Python提取JSON格式数据实战案例

import json

import json

strDict = '{"city": "广州", "name": "小黑"}'
print(type(strDict)) #<class 'str'>

# 将json格式数据转换为python格式，可以看出将str还原为了dict格式
r = json.loads(strDict) 
print(r,type(r)) # {'city': '广州', 'name': '小黑'} <class 'dict'>

import json

listStr = [1, 2, 3, 4]
dictStr = {"city": "北京", "name": "大猫"}
print(type(listStr)) # <class 'list'>
print(type(dictStr)) #<class 'dict'>

# 将python数据转为json格式，可以看出转换后的数据类型均变为了str
s1 = json.dumps(listStr)
s2 = json.dumps(dictStr,ensure_ascii=False)

print(s1,type(s1)) # [1, 2, 3, 4] <class 'str'>
print(s2,type(s2)) # {"city": "北京", "name": "大猫"} <class 'str'>

{
    "animals": {
        "dog": [
            {
                "name": "Rufus",
                "age":15
            },
            {
                "name": "Marty",
                "age": null
            }
        ]
    }
}

load_data = json.loads(dump_data)
data = load_data['animals']['dog']
result1 = []
for i in data:
    result1.append(i.["name"])
print(result1)

load_data = json.loads(dump_data)
jobs=load_data['animals']['dog']
result2 = []
for i in data:
# 从根节点开始，匹配name节点
    result2.append(jsonpath.jsonpath(i,'$..name')[0])
print(result2)