MongoDB简单使用demo

# -*- coding:utf-8 -*-

from pymongo import MongoClient

settings = {
    'ip': '127.0.0.1',  # ip地址
     'port': 27017,  # 端口, mongodb默认端口27017
    'db_name': 'test',  # 数据库名字
     'set_name': 'test_set'  # 集合(相当于mysql的表)名字
}


# 定义mongodb的通用接口
class MyMongoDB(object):
    # 初始化函数
    def __init__(self):
        try:
            self.conn = MongoClient(
                settings['ip'], settings['port']
            )
        except Exception as e:
            print e
        self.db = self.conn[settings['db_name']]
        self.my_set = self.db[settings['set_name']]

    # 插入数据函数定义
    def insert1(self, dic):
        print 'insert...'
        self.my_set.insert(dic)

    # 更新数据函数定义
    def update(self, olddic, newdic):
        print 'update...'
        self.my_set.update(olddic, newdic)

    # 删除数据函数定义
    def delete(self, dic):
        print 'delete...'
        self.my_set.remove(dic)

    # 查询数据函数定义
    def dbfind(self, dic):
        print 'find...'
        data = self.my_set.find(dic)
        for res in data:
            print 'name==%s, age==%s' % (res['name'], res['age'])

def main():
    dic = {'name': 'zhangsan', 'age': 22}
    mongo = MyMongoDB()

    # 插入数据
     mongo.insert1(dic)
    mongo.dbfind({'name': 'zhangsan'})  # 查看数据

     # 修改数据
     mongo.update({'name': 'zhangsan'}, {'$set': {'age': 25}})
    mongo.dbfind({'name': 'zhangsan'})  # 查看数据

     # 删除数据
     mongo.delete({'name': 'zhangsan'})
    mongo.dbfind({'name': 'zhangsan'})

if __name__ == '__main__':

    main()

# 条件操作符
# 查询集合中age大于25的记录
# for i in my_set.find({"age": {"$gt": 25}}):
#     print i

# 判断类型
# for i in my_set.find({"name": {'$type': 3}}):
#     print i

# 指定字段排序
# for i in my_set.find().sort([('age', 1)]):
#     print i

# 查询指定条数limit, 跳过指定条数skip
# 以下表示跳过两条后查询出两条信息
# for i in my_set.find().skip(2).limit(2):
#     print i

# in操作查询(包含查询)
# for i in my_set.find({'age': {'$in': (18, 26)}}):
#     print i

# or操作查询(或查询)
# for i in my_set.find({'$or': [{'age': 23}, {'age': 26}]}):
#     print i

# all操作查询(查找满足全部条件的数据)
# 先插入数据
# dic = {'name': 'lisi', 'age': 16, 'li': [1, 2, 3]}
# dic2 = {'name': 'zhangsan', 'age': 18, 'li': [1, 2, 3, 4, 5, 6]}
# my_set.insert(dic)
# my_set.insert(dic2)

# for i in my_set.find({'li': {'$all': [1, 2, 3, 4]}}):
#     print i

# push插入
# my_set.update({'name': 'lisi'}, {'$push': {'li': 4}})
# for i in my_set.find({'name': 'lisi'}):
#     print i

# pushall插入
# my_set.update({'name': 'lisi'}, {'$pushAll': {'li': [4, 5]}})
# for i in my_set.find({'name': 'lisi'}):
#     print i

# pop移除最后一个元素
# my_set.update({'name': 'lisi'}, {'$pop': {'li': 1}})
# for i in my_set.find({'name': 'lisi'}):
#     print i

# pull按值移除
# my_set.update({'name': 'lisi'}, {'$pull': {'li': [4, 5]}})
# for i in my_set.find({'name': 'lisi'}):
#     print i

# pullAll移除全部符合条件的
# my_set.update({'name': 'lisi'}, {'$pullAll': {'li': [4, 4]}})
# for i in my_set.find({'name': 'lisi'}):
#     print i

# 多级目录元素操作
# 先插入一条数据
# dic = {
#     'name': 'zhangsan',
#     'age': 18,
#     'contact': {
#         'email': '[email protected]',
#         'iphone': '110112114119'
#     }
# }
# my_set.insert(dic)

# 多级目录用.连接
# for i in my_set.find({'contact.iphone': '110112114119'}):
#     print i
#
# print my_set.find_one({'contact.iphone': '110112114119'})
#
# res = my_set.find_one({'contact.iphone': '110112114119'})
# print res['contact']['iphone']  # python方式取值

# 对数据进行索引操作
# 插入数据
# dic = {"name": "lisi",
#        "age": 18,
#        "contact": [{
#            "email": "[email protected]",
#            "iphone": "111"},
#            {
#            "email": "[email protected]",
#            "iphone": "222"
#            }]
#        }
# my_set.insert(dic)
# 通过索引查找数据
res = my_set.find_one({'contact.1.iphone': '222'})
print res
print res['contact'][1]['email']
# 修改
result = my_set.update(
    {'contact.1.iphone': '222'},
    {'$set': {'contact.1.email': '[email protected]'}}
)

注意：以上内容是个人使用的随手记录，就是介绍了下简单的使用

欢迎大家来吐槽，准备好瓜子饮料矿泉水，开整!!!

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搞笑一则：能动手尽量别吵吵

MongoDB简单使用demo

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