ubuntu使用apt-get安装mysql后，server的默认编码是latin1，下面把server的编码修改成utf8。
编码相关信息：
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mysql> show variables like 'character%';
+--------------------------+----------------------------+| Variable_name | Value |+--------------------------+----------------------------+| character_set_client | utf8 || character_set_connection | utf8 || character_set_database | latin1 || character_set_filesystem | binary || character_set_results | utf8 || character_set_server | latin1 || character_set_system | utf8 || character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+ |
可以看到character_set_database 和 character_set_server 的编码都是latin1。
修改mysql的编码
打开mysql的配置文件/etc/mysql/my.cnf
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vim /etc/mysql/my.cnf
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在[mysqld]里追加
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character-set-server=utf8
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保存后，重启mysql。
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/etc/init.d/mysql restart
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编码就正确了。
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mysql> show variables like 'character%';
+--------------------------+----------------------------+| 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/ |
+--------------------------+----------------------------+ |
完成。