import java.time.LocalDate;
import java.util.*;
public class Main {
private static LibraryService libraryService = new LibraryService();
private static ScannerService scannerService = new ScannerService();
private static ExcelService excelService = new ExcelService();
private static Scanner scanner = new Scanner(System.in);
public static void main(String[] args) {
System.out.println("=== 图书管理系统启动 ===");
System.out.println("版本: 1.0 | 自动维护模式");
// 检查是否首次运行
checkFirstRun();
// 加载数据
libraryService.loadData();
boolean running = true;
while (running) {
showMainMenu();
int choice = getIntInput("请选择操作: ");
switch (choice) {
case 1:
manageBooks();
break;
case 2:
manageBorrowers();
break;
case 3:
borrowReturnBooks();
break;
case 4:
searchBooks();
break;
case 5:
importExportData();
break;
case 6:
scanBookISBN();
break;
case 7:
systemStatistics();
break;
case 0:
running = false;
System.out.println("系统退出，数据已自动保存");
break;
default:
System.out.println("无效选择，请重新输入");
}
}
scanner.close();
}
private static void checkFirstRun() {
// 检查是否为首次运行，创建必要的目录结构
String[] dirs = {"data", "config", "exports", "logs"};
for (String dir : dirs) {
File directory = new File(dir);
if (!directory.exists()) {
directory.mkdirs();
System.out.println("创建目录: " + dir);
}
}
}
private static void showMainMenu() {
System.out.println("\n===== 图书管理系统主菜单 =====");
System.out.println("1. 📚 图书管理");
System.out.println("2. 👥 借阅者管理");
System.out.println("3. 🔄 借书/还书");
System.out.println("4. 🔍 图书查询");
System.out.println("5. 📊 数据导入导出");
System.out.println("6. 📱 扫码录入图书");
System.out.println("7. 📈 系统统计");
System.out.println("0. ❌ 退出系统");
}
private static void manageBooks() {
boolean back = false;
while (!back) {
System.out.println("\n===== 图书管理 =====");
System.out.println("1. 添加图书");
System.out.println("2. 修改图书");
System.out.println("3. 删除图书");
System.out.println("4. 查看所有图书");
System.out.println("0. 返回主菜单");
int choice = getIntInput("请选择操作: ");
switch (choice) {
case 1:
addBook();
break;
case 2:
updateBook();
break;
case 3:
deleteBook();
break;
case 4:
listAllBooks();
break;
case 0:
back = true;
break;
default:
System.out.println("无效选择");
}
}
}
private static void addBook() {
System.out.println("\n--- 添加图书 ---");
System.out.print("请输入ISBN: ");
String isbn = scanner.nextLine();
// 检查是否已存在
if (libraryService.findBookByIsbn(isbn) != null) {
System.out.println("该ISBN的图书已存在！");
return;
}
System.out.print("请输入书名: ");
String title = scanner.nextLine();
System.out.print("请输入作者: ");
String author = scanner.nextLine();
System.out.print("请输入出版社: ");
String publisher = scanner.nextLine();
System.out.print("请输入出版日期 (YYYY-MM-DD): ");
String dateStr = scanner.nextLine();
System.out.print("请输入总册数: ");
int totalCopies = getIntInput("总册数: ");
Book book = new Book(isbn, title, author, publisher, LocalDate.parse(dateStr), totalCopies);
if (libraryService.addBook(book)) {
System.out.println("✅ 图书添加成功！");
} else {
System.out.println("❌ 图书添加失败！");
}
}
private static void updateBook() {
System.out.println("\n--- 修改图书 ---");
System.out.print("请输入要修改的图书ISBN: ");
String isbn = scanner.nextLine();
Book book = libraryService.findBookByIsbn(isbn);
if (book == null) {
System.out.println("❌ 未找到该ISBN的图书！");
return;
}
System.out.println("当前图书信息: " + book);
System.out.print("请输入新书名 (直接回车保持原值): ");
String newTitle = scanner.nextLine();
if (!newTitle.isEmpty()) {
book.setTitle(newTitle);
}
System.out.print("请输入新作者 (直接回车保持原值): ");
String newAuthor = scanner.nextLine();
if (!newAuthor.isEmpty()) {
book.setAuthor(newAuthor);
}
System.out.print("请输入新出版社 (直接回车保持原值): ");
String newPublisher = scanner.nextLine();
if (!newPublisher.isEmpty()) {
book.setPublisher(newPublisher);
}
System.out.print("请输入新总册数 (输入0保持原值): ");
int newTotal = getIntInput("新总册数: ");
if (newTotal > 0) {
book.setTotalCopies(newTotal);
}
if (libraryService.updateBook(book)) {
System.out.println("✅ 图书修改成功！");
} else {
System.out.println("❌ 图书修改失败！");
}
}
private static void deleteBook() {
System.out.println("\n--- 删除图书 ---");
System.out.print("请输入要删除的图书ISBN: ");
String isbn = scanner.nextLine();
Book book = libraryService.findBookByIsbn(isbn);
if (book == null) {
System.out.println("❌ 未找到该ISBN的图书！");
return;
}
System.out.println("将要删除的图书: " + book);
System.out.print("确认删除？(y/n): ");
String confirm = scanner.nextLine();
if ("y".equalsIgnoreCase(confirm)) {
if (libraryService.deleteBook(isbn)) {
System.out.println("✅ 图书删除成功！");
} else {
System.out.println("❌ 图书删除失败！");
}
}
}
private static void listAllBooks() {
System.out.println("\n--- 所有图书列表 ---");
List ListBook> books = libraryService.getAllBooks();
if (books.isEmpty()) {
System.out.println("暂无图书数据");
} else {
System.out.printf("%-15s %-30s %-20s %-15s %-10s%n",
"ISBN", "书名", "作者", "出版社", "库存");
for (Book book : books) {
System.out.printf("%-15s %-30s %-20s %-15s %-10s%n",
book.getIsbn(), book.getTitle(), book.getAuthor(), book.getPublisher(),
book.getAvailableCopies() + "/" + book.getTotalCopies());
}
}
}
private static void manageBorrowers() {
boolean back = false;
while (!back) {
System.out.println("\n===== 借阅者管理 =====");
System.out.println("1. 添加借阅者");
System.out.println("2. 查看所有借阅者");
System.out.println("0. 返回主菜单");
int choice = getIntInput("请选择操作: ");
switch (choice) {
case 1:
addBorrower();
break;
case 2:
listAllBorrowers();
break;
case 0:
back = true;
break;
default:
System.out.println("无效选择");
}
}
}
private static void addBorrower() {
System.out.println("\n--- 添加借阅者 ---");
System.out.print("请输入借阅者ID: ");
String id = scanner.nextLine();
System.out.print("请输入姓名: ");
String name = scanner.nextLine();
System.out.print("请输入电话: ");
String phone = scanner.nextLine();
System.out.print("请输入邮箱: ");
String email = scanner.nextLine();
Borrower borrower = new Borrower(id, name, phone, email);
if (libraryService.addBorrower(borrower)) {
System.out.println("✅ 借阅者添加成功！");
} else {
System.out.println("❌ 该ID的借阅者已存在！");
}
}
private static void listAllBorrowers() {
System.out.println("\n--- 所有借阅者列表 ---");
List ListBorrower> borrowers = libraryService.getAllBorrowers();
if (borrowers.isEmpty()) {
System.out.println("暂无借阅者数据");
} else {
System.out.printf("%-15s %-20s %-15s %-25s%n",
"借阅者ID", "姓名", "电话", "邮箱");
for (Borrower borrower : borrowers) {
System.out.printf("%-15s %-20s %-15s %-25s%n",
borrower.getId(), borrower.getName(), borrower.getPhone(), borrower.getEmail());
}
}
}
private static void borrowReturnBooks() {
boolean back = false;
while (!back) {
System.out.println("\n===== 借书/还书 =====");
System.out.println("1. 借书");
System.out.println("2. 还书");
System.out.println("3. 查看借阅记录");
System.out.println("0. 返回主菜单");
int choice = getIntInput("请选择操作: ");
switch (choice) {
case 1:
borrowBook();
break;
case 2:
returnBook();
break;
case 3:
listBorrowRecords();
break;
case 0:
back = true;
break;
default:
System.out.println("无效选择");
}
}
}
private static void borrowBook() {
System.out.println("\n--- 借书 ---");
System.out.print("请输入图书ISBN: ");
String isbn = scanner.nextLine();
Book book = libraryService.findBookByIsbn(isbn);
if (book == null) {
System.out.println("❌ 未找到该ISBN的图书！");
return;
}
if (book.getAvailableCopies() <= 0) {
System.out.println("❌ 该图书已无库存！");
return;
}
System.out.print("请输入借阅者ID: ");
String borrowerId = scanner.nextLine();
if (libraryService.borrowBook(isbn, borrowerId)) {
System.out.println("✅ 借书成功！");
} else {
System.out.println("❌ 借书失败！");
}
}
private static void returnBook() {
System.out.println("\n--- 还书 ---");
System.out.print("请输入借阅记录ID: ");
String recordId = scanner.nextLine();
if (libraryService.returnBook(recordId)) {
System.out.println("✅ 还书成功！");
} else {
System.out.println("❌ 还书失败，请检查记录ID！");
}
}
private static void listBorrowRecords() {
System.out.println("\n--- 借阅记录列表 ---");
List ListBorrowRecord> records = libraryService.getBorrowRecords();
if (records.isEmpty()) {
System.out.println("暂无借阅记录");
} else {
System.out.printf("%-15s %-15s %-15s %-12s %-12s %-8s%n",
"记录ID", "ISBN", "借阅者ID", "借书日期", "应还日期", "状态%n");
for (BorrowRecord record : records) {
System.out.printf("%-15s %-15s %-15s %-12s %-12s %-8s%n",
record.getRecordId(), record.getBookIsbn(), record.getBorrowerId(),
record.getBorrowDate(), record.getDueDate(), record.getStatus());
}
}
}
private static void searchBooks() {
System.out.println("\n--- 图书查询 ---");
System.out.print("请输入搜索关键词 (书名/作者/ISBN): ");
String keyword = scanner.nextLine();
List ListBook> results = libraryService.searchBooks(keyword);
if (results.isEmpty()) {
System.out.println("❌ 未找到相关图书！");
} else {
System.out.println("🔍 找到 " + results.size() + " 本相关图书：");
for (Book book : results) {
System.out.println("📖 " + book);
}
}
}
private static void importExportData() {
boolean back = false;
while (!back) {
System.out.println("\n===== 数据导入导出 =====");
System.out.println("1. 导出图书数据到Excel");
System.out.println("2. 从Excel导入图书数据");
System.out.println("0. 返回主菜单");
int choice = getIntInput("请选择操作: ");
switch (choice) {
case 1:
exportToExcel();
break;
case 2:
importFromExcel();
break;
case 0:
back = true;
break;
default:
System.out.println("无效选择");
}
}
}
private static void exportToExcel() {
System.out.print("请输入导出文件名 (例如: books_export.xlsx): ");
String fileName = scanner.nextLine();
if (excelService.exportBooksToExcel(libraryService.getAllBooks(), "exports/" + fileName);
System.out.println("✅ 数据导出成功！");
}
private static void importFromExcel() {
System.out.print("请输入要导入的Excel文件名: ");
String fileName = scanner.nextLine();
List ListBook> importedBooks = excelService.importBooksFromExcel(fileName);
System.out.println("✅ 成功导入 " + importedBooks.size() + " 本图书");
for (Book book : importedBooks) {
libraryService.addBook(book);
}
}
private static void scanBookISBN() {
System.out.println("\n--- 扫码录入图书 ---");
System.out.print("请扫描图书ISBN码: ");
String isbn = scanner.nextLine();
Book book = scannerService.scanBook(isbn);
if (book != null) {
System.out.println("📱 扫描成功！");
System.out.println("图书信息: " + book);
System.out.print("是否添加此图书？(y/n): ");
String confirm = scanner.nextLine();
if ("y".equalsIgnoreCase(confirm)) {
if (libraryService.addBook(book)) {
System.out.println("✅ 图书添加成功！");
} else {
System.out.println("❌ 图书添加失败！");
}
} else {
System.out.println("❌ 扫码失败，请检查ISBN码！");
}
}
private static void systemStatistics() {
System.out.println("\n===== 系统统计信息 =====");
int totalBooks = libraryService.getAllBooks().size();
int totalBorrowers = libraryService.getAllBorrowers().size();
int totalRecords = libraryService.getBorrowRecords().size();
System.out.println("📊 统计概览:");
System.out.println(" 📚 总图书数量: " + totalBooks);
System.out.println(" 👥 总借阅者数量: " + totalBorrowers);
System.out.println(" 🔄 总借阅记录: " + totalRecords);
// 计算借出中的图书数量
long borrowedCount = libraryService.getBorrowRecords().stream()
.filter(record -> "借出".equals(record.getStatus()))
.count();
System.out.println(" 📖 当前借出图书: " + borrowedCount);
List ListBook> books = libraryService.getAllBooks();
if (!books.isEmpty()) {
System.out.println("\n📈 热门图书排行:");
books.stream()
.sorted((b1, b2) -> Integer.compare(b2.getTotalCopies() - b2.getAvailableCopies(),
b1.getTotalCopies() - b1.getAvailableCopies()))
.limit(5)
.forEach(book -> System.out.println(" - " + book.getTitle() +
" (借出: " + (b1.getTotalCopies() - b1.getAvailableCopies() + ")"));
}
}
private static int getIntInput(String prompt) {
System.out.print(prompt);
while (!scanner.hasNextInt()) {
System.out.print("请输入有效数字: ");
scanner.next();
}
int result = scanner.nextInt();
scanner.nextLine(); // 清除换行符
return result;
}
}