解决mysql 数据库中文乱码的几种方式

1、直接设置编码格式

SET character_set_client = utf8;
SET character_set_server = utf8;
SET character_set_connection = utf8;
SET character_set_database = utf8;
SET character_set_results = utf8;
SET collation_connection = utf8_general_ci;
SET collation_database = utf8_general_ci;
SET collation_server = utf8_general_ci;

2、修改连接字符串（很有效）

MySQLConnection con = new MySQLConnection("server=127.0.0.1;uid=root;pwd=;database=test;Charset=utf8"); 

3、修改mysql 安装文件my.ini