python 操作 mysql

Posted 2022-12-19 车斗

python 操作 mysql

• 安装

我的环境是 anaconda python 3.8.5。首先安装 mysql_connector_python。试了几种方法都不灵。直接下载：
mysql_connector_python-8.0.30-py2.py3-none-any.whl

$ wget https://files.pythonhosted.org/packages/94/42/5f1c4974d346ff015af67a5b1b1818487caaee60659aefd7263af3e2e52a/mysql_connector_python-8.0.30-py2.py3-none-any.whl

然后使用命令：

$ pip install mysql_connector_python-8.0.30-py2.py3-none-any.whl

需要联网自动下载一些依赖。安装完成。

• 使用

Python 3.8.5 (default, Sep ...)
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import mysql.connector
>>> conn = mysql.connector.connect(host="mysql db ip地址", user="root", password="****", database="workflow_workflow1", port=3316, charset=1)
>>> cmd = conn.cursor()
>>> rs = cmd.fetchall()
>>> print(rs)
>>> conn.close()

如果不指定 charset=1 或者 指定 charset=‘utf8’ 都会报错误：
raise ProgrammingError(f"Character set ‘charset’ unsupported")

• 总结
  简单用用没问题。复杂的业务用 java 吧！

• 参考

  https://dev.mysql.com/doc/connector-python/en/connector-python-tutorial-cursorbuffered.html

  https://blog.csdn.net/weixin_42361635/article/details/115889694