiTwoGroupOne{id=2, 对照组编号=1002, 脑电偏侧化睁眼=0.129831813, 
                脑电偏侧化闭眼=0.140590362, 皮质醇睡前=3.7, 皮质醇晨起=7.89, 
                皮质醇觉醒反应=4.69, 睾酮=, 冒险程度=, 心理理论能力=, 
                公平感知能力=, 疼痛共情能力=, 慷慨程度=, 信任他人程度=, 
                瑞文智力测验分数=, 冷酷无情程度=, 精神病态程度=, 情感操纵=, 
                黑暗人格=, 受虐受害史=, 反社会人格障碍=, 社会支持=, 
                敌意=, 特质愤怒=, 状态愤怒=, 受害者敏感性=, 
                情绪智力=, 大脑数据指标=../static/ketiTwoDetainees/1_sub3316.bmp} 

They are defined in the same URL with /ketiTwoGroupOne/detail?id=2, could I get to know why they are different in data schema?

I assume that they come from the same data source and the same URL defined.