1. 首先登陆MySQL查看默认编码，应该存在Latin编码，不支持中文

mysql> show variables like '%character%';

2. 关闭MySQL

# /etc/init.d/mysql stop

3. 接下来创建并修改配置文件

把/usr/share/doc/mysql-server-5.1.52/my-large.cnf 复制到 /etc/my.cnf

用命令：cp /usr/share/doc/mysql-server-5.1.52/my-large.cnf? /etc/my.cnf

打开my.cnf后添加配置信息

在[client]节点下面加入　　default-character-set=utf8
在[mysqld]节点下面加　　character_set_server=utf8　　　init_connect='SET NAMES utf8'
在[mysql]节点下面加入　default-character-set=utf8

修改后的配置文件my.cnf如下：

# Example MySQL config file for large systems.
#
# This is for a large system with memory = 512M where the system runs mainly
# MySQL.
#
# MySQL programs look for option files in a set of
# locations which depend on the deployment platform.
# You can copy this option file to one of those
# locations. For information about these locations, see:
# http://dev.mysql.com/doc/mysql/en/option-files.html
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.

# The following options will be passed to all MySQL clients
[client]
#password?= your_password
port? = 3306
socket? = /var/lib/mysql/mysql.sock
default-character-set=utf8
# Here follows entries for some specific programs

# The MySQL server
[mysqld]
port? = 3306
socket? = /var/lib/mysql/mysql.sock
skip-external-locking
key_buffer_size = 256M
max_allowed_packet = 1M
table_open_cache = 256
sort_buffer_size = 1M
read_buffer_size = 1M
read_rnd_buffer_size = 4M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size= 16M
# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 8
character_set_server=utf8
init_connect='SET NAMES utf8'

# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
#
#skip-networking

# Replication Master Server (default)
# binary logging is required for replication
log-bin=mysql-bin

# binary logging format - mixed recommended
binlog_format=mixed

# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id?= 1