版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/weixin_38981172/article/details/89023809
# -*- coding: UTF-8 -*-
import json
def input_json_data_from_file(path):
"""
从文件中获取json数据
:param path: 文件路径
:return json_data: 返回转换为json格式后的json数据
"""
try:
with open(path, 'r+') as f:
try:
json_data = json.load(f)
except Exception as e:
print('json数据格式不正确:' + str(e))
return json_data
except Exception as e:
print('文件不存在:' + str(e))
def analyze_json(jsons):
"""
解析传进来的jsons,将jsons解析成key-value并输出
:param jsons: 需要解析的json字符串
:return:
"""
# json_data = json.loads(jsons)
# if isinstance(json_data, dict):
# isinstance函数是Python的内部函数,他的作用是判断jsons这个参数是否为dict类型
# 如果是的话返回True,否则返回False
if isinstance(jsons, dict):
for key in jsons.keys():
key_value = jsons.get(key)
if isinstance(key_value, dict):
analyze_json(key_value)
elif isinstance(key_value, list):
for json_array in key_value:
analyze_json(json_array)
else:
print(str(key) + " = " + str(key_value))
elif isinstance(jsons, list):
for json_array in jsons:
analyze_json(json_array)
else:
print('请输入正确的json数据')
def output_value(jsons, key):
"""
通过参数key,在jsons中进行匹配并输出该key对应的value
:param jsons: 需要解析的json串
:param key: 需要查找的key
:return:
"""
key_value = ''
if isinstance(jsons, dict):
for json_result in jsons.values():
if key in jsons.keys():
key_value = jsons.get(key)
else:
output_value(json_result, key)
elif isinstance(jsons, list):
for json_array in jsons:
output_value(json_array, key)
if key_value != '':
print(str(key) + " = " + str(key_value))
def main(path):
json_data = input_json_data_from_file(path)
print('原始数据:' + str(json_data))
print('……………………………………调用解析……………………………………')
# 调用解析
print('将jsons1解析后的结果如下:')
analyze_json(json_data)
print('……………………………………调用查找……………………………………')
# 调用查找
print('查找jsons1中t2key的value值如下:')
output_value(json_data, "orderId")
print('……………………………………运行结束……………………………………')
if __name__ == '__main__':
main(r"../test_data/json_data.txt")
参考:https://blog.csdn.net/songlh1234/article/details/82690948