python 读取单所有json数据写入mongodb(单个)

Posted 2020-10-05 adolfmc

<--------------主函数------------------->

from pymongo import MongoClient
from bson.objectid import ObjectId
from read_json  import read



def mongoclient():
    client = MongoClient(‘127.0.0.1‘, 27017)
    db = client.test
    collection = db.test
    # collection.insert({})
    # for i in collection.find({"name":"乐清市东岸北段"}):
    #      print(i)
    data = (‘coastlines.real.json‘)
    find_Da = (‘track‘)
    find_Id = (‘coastlineid‘)
    find_Node = (‘nodes_index‘)

    want_Data = read(data, find_Da)  #传入json文件，根据关键字查询
    want_Id = read(data, find_Id)
    want_No = read(data, find_Node)
    id = {‘_id‘: ObjectId(want_Id)}
    id_print = collection.find_one(id)
    print(id_print)

    collection.update((id), {‘$set‘: {‘track‘: want_Data}})   #根据ObjectID修改track
    collection.update((id), {‘$push‘: {‘nodeindex‘: want_No}})  #根据ObjectID添加nodeindex
    collection.update((id), {‘$set‘: {‘nodeindex‘: want_No}})   #根据ObjectID修改nodeindex ,去除多余的[]


    id_change = collection.find_one(id)   #调出修改后的数据
    print("修改后:")
    print(id_change)




if __name__ ==‘__main__‘:
    mongoclient()

<---------------读取文件代码----------------------->

import json

def read(data, find):
    # 设置以utf-8解码模式读取文件，encoding参数必须设置，否则默认以gbk模式读取文件，当文件中包含中文时，会报错
    f = open(data, encoding=‘utf-8‘)
    setting = json.load(f)

    # 注意多重结构的读取语法
    # family = setting[‘BaseSettings‘][‘font‘]
    style = setting[find]


    # print(family)
    return style