pymysql：Mysql拒绝从远程访问的解决办法

 

pymysql连接数据库

# 导入pymysql模块
import pymysql

# 连接database
cOnn= pymysql.connect(
    host="192.168.1.1",
    user="root",
    password="password",
    db ="test",
    charset ="utf8")

# 得到一个可以执行SQL语句的光标对象
cursor = conn.cursor()  # 执行完毕返回的结果集默认以元组显示
# 得到一个可以执行SQL语句并且将结果作为字典返回的游标
# cursor = conn.cursor(cursor=pymysql.cursors.DictCursor)

# 定义要执行的SQL语句
sql = "select * from account"

# 执行SQL语句
cursor.execute(sql)

# 关闭光标对象
cursor.close()

# 关闭数据库连接
conn.close()

　　

报错内容

Traceback (most recent call last):
  File "C:/Pycham/Mysql/test.py", line 10, in 
    charset ="utf8")
  File "C:\Pycham\venv\lib\site-packages\pymysql\__init__.py", line 94, in Connect
    return Connection(*args, **kwargs)
  File "C:\Pycham\venv\lib\site-packages\pymysql\connections.py", line 325, in __init__
    self.connect()
  File "C:\Pycham\venv\lib\site-packages\pymysql\connections.py", line 598, in connect
    self._get_server_information()
  File "C:\Pycham\venv\lib\site-packages\pymysql\connections.py", line 975, in _get_server_information
    packet = self._read_packet()
  File "C:\Pycham\venv\lib\site-packages\pymysql\connections.py", line 684, in _read_packet
    packet.check_error()
  File "C:\Pycham\venv\lib\site-packages\pymysql\protocol.py", line 220, in check_error
    err.raise_mysql_exception(self._data)
  File "C:\Pycham\venv\lib\site-packages\pymysql\err.py", line 109, in raise_mysql_exception
    raise errorclass(errno, errval)
pymysql.err.InternalError: (1130, "Host '219.139.78.81' is not allowed to connect to this MariaDB server")

　　

 

解决办法

Mysql必须开启远程访问权限 才允许远程连接。 

root帐户是无法远程登陆的，只可以本地登陆。

　　

 

1.使用mysql数据库

use mysql;

2.添加用户允许从任何主机连接到mysql服务器 

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;

允许任何IP地址（上面的 % 就是这个意思）的电脑使用root用户 和密码（password）来访问这个MySQL Server 。

如果你想允许用户root从ip为192.168.1.1的主机连接到mysql服务器，并使用password作为密码

GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.1' IDENTIFIED BY 'password' WITH GRANT OPTION;
FLUSH   PRIVILEGES;

如果你想允许用户root从ip为192.168.1.1的主机连接到mysql服务器的dk数据库，并使用password作为密码

GRANT ALL PRIVILEGES ON dk.* TO 'root'@'192.168.1.1' IDENTIFIED BY 'password' WITH GRANT OPTION;
FLUSH   PRIVILEGES;

3.及时生效

FLUSH PRIVILEGES

4.测试

# 导入pymysql模块
import pymysql

# 连接database
conn = pymysql.connect(
    host="192.168.1.1",
    user="root",
    password="password",
    db ="test",
    charset ="utf8")

# 得到一个可以执行SQL语句的光标对象
cursor = conn.cursor()  # 执行完毕返回的结果集默认以元组显示
# 得到一个可以执行SQL语句并且将结果作为字典返回的游标
# cursor = conn.cursor(cursor=pymysql.cursors.DictCursor)

# 定义要执行的SQL语句
sql = "select version()"

# 执行SQL语句
cursor.execute(sql)

# #使用fetchone()方法获取一条数据
data = cursor.fetchone()
print("Mysql version : %s"%data)


# 关闭光标对象
cursor.close()

# 关闭数据库连接
conn.close()

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