bitsCN.com
Linux下修改MySQL编码的方法影响项目乱码问题
默认登录mysql之后可以通过SHOW VARIABLES语句查看系统变量及其值。
mysql> show variables like '%character%';
-------------------------- ----------------------------
| Variable_name | Value |
-------------------------- ----------------------------
| character_set_client |latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
-------------------------- ----------------------------
说明:以下是在CentOS-6.2下的设置 (不同的版本可能有些差异,比如文件的位置。但设置的内容应该是一样的)
1. 找到mysql的配置文件,拷贝到etc目录下,第一步很重要
把/usr/share/doc/mysql-server-5.1.52/my-large.cnf 复制到 /etc/my.cnf
即用命令:cp /usr/share/doc/mysql-server-5.1.52/my-large.cnf /etc/my.cnf
2. 打开my.cnf修改编码
在[client]下增加default-character-set=utf8
在[mysqld]下增加default-character-set=utf8
同时加上init_connect='SET NAMES utf8' (设定连接mysql数据库时使用utf8编码,以让mysql数据库为utf8运行)
3.重新启动mysql
service mysqld restart
再次输入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/ |
-------------------------- ----------------------------
即使做了以上修改如果直接数据库再创建表,然后存入中文,取出来的会是问号。解决的办法是:创建数据库的时候指明默认字符集为utf8,如:
create database test default character set utf8;
bitsCN.com