Server characterset和Db characterset从latin1设置为utf8

一、永久方法：修改/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

server-id=2

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
character_set_server=utf8

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

二、临时方法，一次重启mysql就失效