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python Mysql connector封装

2018-05-17 08:00 星期四 所属: Python教程 浏览:355

python">#!/usr/bin/env python
#-*- coding:utf-8-*-

from mysql import connector

def connect():
    config={
        'host':'localhost',#默认127.0.0.1  
        'user':'root',  
        'password':'1111111',  
        'port':3306 ,#默认即为3306  
        'database':'test',  
        'charset':'utf8'#默认即为utf8  
    }
    try:  
        return connector.connect(**config)
    except connector.Error as e:
        print('connect fail! {}'.format(e))

def execSql(cur, sql, data, isCommit = False):
    cur.executemany(sql, data) if isinstance(data, list) else cur.execute(sql, data)
    if isCommit:
        conn.commit()

def insert(conn, tableName, datas):
    sql = 'insert into `{0}` ({1}) values ({2})'
    keys = []
    placeHolders = []

    data = datas
    if isinstance(datas, list):
        data = datas[0]

    for key in data:
        keys.append(key)
        placeHolders.append('%('+key+')s')
    sql = sql.format(tableName, ','.join(keys), ','.join(placeHolders))

    id = -1
    try:
        cur = conn.cursor()
        execSql(cur, sql, datas)
        if not isinstance(datas, list):
            id = cur.lastrowid #返回主键
        conn.commit()
    except connector.Error as e:
        raise e
    finally:
        cur.close()
    return id

def query(conn, sql, datas):
    try:
        cur = conn.cursor()
        cur.execute(sql, datas)
    except connector.Error as e:
        raise e
    return cur

if __name__ == '__main__':
    testDict = {
        'aa': 1,
        'bb': 'aaa',
        'cc': 'bbb',
        'dd': 'ccc'
    }
    conn = connect()
    print insert(conn, 'test_table', brandDict)

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