解决hibernate+mysql写入数据库乱码

hibernate.cfg.xml加上属性.
<property name="connection.useUnicode">true</property>
<property name="connection.characterEncoding">UTF-8</property>
mysql 的驱动用3.0.15以上版本的,
加个Filter, 使用UTF-8字符集就可以了,

例如：在hibernate.cfg.xml文件中，如下 :

<p><?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "<a href="http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd</a>"></p> <p><hibernate-configuration></p> <p> <session-factory></p> <p> <property name="connection.driver_class">com.mysql.jdbc.Driver</property> <property name="connection.url">jdbc:mysql://localhost/hibernate</property> <property name="connection.username">root</property> <property name="connection.password">root</property> <property name="dialect">org.hibernate.dialect.MySQLDialect</property> <!-- <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property> <property name="connection.url">jdbc:oracle:thin:@localhost:1521:SXT</property> <property name="connection.username">scott</property> <property name="connection.password">tiger</property> <property name="dialect">org.hibernate.dialect.OracleDialect</property> --></p> <p> <property name="connection.useUnicode">true</property> <property name="connection.characterEncoding">UTF-8</property> </p> <p> <!-- JDBC connection pool (use the built-in) --> <property name="connection.pool_size">1</property></p> <p> </p> <p> <!-- Enable Hibernate's automatic session context management --> <property name="current_session_context_class">thread</property></p> <p> <!-- Disable the second-level cache --> <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property></p> <p> <!-- Echo all executed SQL to stdout --> <property name="show_sql">true</property> <property name="format_sql">true</property></p> <p> <!-- Drop and re-create the database schema on startup <property name="hbm2ddl.auto">update</property>--></p> <p> <mapping class="com.nong.hibernate.model.Teacher"/> </session-factory></p> <p></hibernate-configuration></p>

若使用Spring 在spring的配置文件applicationContex.xml里不知道怎么写，怎么试都不行，后来在web.xml里面配置，就可以了。

<span style="color: #ff6600;">在web.xml 里面配置过滤器</span> <p> <!--encodingFilter --> <filter> <filter-name>encodingFilter</filter-name> <filter-class> org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter></p> <p> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping></p>

以下参考：

1.我的数据库中的表的字符集是gbk

CREATE TABLE `person` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(128) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=gbk

2.连接数据库的字符串 (配合spring写法)

url=jdbc\:mysql\://localhost\:3306/test?useUnicode\=true&characterEncoding\=GBK

在jdbc.properties 文件里面

jdbc.url=jdbc:mysql://localhost:3306/lss?useUnicode=true&characterEncoding=GBK

3.果如两者不同意 中文数据就不能入库 回报一个错误

java.sql.SQLException: Incorrect string value: '\xC3\xA5\