1.保证mysql版本5.5.3及以上,mysql在5.5.3版本中引入新的编码格式,取名为utf8mb4,
如果是在mysql客户端:
mysql> status;
或者
mysql> select version();
查看mysql版本 http://www.cnblogs.com/end/archive/2011/10/18/2216461.html
2.修改配置文件my.cnf
vim /etc/my.cnf
添加编码格式配置:
[client] default-character-set = utf8mb4 [mysql] default-character-set = utf8mb4 [mysqld] character-set-client-handshake = FALSE character-set-server = utf8mb4 collation-server = utf8mb4_unicode_ci
然后重启mysql服务,因oracle问题,mysql在linux下没有注册成服务,参考前面安装mysql的文章
查找mysql进程
ps -ef | grep mysql
杀进程号,例如:我的两个进程号是:928和1085
kill -9 928 kill -9 1085
启动mysql服务,如果在root用户下,不用加“sudo”
sudo /usr/local/mysql/bin/mysqld_safe --user=mysql &
查看mysql编码
show variables like 'collation_%' show variables like 'character%';
3.jdbc驱动需要 mysql-connector-java-5.1.35-bin.jar
mysql官网找最新jdbc驱动,地址:
http://dev.mysql.com/downloads/file.php?id=456317
4.jdbc驱动配置:
jdbc\:mysql\://127.0.0.1\:3306/db_mydb?autoReconnect\=true
去掉:
&useUnicode=true&characterEncoding=UTF-8
附:
通过MySQL命令行修改:
mysql> set character_set_client=utf8mb4; mysql> set character_set_connection=utf8mb4; mysql> set character_set_database=utf8mb4; mysql> set character_set_results=utf8mb4; mysql> set character_set_server=utf8mb4; mysql> set character_set_system=utf8mb4; mysql> set collation_connection=utf8mb4; mysql> set collation_database=utf8mb4; mysql> set collation_server=utf8mb4;