jsonpath的安装
pip install jsonpath
jsonpath的使用：
obj = json.load(open('json文件', 'r', encoding='utf-8'))
ret = jsonpath.jsonpath(obj, 'jsonpath语法')
json文件：文章来源：https://www.toymoban.com/news/detail-630642.html
{ "store": {
"book": [
{ "category": "末世",
"author": "晨星LL",
"title": "这游戏也太真实了",
"price": 8.95
},
{ "category": "玄幻",
"author": "辰东",
"title": "遮天",
"price": 12.99
},
{ "category": "御兽",
"author": "清泉流响",
"title": "不科学御兽",
"isbn": "0-553-21311-3",
"price": 8.99
},
{ "category": "科幻",
"author": "我吃西红柿",
"title": "吞噬星空",
"isbn": "0-395-19395-8",
"price": 22.99
}
],
"bicycle": {
"author": "车厂",
"color": "blue",
"price": 19.95
}
}
}
- 书店所有书的作者
# *代表全部 可以根据下标来获取第几本书
book_list = jsonpath.jsonpath(obj, '$.store.book[*].author')
print(book_list)
- 所有的作者
book_list = jsonpath.jsonpath(obj, '$..author')
print(book_list)
- store下面所有的元素
book_list = jsonpath.jsonpath(obj, '$.store[*]')
print(book_list)
- store里面所有东西的price
book_list = jsonpath.jsonpath(obj, '$.store..price')
print(book_list)
- 第三本书
book_list = jsonpath.jsonpath(obj, '$..book[2]')
print(book_list)
- 最后一本书
book_list = jsonpath.jsonpath(obj, '$..book[(@.length-1)]')
print(book_list)
- 前两本书
# 两种写法
book_list = jsonpath.jsonpath(obj, '$..book[0,1]')
book_list = jsonpath.jsonpath(obj, '$..book[:2]')
print(book_list)
- 条件过滤需要在()的前面添加一个?
- 过滤出所有包含isbn的书
book_list = jsonpath.jsonpath(obj, '$..book[?(@.isbn)]')
print(book_list)
- 哪本书超过了10块钱
book_list = jsonpath.jsonpath(obj, '$..book[?(@.price>10)]')
print(book_list)
参考：https://blog.csdn.net/Obstinate_L/article/details/125294971文章来源地址https://www.toymoban.com/news/detail-630642.html
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