feat: expand struts demo lab

web/WEB-INF/web.xml

@@ -5,14 +5,13 @@
          http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
          version="4.0">
 
-    <display-name>Struts2 学习 Demo</display-name>
+    <display-name>Struts2 Demo Lab</display-name>
 
-    <!-- Struts2 核心过滤器 -->
     <filter>
         <filter-name>struts2</filter-name>
         <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
     </filter>
-    
+
     <filter-mapping>
         <filter-name>struts2</filter-name>
         <url-pattern>/*</url-pattern>
@@ -21,8 +20,7 @@
     <welcome-file-list>
         <welcome-file>index.jsp</welcome-file>
     </welcome-file-list>
-    
-    <!-- 错误页面配置 -->
+
     <error-page>
         <error-code>404</error-code>
         <location>/error/404.jsp</location>
@@ -31,4 +29,4 @@
         <error-code>500</error-code>
         <location>/error/500.jsp</location>
     </error-page>
-</web-app>
+</web-app>