新建一個SetCharacterEncodingServlet的類（繼承ActionServlet）,重寫process()方法。如下示：
????????? protected void process(HttpServletRequest request,
??????????? HttpServletResponse response) throws java.io.IOException,
??????????? javax.servlet.ServletException
??????????{
????????????????request.setCharacterEncoding("UTF-8");
????????????? super.process(request, response);
??????????? }
在web.xml中部署ActionServlet。
<servlet>
??? <servlet-name>action</servlet-name>
??? <servlet-class>com..util.UTF8ActionServlet</servlet-class>
??? <init-param>
????? <param-name>config</param-name>
????? <param-value>/WEB-INF/struts-config.xml</param-value>
??? </init-param>
?????<init-param>
????? <param-name>debug</param-name>
????? <param-value>3</param-value>
??? </init-param>
??? <init-param>
????? <param-name>detail</param-name>
????? <param-value>3</param-value>
??? </init-param>
??? <load-on-startup>0</load-on-startup>
? </servlet>

???<servlet-mapping>
??? <servlet-name>action</servlet-name>
??? <url-pattern>*.do</url-pattern>
?? </servlet-mapping>

struts下解決亂碼一法