Peewee - 无法连接到主机上的 MySQL 服务器

Question

我正在使用 peewee ORM 开发基于 Flask 的 python 应用程序。 我最初是连接到本地存储在我的机器上的数据库，现在我正在尝试过渡到远程连接到数据库。 我已经通过服务器的 cpanel 部分在 phpmyadmin 中设置了数据库。

问题

我已经设置了我的 IP 地址以便能够远程访问我的数据库，但是当我尝试连接到数据库时出现以下错误：

Traceback (most recent call last):
  File "app.py", line 294, in <module>
    models.initialize()
  File "/Users/wyssuser/Desktop/dscraper/models.py", line 145, in initialize
    DATABASE.connect()
  File "/Library/Python/2.7/site-packages/peewee.py", line 2767, in connect
    self.__local.closed = False
  File "/Library/Python/2.7/site-packages/peewee.py", line 2688, in __exit__
    reraise(new_type, new_type(*exc_value.args), traceback)
  File "/Library/Python/2.7/site-packages/peewee.py", line 2766, in connect
    **self.connect_kwargs)
  File "/Library/Python/2.7/site-packages/peewee.py", line 3209, in _connect
    return mysql.connect(db=database, **conn_kwargs)
  File "/Library/Python/2.7/site-packages/pymysql/__init__.py", line 88, in Connect
    return Connection(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/pymysql/connections.py", line 644, in __init__
    self._connect()
  File "/Library/Python/2.7/site-packages/pymysql/connections.py", line 869, in _connect
    raise exc
peewee.OperationalError: (2003, "Can't connect to MySQL server on '142.157.25.22' ([Errno 61] Connection refused)")

这是我的代码中引用数据库连接的部分：

应用程序

if __name__ == '__main__':
  models.initialize()
  app.run(debug=DEBUG, port=PORT, host=HOST)

配置文件

DATABASE = {
  'db': 'my_dbname',
  'host': '142.157.25.22',
  'port': 3306,
  'user': 'my_username',
  'passwd': 'my_pswd',
}

模型.py

from peewee import *
import config

DATABASE = MySQLDatabase(config.DATABASE['db'], host=config.DATABASE['host'], port=config.DATABASE['port'], user=config.DATABASE['user'], passwd=config.DATABASE['passwd'])

...all of my models related code

def initialize():
  print 'starting db connection'
  DATABASE.connect()
  print 'connected'
  DATABASE.create_tables([Batch, Company, User, Post],safe=True)
  DATABASE.close()

我也试过连接到“localhost”作为主机，但这在这里似乎不起作用，我应该连接到不同的主机吗？

Answer 1

解决方案是错误的默认端口：peewee doc 中的示例是

# Connect to a MySQL database on network.
mysql_db = MySQLDatabase('my_app', user='app', password='db_password',
                         host='10.1.0.8', port=3316)

但默认端口是 3306