MySQL服務端編碼設置
安裝完mysql，啟動后發現服務器默認使用的是lat1編碼。
具體操作和查看過程如下：
啟動方式：/etc/init.d/mysql.server start
效果：
Database changed
mysql> status
--------------
mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (x86_64) using readline 5.1
Connection id: 8
Current database: demodb
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ''
Using delimiter: ;
Server version: 5.5.21 MySQL Community Server (GPL)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: latin1
Db characterset: utf8
Client characterset: latin1
Conn. characterset: latin1
UNIX socket: /var/lib/mysql/mysql.sock
Uptime: 33 sec
Threads: 7 Questions: 137 Slow queries: 0 Opens: 83 Flush tables: 1 Open tables: 76 Queries per second avg: 4.151
--------------
mysql>
啟動方式： /etc/init.d/mysql.server start --character-set-server=utf8
效果：
mysql> use demodb;
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> status;
--------------
mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (x86_64) using readline 5.1
Connection id: 4
Current database: demodb
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ''
Using delimiter: ;
Server version: 5.5.21 MySQL Community Server (GPL)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: utf8
Db characterset: utf8
Client characterset: latin1
Conn. characterset: latin1
UNIX socket: /var/lib/mysql/mysql.sock
Uptime: 1 min 15 sec
Threads: 4 Questions: 131 Slow queries: 0 Opens: 84 Flush tables: 1 Open tables: 77 Queries per second avg: 1.746
--------------
mysql>
這種方式,在每次啟動的時候都需要指定編碼參數。否則服務器就使用的是系統默認的lat1編碼。
另外一種方法是：
這種方法我也試了，不行，再重新登錄客戶端后，就又恢復了原來的編碼。理由很簡單，系統啟動的時候用的不是utf8編碼。
一勞永逸的辦法,就是通過修改配置文件實現.
# vim /etc/my.cnf
內容如下:
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
#添加下面的紅字內容
character-set-server=utf8
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
原文鏈接：http://www.blogjava.net/zhyiwww/archive/2012/03/01/371055.html
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