python3使用pymysql远程连接mysql失败

布满荆棘的人生 2022-02-05 01:27 566阅读 0赞

在本地用pymysql连接远程服务器时，出现了一个错误。

`(1130, "Host '58.20.30.102' is not allowed to connect to this MySQL server")`

说的是主机不允许远程连接MySQL  
原因是**Mysql配置了不支持远程连接**。

参考https://blog.csdn.net/h985161183/article/details/82218710

import pymysql
    
    db = pymysql.connect("134.175.58.163","root","nlp123.","test" )
    
    db2 = pymysql.connect(host='134.175.58.163', user='root', password='nlp123.', port=3306)

记录下操作过程

[root@VM_0_14_centos test]# mysql -u root -p
    Enter password: 
    Welcome to the MySQL monitor.  Commands end with ; or \g.
    Your MySQL connection id is 54
    Server version: 5.7.26 MySQL Community Server (GPL)
    
    Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
    
    Oracle is a registered trademark of Oracle Corporation and/or its
    affiliates. Other names may be trademarks of their respective
    owners.
    
    Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
    
    mysql> use RUNOOB
    Reading table information for completion of table and column names
    You can turn off this feature to get a quicker startup with -A
    
    Database changed
    mysql> select host from user where user='root';
    ERROR 1146 (42S02): Table 'RUNOOB.user' doesn't exist mysql> use mysql; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> select host from user where user='root'; +-----------+ | host | +-----------+ | localhost | +-----------+ 1 row in set (0.00 sec) mysql> update user set host = '%' where user ='root'; Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> flush privilegs; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'privilegs' at line 1
    mysql> flush privileges;
    Query OK, 0 rows affected (0.01 sec)
    
    mysql>

连接成功  
![在这里插入图片描述][20190504105428988.png]

[20190504105428988.png]: /images/20220205/c321b9315cd04d1fb826187c00262cca.png