解决乱码问题

在web.xml中配置

<!-- 乱码解决 -->    <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>