解决Java程序使用MySQL时返回参数为乱码的示例教程

default-character-set=utf8  //客户端的默认字符集

SHOW VARIABLES LIKE 'character%'; 

port = 3306 
socket = /var/lib/mysql/mysql.sock 
default-character-set=utf8 

port = 3306 
socket = /var/lib/mysql/mysql.sock 
character-set-server=utf8 

no-auto-rehash 
default-character-set=utf8 

+--------------------------+----------------------------+ 
| 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/ | 
+--------------------------+----------------------------+ 

SET NAMES ‘utf8′; 

SET character_set_client = utf8; 
SET character_set_results = utf8; 
SET character_set_connection = utf8;