Ubuntu下MySQL中文乱码的问题解决

发现问题

最近一段时间学习Django，在进行与MySQL数据联合使用的插入数据的时候遇到下边的问题：

/usr/local/lib/python2.7/dist-packages/Django-1.11.dev20170117002028-py2.7.egg/django/db/backends/mysql/base.py:109: Warning: Incorrect string value: '\xE6\x88\x90\xE5\x8A\x9F...' for column 'json' at row 1 return self.cursor.execute(query, args)[07/Feb/2017 12:15:21] "GET /index/ HTTP/1.1" 200 250

查看数据库编码

mysql> show create database bangjob;+----------+--------------------------------------------------------------------+| Database | Create Database    |+----------+--------------------------------------------------------------------+| bangjob | CREATE DATABASE `bangjob` /*!40100 DEFAULT CHARACTER SET latin1 */ |+----------+--------------------------------------------------------------------+1 row in set (0.00 sec)

mysql> set character_set_database=utf8;Query OK, 0 rows affected (0.00 sec)mysql> set character_set_server=utf8;Query OK, 0 rows affected (0.00 sec)

mysql> show variables like'%char%';+--------------------------+----------------------------+| Variable_name | Value  |+--------------------------+----------------------------+| character_set_client | utf8  || character_set_connection | utf8  || character_set_database | utf8  || character_set_filesystem | binary  || character_set_results | utf8  || character_set_server | utf8  || character_set_system | utf8  || character_sets_dir | /usr/share/mysql/charsets/ |+--------------------------+----------------------------+8 rows in set (0.00 sec)

如果真的是这样简单就好了，因为这样的修改作者在重启MySQL的后设置失效！！！

继续寻找其它方法

sudo gedit /etc/mysql/my.cnf

[client]default-character-set=utf8[mysqld]default-character-set=utf8[mysql]default-character-set=utf8

/etc/init.d/mysql start

mysql> show variables like "%char%";+--------------------------+----------------------------+| Variable_name   | Value      |+--------------------------+----------------------------+| character_set_client  | utf8      || character_set_connection | utf8      || character_set_database | utf8      || character_set_filesystem | binary      || character_set_results | utf8      || character_set_server  | utf8      || character_set_system  | utf8      || character_sets_dir  | /usr/share/mysql/charsets/ |+--------------------------+----------------------------+8 rows in set (0.01 sec)

在重启MySQL服务的时候发现一直处于等待状态（PS：猜测发生了死锁什么的），这个时候执行：

mysql -u root -p

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

解决这个问题的时候试过好多方法（重启，恢复）。。。。。

sudo /etc/init.d/mysql status

这些方式不能解决问题，还是从日志开始吧…

找到日至文件 /var/log/mysql/error.log

继续找ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)的解决办法。

答案：

[ mysqld ] 下的 default-character-set=utf8' 改成character_set_server=utf8

好了，终于可以重启MySQL了，并且重启后设置的编码依旧生效。

当然之前创建的数据库需要重新创建T_T

因为 show create database bangjob;展示之前创建的数据编码依旧是latin1

总结

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