mysql库编码修改，库默认的编码为拉丁文，我创建的agilefant库编码也就是拉丁文的 不支持中文。整个操作过程切记务必先备份库再操作。mysql> show variables like 'collation_%';+----------------------+-------------------+| Variable_name | Value |+----------------------+-------------------+| collation_connection | latin1_swedish_ci || collation_database | latin1_swedish_ci || collation_server | latin1_swedish_ci |+----------------------+-------------------+首先vi /etc/my.cnf[client]#password = your_passwordport = 3306socket = /tmp/mysql.sockdefault-character-set=utf8# Here follows entries for some specific programs# The MySQL server[mysqld]port = 3306socket = /tmp/mysql.sockdatadir = /wwwroot/mysqldefault-character-set=utf8skip-name-resolvedefault-character-set=utf8(这句)再次：mysql> show variables like 'collation_%';ERROR 2006 (HY000): MySQL server has gone awayNo connection. Trying to reconnect...Connection id: 18Current database: agilefant+----------------------+-----------------+| Variable_name | Value |+----------------------+-----------------+| collation_connection | utf8_general_ci || collation_database | utf8_general_ci || collation_server | utf8_general_ci |+----------------------+-----------------+再次：mysqldump -u -p --default-character-set=utf8 -d agilefant > createtables.sql再次：mysqldump -u -p --quick --no-create-info --extended-insert --default-character-set=latin1 agilefant > data.sql (只导出了结构)再把 sed -i 's/latin1/utf8/g' createtables.sqlsed -i 's/latin1/utf8/g' data.sql再导入结构再导入数据即可。网上还看到另外种做法：mysqldump 的时候加上–compatible=mysql40 参数，就可以指定编码了mysqldump -uroot -proot --compatible=mysql40 --default-character-set=utf8 d5s_data > d5s.sql

本文转自 liang3391 51CTO博客，原文链接:http://blog.51cto.com/liang3391/456533