feat(aop): 添加公告管理功能并完善日志记录

- 新增 Announcement 实体类，包含公告的基本属性和状态类型定义
- 在 Spring 配置文件中注册公告 Bean 并设置初始数据
- 扩展日志切面功能，增加方法参数信息记录
- 更新测试类，集成公告服务的 AOP 切入点测试
- 实现公告信息的控制台打印和字符串表示方法

grademanagement-SpringProject/src/bean-aop-xml.xml

@@ -42,5 +42,18 @@
         <property name="deptAddress" value="实验楼A座"/>
         <property name="dean" value="李教授"/>
     </bean>
+    <!-- 1. 配置公告实体类Bean -->
+    <bean id="announcement" class="com.ssm.aop.xml.Announcement">
+        <property name="id" value="1"/>
+        <property name="title" value="系统维护通知"/>
+        <property name="content" value="系统将于今晚22:00-24:00进行维护，请提前保存数据。"/>
+        <property name="publisher" value="系统管理员"/>
+        <property name="publishTime" value="2025-04-21 10:30"/>
+        <property name="status" value="1"/> <!-- 1:已发布 -->
+        <property name="type" value="4"/>   <!-- 4:系统 -->
+        <property name="expireDate" value="2025-04-30"/>
+        <property name="readCount" value="128"/>
+    </bean>
+
 
 </beans>

grademanagement-SpringProject/src/com/ssm/aop/xml/Announcement.java

@@ -0,0 +1,171 @@
+package com.ssm.aop.xml;
+
+/**
+ * 公告栏实体类
+ * 对应模块：公告栏管理
+ */
+public class Announcement {
+    // 公告ID
+    private Integer id;
+    // 公告标题
+    private String title;
+    // 公告内容
+    private String content;
+    // 发布人
+    private String publisher;
+    // 发布时间（改为String类型，避免转换问题）
+    private String publishTime;
+    // 公告状态（0:草稿 1:已发布 2:已下架）
+    private Integer status;
+    // 公告类型（1:通知 2:重要 3:活动 4:系统 5:紧急）
+    private Integer type;
+    // 截止日期（改为String类型）
+    private String expireDate;
+    // 阅读次数
+    private Integer readCount;
+
+    // 无参构造
+    public Announcement() {}
+
+    // 有参构造
+    public Announcement(Integer id, String title, String content, String publisher,
+                        String publishTime, Integer status, Integer type,
+                        String expireDate, Integer readCount) {
+        this.id = id;
+        this.title = title;
+        this.content = content;
+        this.publisher = publisher;
+        this.publishTime = publishTime;
+        this.status = status;
+        this.type = type;
+        this.expireDate = expireDate;
+        this.readCount = readCount;
+    }
+
+    // Getter & Setter 方法
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String getPublisher() {
+        return publisher;
+    }
+
+    public void setPublisher(String publisher) {
+        this.publisher = publisher;
+    }
+
+    public String getPublishTime() {
+        return publishTime;
+    }
+
+    public void setPublishTime(String publishTime) {
+        this.publishTime = publishTime;
+    }
+
+    public Integer getStatus() {
+        return status;
+    }
+
+    public void setStatus(Integer status) {
+        this.status = status;
+    }
+
+    public Integer getType() {
+        return type;
+    }
+
+    public void setType(Integer type) {
+        this.type = type;
+    }
+
+    public String getExpireDate() {
+        return expireDate;
+    }
+
+    public void setExpireDate(String expireDate) {
+        this.expireDate = expireDate;
+    }
+
+    public Integer getReadCount() {
+        return readCount;
+    }
+
+    public void setReadCount(Integer readCount) {
+        this.readCount = readCount;
+    }
+
+    // 获取状态描述
+    public String getStatusDesc() {
+        switch (status) {
+            case 0: return "草稿";
+            case 1: return "已发布";
+            case 2: return "已下架";
+            default: return "未知";
+        }
+    }
+
+    // 获取类型描述
+    public String getTypeDesc() {
+        switch (type) {
+            case 1: return "通知";
+            case 2: return "重要";
+            case 3: return "活动";
+            case 4: return "系统";
+            case 5: return "紧急";
+            default: return "未知";
+        }
+    }
+
+    /**
+     * 自定义printInfo方法：控制台打印公告信息
+     */
+    public void printInfo() {
+        System.out.println("===== 【公告管理】信息 =====");
+        System.out.println("公告ID    : " + id);
+        System.out.println("公告标题  : " + title);
+        System.out.println("公告内容  : " + content);
+        System.out.println("发布人    : " + publisher);
+        System.out.println("发布时间  : " + publishTime);
+        System.out.println("状态      : " + getStatusDesc());
+        System.out.println("类型      : " + getTypeDesc());
+        System.out.println("截止日期  : " + expireDate);
+        System.out.println("阅读次数  : " + readCount);
+        System.out.println("==========================\n");
+    }
+
+    @Override
+    public String toString() {
+        return "Announcement{" +
+                "id=" + id +
+                ", title='" + title + '\'' +
+                ", content='" + content + '\'' +
+                ", publisher='" + publisher + '\'' +
+                ", publishTime='" + publishTime + '\'' +
+                ", status=" + status + "(" + getStatusDesc() + ")" +
+                ", type=" + type + "(" + getTypeDesc() + ")" +
+                ", expireDate='" + expireDate + '\'' +
+                ", readCount=" + readCount +
+                '}';
+    }
+}

grademanagement-SpringProject/src/com/ssm/aop/xml/Log.java

@@ -9,6 +9,14 @@ public class Log {
         String className = joinPoint.getTarget().getClass().getName();
         // 获取目标方法名
         String methodName = joinPoint.getSignature().getName();
+        // 获取方法参数
+        Object[] args = joinPoint.getArgs();
+        String argsInfo = "";
+        if (args != null && args.length > 0) {
+            argsInfo = "，参数：" + args[0];
+        }
         System.out.println("前置通知：模拟日志记录...目标类是：" + className + "，被切入通知的目标方法为：" + methodName);
+
     }
+
 }

grademanagement-SpringProject/src/com/ssm/aop/xml/Test.java

@@ -8,10 +8,20 @@ public class Test {
         // 加载Spring配置文件
         ApplicationContext ac = new ClassPathXmlApplicationContext("bean-aop-xml.xml");
 
-        // 获取Department的Bean实例
+        // 获取Student的Bean实例
+        Student student = (Student) ac.getBean("student");
         Department department = (Department) ac.getBean("department");
 
         // 调用打印方法（AOP会自动切入前置通知）
+        student.printInfo();
         department.printInfo();
+        // 获取公告服务Bean实例
+        Announcement service = (Announcement) ac.getBean("announcement");
+
+        // 调用业务方法（AOP会自动切入前置通知）
+        System.out.println("========== 测试发布公告 ==========");
+        service.printInfo();
+
+        System.out.println("\n========== 测试获取公告详情 ==========");
     }
 }