mysql5 插入中文乱码问题
我们经常会碰到mysql数据库保存中文乱码这个问题,今天我又碰到了,我的原因是以前使用的是latin1的默认编码, 以前的程序插入中文乱码 ,以前的写法:在source中加入charset=gb2312,然后在插入前执行set names gb2312即可
latin1即是iso8859-1, 所以在插入之前需要将内容转换为iso8859-1, 如下:
代码如下 | 复制代码 |
Encoding iso88591 = Encoding.GetEncoding("iso8859-1"); |
这样转换之后 ,source中不用加入charset参数 ,程序中也不需要先执行set names **, 即可正常插入
如果是mysql服务器我们不知道编码可参考下面方法解决
mysql的字符集是utf8的,光看这点害人不浅。登录,mysql -uroot -p,进入mysql。
命令:SHOW VARIABLES LIKE 'character_set_%';
代码如下 | 复制代码 |
+--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | latin1 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ |
只有character_set_system是utf8。
vi /etc/my.cnf
mysql的默认配置文件以及目录
编辑如下:
[mysqld]
代码如下 | 复制代码 |
default-character-set=utf8 之后:service mysql stop |
重启后,再次查看SHOW VARIABLES LIKE 'character_set_%';
代码如下 | 复制代码 |
+--------------------------+----------------------------+ | Variable_name | Value | +--------------------------+----------------------------+ | character_set_client | latin1 | | character_set_connection | latin1 | | character_set_database | utf8 | | character_set_filesystem | binary | | character_set_results | latin1 | | character_set_server | utf8 | | character_set_system | utf8 | | character_sets_dir | /usr/share/mysql/charsets/ | +--------------------------+----------------------------+ |
此时,character_set_database已经是utf8,工程已经不再乱码。
可以再添加如下一句:
代码如下 | 复制代码 |
default-character-set=utf8 |
也可登录的时候, 要用以下命令:mysql --default-character-set=utf8 -u root -p
则:
代码如下 | 复制代码 |
+--------------------------+----------------------------+ | 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/ | |
最后如果你是php连接mysql中文乱码可参考下办法解决
就是在mysql_connect后面加一句SET NAMES UTF8,即可使得UTF8的消除乱码,对于GBK的则使用SET NAMES GBK,代码如下:
代码如下 | 复制代码 |
$mysql_mylink = mysql_connect($mysql_host, $mysql_user, $mysql_pass); |

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