mysqlencode - juedaiyuer/researchNote GitHub Wiki
查看mysql数据库及表编码格式
mysql的默认编码是拉丁
mysql> show variables like 'character_set_database';
+------------------------+--------+
| Variable_name | Value |
+------------------------+--------+
| character_set_database | latin1 |
+------------------------+--------+
1 row in set (0.01 sec)
mysql> show variables like '%character%';
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)
由上图可见database和server的字符集使用了latin1编码方式，不支持中文，即存储中文时会出现乱码.
修改utf-8编码
$ sudo service mysql stop
$ sudo vim /etc/mysql/my.cnf
[mysqld]
#
# * Basic Settings
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /home/juedaiyuer/winddata
tmpdir = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking
# 增加下面两行代码
character_set_server=utf8
init_connect='SET NAMES utf8'
$ sudo service mysql start
mysql start/running, process 3946
查证
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)