flask操作mongodb

一个简单的注册登录

from pymongo import MongoClient

MC = MongoClient('127.0.0.1', 27017)
MongoDB = MC['s2'] #创建数据库（内存中）

from flask import Flask, request, render_template, jsonify
from s2 import MongoDB

app = Flask(__name__)

@app.route('/reg', methods=['POST', 'GET'])
def reg():
    if request.method == 'GET':
        return render_template('reg.html')
    else:
        user_info = request.form.to_dict()
        res = MongoDB.user.insert_one(user_info) # 创建表并插入一条数据
        if res.inserted_id:
            print('注册成功')
            return '注册成功'
        return '注册失败'

@app.route('/login', methods=['POST', 'GET'])
def login():
    if request.method == 'GET':
        return render_template('login.html')
    else:
        user_info = request.form.to_dict()
        user_info_dict = MongoDB.user.find_one(user_info) #查询不到返回None
        #user_info_dict['_id'] = str(user_info_dict['_id'])
        if user_info_dict:
            #return jsonify(user_info_dict)
            return '登录成功'

if __name__ == '__main__':
    app.run()