修复SonarQube：Logger格式化、System.out替换、删除注释代码

core/src/main/java/com/smartlibrary/notification/SMSNotification.java

@@ -4,6 +4,7 @@ import com.smartlibrary.observer.BookStatusObserver;
 import com.smartlibrary.observer.BookEventType;
 import com.smartlibrary.model.Book;
 import com.smartlibrary.model.Loan;
+import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.regex.Pattern;
 
@@ -29,20 +30,20 @@ public class SMSNotification implements Notification, BookStatusObserver {
     @Override
     public boolean sendNotification(String recipient, String subject, String message) {
         if (!validateRecipient(recipient)) {
-            LOGGER.warning("无效的手机号码: " + recipient);
+            LOGGER.log(Level.WARNING, "无效的手机号码: {0}", recipient);
             return false;
         }
         
         try {
             // 模拟发送短信
             LOGGER.info("正在发送短信...");
-            LOGGER.info("服务提供商: " + serviceProvider);
-            LOGGER.info("收件人: " + recipient);
-            LOGGER.info("内容: " + message);
+            LOGGER.log(Level.INFO, "服务提供商: {0}", serviceProvider);
+            LOGGER.log(Level.INFO, "收件人: {0}", recipient);
+            LOGGER.log(Level.INFO, "内容: {0}", message);
             LOGGER.info("短信发送成功!");
             return true;
         } catch (Exception e) {
-            LOGGER.severe("短信发送失败: " + e.getMessage());
+            LOGGER.log(Level.SEVERE, "短信发送失败: {0}", e.getMessage());
             return false;
         }
     }

core/src/main/java/com/smartlibrary/observer/BookNotificationObserver.java

@@ -7,12 +7,16 @@ import com.smartlibrary.notification.InAppNotification;
 import com.smartlibrary.notification.Notification;
 import com.smartlibrary.notification.SMSNotification;
 
+import java.util.logging.Logger;
+
 /**
  * 图书状态通知观察者 - 实现观察者模式
  * 负责在图书状态变更时发送通知
  */
 @SuppressWarnings("unused") // 预留字段，用于多渠道通知功能扩展
 public class BookNotificationObserver implements BookStatusObserver {
+    private static final Logger LOGGER = Logger.getLogger(BookNotificationObserver.class.getName());
+    
     private Notification emailNotification;
     private Notification smsNotification;
     private Notification inAppNotification;
@@ -45,7 +49,7 @@ public class BookNotificationObserver implements BookStatusObserver {
                 break;
             default:
                 // 其他事件记录日志
-                System.out.println("图书事件: " + eventType.getDescription() + " - " + message);
+                LOGGER.info("图书事件: " + eventType.getDescription() + " - " + message);
                 break;
         }
     }
@@ -68,7 +72,7 @@ public class BookNotificationObserver implements BookStatusObserver {
                 break;
             default:
                 // 其他借阅事件记录日志
-                System.out.println("借阅事件: " + eventType.getDescription() + " - " + message);
+                LOGGER.info("借阅事件: " + eventType.getDescription() + " - " + message);
                 break;
         }
     }
@@ -109,8 +113,7 @@ public class BookNotificationObserver implements BookStatusObserver {
      * 发送通知给所有用户
      */
     private void sendNotificationToAllUsers(String subject, String message) {
-        // 模拟发送给所有用户
-        System.out.println("发送通知给所有用户:");
+        LOGGER.info("发送通知给所有用户");
         inAppNotification.sendNotification("all_users", subject, message);
     }
     
@@ -118,8 +121,7 @@ public class BookNotificationObserver implements BookStatusObserver {
      * 发送通知给预约用户
      */
     private void sendNotificationToReservedUsers(Book book, String subject, String message) {
-        // 模拟发送给预约用户
-        System.out.println("发送通知给预约用户:");
+        LOGGER.info("发送通知给预约用户");
         inAppNotification.sendNotification("reserved_users_" + book.getId(), subject, message);
     }
     
@@ -127,8 +129,7 @@ public class BookNotificationObserver implements BookStatusObserver {
      * 发送通知给管理员
      */
     private void sendNotificationToAdmin(String subject, String message) {
-        // 模拟发送给管理员
-        System.out.println("发送通知给管理员:");
+        LOGGER.info("发送通知给管理员");
         emailNotification.sendNotification("admin@library.com", subject, message);
     }
     
@@ -136,11 +137,7 @@ public class BookNotificationObserver implements BookStatusObserver {
      * 发送通知给特定用户
      */
     private void sendNotificationToUser(String userId, String subject, String message) {
-        // 模拟发送给特定用户
-        System.out.println("发送通知给用户 " + userId + ":");
+        LOGGER.info("发送通知给用户: " + userId);
         inAppNotification.sendNotification(userId, subject, message);
-        // 也可以同时发送邮件或短信
-        // emailNotification.sendNotification(getUserEmail(userId), subject, message);
-        // smsNotification.sendNotification(getUserPhone(userId), subject, message);
     }
 }