feat: expand struts demo lab

web/WEB-INF/classes/com/demo/action/HelloAction.java

@@ -2,33 +2,50 @@ package com.demo.action;
 
 import com.opensymphony.xwork2.ActionSupport;
 
-/**
- * Hello World 示例 Action
- * 展示 Struts2 最基础的 Action 写法
- * 
- * ActionSupport 提供了：
- * - validate() 方法用于表单验证
- * - getText() 方法用于国际化
- * - addActionError()/addFieldError() 用于错误消息
- */
 public class HelloAction extends ActionSupport {
-    
+
     private String name;
     private String message;
-    
+    private String tip;
+    private String nextStep;
+    private String requestSample;
+
     @Override
-    public String execute() throws Exception {
-        // 业务逻辑
+    public String execute() {
         if (name == null || name.trim().isEmpty()) {
             name = "World";
+        } else {
+            name = name.trim();
         }
-        message = "Hello, " + name + "! 欢迎学习 Struts2!";
+
+        message = "Hello, " + name + "! Welcome to the Struts2 demo lab.";
+        tip = "Struts2 injected the request parameter into the action property before execute() ran.";
+        nextStep = "Try the login flow or open the demo catalog to compare different action patterns.";
+        requestSample = "/hello?name=Platform%20Team";
         return SUCCESS;
     }
-    
-    // Getter/Setter (Struts2 需要这些来获取/设置参数)
-    public String getName() { return name; }
-    public void setName(String name) { this.name = name; }
-    public String getMessage() { return message; }
-    public void setMessage(String message) { this.message = message; }
-}
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public String getTip() {
+        return tip;
+    }
+
+    public String getNextStep() {
+        return nextStep;
+    }
+
+    public String getRequestSample() {
+        return requestSample;
+    }
+}