Python全面解析json数据并保存为csv文件

解析json数据并保存为csv文件

首先导入两个包：

import json
import pandas as pd

打开json 文件并读取：

with open('2.json', encoding='utf-8') as f:
    line = f.readline()
    d = json.loads(line)
    f.close()

读取的json数据会以字典的形势保存，按照字典的读取方式获取自己想要的数据：

datas_x = []
datas_y = []
for dss in d:
    datas_x.append(float(dss["pos"]["x"]))
    datas_y.append(float(dss["pos"]["z"]))

将数据保存到列表中，然后创建pandas的DataFrame，DataFrame是由多种类型的列构成的二维标签数据结构。

path_x = pd.Series(datas_x)
path_y = pd.Series(datas_y)
path_df = pd.DataFrame()
path_df['pathx'] = path_x
path_df['pathy'] = path_y

最后将数据保存到csv中。

filepath = "E:\\python\\python\\2021\\202104\\0409\\path_data.csv"
path_df.to_csv(filepath, index=False, header=False)

完整代码

import json
import pandas as pd
filepath = "E:\\python\\python\\2021\\202104\\0409\\path_data.csv"
with open('2.json', encoding='utf-8') as f:
    line = f.readline()
    d = json.loads(line)
    f.close()
datas_x = []
datas_y = []
for dss in d:
    datas_x.append(float(dss["pos"]["x"]))
    datas_y.append(float(dss["pos"]["z"]))
path_x = pd.Series(datas_x)
path_y = pd.Series(datas_y)
path_df = pd.DataFrame()
path_df['pathx'] = path_x
path_df['pathy'] = path_y
path_df.to_csv(filepath, index=False, header=False)

将json任意行文件转为csv文件并保存

将json格式的前3000条数据存入csv

json格式类型：

{"address": "华山路31号", "addressExtend": "屯溪老街", "amenities": [1, 2, 3, 5, 10, 12], "brandName": null, "businessZoneList": null, "cityCode": 1004, "cityName": "黄山", "coverImageUrl": "https://img20.360buyimg.com/hotel/jfs/t16351/270/1836534312/106914/9b443bc4/5a68e68aN23bfaeda.jpg", "districtName": "屯溪区", "geoInfo": {"distance": 3669, "name": "市中心", "type": 1, "typeName": "市中心"}, "grade": 5, "hotelId": 328618, "location": {"lat": "29.717982", "lon": "118.299707"}, "name": "黄山国际大酒店", "payMode": [1, 2], "price": 362, "priceStatus": 1, "promotion": [103], "saleType": 1, "score": 4.8, "star": 5, "themes": [3, 2, 4], "totalComments": 133}
{"address": "金城镇 珠山82号", "addressExtend": "", "amenities": null, "brandName": null, "businessZoneList": [{"businessZoneId": 2384, "businessZoneName": "金门机场", "poiType": null}], "cityCode": 1174, "cityName": "泉州", "coverImageUrl": null, "districtName": null, "geoInfo": {"distance": 63229, "name": "市中心", "type": 1, "typeName": "市中心"}, "grade": 2, "hotelId": 763319, "location": {"lat": "24.396442", "lon": "118.314335"}, "name": "金门珠山82号民宿", "payMode": null, "price": null, "priceStatus": 1, "promotion": null, "saleType": 0, "score": null, "star": 0, "themes": [], "totalComments": null}

json转为csv

import csv
import json
import codecs
'''
将json文件格式转为csv文件格式并保存。
'''
class Json_Csv():
#初始化方法，创建csv文件。
   def __init__(self):
       self.save_csv = open('D:/hotels_out.csv', 'w', encoding='utf-8', newline='')
       self.write_csv = csv.writer(self.save_csv, delimiter=',')  #以，为分隔符
   def trans(self,filename):
       with codecs.open(filename,'r',encoding='utf-8') as f:
           read=f.readlines()
           flag=True
           for index,info in enumerate(read):
               data=json.loads(info)
               if index <3000: #读取json文件的前3000行写入csv文件 。要是想写入全部，则去掉判断。
                   if flag: #截断第一行当做head
                       keys=list(data.keys())  #将得到的keys用列表的形式封装好，才能写入csv
                       self.write_csv.writerow(keys)
                       flag=False  #释放
                   value=list(data.values())   #写入values，也要是列表形式
                   self.write_csv.writerow(value)
           self.save_csv.close()  #写完就关闭
if __name__=='__main__':
   json_csv=Json_Csv()
   path='D:/hotels.txt'
   json_csv.trans(path)

以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。 

来源：https://blog.csdn.net/weixin_45081640/article/details/117357087