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HomeDatabaseMysql Tutorial MySQL字符集的一个坑

今天帮同事处理一个棘手的事情,问题是这样的: 无论在客户机用哪个版本的mysql客户端连接服务器,发现只要服务器端设置了 character-set-server = utf8 之后, character_set_client、character_set_connection、character_set_results 就始终都是和服务器

今天帮同事处理一个棘手的事情,问题是这样的:

无论在客户机用哪个版本的mysql客户端连接服务器,发现只要服务器端设置了

character-set-server = utf8

之后,

character_set_client、character_set_connection、character_set_results

就始终都是和服务器端保持一致了,即便在mysql客户端加上选项

--default-character-set=utf8

也不行,除非连接进去后,再手工执行命令

set names latin1

,才会将client、connection、results的字符集改过来。

经过仔细对比,最终发现让我踩坑的地方是,服务器端设置了另一个选项:

skip-character-set-client-handshake

文档上关于这个选项的解释是这样的:

--character-set-client-handshake Don't ignore character set information sent by the client. To ignore client information and use the default server character set, use --skip-character-set-client-handshake; this makes MySQL behave like MySQL 4.0

这么看来,其实也是有好处的。比如启用skip-character-set-client-handshake 选项后,就可以避免客户端程序误操作,使用其他字符集连接进来并写入数据,从而引发乱码问题。

 

本条目发布于2013/10/29。属于数据库分类,被贴了 charset、MySQL、字符集 标签。作者是yejr 2013年Oracle技术嘉年华
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