使用JDBC+javafx写一个简单功能齐全的图书管理系统

本文主要是介绍使用JDBC+javafx写一个简单功能齐全的图书管理系统，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

1、JDBC的使用

2、对应包和Java文件的层级关系及对应的含义

3、数据库

4、相关代码

1）、bookmanager包

Ⅰ、main函数

Ⅱ、utils包

Ⅲ、bean包

Ⅳ、controller包

2)resources(为资源文件包，可以看链接文章了解)

Ⅰ、book包

Ⅱ、 login包

5、效果展示（对应功能实现在相应代码中）

1）、登录功能

2）、注册功能

3）、后台主页面

4）、编辑页和添加页

5）、修改密码页

6）、注销页

在文章结尾有图书管理系统的效果展示

资源已上传到csdn可以自行下载

1、JDBC的使用

后面会用到大量jdbc语句来实现数据库的增删改查，可以先简单看看下面这篇文章。

JDBC的简单使用与封装_jdbc封装_热爱编程的林兮的博客-CSDN博客

2、对应包和Java文件的层级关系及对应的含义

上面DBUtils为jdbc的封装，详情可以看jdbc的简单使用与封装，还有dp.properties文件也在这篇文章中收到，我后面就不再过多概述。

3、数据库

admin：

book：

category：

4、相关代码

1）、bookmanager包

Ⅰ、main函数

BookManagerApplication

package com.hk.sky.bookmanager;import com.hk.sky.bookmanager.bean.Admin;
import com.hk.sky.bookmanager.controller.LoginController;
import com.hk.sky.bookmanager.dao.AdminDao;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.stage.Stage;import java.io.IOException;public class BookManagerApplication extends Application {AdminDao adminDao=new AdminDao();//获取上一次用户登录的信息Admin admin=adminDao.getLast();@Overridepublic void start(Stage stage) throws IOException {//登录页面的资源文件为login/login.fxmlFXMLLoader fxmlLoader = new FXMLLoader(BookManagerApplication.class.getResource("login/login.fxml"));//设置登录窗口的长和宽Scene scene = new Scene(fxmlLoader.load(), 290, 240);stage.setTitle("管理员登录");stage.setScene(scene);LoginController loginController=fxmlLoader.getController();//如果admin不是为null，则说明上一次有用户登录，则直接在登录页面显示账号和密码if (admin!=null)loginController.set(admin.getAccount(),admin.getPassword());stage.show();}//启动public static void main(String[] args) {launch();}
}

Ⅱ、utils包

DBUtils

package com.hk.sky.bookmanager.utils;
import java.io.IOException;
import java.sql.*;
import java.util.Properties;/*** 封装数据连接，关闭的工具类*/
public class DBUtils {private static String url;private static String username;private static String password;// 读取配置文件static {Properties prop = new Properties();try {// DBUtils.class.getClassLoader().getResourceAsStream()方法可以从类路径中读取资源文件prop.load(DBUtils.class.getClassLoader().getResourceAsStream("db.properties"));// 通过key获取valueurl = prop.getProperty("jdbc.url");username = prop.getProperty("jdbc.username");password = prop.getProperty("jdbc.password");} catch (IOException e) {throw new RuntimeException(e);}}// 将创建连接的方法封装成静态方法，方便调用// 如何将url、username、password放到配置文件当中，然后读取出来public static Connection getConnection() {// 创建连接的时候，有会异常：SQLException，不建议抛出，建立捕获Connection conn = null;try {conn = DriverManager.getConnection(url,username,password);} catch (SQLException e) {e.printStackTrace();}return conn;}// 将关闭连接的方法封装成静态方法，方便调用public static void close(ResultSet rs, PreparedStatement pStmt, Connection conn) {if (rs != null) {try {rs.close();} catch (SQLException e) {e.printStackTrace();}}if (pStmt != null) {try {pStmt.close();} catch (SQLException e) {e.printStackTrace();}}if (conn != null) {try {conn.close();} catch (SQLException e) {e.printStackTrace();}}}
}

Ⅲ、bean包

Admin

package com.hk.sky.bookmanager.bean;public class Admin {//账号private String account;//密码private String password;//上一次登录private int last;public String getAccount() {return account;}public String getPassword() {return password;}public void setAccount(String account) {this.account = account;}public void setPassword(String password) {this.password = password;}public int getLast() {return last;}public void setLast(int last) {this.last = last;}@Overridepublic String toString() {return "Admin{" +"account='" + account + '\'' +", password='" + password + '\'' +", last=" + last +'}';}
}

book

package com.hk.sky.bookmanager.bean;public class Book {private int id;private String bookName;private String author;private int price;private int stock;private String publisher;private String detail;private int typeId;public void setDetail(String detail) {this.detail = detail;}public String getDetail() {return detail;}public int getId() {return id;}public String getBookName() {return bookName;}public String getAuthor() {return author;}public int getPrice() {return price;}public int getStock() {return stock;}public String getPublisher() {return publisher;}public void setId(int id) {this.id = id;}public void setBookName(String bookName) {this.bookName = bookName;}public void setAuthor(String author) {this.author = author;}public void setPrice(int price) {this.price = price;}public void setStock(int stock) {this.stock = stock;}public void setPublisher(String publisher) {this.publisher = publisher;}public void setTypeId(int typeId) {this.typeId = typeId;}public int getTypeId() {return typeId;}public Book(){}public Book(String name, String author, String publisher, int price, String detail, int stock, int typeId) {this.bookName = name;this.author = author;this.publisher = publisher;this.price = price;this.detail = detail;this.stock = stock;this.typeId = typeId;}
}

Category

package com.hk.sky.bookmanager.bean;public class Category {private int id;private String typeName;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getTypeName() {return typeName;}public void setTypeName(String typeName) {this.typeName = typeName;}@Overridepublic String toString() {return typeName;}
}

Ⅳ、controller包

AddController

package com.hk.sky.bookmanager.controller;import com.hk.sky.bookmanager.bean.Book;
import com.hk.sky.bookmanager.bean.Category;
import com.hk.sky.bookmanager.dao.BookDao;
import com.hk.sky.bookmanager.dao.CategoryDao;
import javafx.application.Platform;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.*;
import javafx.stage.Stage;import java.net.URL;
import java.sql.SQLException;
import java.util.*;public class AddController implements Initializable {@FXMLpublic Button add;@FXMLpublic Button edit;@FXMLprivate ComboBox<Category> categoryComboBox;private ObservableList<Category> observableList = FXCollections.observableArrayList();private CategoryDao categoryDao = new CategoryDao();private BookDao bookDao = new BookDao();@FXMLprivate TextField bookName;@FXMLprivate TextField bookAuthor;@FXMLprivate TextField bookPublisher;@FXMLprivate TextField bookPrice;@FXMLprivate TextField detail;@FXMLprivate TextField bookStock;public Book book;public void setBook(Book book) {this.book = book;}//B用来判断是添加书籍还是编辑书籍public boolean B;public void setB(boolean i){this.B=i;}@Overridepublic void initialize(URL url, ResourceBundle resourceBundle) {Platform.runLater(() -> {// 页面第一次加载的时候，就显示下拉列表observableList.clear();List<Category> categories = categoryDao.getAllCategories();observableList.addAll(categories);categoryComboBox.setItems(observableList);//添加书籍  修改书籍if (B){add.setVisible(true);add.setText("添加");edit.setVisible(false);edit.setText("");categoryComboBox.setValue(categories.get(0));}else {bookName.setText(book.getBookName());bookAuthor.setText(book.getAuthor());bookPublisher.setText(book.getPublisher());bookPrice.setText(String.valueOf(book.getPrice()));detail.setText(book.getDetail());bookStock.setText(String.valueOf(book.getStock()));categoryComboBox.setValue(categories.get(book.getTypeId()));edit.setVisible(true);edit.setText("修改");add.setDisable(false);add.setText("");}});}//给添加按钮设置点击事件public void addBook() throws SQLException {// 用户点击添加按钮时，获取所有的数据，并插入到数据库当中String name = bookName.getText();String author = bookAuthor.getText();String publisher = bookPublisher.getText();String detail1 = detail.getText();// 将格式进行转换// 表单验证，判断用户是否输入内容if (name.equals("") || author.equals("") || publisher.equals("") || detail1.equals("") ||bookPrice.getText().equals("") || bookStock.getText().equals("")) {Alert error = new Alert(Alert.AlertType.ERROR, "输入错误");Button err = new Button();error.setTitle("您的书籍信息输入错误！");error.setHeaderText("请正确填写所要添加书籍的信息！");err.setOnAction((ActionEvent e) -> {error.showAndWait();});Optional<ButtonType> result = error.showAndWait();} else if (!bookPrice.getText().matches("[1-9]+[0-9]*")||!bookStock.getText().matches("[1-9]+[0-9]*")){Alert error = new Alert(Alert.AlertType.ERROR, "输入错误");Button err = new Button();error.setTitle("您的书籍信息输入错误！");error.setHeaderText("库存和价格必须为整数！");err.setOnAction((ActionEvent e) -> {error.showAndWait();});Optional<ButtonType> result = error.showAndWait();}else{// 思路：将上面获取到的数据封装成book，然后插入到数据库当中// 但是仔细思考，我们会碰到一个难点：如何获取ComboBox的选项？也就是说如何知道用户选的是哪一个类型的书籍？Category selectedCategory = categoryComboBox.getValue();int price = Integer.parseInt(bookPrice.getText());int stock = Integer.parseInt(bookStock.getText());// 将所有的数据封装成书籍Book book = new Book(name, author, publisher, price, detail1, stock, selectedCategory.getId());// 调用BookDao中的方法将数据插入到数据库当中Alert information = new Alert(Alert.AlertType.INFORMATION, "恭喜您书籍添加成功");Button err = new Button();information.setTitle("添加成功！");information.setHeaderText("林氏图书馆又收录了一本新书，感谢！");err.setOnAction((ActionEvent e) -> {information.showAndWait();});Optional<ButtonType> result = information.showAndWait();// 插入成功之后，首先当前属性应该关闭if (bookDao.insertBook(book)){((Stage) bookName.getScene().getWindow()).close();}}}//给编辑按钮设置点击事件public void editBook(ActionEvent actionEvent) throws SQLException{// 用户点击添加按钮时 ，获取所有的数据，并插入到数据库当中String name = bookName.getText();String author = bookAuthor.getText();String publisher = bookPublisher.getText();String detail1 = detail.getText();// 将格式进行转换// 表单验证，判断用户是否输入内容if (name.equals("")||author.equals("")||publisher.equals("")||detail1.equals("")||bookPrice.getText().equals("")||bookStock.getText().equals("")){Alert error=new Alert(Alert.AlertType.ERROR,"输入错误");Button err=new Button();error.setTitle("您的书籍信息输入错误！");error.setHeaderText("请正确填写所要修改书籍的信息！");err.setOnAction((ActionEvent e)->{error.showAndWait();});Optional<ButtonType> result = error.showAndWait();}else if (!bookPrice.getText().matches("[1-9]+[0-9]*")||!bookStock.getText().matches("[1-9]+[0-9]*")){Alert error = new Alert(Alert.AlertType.ERROR, "输入错误");Button err = new Button();error.setTitle("您的书籍信息输入错误！");error.setHeaderText("库存和价格必须为整数！");err.setOnAction((ActionEvent e) -> {error.showAndWait();});Optional<ButtonType> result = error.showAndWait();}else {int price = Integer.parseInt(bookPrice.getText());int stock = Integer.parseInt(bookStock.getText());// 思路：将上面获取到的数据封装成book，然后插入到数据库当中// 但是仔细思考，我们会碰到一个难点：如何获取ComboBox的选项？也就是说如何知道用户选的是哪一个类型的书籍？Category selectedCategory = categoryComboBox.getValue();// 将所有的数据封装成书籍Book book1 = new Book(name, author, publisher, price, detail1, stock, selectedCategory.getId());book1.setId(book.getId());// 调用BookDao中的方法将数据插入到数据库当中Alert information=new Alert(Alert.AlertType.INFORMATION,"恭喜您书籍信息修改成功");Button err=new Button();information.setTitle("修改成功！");information.setHeaderText("谢谢您为林氏图书馆添砖加瓦，感谢！");err.setOnAction((ActionEvent e)->{information.showAndWait();});Optional<ButtonType> result = information.showAndWait();boolean success = bookDao.updateBook(book1);// 插入成功之后，首先当前属性应该关闭if (success) {((Stage)bookName.getScene().getWindow()).close();}}}
}

EnrollController

package com.hk.sky.bookmanager.controller;import com.hk.sky.bookmanager.bean.Admin;
import com.hk.sky.bookmanager.dao.AdminDao;
import com.hk.sky.bookmanager.utils.DBUtils;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.*;
import javafx.scene.text.Text;
import javafx.stage.Stage;import java.sql.Connection;
import java.sql.SQLException;
import java.util.Objects;
import java.util.Optional;public class EnrollController {@FXMLpublic TextField username1;@FXMLpublic PasswordField password1;@FXMLpublic Text errorMsg;//提示错误信息@FXMLprivate Button alert;@FXMLprivate Button enroll;@FXMLpublic Text title;AdminDao adminDao=new AdminDao();//给注册按钮设置点击事件public void enrollBtn() {String account=username1.getText();String pw=password1.getText();if (Objects.equals(account, "")){errorMsg.setText("请填写用户名");}else if (Objects.equals(pw, "")){errorMsg.setText("请填写密码");}else {boolean b=adminDao.enroll(account,pw);if(!b){errorMsg.setText("用户名已使用，请更改用户名！");}else {Alert information=new Alert(Alert.AlertType.INFORMATION,"恭喜"+account+"用户注册成功");Button err=new Button();information.setTitle("注册成功！");information.setHeaderText("林氏图书馆欢迎您的到来！");err.setOnAction((ActionEvent e)->{information.showAndWait();});Optional<ButtonType> result = information.showAndWait();// 关闭当前Stage，问题：如何获取当前的stage?Stage currentWindow = (Stage)username1.getScene().getWindow();currentWindow.close();}}}//区分是注册还是修改密码，修改密码的话账号无法更改，输入框为不可选择，注册按钮消失，修改按钮显示public void qf(boolean b){if (b){enroll.setVisible(false);alert.setVisible(true);username1.setDisable(true);}}//s用来保存原密码，修改密码无法更改为原密码public String s;public void setS(String ss){s=ss;}//给修改密码设置点击事件public void alertBtn() throws SQLException {if (password1.getText().equals("")){errorMsg.setText("密码不能为空");}else if(password1.getText().equals(s)){errorMsg.setText("不能与最近使用密码相同");}else {Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "你是否真的要修改该密码?");alert.setTitle("修改密码");alert.setHeaderText("确认修改?");Optional<ButtonType> result = alert.showAndWait();if (result.isPresent()){adminDao.alertPassword(username1.getText(),password1.getText());Alert information = new Alert(Alert.AlertType.INFORMATION, "恭喜您修改密码成功!");Button err = new Button();information.setTitle("修改密码");information.setHeaderText("修改密码成功!");err.setOnAction((ActionEvent e) -> {information.showAndWait();});Optional<ButtonType> rs = information.showAndWait();}}}
}

HouTaiController

package com.hk.sky.bookmanager.controller;import com.hk.sky.bookmanager.BookManagerApplication;
import com.hk.sky.bookmanager.bean.Admin;
import com.hk.sky.bookmanager.bean.Book;
import com.hk.sky.bookmanager.dao.AdminDao;
import com.hk.sky.bookmanager.dao.BookDao;
import javafx.application.Platform;
import javafx.beans.property.ReadOnlyObjectWrapper;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.text.Text;
import javafx.stage.Stage;import java.io.IOException;
import java.net.URL;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.ResourceBundle;public class HouTaiController implements Initializable {/*搜索框*/public TextField search;/*下拉框*/public ComboBox categorySelect;// 不能直接从这里查询用户信息，因为在当前这个类当中，我不知道是谁登录了// 通过上一个类传递到当前类当中，我们需要在当前类中定义要传递的数据，然后通过set方法设置该属性的值private Admin admin;public String bookName;public String bookAuthor;public String Publish;//表示查询到的行public int sumPage;//n表示页数public int n;public void setAdmin(Admin admin) {this.admin = admin;}public void setSumPage(int i){this.sumPage=i;double j=i/9.0;n=(int) Math.ceil(j);}public void setBookName(String s){bookName=s;}@FXMLprivate Text welcomeMsg;@FXMLprivate Text searchCount;@FXMLprivate Text searchPage;@FXML//返回按钮private Button fh;//给表添加数据@FXMLprivate TableView<Book> bookTable;// 准备表格中的数据private ObservableList<Book> data = FXCollections.observableArrayList();// 准备dao类，它负责到数据库中查询private BookDao bookDao = new BookDao();private AdminDao adminDao=new AdminDao();//添加按钮操作// 编辑按钮private TableColumn<Book, Integer> editColumn = new TableColumn<>("编辑");// 删除按钮private TableColumn<Book, Integer> delColumn = new TableColumn<>("删除");// 详情按钮private TableColumn<Book, Integer> detailColumn = new TableColumn<>("详情");// 上一个页面中将admin传递过来，我们需要在当前窗口中来获取传递过来的数据，然后将值设置给页面中的元素显示// 将当前类实现Initializable接口，然后在initialize（初始化）方法中获取设置的值，然后设置给页面中的元素@Overridepublic void initialize(URL url, ResourceBundle resourceBundle) {// 通过UI线程获取值，并设置值Platform.runLater(() -> {welcomeMsg.setText("欢迎" + admin.getAccount() + "管理员登录！");searchCount.setText("共"+sumPage+"条记录");categorySelect.getItems().addAll("书名","出版社","作者");categorySelect.setValue("书名");// 查询数据库，设置ObservableList，并添加至tableView当中List<Book> books = bookDao.set(search.getText(),0);data.addAll(books);bookTable.setItems(data);//1、添加编辑按钮editColumn.setCellValueFactory(param -> new ReadOnlyObjectWrapper<>(param.getValue().getId()));editColumn.setCellFactory(param -> new TableCell<>(){final Button editBtn = new Button("编辑");@Overrideprotected void updateItem(Integer item, boolean empty) {super.updateItem(item, empty);if (item == null) {setGraphic(null);return;}setGraphic(editBtn);// 添加点击事件editBtn.setOnMouseClicked(event ->{try {Stage newStage = new Stage();FXMLLoader fxmlLoader = new FXMLLoader(BookManagerApplication.class.getResource("book/add.fxml"));Scene scene = new Scene(fxmlLoader.load(), 280, 400);newStage.setTitle("编辑书籍");newStage.setScene(scene);AddController addController=fxmlLoader.getController();addController.setB(false);addController.setBook(bookDao.getbookById(item));newStage.show();// 我们需要监听添加页面关闭后，刷新tableview// CloseRequest()只有在用户点击右上角的叉时才会触发newStage.setOnHiding(evt->{refreshTableView(i);});} catch (IOException e) {throw new RuntimeException(e);}});}});//将列添加至表中bookTable.getColumns().add(editColumn);//2、添加删除按钮delColumn.setCellValueFactory(param -> new ReadOnlyObjectWrapper<>(param.getValue().getId()));delColumn.setCellFactory(param -> new TableCell<>(){// 创建删除按钮final Button editBtn = new Button("删除");@Overrideprotected void updateItem(Integer item, boolean empty) {super.updateItem(item, empty);if (item == null) {setGraphic(null);return;}setGraphic(editBtn);// 添加点击事件editBtn.setOnMouseClicked(event -> {// 添加一个对话框，判断用户是否需要真的删除Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "你是否需要真的删除这本吗?");alert.setTitle("警告");alert.setHeaderText("确认删除?");Optional<ButtonType> result = alert.showAndWait();if (result.isPresent() && result.get() == ButtonType.OK) {// 实现删除功能bookDao.deleteBookById(item);// 刷新页面refreshTableView(i);}});}});//将列添加至表中bookTable.getColumns().add(delColumn);// 3、添加详情按钮detailColumn.setCellValueFactory(param -> new ReadOnlyObjectWrapper<>(param.getValue().getId()));detailColumn.setCellFactory(param -> new TableCell<>(){// 创建详情按钮final Button editBtn = new Button("详情");@Overrideprotected void updateItem (Integer item,boolean empty){super.updateItem(item, empty);if (item == null) {setGraphic(null);return;}setGraphic(editBtn);// 添加点击事件editBtn.setOnMouseClicked(event -> {try {Stage newStage = new Stage();FXMLLoader fxmlLoader = new FXMLLoader(BookManagerApplication.class.getResource("book/show.fxml"));Scene scene = new Scene(fxmlLoader.load(), 280, 270);newStage.setTitle("书籍详情");newStage.setScene(scene);// 将当前书籍id传递到下一个页面当中ShowController showController = fxmlLoader.getController();showController.setBook(bookDao.getbookById(item));// 显示要打开的Stage,stage.show()newStage.show();} catch (IOException e) {throw new RuntimeException(e);}});//将列添加至表中}});bookTable.getColumns().add(detailColumn);});}public void refreshTableView(int i){// 在往集合中添加数据之前，先清空集合data.clear();List<Book> books = null;// 查询数据库，设置ObservableList，并添加至tableView当中if(categorySelect.getValue().equals("作者")&&bookAuthor!=null) {setSumPage(bookDao.likeSumCountByAuthor(search.getText()));if (i==n)i--;books= bookDao.setByAuthor(bookAuthor, i);searchCount.setText("共"+bookDao.likeSumCountByAuthor(search.getText())+"条记录");}else if (categorySelect.getValue().equals("出版社")&&Publish!=null){setSumPage(bookDao.likeSumCountByPublish(search.getText()));if (i==n)i--;books= bookDao.setByPublish(Publish, i);searchCount.setText("共"+bookDao.likeSumCountByPublish(search.getText())+"条记录");}else {setSumPage(bookDao.likeSumCount(search.getText()));if (i==n)i--;books= bookDao.set(bookName, i);searchCount.setText("共"+bookDao.likeSumCount(search.getText())+"条记录");}data.addAll(books);bookTable.setItems(data);int z=i+1;searchPage.setText("第"+z+"页");}int i=0;//首页按钮public void start(){if (i!=0){data.clear();List<Book> books=null;// 查询数据库，设置ObservableList，并添加至tableView当中if (categorySelect.getValue().equals("出版社")&&Publish!=null){books=bookDao.setByPublish(Publish,0);}else if (categorySelect.getValue().equals("作者")&&bookAuthor!=null){books=bookDao.setByAuthor(bookAuthor,0);}else {books= bookDao.set(bookName,0);}data.addAll(books);bookTable.setItems(data);i=0;searchPage.setText("第"+1+"页");}}//尾页按钮public void end(){if (i!=n-1){data.clear();List<Book> books=null;// 查询数据库，设置ObservableList，并添加至tableView当中// 查询数据库，设置ObservableList，并添加至tableView当中if (categorySelect.getValue().equals("出版社")&&Publish!=null){books=bookDao.setByPublish(Publish,n-1);}else if (categorySelect.getValue().equals("作者")&&bookAuthor!=null){books=bookDao.setByAuthor(bookAuthor,n-1);}else {books= bookDao.set(bookName,n-1);}data.addAll(books);bookTable.setItems(data);i=n-1;searchPage.setText("第"+n+"页");}}//上一页按钮public void up(){if (i>0&&i<=n-1){data.clear();// 查询数据库，设置ObservableList，并添加至tableView当中List<Book> books=null;// 查询数据库，设置ObservableList，并添加至tableView当中if (categorySelect.getValue().equals("出版社")&&Publish!=null){books=bookDao.setByPublish(Publish,--i);}else if (categorySelect.getValue().equals("作者")&&bookAuthor!=null){books=bookDao.setByAuthor(bookAuthor,--i);}else {books= bookDao.set(bookName,--i);}data.addAll(books);bookTable.setItems(data);int z=i+1;searchPage.setText("第"+z+"页");}}//下一页按钮public void next(){if (i<n-1&&i>=0){data.clear();// 查询数据库，设置ObservableList，并添加至tableView当中List<Book> books=null;// 查询数据库，设置ObservableList，并添加至tableView当中if (categorySelect.getValue().equals("出版社")&&Publish!=null){books=bookDao.setByPublish(Publish,++i);}else if (categorySelect.getValue().equals("作者")&&bookAuthor!=null){books=bookDao.setByAuthor(bookAuthor,++i);}else {books= bookDao.set(bookName,++i);}data.addAll(books);bookTable.setItems(data);int z=i+1;searchPage.setText("第"+z+"页");}}//搜索按钮public void searchBtn() throws IOException {if (categorySelect.getValue().equals("书名")){if (!Objects.equals(search.getText(), "")){if (bookDao.likeSumCount(search.getText())==0){Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "抱歉，为查找到有关该图书！");alert.setTitle("查找错误");alert.setHeaderText("请重新填写所要查找书籍的名称！");Optional<ButtonType> result = alert.showAndWait();}else {fh.setVisible(true);bookName=search.getText();// 在往集合中添加数据之前，先清空集合data.clear();// 查询数据库，设置ObservableList，并添加至tableView当中List<Book> books = bookDao.set(bookName,0);data.addAll(books);bookTable.setItems(data);setSumPage(bookDao.likeSumCount(bookName));searchCount.setText("共"+bookDao.likeSumCount(search.getText())+"条记录");i=0;searchPage.setText("第"+1+"页");}}else {Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "错误，搜索框中未输入查询数据！");alert.setTitle("输入错误");alert.setHeaderText("请填写所要查找书籍的名称，书籍名不能为空！");Optional<ButtonType> result = alert.showAndWait();}}else if (categorySelect.getValue().equals("作者")){if (!Objects.equals(search.getText(), "")){if (bookDao.likeSumCountByAuthor(search.getText())==0){Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "抱歉，未查找到有关该图书！");alert.setTitle("查找错误");alert.setHeaderText("请重新填写所要查找书籍的作者！");Optional<ButtonType> result = alert.showAndWait();}else {fh.setVisible(true);bookAuthor=search.getText();// 在往集合中添加数据之前，先清空集合data.clear();// 查询数据库，设置ObservableList，并添加至tableView当中List<Book> books = bookDao.setByAuthor(bookAuthor,0);data.addAll(books);bookTable.setItems(data);setSumPage(bookDao.likeSumCountByAuthor(bookAuthor));searchCount.setText("共"+bookDao.likeSumCountByAuthor(bookAuthor)+"条记录");i=0;searchPage.setText("第"+1+"页");}}else {Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "错误，搜索框中未输入查询数据！");alert.setTitle("输入错误");alert.setHeaderText("请填写所要查找书籍的作者，作者名不能为空！");Optional<ButtonType> result = alert.showAndWait();}}else {if (!Objects.equals(search.getText(), "")){if (bookDao.likeSumCountByPublish(search.getText())==0){Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "抱歉，未查找到有关该图书！");alert.setTitle("查找错误");alert.setHeaderText("请重新填写所要查找书籍的出版社！");Optional<ButtonType> result = alert.showAndWait();}else {fh.setVisible(true);Publish=search.getText();// 在往集合中添加数据之前，先清空集合data.clear();// 查询数据库，设置ObservableList，并添加至tableView当中List<Book> books = bookDao.setByPublish(Publish,0);data.addAll(books);bookTable.setItems(data);setSumPage(bookDao.likeSumCountByPublish(Publish));searchCount.setText("共"+bookDao.likeSumCountByPublish(Publish)+"条记录");i=0;searchPage.setText("第"+1+"页");}}else {Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "错误，搜索框中未输入查询数据！");alert.setTitle("输入错误");alert.setHeaderText("请填写所要查找书籍的出版社，出版社名不能为空！");Optional<ButtonType> result = alert.showAndWait();}}}//删除按钮public void deleteBtn() {Book book1=null;String bookName=search.getText();book1=bookDao.getBookByBookName(bookName);if (book1!=null){// 添加一个对话框，判断用户是否需要真的删除Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "你是否需要真的删除这本书吗?");alert.setTitle("警告");alert.setHeaderText("确认删除?");Optional<ButtonType> result = alert.showAndWait();if (result.isPresent() && result.get() == ButtonType.OK) {// 实现删除功能bookDao.deleteBookByBookName(bookName);// 刷新页面refreshTableView(i);}}else {// 添加一个对话框，告诉用户没有这本书Alert error=new Alert(Alert.AlertType.ERROR,"删除错误，该图书馆未收录此书！");Button err=new Button();error.setTitle("删除错误！");error.setHeaderText("请重新填写要删除的书籍！");err.setOnAction((ActionEvent e)->{error.showAndWait();});Optional<ButtonType> result = error.showAndWait();}}//添加按钮public void addBtn()  {try {Stage newStage = new Stage();FXMLLoader fxmlLoader = new FXMLLoader(BookManagerApplication.class.getResource("book/add.fxml"));Scene scene = new Scene(fxmlLoader.load(), 280, 400);newStage.setTitle("添加书籍");newStage.setScene(scene);AddController addController=fxmlLoader.getController();addController.setB(true);newStage.show();// 我们需要监听添加页面关闭后，刷新tableview// CloseRequest()只有在用户点击右上角的叉时才会触发newStage.setOnHiding(event -> {refreshTableView(i);});} catch (IOException e) {throw new RuntimeException(e);}}//返回按钮public void back(ActionEvent actionEvent) {categorySelect.setValue("书名");search.setText("");bookName=search.getText();// 在往集合中添加数据之前，先清空集合data.clear();// 查询数据库，设置ObservableList，并添加至tableView当中List<Book> books = bookDao.set(bookName,0);data.addAll(books);bookTable.setItems(data);setSumPage(bookDao.likeSumCount(bookName));searchCount.setText("共"+bookDao.likeSumCount(search.getText())+"条记录");i=0;searchPage.setText("第"+1+"页");fh.setVisible(false);}//注销按钮public void zx(ActionEvent actionEvent) throws IOException {Alert alert = new Alert(Alert.AlertType.CONFIRMATION, "你是否真的要注销该账号?");alert.setTitle("警告");alert.setHeaderText("确认注销?");Optional<ButtonType> result = alert.showAndWait();if (result.isPresent() && result.get() == ButtonType.OK) {adminDao.delete(admin.getAccount());//提醒用户该账号已注销，请重新登录Alert information = new Alert(Alert.AlertType.INFORMATION, "该账号已注销！");Button err = new Button();information.setTitle("登录失败！");information.setHeaderText("该账号已注销，请重新登录");err.setOnAction((ActionEvent e) -> {information.showAndWait();});Optional<ButtonType> result1 = information.showAndWait();//关闭 后台 页面Stage currentWindow = (Stage)search.getScene().getWindow();currentWindow.close();//重新显示登录页面Stage stage = new Stage();FXMLLoader fxmlLoader = new FXMLLoader(BookManagerApplication.class.getResource("login/login.fxml"));Scene scene = new Scene(fxmlLoader.load(), 290, 240);stage.setTitle("用户登录");stage.setScene(scene);stage.show();}}//修改密码public void xgmm(ActionEvent actionEvent) throws IOException {Stage stage = new Stage();FXMLLoader fxmlLoader = new FXMLLoader(BookManagerApplication.class.getResource("login/enroll.fxml"));Scene scene = new Scene(fxmlLoader.load(), 290, 251);stage.setTitle("修改密码");stage.setScene(scene);EnrollController enrollController=fxmlLoader.getController();enrollController.username1.setText(admin.getAccount());enrollController.password1.setText(admin.getPassword());String s=admin.getPassword();enrollController.title.setText("修改密码");enrollController.setS(admin.getPassword());enrollController.qf(true);stage.show();//添加监听事件，检查密码是否更换stage.setOnHiding(evt -> {try {if (adminDao.checkPassword(admin.getAccount(),s)){Alert information = new Alert(Alert.AlertType.INFORMATION, "该账号已注销！");Button err = new Button();information.setTitle("登录失败！");information.setHeaderText("该账号已注销，请重新登录");err.setOnAction((ActionEvent e) -> {information.showAndWait();});Optional<ButtonType> result1 = information.showAndWait();//关闭 后台 页面Stage currentWindow = (Stage)search.getScene().getWindow();currentWindow.close();//重新显示登录页面Stage stage1 = new Stage();FXMLLoader fxmlLoader1 = new FXMLLoader(BookManagerApplication.class.getResource("login/login.fxml"));Scene scene1 = new Scene(fxmlLoader1.load(), 290, 240);stage1.setTitle("用户登录");stage1.setScene(scene1);LoginController loginController=fxmlLoader1.getController();loginController.username.setText(admin.getAccount());stage1.show();adminDao.reset();}} catch (IOException e) {throw new RuntimeException(e);}});}
}

LoginController

package com.hk.sky.bookmanager.controller;import com.hk.sky.bookmanager.BookManagerApplication;
import com.hk.sky.bookmanager.bean.Admin;
import com.hk.sky.bookmanager.dao.AdminDao;
import com.hk.sky.bookmanager.dao.BookDao;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.scene.text.Text;
import javafx.stage.Stage;import java.io.IOException;public class LoginController {@FXMLpublic TextField username;@FXMLprivate PasswordField password;@FXMLprivate Text errorMsg;//设置上一次登录账号的账号密码public void set(String un,String pw){if (un!=null&&pw!=null){username.setText(un);password.setText(pw);}}@FXML//登录按钮 检查是否有该账号以及账号密码的正确性public void checkLogin() throws IOException {// 获取输入框中的内容String uname = username.getText();String pwd = password.getText();// 判断用户名与密码AdminDao adminDao = new AdminDao();Admin admin = adminDao.checkLogin(uname, pwd);if (admin == null) {errorMsg.setText("用户名或者密码错误");} else {// 跳转到后面页面// 创建要打开的Stage，问题：stage如何创建？Stage newStage = new Stage();FXMLLoader fxmlLoader = new FXMLLoader(BookManagerApplication.class.getResource("book/houtai.fxml"));Scene scene = new Scene(fxmlLoader.load(), 700, 430);newStage.setTitle("后台页面");newStage.setScene(scene);// 关闭当前Stage，问题：如何获取当前的stage?Stage currentWindow = (Stage) username.getScene().getWindow();currentWindow.close();//消除上次用户登录的信息adminDao.reset();//保存这次用户登录的信息adminDao.setLast(username.getText());// 将当前用户的信息传递到下一个页面当中HouTaiController houTaiController = fxmlLoader.getController();BookDao bookdao=new BookDao();houTaiController.setSumPage(bookdao.sumPage());houTaiController.setAdmin(admin);houTaiController.setBookName("");// 显示要打开的Stage,stage.show()newStage.show();}}//注册按钮public void enrollLogin() throws IOException{Stage stage = new Stage();FXMLLoader fxmlLoader = new FXMLLoader(BookManagerApplication.class.getResource("login/enroll.fxml"));Scene scene = new Scene(fxmlLoader.load(), 290, 251);stage.setTitle("用户注册");stage.setScene(scene);stage.show();}
}

ShowController

package com.hk.sky.bookmanager.controller;import com.hk.sky.bookmanager.bean.Book;
import com.hk.sky.bookmanager.dao.BookDao;
import javafx.application.Platform;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.text.Text;import java.net.URL;
import java.util.ResourceBundle;public class ShowController implements Initializable {@FXMLpublic Text bookId;Book book=null;public void setBook(Book book1){this.book=book1;}private BookDao bookDao = new BookDao();@FXMLprivate Text bookName;@FXMLprivate Text bookAuthor;@FXMLprivate Text bookPublish;@FXMLprivate Text bookPrice;@FXMLprivate Text bookStock;@FXMLprivate Text bookDetail;//书籍详情页面显示@Overridepublic void initialize(URL url, ResourceBundle resourceBundle) {Platform.runLater(() -> {bookId.setText(String.valueOf(book.getId()));bookName.setText(book.getBookName());bookAuthor.setText(book.getAuthor());bookPublish.setText(book.getPublisher());bookPrice.setText(String.valueOf(book.getPrice()));bookStock.setText(String.valueOf(book.getStock()));bookDetail.setText(book.getDetail());});}
}

module-info

module com.example.bookmange {requires javafx.controls;requires javafx.fxml;requires javafx.web;requires org.controlsfx.controls;requires validatorfx;requires org.kordamp.ikonli.javafx;requires org.kordamp.bootstrapfx.core;requires eu.hansolo.tilesfx;requires java.sql;opens com.hk.sky.bookmanager to javafx.fxml;exports com.hk.sky.bookmanager;exports com.hk.sky.bookmanager.controller;opens com.hk.sky.bookmanager.controller to javafx.fxml;opens com.hk.sky.bookmanager.bean to javafx.base;
}

2)resources(为资源文件包，可以看链接文章了解)

Ⅰ、book包

add.fxml

<?xml version="1.0" encoding="UTF-8"?><?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?><?import javafx.geometry.Insets?>
<?import javafx.scene.text.Text?>
<?import java.net.URL?>
<GridPane xmlns="http://javafx.com/javafx"xmlns:fx="http://javafx.com/fxml"fx:controller="com.hk.sky.bookmanager.controller.AddController"prefHeight="400.0" prefWidth="600.0" hgap="20" vgap="20"><padding><Insets left="20" top="30"/></padding><Text text="类型：" GridPane.rowIndex="0" GridPane.columnIndex="0"/><ComboBox  GridPane.halignment="CENTER" GridPane.rowIndex="0" GridPane.columnIndex="1" fx:id="categoryComboBox"></ComboBox><Text text="书名：" GridPane.rowIndex="1" GridPane.columnIndex="0"/><TextField fx:id="bookName" GridPane.rowIndex="1" GridPane.columnIndex="1"/><Text text="作者：" GridPane.rowIndex="2" GridPane.columnIndex="0"/><TextField fx:id="bookAuthor" GridPane.rowIndex="2" GridPane.columnIndex="1"/><Text text="出版社：" GridPane.rowIndex="3" GridPane.columnIndex="0"/><TextField fx:id="bookPublisher" GridPane.rowIndex="3" GridPane.columnIndex="1"/><Text text="价格：" GridPane.rowIndex="4" GridPane.columnIndex="0"/><TextField fx:id="bookPrice" GridPane.rowIndex="4" GridPane.columnIndex="1"/><Text text="内容简介：" GridPane.rowIndex="5" GridPane.columnIndex="0"/><TextField fx:id="detail" GridPane.rowIndex="5" GridPane.columnIndex="1"/><Text text="库存：" GridPane.rowIndex="6" GridPane.columnIndex="0"/><TextField fx:id="bookStock" GridPane.rowIndex="6" GridPane.columnIndex="1"/><Button fx:id="add" text="添加" onAction="#addBook" GridPane.rowIndex="7" GridPane.columnIndex="0" GridPane.columnSpan="2"GridPane.halignment="CENTER" styleClass="aBtn" visible="true" > </Button><Button fx:id="edit" onAction="#editBook" GridPane.rowIndex="7" GridPane.columnIndex="0" GridPane.columnSpan="2"GridPane.halignment="CENTER" styleClass="eBtn" visible="false"> </Button><stylesheets><URL value="@add.css"/></stylesheets></GridPane>

houtai.fxml

<?xml version="1.0" encoding="UTF-8"?><?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?><?import javafx.scene.text.Text?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.cell.PropertyValueFactory?>
<?import java.net.URL?>
<AnchorPane xmlns="http://javafx.com/javafx"xmlns:fx="http://javafx.com/fxml"fx:controller="com.hk.sky.bookmanager.controller.HouTaiController"prefHeight="550.0" prefWidth="580.0" styleClass="ht"><Button fx:id="fh" text="返回" visible="false" onAction="#back"/><Text id="wm" fx:id="welcomeMsg" AnchorPane.leftAnchor="290" AnchorPane.topAnchor="10"/><Button  text="修改密码"  onAction="#xgmm" AnchorPane.leftAnchor="585"/><Button  text="注销"  onAction="#zx" AnchorPane.leftAnchor="658"/><HBox AnchorPane.leftAnchor="180" AnchorPane.topAnchor="35"><ComboBox    fx:id="categorySelect"></ComboBox><TextField fx:id="search"><HBox.margin><Insets left="10" /></HBox.margin></TextField><Button text="查询" onAction="#searchBtn"><HBox.margin><Insets left="10" right="10"/></HBox.margin></Button><Button text="删除" onAction="#deleteBtn"><HBox.margin><Insets right="10"/></HBox.margin></Button><Button text="添加" onAction="#addBtn"></Button></HBox><TableView styleClass="table-view"fx:id="bookTable" AnchorPane.leftAnchor="10" AnchorPane.topAnchor="70" prefHeight="287" prefWidth="680"><columns><TableColumn text="编号" prefWidth="40"><cellValueFactory><PropertyValueFactory property="id"/></cellValueFactory></TableColumn><TableColumn text="书名"  prefWidth="100"><cellValueFactory><PropertyValueFactory property="bookName"/></cellValueFactory></TableColumn><TableColumn text="作者"><cellValueFactory><PropertyValueFactory property="author"/></cellValueFactory></TableColumn><TableColumn text="价格"><cellValueFactory><PropertyValueFactory property="price"/></cellValueFactory></TableColumn><TableColumn text="库存"><cellValueFactory><PropertyValueFactory property="stock"/></cellValueFactory></TableColumn><TableColumn text="出版社" prefWidth="130"><cellValueFactory><PropertyValueFactory property="publisher"/></cellValueFactory></TableColumn></columns></TableView><FlowPane AnchorPane.leftAnchor="150" AnchorPane.bottomAnchor="20" hgap="20" alignment="CENTER"><Text fx:id="searchCount"/><Text fx:id="searchPage" text="第1页"/><Button onAction="#start" text="首页"/><Button onAction="#up" text="上一页"/><Button onAction="#next" text="下一页"/><Button onAction="#end" text="尾页"/></FlowPane><stylesheets><URL value="@houtai.css"/></stylesheets>
</AnchorPane>

show.fxml

<?xml version="1.0" encoding="UTF-8"?><?import javafx.scene.layout.*?><?import javafx.scene.image.ImageView?>
<?import javafx.scene.image.Image?>
<?import javafx.scene.text.Text?>
<?import javafx.geometry.Insets?>
<?import java.net.URL?>
<GridPane xmlns="http://javafx.com/javafx"xmlns:fx="http://javafx.com/fxml"fx:controller="com.hk.sky.bookmanager.controller.ShowController"hgap="8" vgap="8"><padding><Insets left="10" top="20" /></padding><ImageView GridPane.rowIndex="0" GridPane.columnIndex="0" GridPane.rowSpan="5" fitWidth="75" fitHeight="90"><Image url="@image/book.png" /></ImageView><Text GridPane.rowIndex="0" GridPane.columnIndex="1" text="编号："/><Text fx:id="bookId" GridPane.rowIndex="0" GridPane.columnIndex="2"/><Text GridPane.rowIndex="1" GridPane.columnIndex="1" text="书名："/><Text fx:id="bookName" GridPane.rowIndex="1" GridPane.columnIndex="2"/><Text GridPane.rowIndex="2" GridPane.columnIndex="1" text="作者："/><Text fx:id="bookAuthor" GridPane.rowIndex="2" GridPane.columnIndex="2"/><Text GridPane.rowIndex="3" GridPane.columnIndex="1" text="价格："/><Text fx:id="bookPrice" GridPane.rowIndex="3" GridPane.columnIndex="2"/><Text GridPane.rowIndex="4" GridPane.columnIndex="1" text="库存："/><Text fx:id="bookStock" GridPane.rowIndex="4" GridPane.columnIndex="2"/><Text GridPane.rowIndex="5" GridPane.columnIndex="1" text="出版社："/><Text fx:id="bookPublish" GridPane.rowIndex="5" GridPane.columnIndex="2"/><Text GridPane.rowIndex="6" GridPane.columnIndex="0" text="详情" GridPane.halignment="CENTER" GridPane.columnSpan="3"styleClass="xq"/><Text fx:id="bookDetail" GridPane.rowIndex="7" GridPane.columnIndex="0" GridPane.columnSpan="3" wrappingWidth="260"/><stylesheets><URL value="@show.css"/></stylesheets>
</GridPane>

add.css

.aBtn{-fx-background-color: #0274FE;-fx-pref-width: 80px;-fx-pref-height: 40px;-fx-background-radius: 10px;-fx-text-fill: #fff;/*鼠标在上面会变成手的形状*/-fx-cursor: hand;/*加粗*/-fx-font-weight:bold;
}
.eBtn{-fx-background-color: #0274FE;/*按钮长宽*/-fx-pref-width: 80px;-fx-pref-height: 40px;-fx-background-radius: 10px;/*设置文字颜色*/-fx-text-fill: #fff;-fx-cursor: hand;
}

houtai.css

#wm{
-fx-font-size: 14px;
-fx-font-family:"Microsoft YaHei UI";}
.table-view .table-column{-fx-alignment:CENTER;-fx-font-weight:bold;/*点击文字会变色*/-fx-light-text-color:red;
}.ht{
/*设置背景，其中链接为网络图像链接*/
-fx-background-image:url("https://b.zol-img.com.cn/desk/bizhi/image/10/960x600/1598319721647.jpg");
-fx-background-repeat:stretch;
-fx-background-size:700 430;
}
/*设置表格为透明，下面四个样式缺一不可*/
.table-view {-fx-background-color: transparent;
}
/*表格最上面一行导航栏设置透明*/
.table-column {-fx-background-color: transparent;
}
.table-view .column-header-background {-fx-background-color:transparent;}
/*表格内容透明*/
.table-row-cell {-fx-background-color:transparent;
}

show.css

.xq{
-fx-font-size: 14px;
/*设置字体颜色*/
-fx-fill: RED;
}

image大家可以在书籍模型图片中找，有很多种图片给大家选择

Ⅱ、 login包

login.css

#login-title {-fx-font-size: 26px;-fx-font-family: "Microsoft YaHei UI";
}.login-btn {-fx-background-color: #0274FE;/*设置按钮长宽*/-fx-pref-width: 50px;-fx-pref-height: 30px;/*设置按钮角边距*/-fx-background-radius: 30px;-fx-text-fill: #fff;-fx-cursor: hand;
}
.enroll-btn {-fx-background-color: #0274FE;-fx-pref-width: 150px;-fx-pref-height: 30px;/*设置按钮角边距*/-fx-background-radius: 10px;-fx-text-fill: #fff;-fx-cursor: hand;
}
.login{
/*设置背景，其中链接为网络图像链接*/
-fx-background-image:url("https://ts1.cn.mm.bing.net/th/id/R-C.2007af8279430f7cdae54e3714cceeef?rik=E0YMmdkLdVaw8Q&riu=http%3a%2f%2f5b0988e595225.cdn.sohucs.com%2fimages%2f20181117%2f8e26ba707bf74f6bb8a87cf1a3f35ffb.gif&ehk=OBammaDlXjLLw29ouO%2b6nENFuzJNMOFwirTInUSCmfo%3d&risl=&pid=ImgRaw&r=0");
-fx-background-repeat:stretch;
-fx-background-size:290 240;
}
.enroll{
/*设置背景，其中链接为网络图像链接*/
-fx-background-image:url("https://ts1.cn.mm.bing.net/th/id/R-C.0bd134123caa7005ec50e75b45218a54?rik=lSaVSid3n%2bfrXg&riu=http%3a%2f%2fwww.kutoo8.com%2fupload%2fimage%2f81433892%2f12.jpg&ehk=cjol7ne5lTOk6iPRCR%2f2RIoGlffBEHdj9QO5RHUWYdk%3d&risl=&pid=ImgRaw&r=0");
-fx-background-repeat:stretch;
-fx-background-size:290 251;
}

enroll.fxml

<?xml version="1.0" encoding="UTF-8"?><?import javafx.geometry.Insets?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.VBox?><?import javafx.scene.control.Button?><?import javafx.scene.layout.GridPane?>
<?import javafx.scene.text.Text?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.control.PasswordField?>
<?import java.net.URL?>
<GridPane fx:controller="com.hk.sky.bookmanager.controller.EnrollController"xmlns:fx="http://javafx.com/fxml" vgap="10" hgap="10" styleClass="enroll"><padding><Insets top="40" left="30"/></padding><Text id="login-title" fx:id="title" text="注 册" GridPane.rowIndex="0" GridPane.columnIndex="0" GridPane.columnSpan="2"GridPane.halignment="CENTER"/><Label text="用户名:" GridPane.rowIndex="1" GridPane.columnIndex="0"/><TextField fx:id="username1" GridPane.rowIndex="1" GridPane.columnIndex="1"/><Label text="密码:" GridPane.rowIndex="2" GridPane.columnIndex="0"/><PasswordField fx:id="password1" GridPane.rowIndex="2" GridPane.columnIndex="1"/><Text fx:id="errorMsg" text="" GridPane.rowIndex="3" GridPane.columnIndex="0" GridPane.columnSpan="2"GridPane.halignment="CENTER"/><Button text="申请注册" GridPane.rowIndex="4" GridPane.columnIndex="0" visible="true" fx:id="enroll"GridPane.columnSpan="2" GridPane.halignment="CENTER" onAction="#enrollBtn" styleClass="enroll-btn"/><Button text="修改密码" GridPane.rowIndex="4" GridPane.columnIndex="0" visible="false" fx:id="alert"GridPane.columnSpan="2" GridPane.halignment="CENTER" onAction="#alertBtn" styleClass="enroll-btn"/><stylesheets><URL value="@login.css"/></stylesheets></GridPane>

login.fxml

<?xml version="1.0" encoding="UTF-8"?><?import javafx.geometry.Insets?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.VBox?><?import javafx.scene.control.Button?><?import javafx.scene.layout.GridPane?>
<?import javafx.scene.text.Text?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.control.PasswordField?>
<?import java.net.URL?>
<?import javafx.scene.layout.HBox?>
<GridPane fx:controller="com.hk.sky.bookmanager.controller.LoginController"xmlns:fx="http://javafx.com/fxml" vgap="8" hgap="8" styleClass="login" ><padding><Insets top="40" left="30"/></padding><Text id="login-title" text="登 录" GridPane.rowIndex="0" GridPane.columnIndex="0" GridPane.columnSpan="2"GridPane.halignment="CENTER"/><Label text="用户名:" GridPane.rowIndex="1" GridPane.columnIndex="0"/><TextField fx:id="username" GridPane.rowIndex="1" GridPane.columnIndex="1"/><Label text="密码:" GridPane.rowIndex="2" GridPane.columnIndex="0"/><PasswordField fx:id="password" GridPane.rowIndex="2" GridPane.columnIndex="1"/><Text fx:id="errorMsg" GridPane.rowIndex="3" GridPane.columnIndex="1"/><Button text="登录" GridPane.rowIndex="4" GridPane.columnIndex="0" GridPane.halignment="RIGHT"onAction="#checkLogin" styleClass="login-btn" ></Button><Button text="注册" GridPane.rowIndex="4" GridPane.columnIndex="1" GridPane.halignment="RIGHT"onAction="#enrollLogin" styleClass="login-btn"/><stylesheets><URL value="@login.css"/></stylesheets></GridPane>