mysql修改编码失败的解决办法就是在连接url后加上代码“?useUnicode=true&characterEncoding=UTF-8”即可。
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mysql 修改编码不成功解决办法
问题描述:
改为UTF8之后,重新进入mysql,它又自动改回latin1
有个方法很简单,在连接url后加上如下代码即可:
?useUnicode=true&characterEncoding=UTF-8
特别注意,两个属性之间一定要用&符号的转义符,且不能带空格,否则会报错。
例子如下 hibernate.cfg.xml配置文件:
<? xml version = '1.0' encoding = 'UTF-8' ?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <!-- Generated by MyEclipse Hibernate Tools. --> < hibernate-configuration > < session-factory > < property name = "dialect" > org.hibernate.dialect.MySQLDialect </ property > < property name = "connection.url" > jdbc:mysql://localhost:3306/share?useUnicode=true&characterEncoding=UTF-8 </ property > < property name = "connection.username" >root</ property > < property name = "connection.password" >accp</ property > < property name = "connection.driver_class" > com.mysql.jdbc.Driver </ property > < property name = "myeclipse.connection.profile" >ssh</ property > < property name = "show_sql" >true</ property > < property name = "format_sql" >true</ property > < mapping resource = "cn/lihuoqing/po/ShUser.hbm.xml" /> < mapping resource = "cn/lihuoqing/po/ShOptions.hbm.xml" /> < mapping resource = "cn/lihuoqing/po/ShFiles.hbm.xml" /> < mapping resource = "cn/lihuoqing/po/ShComments.hbm.xml" /> < mapping resource = "cn/lihuoqing/po/ShDown.hbm.xml" /> </ session-factory > </ hibernate-configuration >
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1 修改数据库级
a. 临时更改:
mysql>SET GLOBAL character_set_database=utf8;
b. 永久更改:
改了服务器级就可以了
2.修改表级
mysql>ALTER TABLE table_name DEFAULT CHARSET utf8;
更改了后永久生效
3.修改列级
修改示例:
mysql>alter table `products` change `products_model` `products_model` varchar( 20 ) character set utf8 collate utf8_general_ci null default null;
更改了后永久生效
4.更改连接字符集
a. 临时更改:
mysql> set names utf8;
b. 永久更改:
修改my.ini文件 (linux 为my.cnf)
从my.ini下手
[client] default-character-set=utf8 [mysql] default-character-set=utf8 [mysqld] default-character-set=utf8
linux 下修改这里容易遇到问题,出错后请参考http://blog.csdn.net/zhongdajiajiao/article/details/51698845
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