python MysqlDb模块安装及其使用详解

pip install python-mysql

#!/usr/bin/python # -*- coding: UTF-8 -*-  import MySQLdb  # 连接数据库      连接地址  账号  密码   数据库   数据库编码  db = MySQLdb.connect("localhost", "root", "123456", "test" , charset="utf8")  # 使用cursor()方法获取操作游标 cursor = db.cursor()  # 使用execute方法执行SQL语句 cursor.execute("SELECT VERSION()")  # 使用 fetchone() 方法获取一条数据库。 data = cursor.fetchone()  print "Database version : %s " % data  # 关闭数据库连接 db.close() 

#!/usr/bin/python # coding=utf-8 import MySQLdb import os, sys import json class MysqlDb(object):    def __init__(self):     self.host = "127.0.0.1"    @staticmethod   def get_connect():     db = MySQLdb.connect(self.host , "mail_report", "mail_report", "mailawst", charset="utf8")     return db    def get_mysql_info(self,start_time,end_time):     tmp = []     db = self.get_connect()     sql = 'select send_time,mail_id,mail_addr,server_domain,server_ip,mail_status from real_mail_log where send_time > "%s" and send_time < "%s" limit 10;' % (start_time,end_time)     cursor = db.cursor()     cursor.execute(sql)     values = cursor.fetchall()     for i in values:       data = {}       data["send_time"] = str(i[0])       data["mail_id"] = str(i[1])       data["mail_addr"]= str(i[2])       data["server_domain"] = str(i[3])       data["server_ip"] = str(i[4])       data["mail_status"]= str(i[5].encode('utf8'))         tmp.append(data)     data = json.dumps(tmp,ensure_ascii=False)     db.close()     return data  def main():   u = MysqlDb()   print u.get_mysql_info('2017-05-01 00:00:02','2017-05-01 00:50:03')  if __name__ == '__main__':   main() 

#!/usr/bin/python # -*- coding: UTF-8 -*-  import MySQLdb  # 打开数据库连接 db = MySQLdb.connect("localhost", "root", "123456", "test")  # 使用cursor()方法获取操作游标 cursor = db.cursor()  # SQL插入语句 ins_sql = """INSERT INTO EMPLOYEE(FIRST_NAME,      LAST_NAME, AGE, SEX, INCOME)      VALUES ('yu', 'jie', 20, 'M', 8000)"""  ins_sql1 = 'insert into employee(first_name, last_name, age, sex, income) values (%s, %s, %s, %s, %s)'  # SQL查询语句 sel_sql = 'select * from employee where first_name = %s'  # SQL更新语句 upd_sql = 'update employee set age = %s where sex = %s'  # SQL删除语句 del_sql = 'delete from employee where first_name = %s' try:   # 执行sql语句   # insert   cursor.execute(ins_sql)   cursor.execute(ins_sql1, ('xu', 'f', 20, 'M', 8000))   # select   cursor.execute(sel_sql, ('yu',))   values = cursor.fetchall()   print values   # update   cursor.execute(upd_sql, (24, 'M',))   # delete   cursor.execute(del_sql, ('xu',))    # 提交到数据库执行   db.commit() except:   # 发生错误时回滚   db.rollback()  # 关闭数据库连接 db.close()