python下的MySQLdb使用

1. python2 使用MySQLdb

# coding:utf-8
import sys
import MySQLdb
from functools import reduce
import datetime

config = {
        'host': '**.100.**.1**',
        'port': 3306,
        'user': 'root',
        'passwd': '123456',
        'db': 'bot',
        'charset': 'utf8'
    }

    conn = MySQLdb.connect(**config)

    cursor = conn.cursor()
    cursor.execute('select uuid from tb where state = 0')
    result_values = cursor.fetchall()
    try:

        for line in result_values:
            uuid = line[0]
            # 查询机器人反馈的话术
            sql_robot_words = "select b.robot_words,b.corpus_score from tb_mm_record a LEFT JOIN mm_voice b " \
                              "on a.voice_id = b.id where uuid = '%s'" % uuid
            cursor.execute(sql_robot_words)
            values_robot_words = cursor.fetchall()

            b = list(word[1] for word in values_robot_words if word[0] != None)

            if len(b):
                customer_score = reduce(lambda x, y: x + y, b)
            else:
                customer_score = len(b)
            state = 1
            sql_update = "UPDATE mm_cdr SET customer_score = '%d',state = '%s'" % (customer_score, state) + "WHERE uuid = '%s'" % uuid
            cursor.execute(sql_update)
            conn.commit()
    except:
        # Rollback in case there is any error
        conn.rollback()
    # 关闭数据库连接
    cursor.close()
    conn.close()

2. python2 使用 mySQL

python 更新插入mySQL数据库

3. python3 使用pymysql

3.1 首先测试数据库的连接test.py

# coding:utf-8
import pymysql

def connectdb():
    print('连接到mysql服务器...')
    db = pymysql.connect(
        host="localhost",
        user="op",
        passwd="123456",
        port=3306,
        db="voic",
        charset='utf8',
        cursorclass=pymysql.cursors.DictCursor)
    print('连接上了!')
    return db

if __name__ == '__main__':
    connectdb()

输出：

连接到mysql服务器...
连接上了!

3.2 配置数据库信息

配置文件mysql_configurate

{"passwd": "123456", "charset": "utf8mb4", "port": 3306, "host": "27.140.215.133", "user": "op", "db": "voic"}

py 文件 mysql_configurate.py

# coding:utf-8
from functools import reduce
import datetime
import pymysql
from threading import Timer



def callValueScore():
    print('开始吧')

    f_read = open('.\mysql_configurate', 'r')
    data = f_read.readline()
    print(data, type(data))
    d = eval(data)
    config = {
        'host': d['host'],
        'port': d['port'],
        'user': d['user'],
        'passwd': d['passwd'],
        'db': d['db'],
        'charset': d['charset']
    }

    conn = pymysql.connect(**config)

    cursor = conn.cursor()
    cursor.execute('select uuid from tb_cdr where state = 1')
    result_values = cursor.fetchall()
    print(len(result_values))

    try:

        for line in result_values:
            break
            uuid = line[0]
            # 查询机器人反馈的话术
            sql_robot_words = "select b.robot_words,b.corpus_score from tb_reply_record a LEFT JOIN tb_voice b " \
                              "on a.voice_id = b.id where uuid = '%s'" % uuid
            cursor.execute(sql_robot_words)
            values_robot_words = cursor.fetchall()

            b = list(word[1] for word in values_robot_words if word[0] != None)

            if len(b):
                customer_score = reduce(lambda x, y: x + y, b)
            else:
                customer_score = len(b)

            print(customer_score)
            state = 1
            # sql_update = "UPDATE tb_cdr SET customer_score = '%d',state = '%s'" % (customer_score, state) + "WHERE uuid = '%s'" % uuid
            # cursor.execute(sql_update)

            conn.commit()
    except:
        # Rollback in case there is any error
        conn.rollback()
    # 关闭数据库连接
    cursor.close()
    conn.close()

3.3 写入数据库信息

# coding:utf-8
import json

def testConfigurate():
    data = {
        'host': '27.110.215.127',
        'port': 3306,
        'user': 'ops',
        'passwd': '123456',
        'db': 'voic',
        'charset': 'utf8mb4'
    }
    f = open('.\mysql_configurate', 'w')
    data_str = json.dumps(data)
    print(data_str)
    print(type(data_str))
    d = json.loads(data_str)
    print(d['db'],type(d['db']))
    print(d['port'], type(d['port']))
    f.write(data_str)

参考链接：
python 更新插入mySQL数据库
安装
Python连接MySQL数据库
python下的MySQLdb使用