设置 web.xml 文件,就可以了
<!-- 设置字符编码为UTF-8 -->
<filter>
<filter-name>characterEncodingFilter</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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
修改Tomcat的配置文件server.xml,添加URIEncoding="UTF-8"
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443"
URIEncoding="UTF-8"/>
数据库中设置UTF-8,数据库连接
jdbc.url=jdbc:mysql://localhost:3306/db_user?useUnicode=true&characterEncoding=UTF-8