python_jsonpath方法

发布时间：2020-12-20 12:56:32 所属栏目：Python 来源：网络整理

导读：jsonpath提供了在多维字典中找到某个key的便捷方法，一定要知道哦~ 用法如下： import jsonpath #这是一个复杂的json串d = { " code " : 200 , " message " : " 成功! " , " result " : [{ " sid " : " 29668676 " , " text " : " 假如员工比老板有钱 " , "

jsonpath提供了在多维字典中找到某个key的便捷方法，一定要知道哦~

用法如下：

import jsonpath
#这是一个复杂的json串
d={
    "code": 200,"message": "成功!","result": [{
        "sid": "29668676","text": "假如员工比老板有钱","type": "video","thumbnail": "http://wimg.spriteapp.cn/picture/2019/0719/5d3140efefed1_wpd.jpg","video": "http://uvideo.spriteapp.cn/video/2019/0719/5d3140efefed1_wpd.mp4","up": "106","down": "8","forward": "2","comment": "6","uid": "20272202","name": "淼兔兔i","header": "http://wimg.spriteapp.cn/profile/large/2018/04/19/5ad85b1dc8973_mini.jpg","passtime": "2019-07-21 02:55:02"
    },{
        "sid": "29640878","text": "各大老陈醋厂家即将面临史上最大威胁","thumbnail": "http://wimg.spriteapp.cn/picture/2019/0708/5d23510ce5a84_wpd.jpg","video": "http://uvideo.spriteapp.cn/video/2019/0708/5d23510ce5a84_wpd.mp4","up": "294","down": "6","forward": "0","comment": "21","uid": "23133772","name": "雪碧与可乐","header": "http://wimg.spriteapp.cn/profile/large/2019/07/04/5d1da0563a951_mini.jpg","passtime": "2019-07-21 02:15:01"
    }]
}

#如果我们需要找到video的值，传统方法是
print（d[result][0][video]）
#使用jsonpath
result=jsonpath.jsonpath(d,‘$..video‘)
#$代表最外层，无论这个key的位置在哪里都能找到。如果对应的是多个Key,那么返回的是一个list

d2 = {
    "stu":{
        "sex":‘男‘,"house":{
            "bejing":{"四环":5,"三环":4},"上海":{"浦东":4}
        }
    }
}
print(d2[‘stu‘][‘house‘][‘上海‘][‘浦东‘])
result2=jsonpath.jsonpath(d2,‘$..浦东‘)    #无论这个key的位置在哪里都能找到
result3=jsonpath.jsonpath(d2,‘$.stu.house‘)#$代表最外层，可以一直点下去#如果找不到对应的key,返回结果是False

（编辑：李大同）

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