坦克大战java大作业

package java大作业; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.util.Vector; public class BookManage { private Vector<Book> books = new Vector<>(); public void print() { for (Book book : books) { System.out.println("书号" + book.getId() + " 作者姓名" + book.getZuozhe() + " 标题" + book.getTitle() + "出版社" + book.getChubanshe() + "定价" + book.getDignjia()); } } public void getBook(Integer id) { boolean flag = false; for (Book book : books) { if (book.getId().equals(id)) { System.out.println("书号" + book.getId() + " 作者姓名" + book.getZuozhe() + " 标题" + book.getTitle() + "出版社" + book.getChubanshe() + "定价" + book.getDignjia()); flag = true; } } if (!flag) { System.out.println("没有找到"); } } public void delBook(Integer id) { Book booka = null; boolean flag = false; for (Book book : books) { if (book.getId().equals(id)) { flag = true; booka = book; } } if (!flag) { System.out.println("没有找到Id"); } else { books.remove(booka); System.out.println("删除成功"); } } public void addBook(Book booka) { boolean flag = false; for (Book book : books) { if (book.getId().equals(booka.getId())) { flag = true; } } if (flag) { System.out.println("Id重复"); } else { books.add(booka); System.out.println("增加成功"); } } public void xuliehua() { File absoluteFile = new File( this.getClass().getClassLoader().getResource("").getPath() + File.separator + "Books") .getAbsoluteFile(); ObjectOutputStream oos = null; try { oos = new ObjectOutputStream(new FileOutputStream(absoluteFile)); // 使用 writeObject 序列化对象 oos.writeObject(books); // 刷新 oos.flush(); // 关闭流 oos.close(); } catch (IOException e) { e.printStackTrace(); } } public void fanxuliehua() { File absoluteFile = new File( BookManage.class.getClassLoader().getResource("").getPath() + File.separator + "Books") .getAbsoluteFile(); // 对象输入流 ObjectInputStream ois = null; try { ois = new ObjectInputStream(new FileInputStream(absoluteFile)); // 使用 readObject() 反序列化 books = (Vector<Book>) ois.readObject(); ois.close(); } catch (IOException | ClassNotFoundException e) { e.printStackTrace(); } } }