服务器端字符集

mysql> SHOW VARIABLES LIKE 'character_set%';

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

| 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/local/mysql/share/charsets/ |

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

8 rows in set (0.00 sec)

默认字符集是utf8

但是客户端连接

[root@mongod2 ~]# mysql -h xxx.xxx.xxx.xxx -u xxx -P 3306 -p

Enter password:

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 1749179

Server version: 5.6.10-log Source distribution

Copyright (c) 2000, 2012, 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> SHOW VARIABLES LIKE 'character_set%';

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

| Variable_name            | Value                            |

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

| character_set_client     | latin1                           |

| character_set_connection | latin1                           |

| character_set_database   | utf8                             |

| character_set_filesystem | binary                           |

| character_set_results    | latin1                           |

| character_set_server     | utf8                             |

| character_set_system     | utf8                             |

| character_sets_dir       | /usr/local/mysql/share/charsets/ |

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

8 rows in set (0.00 sec)

mysql> exit

可以在该会话执行

set character_set_client='utf8';

set  character_set_connection='utf8';

set character_set_results='utf8';

使该会话插入查询等操作字符集问题排除

根本解决办法：

修改客户端配置文件，添加[mysql]   default-character-set=utf8行

[root@mongod2 ~]# vim /etc/my.cnf

[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

[mysqld_safe]

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

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

[mysql]

default-character-set=utf8

再次查看

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/local/mysql/share/charsets/ |

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

8 rows in set (0.00 sec)

字符集与服务器端一样，插入查看都没问题，不再出现乱码

mysql乱码主要牵涉三个参数

修改my.in如下  [client]  port=3306  default-character-set=utf8  [mysql]  default-character-set=utf8  [mysqld]  port=3306  default-character-set=utf8