feat(v1): add learn/advanced profiles and interactive learning task card

src/main/java/com/example/scaffold/config/LearningProfileInfo.java

@@ -0,0 +1,26 @@
+package com.example.scaffold.config;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Arrays;
+import java.util.Map;
+
+@RestController
+public class LearningProfileInfo {
+
+    @Value("${spring.profiles.active:learn}")
+    private String activeProfile;
+
+    @Value("${app.enabled-modules:ioc,aop,mybatis,transaction,users}")
+    private String[] enabledModules;
+
+    @GetMapping("/api/profile")
+    public Map<String, Object> profileInfo() {
+        return Map.of(
+                "profile", activeProfile,
+                "enabledModules", Arrays.asList(enabledModules)
+        );
+    }
+}

src/main/resources/application-advanced.yml

@@ -0,0 +1,46 @@
+# 高级配置 - 可插拔组件
+spring:
+  config:
+    activate:
+      on-profile: advanced
+  
+  # 数据库选择: h2 / mysql / postgresql
+  datasource:
+    driver-class-name: ${DB_DRIVER:org.h2.Driver}
+    url: ${DB_URL:jdbc:h2:file:~/h2/springboot_scaffold}
+    username: ${DB_USER:sa}
+    password: ${DB_PASS:}
+  
+  # Redis 缓存
+  redis:
+    host: ${REDIS_HOST:localhost}
+    port: ${REDIS_PORT:6379}
+    password: ${REDIS_PASS:}
+    database: ${REDIS_DB:0}
+    timeout: 3000ms
+    lettuce:
+      pool:
+        max-active: 8
+        max-idle: 8
+        min-idle: 0
+
+# 鉴权方案选择: none / jwt / satoken
+auth:
+  type: ${AUTH_TYPE:none}  # none | jwt | satoken
+  jwt:
+    secret: ${JWT_SECRET:your-secret-key}
+    expiration: ${JWT_EXPIRATION:86400000}  # 24小时
+  satoken:
+    timeout: ${SA_TIMEOUT:86400}  # 24小时
+    activity-timeout: ${SA_ACTIVITY_TIMEOUT:1800}  # 30分钟
+
+# 缓存配置
+cache:
+  type: ${CACHE_TYPE:caffeine}  # caffeine | redis
+  redis:
+    time-to-live: 600000  # 10分钟
+
+# MyBatis 多数据库适配
+mybatis:
+  configuration:
+    database-id: ${DB_TYPE:h2}  # h2 | mysql | postgresql

src/main/resources/application-learn.yml

@@ -0,0 +1,20 @@
+# Learn profile: keep dependencies and runtime simple for first-round learning
+spring:
+  config:
+    activate:
+      on-profile: learn
+
+app:
+  profile: learn
+  enabled-modules:
+    - ioc
+    - aop
+    - mybatis
+    - transaction
+    - users
+
+auth:
+  type: none
+
+cache:
+  type: caffeine

src/main/resources/application.properties

@@ -1,7 +1,9 @@
 spring.application.name=springboot-scaffold
 server.port=8082
 
-# H2 Database
+spring.profiles.active=${APP_PROFILE:learn}
+
+# H2 Database (default for learning)
 spring.h2.console.enabled=true
 spring.datasource.url=jdbc:h2:file:~/h2/springboot_scaffold
 spring.datasource.driverClassName=org.h2.Driver

src/main/resources/static/index.html

@@ -41,6 +41,9 @@
         .status-item { background: white; padding: 20px 30px; border-radius: 10px; text-align: center; }
         .status-item .value { font-size: 2em; font-weight: bold; color: #667eea; }
         .status-item .label { color: #666; margin-top: 5px; }
+        .lab { background:#fff7e6; border:1px solid #ffe58f; border-radius:10px; padding:16px; margin-bottom:20px; }
+        .lab h4 { margin-bottom:8px; color:#ad6800; }
+        .lab ul { margin-left:18px; color:#444; line-height:1.7; }
         
         footer { text-align: center; padding: 30px; color: #666; margin-top: 40px; }
     </style>
@@ -69,6 +72,21 @@
                 <div class="value" id="orderCount">-</div>
                 <div class="label">订单数量</div>
             </div>
+            <div class="status-item">
+                <div class="value" id="activeProfile">-</div>
+                <div class="label">当前 Profile</div>
+            </div>
+        </div>
+
+        <div class="lab">
+            <h4>🧪 实验任务卡（事务模块）</h4>
+            <ul>
+                <li>目标：理解事务回滚与 REQUIRES_NEW 差异</li>
+                <li>步骤1：到 transaction.html 创建普通订单（rollback=false）</li>
+                <li>步骤2：再创建模拟失败订单（rollback=true）</li>
+                <li>预期：主事务回滚，但独立事务可保留日志/部分数据（取决于实现）</li>
+                <li>观察点：查看控制台事务日志（TransactionInterceptor TRACE）</li>
+            </ul>
         </div>
         
         <div class="nav">
@@ -78,6 +96,7 @@
             <a href="mybatis.html">💾 MyBatis</a>
             <a href="transaction.html">🔄 事务管理</a>
             <a href="users.html">👥 用户管理</a>
+            <a href="advanced.html">🚀 高级功能</a>
             <a href="api.html">🔌 API 测试</a>
         </div>
         
@@ -142,6 +161,19 @@
                 <a href="users.html" class="btn">开始学习 →</a>
             </div>
             
+            <div class="card">
+                <h3>🚀 高级功能</h3>
+                <p>Redis 缓存、分布式锁、多数据库、认证方案对比，从小白到高手的进阶之路。</p>
+                <ul class="feature-list">
+                    <li><span class="icon">✅</span>Redis 数据类型操作</li>
+                    <li><span class="icon">✅</span>缓存穿透/击穿/雪崩</li>
+                    <li><span class="icon">✅</span>分布式锁实现</li>
+                    <li><span class="icon">✅</span>JWT vs Sa-Token</li>
+                    <li><span class="icon">✅</span>多数据库切换</li>
+                </ul>
+                <a href="advanced.html" class="btn">进阶学习 →</a>
+            </div>
+            
             <div class="card">
                 <h3>🔌 API 测试面板</h3>
                 <p>在线测试所有 API 接口，查看请求响应，理解 RESTful API 工作原理。</p>
@@ -180,17 +212,19 @@
         // 加载状态数据
         async function loadStatus() {
             try {
-                const [beans, users, products, orders] = await Promise.all([
+                const [beans, users, products, orders, profile] = await Promise.all([
                     fetch('/api/learning/ioc/beans').then(r => r.json()),
                     fetch('/api/users/count').then(r => r.json()),
                     fetch('/api/products').then(r => r.json()),
-                    fetch('/api/orders').then(r => r.json())
+                    fetch('/api/orders').then(r => r.json()),
+                    fetch('/api/profile').then(r => r.json())
                 ]);
                 
                 document.getElementById('beanCount').textContent = beans.total || '-';
                 document.getElementById('userCount').textContent = users.count || 0;
                 document.getElementById('productCount').textContent = products.length || 0;
                 document.getElementById('orderCount').textContent = orders.length || 0;
+                document.getElementById('activeProfile').textContent = profile.profile || '-';
             } catch (e) {
                 console.error('加载状态失败:', e);
             }