作者： wyh草样

出处：https:///wyh0923/p/14047466.html

1、数据库配置类 MongoDBConn.py

#encoding=utf-8'''Mongo Conn连接类'''import pymongoclass DBConn: conn = None servers = "mongodb://localhost:27017" def connect(self): self.conn = pymongo.Connection(self.servers) def close(self): return self.conn.disconnect() def getConn(self): return self.conn

2、ngoDemo.py 类

#encoding=utf-8'''Mongo操作DemoDone:'''import MongoDBConndbconn = MongoDBConn.DBConn()conn = Nonelifeba_users = Nonedef process(): #建立连接 dbconn.connect() global conn conn = dbconn.getConn() #列出server_info信息 print conn.server_info() #列出全部数据库 databases = conn.database_names() print databases #删除库和表 dropTable() #添加数据库lifeba及表(collections)users createTable() #插入数据 insertDatas() #更新数据 updateData() #查询数据 queryData() #删除数据 deleteData() #释放连接 dbconn.close()def insertDatas(): datas=[{"name":"steven1","realname":"测试1","age":25}, {"name":"steven2","realname":"测试2","age":26}, {"name":"steven1","realname":"测试3","age":23}] lifeba_users.insert(datas)def updateData(): '''只修改最后一条匹配到的数据 第3个参数设置为True,没找到该数据就添加一条 第4个参数设置为True,有多条记录就不更新 ''' lifeba_users.update({'name':'steven1'},{'$set':{'realname':'测试1修改'}}, False,False)def deleteData(): lifeba_users.remove({'name':'steven1'})def queryData(): #查询全部数据 rows = lifeba_users.find() printResult(rows) #查询一个数据 print lifeba_users.find_one() #带条件查询 printResult(lifeba_users.find({'name':'steven2'})) printResult(lifeba_users.find({'name':{'$gt':25}}))def createTable(): '''创建库和表''' global lifeba_users lifeba_users = conn.lifeba.usersdef dropTable(): '''删除表''' global conn conn.drop_database("lifeba")def printResult(rows): for row in rows: for key in row.keys():#遍历字典 print row[key], #加, 不换行打印 print ''if __name__ == '__main__': process()

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