安装mysql-connector-python的详细步骤-创新互联
下文给大家带来安装mysql-connector-python的详细步骤有关内容，相信大家一定看过类似的文章。我们给大家带来的有何不同呢？一起来看看正文部分吧，相信看完安装mysql-connector-python的详细步骤你一定会有所收获。
什么是MySQL Connector/Python？
MySQL Connector/Python enables Python programs to access MySQL databases, using an API that is compliant with the Python Database API Specification v2.0 (PEP 249). It is written in pure Python and does not have any dependencies except for the Python Standard Library.
简单来说就是Python用来连接并访问MySQL的第三方库；
安装mysql-connector-python
sht-sgmhadoopcm-01.telenav.cn:mysqladmin:/usr/local/virtualenv/test1_env:>source test1_env/bin/activate
(test1_env) sht-sgmhadoopcm-01.telenav.cn:mysqladmin:/usr/local/virtualenv/test1_env:>pip install mysql-connector-python
(test1_env) [root@sht-sgmhadoopcm-01 software]# pip list|grep mysql
mysql-connector-python 8.0.15
检查安装是否成功
(test1_env) [root@sht-sgmhadoopcm-01 software]# ls -ltrh test1_env/lib/python2.7/site-packages/mysql_connector_python-8.0.15.dist-info/
total 124K
-rw-r--r-- 1 root root 105 Feb 13 00:04 WHEEL
-rw-r--r-- 1 root root 1.5K Feb 13 00:04 METADATA
-rw-r--r-- 1 root root 94K Feb 13 00:04 LICENSE.txt
-rw-r--r-- 1 root root 40 Feb 13 00:04 top_level.txt
-rw-r--r-- 1 root root 4 Feb 13 00:04 INSTALLER
-rw-r--r-- 1 root root 8.4K Feb 13 00:04 RECORD
>>> from distutils.sysconfig import get_python_lib
>>> print get_python_lib()
/opt/software/test1_env/lib/python2.7/site-packages
连接MySQL
方法1: connect()
import mysql.connector cnx = mysql.connector.connect(user='root', password='agm43gadsg', host='172.16.101.54',port='3306', database='testdb') cnx.close()
方法2：MySQLConnection()
from mysql.connector import (connection) cnx = connection.MySQLConnection(user='root', password='agm43gadsg', host='172.16.101.54',port='3306', database='testdb') cnx.close()
方法3：配置文件
import mysql.connector
config = {
'user': 'root',
'password': 'agm43gadsg',
'host': '172.16.101.54',
'port': '3306',
'database': 'testdb'
}
cnx = mysql.connector.connect(**config)
cnx.close()创建表
from __future__ import print_function
import mysql.connector
from mysql.connector import errorcode
DB_NAME = 'testdb2'
TABLES = {}
TABLES['employees'] = (
"CREATE TABLE `employees` ("
" `emp_no` int(11) NOT NULL AUTO_INCREMENT,"
" `birth_date` date NOT NULL,"
" `first_name` varchar(14) NOT NULL,"
" `last_name` varchar(16) NOT NULL,"
" `gender` enum('M','F') NOT NULL,"
" `hire_date` date NOT NULL,"
" PRIMARY KEY (`emp_no`)"
") ENGINE=InnoDB")
TABLES['departments'] = (
"CREATE TABLE `departments` ("
" `dept_no` char(4) NOT NULL,"
" `dept_name` varchar(40) NOT NULL,"
" PRIMARY KEY (`dept_no`), UNIQUE KEY `dept_name` (`dept_name`)"
") ENGINE=InnoDB")
TABLES['salaries'] = (
"CREATE TABLE `salaries` ("
" `emp_no` int(11) NOT NULL,"
" `salary` int(11) NOT NULL,"
" `from_date` date NOT NULL,"
" `to_date` date NOT NULL,"
" PRIMARY KEY (`emp_no`,`from_date`), KEY `emp_no` (`emp_no`),"
" CONSTRAINT `salaries_ibfk_1` FOREIGN KEY (`emp_no`) "
" REFERENCES `employees` (`emp_no`) ON DELETE CASCADE"
") ENGINE=InnoDB")
TABLES['dept_emp'] = (
"CREATE TABLE `dept_emp` ("
" `emp_no` int(11) NOT NULL,"
" `dept_no` char(4) NOT NULL,"
" `from_date` date NOT NULL,"
" `to_date` date NOT NULL,"
" PRIMARY KEY (`emp_no`,`dept_no`), KEY `emp_no` (`emp_no`),"
" KEY `dept_no` (`dept_no`),"
" CONSTRAINT `dept_emp_ibfk_1` FOREIGN KEY (`emp_no`) "
" REFERENCES `employees` (`emp_no`) ON DELETE CASCADE,"
" CONSTRAINT `dept_emp_ibfk_2` FOREIGN KEY (`dept_no`) "
" REFERENCES `departments` (`dept_no`) ON DELETE CASCADE"
") ENGINE=InnoDB")
TABLES['dept_manager'] = (
" CREATE TABLE `dept_manager` ("
" `dept_no` char(4) NOT NULL,"
" `emp_no` int(11) NOT NULL,"
" `from_date` date NOT NULL,"
" `to_date` date NOT NULL,"
" PRIMARY KEY (`emp_no`,`dept_no`),"
" KEY `emp_no` (`emp_no`),"
" KEY `dept_no` (`dept_no`),"
" CONSTRAINT `dept_manager_ibfk_1` FOREIGN KEY (`emp_no`) "
" REFERENCES `employees` (`emp_no`) ON DELETE CASCADE,"
" CONSTRAINT `dept_manager_ibfk_2` FOREIGN KEY (`dept_no`) "
" REFERENCES `departments` (`dept_no`) ON DELETE CASCADE"
") ENGINE=InnoDB")
TABLES['titles'] = (
"CREATE TABLE `titles` ("
" `emp_no` int(11) NOT NULL,"
" `title` varchar(50) NOT NULL,"
" `from_date` date NOT NULL,"
" `to_date` date DEFAULT NULL,"
" PRIMARY KEY (`emp_no`,`title`,`from_date`), KEY `emp_no` (`emp_no`),"
" CONSTRAINT `titles_ibfk_1` FOREIGN KEY (`emp_no`)"
" REFERENCES `employees` (`emp_no`) ON DELETE CASCADE"
") ENGINE=InnoDB")
cnx = mysql.connector.connect(user='root', password='agm43gadsg', host='172.16.101.54',port='3306', database='testdb')
cursor = cnx.cursor()
def create_database(cursor):
try:
cursor.execute("CREATE DATABASE {} DEFAULT CHARACTER SET 'utf8'".format(DB_NAME))
except mysql.connector.Error as err:
print("Failed creating database: {}".format(err))
exit(1)
try:
cursor.execute("USE {}".format(DB_NAME))
except mysql.connector.Error as err:
print("Database {} does not exists.".format(DB_NAME))
if err.errno == errorcode.ER_BAD_DB_ERROR:
create_database(cursor)
print("Database {} created successfully.".format(DB_NAME))
cnx.database = DB_NAME
else:
print(err)
exit(1)
for table_name in TABLES:
table_description = TABLES[table_name]
try:
print("Creating table {}: ".format(table_name), end='')
cursor.execute(table_description)
except mysql.connector.Error as err:
if err.errno == errorcode.ER_TABLE_EXISTS_ERROR:
print("already exists.")
else:
print(err.msg)
else:
print("OK")
cursor.close()
cnx.close()插入数据
from __future__ import print_function
from datetime import date, datetime, timedelta
import mysql.connector
cnx = mysql.connector.connect(user='root', password='agm43gadsg', host='172.16.101.54',port='3306', database='testdb')
cursor = cnx.cursor()
tomorrow = datetime.now().date() + timedelta(days=1)
#下面是两种格式的insert,第一种data_employee要写成tuple类型，第二种data_salary要写成字典类型
add_employee = ("INSERT INTO employees "
"(first_name, last_name, hire_date, gender, birth_date) "
"VALUES (%s, %s, %s, %s, %s)")
add_salary = ("INSERT INTO salaries "
"(emp_no, salary, from_date, to_date) "
"VALUES (%(emp_no)s, %(salary)s, %(from_date)s, %(to_date)s)")
data_employee = ('Geert', 'Vanderkelen', tomorrow, 'M', date(1977, 6, 14))
cursor.execute(add_employee, data_employee)
emp_no = cursor.lastrowid #打印最后一次插入emp_no列值，作为salaries表的emp_no列值,要求employees表的emp_no必须是自增主键才行，
data_salary = {
'emp_no': emp_no,
'salary': 50000,
'from_date': tomorrow,
'to_date': date(9999, 1, 1),
}
cursor.execute(add_salary, data_salary)
cnx.commit()
cursor.close()
cnx.close()查询数据
import datetime
import mysql.connector
cnx = mysql.connector.connect(user='root', password='agm43gadsg', host='172.16.101.54',port='3306', database='testdb')
cursor = cnx.cursor()
query = ("SELECT first_name, last_name, hire_date FROM employees "
"WHERE hire_date BETWEEN %s AND %s")
hire_start = datetime.date(1999, 1, 1)
hire_end = datetime.date(1999, 12, 31)
cursor.execute(query, (hire_start, hire_end))
for (first_name, last_name, hire_date) in cursor:
print("{}, {} was hired on {:%d %b %Y}".format(last_name, first_name, hire_date))
cursor.close()
cnx.close()MySQL Connector/Python
对于上文关于安装mysql-connector-python的详细步骤，大家觉得是自己想要的吗？如果想要了解更多相关，可以继续关注我们的行业资讯板块。
另外有需要云服务器可以了解下创新互联cdcxhl.cn，海内外云服务器15元起步，三天无理由+7*72小时售后在线，公司持有idc许可证，提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案，具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势，专为企业上云打造定制，能够满足用户丰富、多元化的应用场景需求。
网页名称：安装mysql-connector-python的详细步骤-创新互联
当前地址：http://6mz.cn/article/hcged.html