字典和json相互转换

jsonpath需要输入dict data必须是字典
d={
        "error_code": 0,
        "stu_info": [
                {
                        "id": 2059,
                        "name": "小白",
                        "sex": "男",
                        "age": 28,
                        "addr": "河南省济源市北海大道32号",
                        "grade": "天蝎座",
                        "phone": "18378309272",
                        "gold": 10896,
                        "info":{
                            "card":434345432,
                            "bank_name":'中国银行'
                        }

                },
                {
                        "id": 2067,
                        "name": "小黑",
                        "sex": "男",
                        "age": 28,
                        "addr": "河南省济源市北海大道32号",
                        "grade": "天蝎座",
                        "phone": "12345678915",
                        "gold": 100
                }
        ]
}

res= d["stu_info"][1]['name'] #取某个学生姓名的原始方法:通过查找字典中的key以及list方法中的下标索引
print(res) #输出结果是：小黑

import jsonpath
res1=jsonpath.jsonpath(d,'$..name') #嵌套n层也能取到所有学生姓名信息,$表示最外层的{}，..表示模糊匹配
print(res1) #输出结果是list：['小白', '小黑']

res2= jsonpath.jsonpath(d,'$..bank_name')
print(res2) #输出结果是list：['中国银行']

res3=jsonpath.jsonpath(d,'$..name123') #当传入不存在的key(name)时,返回False
print(res3) #输出结果是：False

dict字典转json数据

import json

def dict_to_json():
    dict = {}
    dict['name'] = 'many'
    dict['age'] = 10
    dict['sex'] = 'male'
    print(dict)  # 输出：{'name': 'many', 'age': 10, 'sex': 'male'}
    j = json.dumps(dict)
    print(j)  # 输出：{"name": "many", "age": 10, "sex": "male"}


if __name__ == '__main__':
    dict_to_json()

json数据转成dict字典

import json

def json_to_dict():
    j = '{"id": "007", "name": "007", "age": 28, "sex": "male", "phone": "13000000000", "email": "[email protected]"}'
    dict = json.loads(s=j)
    print(dict)  # {'id': '007', 'name': '007', 'age': 28, 'sex': 'male', 'phone': '13000000000', 'email': '[email protected]'}


if __name__ == '__main__':
    json_to_dict()