linux下设置mysql数据库字符集utf8

mysql中文乱码解决方法：将mysql数据库编码统一utf8

查看数据库编码：

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<span style="font-size: 16px;"><strong>show variables like'character%';</strong></span>

 

编辑/etc/my.cnf

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[mysql]

default-character-set=utf8

[mysqld]

datadir=/var/lib/mysql

socket=/var/lib/mysql/mysql.sock

user=mysql

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-links=0

default-character-set = utf8

character_set_server = utf8

#lower_case_table_names=1 忽略大小写

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

default-character-set = utf8

[mysql.server]

default-character-set = utf8

[client]

default-character-set = utf8

　　

 

修改完成后，service mysql restart重启mysql服务就生效。注意：[mysqld]字段与[mysql]字段是有区别的。　　

如果上面的都修改了还乱码，那剩下问题就一定在connection连接层上。解决方法是在发送查询前执行一下下面这句（直接写在SQL文件的最前面）：
SET NAMES 'utf8';

它相当于下面的三句指令：

SET character_set_client = utf8;
SET character_set_results = utf8;
SET character_set_connection = utf8;

执行show variables like 'character%' 跟下面一样说明修改成功

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mysql> show variables like'character%';

+--------------------------+----------------------------+

| 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)