前言

最近初学MySQL，利用MySQL与Javafx写了一个小型学籍管理系统。因为是初学，在很多方面技术都太成熟，写的很乱（原因是中间剽窃了很多人的智慧，借鉴了不少人的代码），最终才写完了一个勉强能看的作品。

ER图

MAIN方法

package application;import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import java.util.Objects;
/** 程序入口*/
public class Main extends Application{public void start(Stage primaryStage) {try {Pane loginPane = FXMLLoader.load(Objects.requireNonNull(getClass().getResource("/resources/fxml_Login.fxml")));Scene loginScene = new Scene(loginPane,450,300);primaryStage.setScene(loginScene);primaryStage.setTitle("懿儇的垃圾系统");primaryStage.show();primaryStage.setResizable(false);} catch(Exception e) {e.printStackTrace();}}public static void main(String[] args) {launch(args);}
}

连接数据库

package application;import table.User;import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;public class DataBase {Connection connection = null;ResultSet rs = null;//mysql数据库urlprivate static String userName=null;private static String password=null;private static String url= "jdbc:mysql://localhost:3306/stumanager?user=root&password=123456&useUnicode=true&characterEncoding=gbk&useSSL=false";
//  Connection connect;boolean pd;public DataBase() {try {//mysql数据库设置驱动程序类型Class.forName("com.mysql.jdbc.Driver"); System.out.println("mysql数据库驱动加载成功");}catch(java.lang.ClassNotFoundException e) {e.printStackTrace();}}public DataBase(String a, String b) {this();DataBase.userName=a;DataBase.password=b;String sql = "select * from user where userName= ? and password = ?; ";}/*public boolean DataBase(String a, String b) throws Exception{//执行SQL语句，并接收结果String sql = "select * from user where userName= ? and password = ?; ";PreparedStatement ps = connect.prepareStatement(sql);ps.setString(1,a);ps.setString(2,b);ResultSet rs = ps.executeQuery();if(rs.next()){pd= true;}else{pd = false;}ps.close();return pd;}*//*public boolean yanzheng (String a,String b) throws Exception{//执行SQL语句，并接收结果String sql = "select * from user where userName= ? and password = ?; ";PreparedStatement ps;ps = connection().Statement(sql);ps.setString(1,a);ps.setString(2,b);ResultSet rs = ps.executeQuery();boolean pdd=false;while (rs.next()){pdd=true;}System.out.println(a+"er");System.out.println(pdd+"wer");ps.close();return pdd;}*///连接数据库public boolean connect(){if(url==null){return false;}try{//mysql数据库connection = DriverManager.getConnection(url);//sqlserver数据库//connection = DriverManager.getConnection(urlSqlServer);if(connection!=null){System.out.println("数据库连接成功");return true;}return false;}catch(Exception e){//e.printStackTrace();System.out.println("数据库连接失败");return false;}}/*public Connection connect(){try{//mysql数据库return DriverManager.getConnection(url);}catch(Exception e){System.out.println("数据库连接失败");}return null;}*///连接失败public void disconnect(){try{if(connection != null){connection.close();connection = null;}}catch(Exception e){e.printStackTrace();}}//查询public ResultSet executeQuery(String sql) {try {System.out.println("executeQuery(SQL) = " + sql);PreparedStatement pstm = connection.prepareStatement(sql);// 执行查询rs = pstm.executeQuery();} catch(SQLException ex) { ex.printStackTrace();}return rs;}public ResultSet executeQuery1(String sql,String un, String pw) {try {System.out.println(sql + un+pw);PreparedStatement pstm = connection.prepareStatement(sql);pstm.setString(1,un);pstm.setString(2,pw);// 执行查询rs=pstm.executeQuery();}catch(SQLException ex) {ex.printStackTrace();}return rs;}public void executeQuery2(String sql,String un, String pw) {try {System.out.println(sql + un+pw);PreparedStatement pstm = connection.prepareStatement(sql);pstm.setString(1,un);pstm.setString(2,pw);// 执行查询pstm.executeUpdate();}catch(SQLException ex) {ex.printStackTrace();}}//executeUpdate 的返回值是一个整数，指示受影响的行数（即更新计数）。public int executeUpdate(String sql) {int count = 0;connect();try {Statement stmt = connection.createStatement();count = stmt.executeUpdate(sql);} catch(SQLException ex) { System.err.println(ex.getMessage());return -1;}disconnect();return count;}}

登录界面

登录界面FX代码

<?xml version="1.0" encoding="UTF-8"?><?import javafx.scene.text.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.image.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?><AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="300.0" prefWidth="450.0" style="-fx-background-color: #90EE90;" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="control.LoginControl"><children><Label layoutX="74.0" layoutY="168.0" text="密码" textAlignment="CENTER"><font><Font size="20.0" /></font></Label><PasswordField fx:id="mima" layoutX="149.0" layoutY="167.0" promptText="" /><Button fx:id="btn_login" layoutX="150.0" layoutY="206.0" mnemonicParsing="false" onAction="#loginDataBase" prefHeight="30.0" prefWidth="80.0" text="登录" textFill="RED"><font><Font size="18.0" /></font></Button><Label contentDisplay="CENTER" layoutX="106.0" layoutY="214.0" textAlignment="CENTER" wrapText="true"><font><Font size="14.0" /></font></Label><ImageView fitHeight="32.0" fitWidth="32.0" layoutX="114.0" layoutY="255.0"><image><Image url="@../image/time.png" /></image></ImageView><TextField fx:id="text_time" alignment="CENTER" disable="true" editable="false" layoutX="196.0" layoutY="254.0" prefHeight="34.0" prefWidth="150.0" text="1970年1月1日"><font><Font size="16.0" /></font></TextField><Label alignment="CENTER" contentDisplay="CENTER" layoutX="117.0" layoutY="29.0" text="欢迎使用懿儇的垃圾系统" textAlignment="CENTER" wrapText="true"><font><Font size="18.0" /></font></Label><ComboBox fx:id="asd" editable="true" layoutX="150.0" layoutY="72.0" prefWidth="150.0" promptText="选择方式" /><Label layoutX="74.0" layoutY="124.0" text="账号"><font><Font size="20.0" /></font></Label><TextField fx:id="zhang" layoutX="149.0" layoutY="123.0" /><Button fx:id="btn_login_deng" layoutX="271.0" layoutY="206.0" mnemonicParsing="false" onAction="#btn_login_denglu" prefHeight="30.0" prefWidth="80.0" text="注册" textFill="#bf26d3"><font><Font size="18.0" /></font></Button></children>
</AnchorPane>d

登陆界面FXMLcontrol

package control;import java.io.IOException;
import java.net.InetAddress;
import java.net.URL;
import java.net.UnknownHostException;
import java.text.DateFormat;
import java.util.Date;
import java.util.Objects;
import java.util.ResourceBundle;import application.DataBase;
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.Parent;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import javafx.scene.control.ComboBox;
import table.User;
import javax.swing.*;public class LoginControl implements Initializable{@FXMLpublic PasswordField mima;public TextField zhang;//private TextField text_userName;//private TextField text_DataBaseName;@FXMLprivate Button btn_login;@FXMLprivate TextField text_time;@FXMLprivate ComboBox<String> asd;@FXMLprivate TextField text_IP;final static String[] optionsName =new String[] {"学生登录","教师登录"};@Override //时间和IP显示public void initialize(URL location, ResourceBundle resources){Date date =new Date();DateFormat longFormat=DateFormat.getDateInstance(DateFormat.LONG);InetAddress localAddress=null;try {localAddress=InetAddress.getLocalHost();} catch (UnknownHostException e) {// TODO Auto-generated catch blocke.printStackTrace();}text_time.setText(longFormat.format(date));text_time.setTooltip(new Tooltip("当前时间"));mima.requestFocus();ObservableList<String> Options =FXCollections.observableArrayList(optionsName);asd.setItems(Options);asd.setTooltip(new Tooltip("选择一个查询项"));}@FXML    //登录void loginDataBase(ActionEvent event) throws Exception {DataBase DB=new DataBase();System.out.println(mima.getText().trim());if(DB.connect()){if(User.yanzheng(zhang.getText().trim(),mima.getText().trim())){actionStage();//切换场景到选择面板DB.disconnect();}}else{System.out.println("登录失败");Alert loginError = new Alert(Alert.AlertType.ERROR);loginError.initStyle(StageStyle.UNIFIED);//最少平台显示loginError.setHeaderText("登录失败");loginError.setTitle("错误");String ERROR_TEXT="1.请检查账号是否输入正确";loginError.setContentText(ERROR_TEXT);loginError.show();}}//登陆成功界面跳转private void actionStage() throws IOException{//获取当前场景且关闭Stage loginStage = (Stage) btn_login.getScene().getWindow();loginStage.close();//选择场景出现try {int index=0;for(int i=0;i<optionsName.length;++i){if(optionsName[i].compareTo(asd.getValue().trim())==0){index=i;break;}}     //学生登陆if(index==0){
//            FXMLLoader fxmlLoader = new FXMLLoader(LoginControl.class.getResource("/fxml_Student.fxml"));Pane loginPane = FXMLLoader.load(Objects.requireNonNull(getClass().getResource("/resources/fxml_Student.fxml")));Stage stage =new Stage();Scene scene = new Scene(loginPane, 500, 410);stage.setScene(scene);stage.show();}else{   //教师登录Pane teachertPane = FXMLLoader.load(getClass().getResource("/resources/fxml_Teacher.fxml"));Scene teacherScene = new Scene(teachertPane,1520,800);Stage teacherStage=new Stage();teacherStage.setScene(teacherScene);teacherStage.setTitle("学籍信息管理");teacherStage.show();}} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}public void btn_login_denglu(ActionEvent actionEvent) throws IOException {Stage loginStage = (Stage) btn_login.getScene().getWindow();loginStage.close();Pane loginPane = FXMLLoader.load(Objects.requireNonNull(getClass().getResource("/resources/fxml_zhuce.fxml")));Stage stage =new Stage();Scene scene = new Scene(loginPane, 500, 350);stage.setScene(scene);stage.show();}}

注册界面

注册界面FX

<?xml version="1.0" encoding="UTF-8"?><?import javafx.scene.text.*?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?><AnchorPane prefHeight="350.0" prefWidth="500.0" style="-fx-background-color: #87CEFA;" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="control.ZhuceControl"><children><Label layoutX="190.0" layoutY="51.0" text="注册新用户"><font><Font size="27.0" /></font></Label><Label layoutX="94.0" layoutY="127.0" text="账号"><font><Font size="21.0" /></font></Label><Label layoutX="94.0" layoutY="199.0" text="密码"><font><Font size="21.0" /></font></Label><TextField fx:id="mmm" layoutX="166.0" layoutY="198.0" /><Button fx:id="ddd" layoutX="224.0" layoutY="263.0" mnemonicParsing="false" onAction="#sss" text="注册"><font><Font size="20.0" /></font></Button><TextField fx:id="zzz" layoutX="166.0" layoutY="126.0" /></children>
</AnchorPane>

注册界面control

package control;import application.DataBase;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import table.User;import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Objects;public class ZhuceControl {public static DataBase DB=new DataBase();@FXMLprivate Button ddd;@FXMLprivate TextField zzz;@FXMLprivate TextField mmm;@FXMLvoid sss(ActionEvent event) throws Exception {DataBase DB=new DataBase();if(DB.connect()) {if  (User.yanzheng(zzz.getText().trim(), mmm.getText().trim())) {System.out.println("注册失败");Alert loginError = new Alert(Alert.AlertType.ERROR);loginError.initStyle(StageStyle.UNIFIED);//最少平台显示loginError.setHeaderText("注册失败");loginError.setTitle("错误");String ERROR_TEXT = "请检查账号是否重复";loginError.setContentText(ERROR_TEXT);loginError.show();}else{if (User.zhuce(zzz.getText().trim(), mmm.getText().trim())) {DB.disconnect();System.out.println("注册成功");Stage loginStage = (Stage) ddd.getScene().getWindow();loginStage.close();Pane loginPane = FXMLLoader.load(Objects.requireNonNull(getClass().getResource("/resources/fxml_Login.fxml")));Stage stage =new Stage();Scene scene = new Scene(loginPane, 450, 300);stage.setScene(scene);stage.show();}}}}}

教师界面

教师界面FX

<?xml version="1.0" encoding="UTF-8"?><?import javafx.collections.*?>
<?import javafx.scene.*?>
<?import javafx.scene.image.*?>
<?import javafx.scene.text.*?>
<?import javafx.scene.paint.*?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?><BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="650.0" prefWidth="1500.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="control.TeacherControl"><top><MenuBar fx:id="menus" prefHeight="4.0" prefWidth="652.0" BorderPane.alignment="CENTER"><menus><Menu fx:id="menu_edit" mnemonicParsing="false" text="编辑" /><Menu fx:id="menu_help" mnemonicParsing="false" text="帮助" /></menus></MenuBar></top><center><BorderPane prefWidth="615.0" BorderPane.alignment="CENTER"><bottom><HBox fx:id="HBox_application" prefHeight="35.0" prefWidth="600.0" BorderPane.alignment="CENTER"><children><Button fx:id="btn_add" mnemonicParsing="false" onAction="#addStudent" prefHeight="35.0" prefWidth="100.0" text="新增" /><ComboBox fx:id="comboBox" onAction="#comboBoxSelectOption" prefHeight="35.0" prefWidth="100.0" value="请选择"></ComboBox><TextField fx:id="text_select" prefHeight="35.0" prefWidth="250.0" /><Button fx:id="btn_select" mnemonicParsing="false" onAction="#selectStudent" prefHeight="40.0" prefWidth="60.0" text="查询" /><Button fx:id="btn_modify" mnemonicParsing="false" onAction="#modifyStudent" prefHeight="35.0" prefWidth="70.0" text="修改" /><Button fx:id="btn_delete" mnemonicParsing="false" onAction="#deleteStudent" prefHeight="35.0" prefWidth="100.0" text="删除" textFill="#f20c0c" /></children></HBox></bottom><center><ScrollPane fx:id="scrollpane" fitToHeight="true" fitToWidth="true" prefHeight="330.0" prefViewportHeight="360.0" prefViewportWidth="605.0" prefWidth="610.0" vbarPolicy="ALWAYS" BorderPane.alignment="CENTER"><content><TableView fx:id="tableView" editable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" BorderPane.alignment="CENTER"><columns><TableColumn fx:id="table_StudentID" minWidth="100.0" prefWidth="150.0" text="学号" /><TableColumn fx:id="table_Name" minWidth="100.0" prefWidth="150.0" text="姓名" /><TableColumn fx:id="table_Sex" minWidth="100.0" prefWidth="150.0" text="性别" /><TableColumn fx:id="table_ClassName" minWidth="100.0" prefWidth="150.0" text="班级" /><TableColumn fx:id="table_Department" minWidth="100.0" prefWidth="150.0" text="院系" /><TableColumn fx:id="table_birthday" minWidth="100.0" prefWidth="150.0" text="生日" /><TableColumn fx:id="table_Native_Place" minWidth="100.0" prefWidth="150.0" text="籍贯" /><TableColumn fx:id="table_Reward" minWidth="100.0" prefWidth="150.0" text="奖励" /><TableColumn fx:id="table_Punishment" minWidth="100.0" prefWidth="150.0" text="处罚" /><TableColumn fx:id="table_MyChange" minWidth="100.0" prefWidth="150.0" text="变动" /></columns></TableView></content></ScrollPane></center></BorderPane></center><bottom><HBox fx:id="HBox_bottom" prefHeight="25.0" prefWidth="600.0" style="-fx-background-color: #F8F8F8;" BorderPane.alignment="CENTER"><children><ImageView fitHeight="25.0" fitWidth="25.0"><image><Image url="@../image/time.png" /></image></ImageView><Label fx:id="label_time" alignment="CENTER" prefHeight="25.0" prefWidth="150.0" style="-fx-border-color: #000000;" text="1970年1月1日" textAlignment="CENTER" textFill="#b209e1"><font><Font name="System Bold Italic" size="15.0" /></font></Label><Label disable="true" prefWidth="200.0" /><ImageView fitHeight="25.0" fitWidth="25.0"><image><Image url="@../image/IP.png" /></image></ImageView><Label fx:id="label_IP" alignment="CENTER" prefHeight="25.0" prefWidth="160.0" style="-fx-border-color: #000000;" text="192.168.0.1" textAlignment="CENTER"><font><Font name="System Bold Italic" size="15.0" /></font></Label></children></HBox></bottom>
</BorderPane>

教师界面control

package control;import java.io.IOException;
import java.net.InetAddress;
import java.net.URL;
import java.net.UnknownHostException;
import java.text.DateFormat;
import java.util.Date;
import java.util.Optional;
import java.util.ResourceBundle;import application.Person;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.value.ObservableValue;
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.fxml.JavaFXBuilderFactory;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.TableColumn.CellDataFeatures;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Modality;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import javafx.util.Callback;
import table.MyChange;
import table.Punishment;
import table.Reward;
import table.Student;public class TeacherControl implements Initializable {@FXMLprivate ScrollPane scrollpane;@FXMLprivate HBox HBox_bottom;@FXMLprivate HBox HBox_application;@FXMLprivate MenuBar menus;@FXMLprivate Menu menu_edit;@FXMLprivate Menu menu_help;@FXMLprivate ComboBox<String> comboBox;@FXMLprivate TextField text_select;@FXMLprivate Label label_IP;@FXMLprivate Label label_time;@FXMLprivate Button btn_select;@FXMLprivate Button btn_add;@FXMLprivate Button btn_modify;@FXMLprivate Button btn_delete;@FXMLprivate TableView<Person> tableView;@FXMLprivate TableColumn<Person, String> table_StudentID;@FXMLprivate TableColumn<Person, String> table_Name;@FXMLprivate TableColumn<Person, String> table_Sex;@FXMLprivate TableColumn<Person, String> table_ClassName;@FXMLprivate TableColumn<Person, String> table_Department;@FXMLprivate TableColumn<Person, String> table_birthday;@FXMLprivate TableColumn<Person, String> table_Native_Place;@FXMLprivate TableColumn<Person, String> table_Reward;@FXMLprivate TableColumn<Person, String> table_Punishment;@FXMLprivate TableColumn<Person, String> table_MyChange;ObservableList<Person> data;//选择按钮final static String[] optionsName =new String[] {"请选择","学号","姓名","班级","院系"};@Override//初始化教师顶部和底部public void initialize(URL location, ResourceBundle resources) {//布局初始化HBox_bottom.setAlignment(Pos.CENTER);HBox_application.setAlignment(Pos.CENTER);text_select.setText("点击查询返回全部信息");//表格初始化tableView.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);//表格自动填充data =FXCollections.observableArrayList();//数据tableView.setItems(data);//添加数据tableView.setStyle( "-fx-alignment: CENTER;");data.clear();data.addAll(Person.getPeopleFromSQL(Student.getStudentIDFromSQL()));//每一列初始化InitTableColumes();//标签初始化Date date =new Date();DateFormat longFormat=DateFormat.getDateInstance(DateFormat.LONG);InetAddress localAddress=null;try {localAddress=InetAddress.getLocalHost();} catch (UnknownHostException e) {// TODO Auto-generated catch blocke.printStackTrace();}label_IP.setText(localAddress.getHostAddress());label_IP.setTooltip(new Tooltip("本机IP"));label_time.setText(longFormat.format(date));label_time.setTooltip(new Tooltip("当前时间"));//下拉栏初始化ObservableList<String> Options = FXCollections.observableArrayList(optionsName);comboBox.setItems(Options);comboBox.setTooltip(new Tooltip("选择一个查询项"));//菜单栏初始化//编辑栏MenuItem menu_add = new MenuItem("新增");menu_add.setGraphic(new ImageView(new Image("image/add.png")));menu_add.setOnAction((ActionEvent t) -> {addStudent(t);});MenuItem menu_modify = new MenuItem("修改");menu_modify.setGraphic(new ImageView(new Image("image/modify.png")));menu_modify.setOnAction((ActionEvent t) -> {modifyStudent(t);});MenuItem menu_delete = new MenuItem("删除");menu_delete.setGraphic(new ImageView(new Image("image/delete.png")));menu_delete.setOnAction((ActionEvent t) -> {deleteStudent(t);});MenuItem menu_exit = new MenuItem("退出");menu_exit.setGraphic(new ImageView(new Image("image/exit.png")));menu_exit.setOnAction((ActionEvent t) -> {System.exit(0);});menu_edit.getItems().addAll(menu_add,menu_modify,menu_delete,menu_exit);//帮助栏 MenuItem menu_FU = new MenuItem("刘哲");MenuItem menu_MO = new MenuItem("刘懿儇");menu_help.getItems().addAll(menu_FU,menu_MO);}@FXML//新增事件（新增学生）void addStudent(ActionEvent event) {Pane addStudentPane=null;URL location=null;//System.out.println("添加学生");location = getClass().getResource("/resources/fxml_AddStudent.fxml");FXMLLoader fxmlLoader = new FXMLLoader();fxmlLoader.setLocation(location);fxmlLoader.setBuilderFactory(new JavaFXBuilderFactory());try {addStudentPane =fxmlLoader.load(location.openStream());} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}AddStudentControl control=(AddStudentControl)fxmlLoader.getController();Scene sc =new Scene(addStudentPane);Stage stage=new Stage();stage.setScene(sc);stage.initOwner(btn_add.getScene().getWindow());stage.setTitle("添加学生");stage.initStyle(StageStyle.UNIFIED);stage.initModality(Modality.WINDOW_MODAL);stage.showAndWait();if(control.newPerson!=null){data.add(control.newPerson);}}@FXML //查询学生void selectStudent(ActionEvent event){//System.out.println("查询学生");if(text_select.getText()==null || text_select.getText().trim().isEmpty()){Alert Error = new Alert(Alert.AlertType.ERROR);Error.initStyle(StageStyle.UNIFIED);//最少平台显示Error.setHeaderText("查询失败");Error.setTitle("错误");Error.setContentText("请输入内容");Error.show();return ;}int index=0;for(int i=0;i<optionsName.length;++i){if(optionsName[i].compareTo(comboBox.getValue().trim())==0){index=i;break;}        }switch(index){case 0://返回全部学生data.clear();data.addAll(Person.getPeopleFromSQL(Student.getStudentIDFromSQL()));break;case 1://学号查询data.clear();data.add(Person.getPersonFromSQL(text_select.getText().trim()));break;case 2://名称data.clear();data.addAll(Person.getPeopleFromSQLWithStudent(Student.getStudentFromSQLWithName(text_select.getText().trim())));break;case 3://班级data.clear();data.addAll(Person.getPeopleFromSQLWithStudent(Student.getStudentFromSQLWithClassName(text_select.getText().trim())));break;case 4:// 院系data.clear();data.addAll(Person.getPeopleFromSQLWithStudent(Student.getStudentFromSQLWithDepartmentName(text_select.getText().trim())));break;      }   }@FXML  //修改学生void modifyStudent(ActionEvent event){//System.out.println("修改学生信息");Person person=tableView.getSelectionModel().getSelectedItem();int index=-1;index=tableView.getSelectionModel().getSelectedIndex();if(index<0){Alert  Error= new Alert(Alert.AlertType.ERROR);Error.initStyle(StageStyle.UNIFIED);//最少平台显示Error.setHeaderText("修改失败");Error.setTitle("错误");Error.setContentText("请先选择一个行");Error.show();}else {Alert alert = new Alert(AlertType.CONFIRMATION);alert.setTitle("确认");alert.setHeaderText("确定要修改学号为\""+person.student.StudentID+"\"的信息？");Optional<ButtonType> result = alert.showAndWait();if (result.get() == ButtonType.OK){//面板出现Pane modifyStudentPane=null;URL location=null;//System.out.println("添加学生");location = getClass().getResource("/resources/fxml_ModifyStudent.fxml");FXMLLoader fxmlLoader = new FXMLLoader();fxmlLoader.setLocation(location);fxmlLoader.setBuilderFactory(new JavaFXBuilderFactory());try {modifyStudentPane =fxmlLoader.load(location.openStream());} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}ModifyStudentControl control=(ModifyStudentControl)fxmlLoader.getController();control.person=person;control.ChangePaneWithPerson();     Scene sc =new Scene(modifyStudentPane);Stage stage=new Stage();stage.setScene(sc);stage.initOwner(btn_modify.getScene().getWindow());stage.setTitle("修改学生信息");stage.initStyle(StageStyle.UNIFIED);stage.initModality(Modality.WINDOW_MODAL);stage.showAndWait();//信息更新data.clear();data.addAll(Person.getPeopleFromSQL(Student.getStudentIDFromSQL()));}}}@FXML   //删除学生void deleteStudent(ActionEvent event){//System.out.println("删除学生");Person delPerson=tableView.getSelectionModel().getSelectedItem();int index=-1;index=tableView.getSelectionModel().getSelectedIndex();if(index<0){Alert  Error= new Alert(Alert.AlertType.ERROR);Error.initStyle(StageStyle.UNIFIED);//最少平台显示Error.setHeaderText("删除失败");Error.setTitle("错误");Error.setContentText("请先选择一个行");Error.show();}else {Alert alert = new Alert(AlertType.CONFIRMATION);alert.setTitle("确认");alert.setHeaderText("确定要删除学号为\""+delPerson.student.StudentID+"\"的信息？");Optional<ButtonType> result = alert.showAndWait();if (result.get() == ButtonType.OK){data.remove(index);Person.deletePersonToSQL(delPerson);}}}@FXML   //检索框void comboBoxSelectOption(ActionEvent event){System.out.println("更改了一个选项");text_select.setText(null);if(comboBox.getValue().length()<=2){text_select.setPromptText("请输入一个"+comboBox.getValue());}else {text_select.setText("点击查询返回全部信息");}}//初始换中间学生表格信息private void InitTableColumes(){table_StudentID.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty StudentID=new SimpleStringProperty(param.getValue().student.StudentID);return StudentID;}});table_StudentID.setStyle( "-fx-alignment: CENTER;");//table_StudentID.setEditable(true);//table_StudentID.setCellFactory(TextFieldTableCell.forTableColumn());table_Name.setStyle( "-fx-alignment: CENTER;");table_Name.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty Name=new SimpleStringProperty(param.getValue().student.Name);return Name;}});table_Sex.setStyle( "-fx-alignment: CENTER;");table_Sex.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty Sex=new SimpleStringProperty(param.getValue().student.Sex);return Sex;}});table_ClassName.setStyle( "-fx-alignment: CENTER;");table_ClassName.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty ClassName=new SimpleStringProperty(param.getValue().student.myclass.Name);return ClassName;}});table_Department.setStyle( "-fx-alignment: CENTER;");table_Department.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty DepartmentName=new SimpleStringProperty(param.getValue().student.department.Name);return DepartmentName;}});table_birthday.setStyle( "-fx-alignment: CENTER;");table_birthday.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty Birthday=new SimpleStringProperty(param.getValue().student.Birthday);return Birthday;}});table_Native_Place.setStyle("-fx-alignment: CENTER;");table_Native_Place.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty Native_Place=new SimpleStringProperty(param.getValue().student.Native_Place);return Native_Place;}});table_Reward.setStyle("-fx-alignment: CENTER;");table_Reward.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty reward=new SimpleStringProperty(Reward.REWARD_LEVELS[param.getValue().reward.Levels]);return reward;}});table_Punishment.setStyle("-fx-alignment: CENTER;");table_Punishment.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty punishment=new SimpleStringProperty(Punishment.PUNISH_LEVELS[param.getValue().punishment.Levels]);return punishment;}});table_MyChange.setStyle("-fx-alignment: CENTER;");table_MyChange.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Person,String>,ObservableValue<String>>(){@Overridepublic ObservableValue<String> call(CellDataFeatures<Person, String> param) {// TODO Auto-generated method stubSimpleStringProperty mychange=new SimpleStringProperty(MyChange.CHANGE_LEVELS[param.getValue().mychange.Code]);return mychange;}});}
}

学生界面

学生界面FX

<?xml version="1.0" encoding="UTF-8"?><?import javafx.scene.paint.*?>
<?import javafx.scene.text.*?>
<?import javafx.scene.image.*?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.HBox?><AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="410.0" prefWidth="500.0" style="-fx-background-color: #FFF8DC;" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="control.StudentControl"><children><Label layoutX="52.0" layoutY="18.0" text="学号" textAlignment="CENTER" textOverrun="CENTER_ELLIPSIS" wrapText="true"><font><Font size="18.0" /></font></Label><TextField fx:id="text_StudentID" layoutX="108.0" layoutY="15.0" promptText="请输入学号查询自己的信息" /><Button fx:id="btn_Select" layoutX="380.0" layoutY="26.0" mnemonicParsing="false" onAction="#selcetData" text="查询"><font><Font size="19.0" /></font></Button><Label layoutX="52.0" layoutY="72.0" text="姓名"><font><Font size="18.0" /></font></Label><TextField fx:id="text_Name" layoutX="110.0" layoutY="69.0" prefHeight="30.0" prefWidth="100.0" /><Label layoutX="300.0" layoutY="109.0" text="性别"><font><Font size="18.0" /></font></Label><ComboBox fx:id="comboBox_Sex" layoutX="372.0" layoutY="106.0" prefHeight="30.0" prefWidth="80.0" /><Label layoutX="52.0" layoutY="124.0" text="生日"><font><Font size="18.0" /></font></Label><Label layoutX="52.0" layoutY="176.0" text="籍贯"><font><Font size="18.0" /></font></Label><TextField fx:id="text_Birthday" layoutX="110.0" layoutY="121.0" prefHeight="30.0" prefWidth="120.0" /><TextField fx:id="text_NativePlace" layoutX="110.0" layoutY="173.0" prefHeight="30.0" prefWidth="175.0" /><Label layoutX="52.0" layoutY="235.0" text="班级"><font><Font size="18.0" /></font></Label><Button fx:id="btn_updata" layoutX="209.0" layoutY="366.0" mnemonicParsing="false" onAction="#upData" text="更新" textFill="RED" visible="false"><font><Font size="18.0" /></font></Button><ComboBox fx:id="comboBox_Class" layoutX="110.0" layoutY="235.0" prefWidth="150.0" /><Label layoutX="277.0" layoutY="235.0" text="学籍"><font><Font size="18.0" /></font></Label><TextField fx:id="text_Change" disable="true" editable="false" layoutX="318.0" layoutY="235.0" prefHeight="30.0" prefWidth="65.0" /><Label layoutX="52.0" layoutY="288.0" text="院系"><font><Font size="18.0" /></font></Label><ComboBox fx:id="comboBox_Department" layoutX="110.0" layoutY="285.0" prefHeight="30.0" prefWidth="330.0" /><Label layoutX="46.0" layoutY="335.0" text="奖励"><font><Font size="18.0" /></font></Label><TextField fx:id="text_Reward" editable="false" layoutX="110.0" layoutY="330.0" prefHeight="30.0" prefWidth="150.0" /><Label layoutX="277.0" layoutY="335.0" text="处分"><font><Font size="18.0" /></font></Label><TextField fx:id="text_Punishment" editable="false" layoutX="318.0" layoutY="330.0" prefHeight="30.0" prefWidth="120.0" /><Button fx:id="btn_more" layoutX="350.0" layoutY="150.0" mnemonicParsing="false" onAction="#moreInfo" text="更多信息" textFill="#001eff" visible="false" /></children>
</AnchorPane>

学生界面control

package control;import table.Class;
import table.Department;
import table.MyChange;
import table.Punishment;
import table.Reward;
import table.Student;import java.net.URL;
import java.util.ArrayList;
import java.util.Optional;
import java.util.ResourceBundle;import application.Person;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonType;
import javafx.scene.control.ComboBox;
import javafx.scene.control.TextField;public class StudentControl implements Initializable {@FXMLprivate TextField text_Change;@FXMLprivate ComboBox<String> comboBox_Department;@FXMLprivate TextField text_Birthday;@FXMLprivate TextField text_NativePlace;@FXMLprivate TextField text_StudentID;@FXMLprivate ComboBox<String> comboBox_Class;@FXMLprivate ComboBox<String> comboBox_Sex;@FXMLprivate Button btn_updata;@FXMLprivate Button btn_Select;@FXMLprivate Button btn_more;@FXMLprivate TextField text_Reward;@FXMLprivate TextField text_Name;@FXMLprivate TextField text_Punishment;Person person;@Override   //初始化学生信息表public void initialize(URL location, ResourceBundle resources) {ObservableList<String> OptionsSex = FXCollections.observableArrayList("男","女");comboBox_Sex.setItems(OptionsSex);ArrayList<String> listClass=Class.getClassNameFromSQL();ObservableList<String> OptionsClass = FXCollections.observableArrayList(listClass);comboBox_Class.setItems(OptionsClass);ArrayList<String> listDepartment=Department.getDepartmentNameFromSQL();ObservableList<String> OptionsDepartment = FXCollections.observableArrayList(listDepartment);comboBox_Department.setItems(OptionsDepartment);}@FXML  //查询学生正确就显示，粗了就报错void selcetData(ActionEvent event) {//System.out.println("查询了"+text_StudentID.getText());btn_more.setVisible(true);btn_updata.setVisible(true);person=new Person();if(Student.isStudentFromSQL(text_StudentID.getText().trim())){//从数据库中用ID获得person类person=Person.getPersonFromSQL(text_StudentID.getText().trim());text_Name.setText(person.student.Name);text_Birthday.setText(person.student.Birthday);text_NativePlace.setText(person.student.Native_Place);text_Change.setText(MyChange.CHANGE_LEVELS[person.mychange.Code]);text_Reward.setText(Reward.REWARD_LEVELS[person.reward.Levels]);text_Punishment.setText(Punishment.PUNISH_LEVELS[person.punishment.Levels]);comboBox_Sex.setValue(person.student.Sex);comboBox_Class.setValue(person.student.myclass.Name);comboBox_Department.setValue(person.student.department.Name);}else {Alert alert_Not = new Alert(AlertType.ERROR);alert_Not.setTitle("错误");alert_Not.setHeaderText("查无此人");alert_Not.setContentText("请检查学号输入是否正确或者通知管理员添加信息");alert_Not.showAndWait();}}@FXML  //显示更多信息void moreInfo(ActionEvent event) {Alert alert = new Alert(AlertType.INFORMATION);alert.setTitle("更多信息");String Text="奖励情况\n"+person.reward.Description+"\n\n处罚情况\n"+person.punishment.Description+"\n\n学籍变更情况\n"+person.mychange.Description;alert.setContentText(Text); alert.setHeaderText("更多信息");alert.showAndWait();      }@FXML  //更新学生信息void upData(ActionEvent event) {System.out.println("更新了"+text_StudentID.getText());Alert alert = new Alert(AlertType.CONFIRMATION);alert.setTitle("确认");alert.setHeaderText("确定要修改学号为\""+person.student.StudentID+"\"的信息？");Optional<ButtonType> result = alert.showAndWait();if (result.get() == ButtonType.OK){String sName=text_Name.getText().trim();String sSex=comboBox_Sex.getValue().trim();String sBirthday=text_Birthday.getText().trim();String sPlace=text_NativePlace.getText().trim();String sClass=comboBox_Class.getValue().trim();String sDepartment=comboBox_Department.getValue().trim();boolean bName=text_Name.getText().isEmpty();boolean bSex=comboBox_Sex.getValue().isEmpty();boolean bBirthday=text_Birthday.getText().isEmpty();boolean bPlace=text_NativePlace.getText().isEmpty();boolean bClass=comboBox_Class.getValue().isEmpty();boolean bDepartment=comboBox_Department.getValue().isEmpty();if(bName || bSex || bBirthday || bClass || bPlace || bDepartment){Alert alert_Null = new Alert(AlertType.WARNING);alert_Null.setTitle("警告");alert_Null.setHeaderText("请将信息填写完整");alert_Null.showAndWait();       }else {Student newStudent=new Student();newStudent.Birthday=sBirthday;;newStudent.department=Department.getDepartmentFromSQLWithName(sDepartment);newStudent.myclass=Class.getClassFromSQLWithName(sClass);newStudent.Name=sName;newStudent.Native_Place=sPlace;newStudent.Sex=sSex;newStudent.StudentID=person.student.StudentID;Student.updateInfoToSQL(newStudent);selcetData(event);}}}}

如果有需要私信我，无偿给你发代码。

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JavaFx+Mysql 实现学籍管理系统

前言

ER图

MAIN方法

连接数据库

登录界面

登录界面FX代码

登陆界面FXMLcontrol

注册界面

注册界面FX

注册界面control

教师界面

教师界面FX

教师界面control

学生界面

学生界面FX

学生界面control

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