python3.4用函数操作mysql5.7数据库

Python  /  管理员 发布于 7年前   327

本文实例为大家分享了python3.4函数操作mysql数据库的具体代码，供大家参考，具体内容如下

#!/usr/bin/env python# -*- coding:utf-8 -*-# __author__ = "blzhu""""python studyDate：2017"""# -*- coding: utf-8 -*-__author__ = '[email protected]'import loggingimport pymysqlclass MySQLCommand(object): def __init__(self, host, port, user, passwd, db, table, charset): self.host = host self.port = port self.user = user self.password = passwd self.db = db self.table = table self.charset = charset def connectMysql(self): try: self.conn = pymysql.connect(host=self.host, port=self.port, user=self.user, passwd=self.password,   db=self.db, charset=self.charset) self.cursor = self.conn.cursor() print('connect ' + self.table + ' correctly!') except: print('connect mysql error.') def queryMysql(self): sql = "SELECT * FROM " + self.table try: print("query Mysql:") self.cursor.execute(sql) #row = self.cursor.fetchone() for d in self.cursor: print(str(d[0]), str(d[1]), str(d[2])) # print(row) except: print(sql + ' execute failed.') def insertMysql(self, id, name, sex): sql = "INSERT INTO " + self.table + " VALUES(" + id + "," + "'" + name + "'," + "'" + sex + "')" try: print("insert Mysql:") self.cursor.execute(sql) print(sql) except: print("insert failed.") def updateMysqlSN(self, name, sex): sql = "UPDATE " + self.table + " SET sex='" + sex + "'" + " WHERE name='" + name + "'" print("update sn:" + sql) try: self.cursor.execute(sql) self.conn.commit() except: self.conn.rollback() def deleteMysql(self, id): # 删除 sql = "DELETE FROM %s WHERE id='%s'" % (self.table,id) #"delete from student where zid='%s'" % (id) try: self.cursor.execute(sql) print(sql) self.conn.commit() print("delete the " + id + "th row successfully!") except: print("delete failed!") self.conn.rollback() def closeMysql(self): self.conn.commit() # 不执行此句，所作的操作不会写入到数据库中 self.cursor.close() self.conn.close()if __name__ == '__main__': zblmysql = MySQLCommand(host='localhost', user='root', passwd='root', db='zbltest1', port=3306, table='student2',  charset='utf8') zblmysql.connectMysql() zblmysql.queryMysql() zblmysql.insertMysql('5', 'zbl5', 'man') zblmysql.queryMysql() zblmysql.deleteMysql(id=2) zblmysql.queryMysql() zblmysql.updateMysqlSN(name='zbl5',sex='woman') zblmysql.queryMysql() zblmysql.closeMysql()

参考：python3操作mysql数据库的方法

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