python - 使用 mysql.connector for python 连接数据库时出错

Question

我是 python 的新手，从实现小程序开始，现在尝试连接数据库。我安装了 python 3.4 和 mysql.connector 2.0.4。下面给出的代码是我用来连接数据库的代码

#!"C:\python34\python.exe"
import sys
import mysql.connector
print("Content-Type: text/html;charset=utf-8")
print()
conn = mysql.connector.connect(host='localhost:8051',
                                       database='test',
                                       user='root',
                                       password='tiger')

if conn.is_connected():
    print('Connected to MySQL database')

但我收到如下所示的错误。不明白为什么会出现这个错误，因为安装环境错误或其他原因请建议

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\mysql\connector\network.py", line 448, in open_connection
    socket.SOL_TCP)
  File "C:\Python34\lib\socket.py", line 533, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 11004] getaddrinfo failed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<pyshell#8>", line 2, in <module>
    password='tiger',database='test')
  File "C:\Python34\lib\site-packages\mysql\connector\__init__.py", line 179, in connect
    return MySQLConnection(*args, **kwargs)
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 95, in __init__
    self.connect(**kwargs)
  File "C:\Python34\lib\site-packages\mysql\connector\abstracts.py", line 719, in connect
    self._open_connection()
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 209, in _open_connection
    self._socket.open_connection()
  File "C:\Python34\lib\site-packages\mysql\connector\network.py", line 464, in open_connection
    errno=2003, values=(self.get_address(), _strioerror(err)))
mysql.connector.errors.InterfaceError: 2003: Can't connect to MySQL server on 'localhost:8051:3306' (11004 getaddrinfo failed)

Answer 1

错误信息很清楚:

 Can't connect to MySQL server on 'localhost:8051:3306'

看到双端口定义了吗？

host='localhost:8051'

最有可能是

host='localhost', port='8051'