抽象基类

core/src/main/java/com/smartlibrary/factory/AbstractBookFactory.java

@@ -0,0 +1,65 @@
+package com.smartlibrary.factory;
+
+import com.smartlibrary.model.Book;
+
+import java.time.LocalDate;
+
+/**
+ * 抽象图书工厂基类
+ * 提供通用的图书创建逻辑，减少代码重复
+ */
+public abstract class AbstractBookFactory implements BookFactory {
+    
+    /**
+     * 创建基础图书对象
+     * 设置所有图书类型共有的属性
+     */
+    protected Book createBaseBook(String id, String title, String author, String isbn, 
+                                 String publisher, LocalDate publishDate, String category) {
+        Book book = new Book();
+        book.setId(id);
+        book.setTitle(title);
+        book.setAuthor(author);
+        book.setIsbn(isbn);
+        book.setPublisher(publisher);
+        book.setPublishDate(publishDate);
+        book.setCategory(category);
+        book.setAvailable(true); // 默认设置为可借阅
+        
+        return book;
+    }
+    
+    /**
+     * 模板方法：创建图书对象
+     * 子类可以重写此方法以添加特定逻辑
+     */
+    @Override
+    public Book createBook(String id, String title, String author, String isbn, 
+                          String publisher, LocalDate publishDate, String category) {
+        Book book = createBaseBook(id, title, author, isbn, publisher, publishDate, category);
+        book.setBookType(getBookType());
+        
+        // 调用钩子方法，允许子类添加特定属性
+        customizeBook(book);
+        
+        // 记录创建日志
+        logBookCreation(book);
+        
+        return book;
+    }
+    
+    /**
+     * 钩子方法：子类可以重写以自定义图书属性
+     * 默认实现为空
+     */
+    protected void customizeBook(Book book) {
+        // 子类可以重写此方法添加特定属性
+    }
+    
+    /**
+     * 记录图书创建日志
+     */
+    protected void logBookCreation(Book book) {
+        System.out.println("创建" + getBookType() + ": " + book.getTitle());
+    }
+}

core/src/main/java/com/smartlibrary/factory/EBookFactory.java

@@ -2,36 +2,26 @@ package com.smartlibrary.factory;
 
 import com.smartlibrary.model.Book;
 
-import java.time.LocalDate;
-
 /**
  * 电子书工厂 - 实现工厂模式
  * 创建电子书类型的图书对象
  */
-public class EBookFactory implements BookFactory {
+public class EBookFactory extends AbstractBookFactory {
     
     @Override
-    public Book createBook(String id, String title, String author, String isbn, 
-                          String publisher, LocalDate publishDate, String category) {
-        Book book = new Book();
-        book.setId(id);
-        book.setTitle(title);
-        book.setAuthor(author);
-        book.setIsbn(isbn);
-        book.setPublisher(publisher);
-        book.setPublishDate(publishDate);
-        book.setCategory(category);
-        book.setBookType("电子书");
-        book.setAvailable(true); // 电子书通常总是可借阅
-        
-        // 电子书特有属性可以在这里设置
-        System.out.println("创建电子书: " + title);
-        
-        return book;
+    public String getBookType() {
+        return "电子书";
     }
     
+    /**
+     * 电子书特有属性设置
+     */
     @Override
-    public String getBookType() {
-        return "电子书";
+    protected void customizeBook(Book book) {
+        // 电子书通常总是可借阅
+        // 电子书特有属性可以在这里设置
+        // 例如：设置文件格式、文件大小、下载链接等
+        book.setFormat("PDF"); // 示例：设置默认格式
+        book.setFileSize(1024); // 示例：设置默认文件大小（KB）
     }
 }

core/src/main/java/com/smartlibrary/factory/JournalFactory.java

@@ -2,36 +2,26 @@ package com.smartlibrary.factory;
 
 import com.smartlibrary.model.Book;
 
-import java.time.LocalDate;
-
 /**
  * 期刊工厂 - 实现工厂模式
  * 创建期刊类型的图书对象
  */
-public class JournalFactory implements BookFactory {
+public class JournalFactory extends AbstractBookFactory {
     
     @Override
-    public Book createBook(String id, String title, String author, String isbn, 
-                          String publisher, LocalDate publishDate, String category) {
-        Book book = new Book();
-        book.setId(id);
-        book.setTitle(title);
-        book.setAuthor(author);
-        book.setIsbn(isbn);
-        book.setPublisher(publisher);
-        book.setPublishDate(publishDate);
-        book.setCategory(category);
-        book.setBookType("期刊");
-        book.setAvailable(true);
-        
-        // 期刊特有属性可以在这里设置
-        System.out.println("创建期刊: " + title);
-        
-        return book;
+    public String getBookType() {
+        return "期刊";
     }
     
+    /**
+     * 期刊特有属性设置
+     */
     @Override
-    public String getBookType() {
-        return "期刊";
+    protected void customizeBook(Book book) {
+        // 期刊特有属性可以在这里设置
+        // 例如：设置期刊号、卷号、期号等
+        book.setVolume("第1卷"); // 示例：设置默认卷号
+        book.setIssue("第1期"); // 示例：设置默认期号
+        book.setIssn("ISSN-1234-5678"); // 示例：设置默认ISSN号
     }
 }

core/src/main/java/com/smartlibrary/factory/PhysicalBookFactory.java

@@ -2,36 +2,24 @@ package com.smartlibrary.factory;
 
 import com.smartlibrary.model.Book;
 
-import java.time.LocalDate;
-
 /**
  * 实体书工厂 - 实现工厂模式
  * 创建实体书类型的图书对象
  */
-public class PhysicalBookFactory implements BookFactory {
+public class PhysicalBookFactory extends AbstractBookFactory {
     
     @Override
-    public Book createBook(String id, String title, String author, String isbn, 
-                          String publisher, LocalDate publishDate, String category) {
-        Book book = new Book();
-        book.setId(id);
-        book.setTitle(title);
-        book.setAuthor(author);
-        book.setIsbn(isbn);
-        book.setPublisher(publisher);
-        book.setPublishDate(publishDate);
-        book.setCategory(category);
-        book.setBookType("实体书");
-        book.setAvailable(true);
-        
-        // 实体书特有属性可以在这里设置
-        System.out.println("创建实体书: " + title);
-        
-        return book;
+    public String getBookType() {
+        return "实体书";
     }
     
+    /**
+     * 实体书特有属性设置
+     */
     @Override
-    public String getBookType() {
-        return "实体书";
+    protected void customizeBook(Book book) {
+        // 实体书特有属性可以在这里设置
+        // 例如：设置借阅期限、物理位置等
+        book.setLocation("书架A-" + book.getCategory()); // 示例：设置默认位置
     }
 }

core/src/main/java/com/smartlibrary/model/Book.java

@@ -19,6 +19,16 @@ public class Book {
     private String qrCode;   // 二维码内容（唯一标识）
     private String location; // 馆藏位置
     private String description; // 图书描述
+    
+    // 期刊特有属性
+    private String volume; // 卷号
+    private String issue;  // 期号
+    private String issn;   // ISSN号
+    
+    // 电子书特有属性
+    private String format; // 文件格式 (PDF, EPUB等)
+    private int fileSize;  // 文件大小 (KB)
+    private String downloadUrl; // 下载链接
 
     public Book() {
         this.available = true;
@@ -150,6 +160,56 @@ public class Book {
     public void setDescription(String description) {
         this.description = description;
     }
+    
+    // 期刊特有属性的Getter和Setter
+    public String getVolume() {
+        return volume;
+    }
+    
+    public void setVolume(String volume) {
+        this.volume = volume;
+    }
+    
+    public String getIssue() {
+        return issue;
+    }
+    
+    public void setIssue(String issue) {
+        this.issue = issue;
+    }
+    
+    public String getIssn() {
+        return issn;
+    }
+    
+    public void setIssn(String issn) {
+        this.issn = issn;
+    }
+    
+    // 电子书特有属性的Getter和Setter
+    public String getFormat() {
+        return format;
+    }
+    
+    public void setFormat(String format) {
+        this.format = format;
+    }
+    
+    public int getFileSize() {
+        return fileSize;
+    }
+    
+    public void setFileSize(int fileSize) {
+        this.fileSize = fileSize;
+    }
+    
+    public String getDownloadUrl() {
+        return downloadUrl;
+    }
+    
+    public void setDownloadUrl(String downloadUrl) {
+        this.downloadUrl = downloadUrl;
+    }
 
     @Override
     public String toString() {
@@ -164,6 +224,13 @@ public class Book {
                 ", available=" + available +
                 ", bookType='" + bookType + '\'' +
                 ", qrCode='" + qrCode + '\'' +
+                ", location='" + location + '\'' +
+                ", volume='" + volume + '\'' +
+                ", issue='" + issue + '\'' +
+                ", issn='" + issn + '\'' +
+                ", format='" + format + '\'' +
+                ", fileSize=" + fileSize +
+                ", downloadUrl='" + downloadUrl + '\'' +
                 '}';
     }
 }