個人筆記：

重寫ActionServlet的process方法。

public class MyActionServlet extends ActionServlet {

@Override
protected void process(HttpServletRequest request,
    HttpServletResponse response) throws IOException, ServletException {
   response.setCharacterEncoding("GBK");
   request.setCharacterEncoding("GBK");
   super.process(request, response);
}

}

web.xml改為：

<servlet>
<servlet-name>action</servlet-name>
<servlet-class>test.lxy.action.base.MyActionServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>