feat: finish bilingual session auth learning lab

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

@@ -1,20 +1,25 @@
 package com.demo.action;
 
 import com.opensymphony.xwork2.ActionSupport;
+import org.apache.struts2.interceptor.SessionAware;
 
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
+import java.util.Map;
 
-public class LoginAction extends ActionSupport {
+public class LoginAction extends ActionSupport implements SessionAware {
+
+    public static final String SESSION_USER = "demoUser";
+    public static final String SESSION_ROLE = "demoRole";
+    public static final String SESSION_LOGIN_TIME = "demoLoginTime";
 
     private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
 
+    private Map<String, Object> session;
     private String username;
     private String password;
     private String displayName;
-    private String role;
     private String loginTime;
-    private String recommendation;
 
     @Override
     public String execute() {
@@ -26,14 +31,15 @@ public class LoginAction extends ActionSupport {
         }
 
         if ("admin".equals(username) && "123456".equals(password)) {
-            displayName = "System Demo Admin";
-            role = "Administrator";
+            displayName = "ops-admin";
             loginTime = LocalDateTime.now().format(TIME_FORMATTER);
-            recommendation = "Continue with the user form, validation sample, or upload flow to explore the rest of the demo.";
+            session.put(SESSION_USER, displayName);
+            session.put(SESSION_ROLE, "admin");
+            session.put(SESSION_LOGIN_TIME, loginTime);
             return SUCCESS;
         }
 
-        addActionError("Invalid demo credentials. Use admin / 123456.");
+        addActionError("演示账号不正确，请使用 admin / 123456。 / Invalid demo credentials. Use admin / 123456.");
         return INPUT;
     }
 
@@ -43,10 +49,10 @@ public class LoginAction extends ActionSupport {
             return;
         }
         if (username == null || username.length() < 3) {
-            addFieldError("username", "Username must be at least 3 characters.");
+            addFieldError("username", "用户名至少 3 个字符。 / Username must be at least 3 characters.");
         }
         if (password == null || password.length() < 6) {
-            addFieldError("password", "Password must be at least 6 characters.");
+            addFieldError("password", "密码至少 6 个字符。 / Password must be at least 6 characters.");
         }
     }
 
@@ -79,15 +85,12 @@ public class LoginAction extends ActionSupport {
         return displayName;
     }
 
-    public String getRole() {
-        return role;
-    }
-
     public String getLoginTime() {
         return loginTime;
     }
 
-    public String getRecommendation() {
-        return recommendation;
+    @Override
+    public void setSession(Map<String, Object> session) {
+        this.session = session;
     }
 }