解决mysql中无法显示中文的一个实例

rwrr322

1 登录数据库

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amp1:~ # mysql -uroot -pmysql.rzrk Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 2132 Server version: 5.0.95-log SUSE MySQL RPM Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

2 使用xiaobing库

1 2	mysql> use xiaobing;   Database changed

3 查xiaobing库中的表

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mysql> show tables; +--------------------+ | Tables_in_xiaobing | +--------------------+ | luzhi          | | t1            | +--------------------+ 2 rows in set (0.00 sec)

4 查表luzhi的表结构

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mysql> desc luzhi; +-------+----------+------+-----+---------+-------+ | Field | Type    | Null | Key | Default | Extra | +-------+----------+------+-----+---------+-------+ | id   | int(10)  | YES  |   | NULL   |     | | name  | char(30) | YES  |   | NULL   |     | +-------+----------+------+-----+---------+-------+ 2 rows in set (0.00 sec)

5 查看表luzhi的数据

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mysql> seclect * from luzhi; 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 'seclect * from luzhi' at line 1 mysql> select * from luzhi; +------+-------+ | id  | name  | +------+-------+ |   2 | o`    |    |    4 | f    | +------+-------+ 4 rows in set (0.00 sec)   ##发现输出为乱码

6 查当前数据库所使用的字符编码

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

7 临时性的更改当前的数据编码

    set names utf8;   

    相当于：

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

1 2	mysql> set names utf8; Query OK, 0 rows affected (0.00 sec)

8 查看是否成功修改了

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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    | gbk                | | character_set_system    | utf8                | | character_sets_dir     | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ 8 rows in set (0.00 sec) 9 再次查询表luzhi的数据，发现可以正常显示 mysql> select * from luzhi; +------+---------+ | id  | name   | +------+---------+ |   2 | 你好   | |   4 | 甪直   | +------+---------+ 4 rows in set (0.01 sec)

10 上面的方法只是临时的更改，当退出mysql再次进入的就会失效了。
永久更改：

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#vim /etc/my.cnf       [client] #password       = your_password port            = 3306 socket          = /var/lib/mysql/mysql.sock default-character-set=gbk  #这里可以设置你所需要定义的编码 utf8 # Here follows entries for some specific programs # The MySQL server [mysqld] port            = 3306 socket          = /var/lib/mysql/mysql.sock datadir = /home/rzrk/mysql skip-locking key_buffer = 16M max_allowed_packet = 1M table_cache = 64 sort_buffer_size = 512K net_buffer_length = 8K read_buffer_size = 256K read_rnd_buffer_size = 512K myisam_sort_buffer_size = 8M default-character-set=gbk  #这里可以设置你所需要定义的编码 utf8

修改完成后必须重启mysql才能生效

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#service mysql restart #mysql uroot -p > show variables like "character%";