Java基础课程设计-前端javafx和后端文件储存-事件的增删改查

import javafx.application.Application; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.geometry.Insets; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.Label; import javafx.scene.control.PasswordField; import javafx.scene.control.TextField; import javafx.scene.layout.GridPane; import javafx.scene.paint.Color; import javafx.scene.text.Font; import javafx.scene.text.FontPosture; import javafx.scene.text.FontWeight; import javafx.stage.Stage; import javax.swing.*; import java.awt.*; import java.io.DataInputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; @SuppressWarnings({"all"}) public class cover extends Application{ Stage stage = new Stage(); //登录界面 GridPane login = new GridPane(); Scene loginScene = new Scene(login, 600, 500); //注册界面 GridPane register = new GridPane(); Scene registerScene = new Scene(register, 600, 500); //菜单界面 GridPane menu = new GridPane(); Scene menuScene = new Scene(menu, 600, 500); //添加人员信息 GridPane addPane = new GridPane(); Scene addScene = new Scene(addPane, 600, 500); //修改人员信息 GridPane modifyPane = new GridPane(); Scene modifyScene = new Scene(modifyPane, 600, 500); //删除人员信息 GridPane deletePane = new GridPane(); Scene deleteScene = new Scene(deletePane, 600, 500); //搜索人员信息 GridPane searchPane = new GridPane(); Scene searchScene = new Scene(searchPane, 600, 500); GridPane showInfoPane = new GridPane(); Scene showInfoScene = new Scene(showInfoPane, 600, 500); public void start(Stage primaryStage) { Login(); Register(); Menu(); add(); modify(); delete(); search(); showInfo(); stage.setScene(loginScene); stage.setTitle("大学生感悟和成长目标系统"); stage.setResizable(false); stage.show(); } //登录界面 void Login() { Label title = new Label("LoginPage"); title.setFont(Font.font("T", FontWeight.LIGHT, FontPosture.ITALIC, 30)); Label lable_1 = new Label("Account："); lable_1.setFont(Font.font("T", FontWeight.LIGHT, FontPosture.ITALIC, 15)); Label lable_2 = new Label("Password："); lable_2.setFont(Font.font("T", FontWeight.LIGHT, FontPosture.ITALIC, 15)); Label warn = new Label("账号或密码错误"); lable_1.centerShapeProperty(); lable_2.centerShapeProperty(); warn.setTextFill(Color.RED); warn.setVisible(false); warn.setFont(Font.font("T", FontPosture.ITALIC, 20)); TextField field_1 = new TextField(); PasswordField field_2 = new PasswordField(); Button loginButton = new Button("Login"); loginButton.setTranslateX(100); loginButton.setTranslateY(320); Button registerButton = new Button("Register"); registerButton.setTranslateX(320); registerButton.setTranslateY(320); Button tipButton1 = new Button("账号：jiangxinran"); Button tipButton2 = new Button("密码：123456"); tipButton1.setTranslateX(100); tipButton1.setTranslateY(250); tipButton2.setTranslateX(300); tipButton2.setTranslateY(250); login.setHgap(20); login.setVgap(20); login.setPadding(new Insets(0, 10, 10, 30)); login.add(title, 4, 3); login.add(lable_1, 3, 4); login.add(lable_2, 3, 5); login.add(field_1, 4, 4); login.add(field_2, 4, 5); login.add(warn, 4, 6); login.getChildren().addAll(loginButton, registerButton, tipButton1, tipButton2); login.setStyle("-fx-background-image: url(" + "file:src/image/pro.png" + "); " + "-fx-background-position: center center; " + "-fx-background-repeat: stretch;" + "-fx-background-color: transparent;" + "-fx-background-size: 850px;"); //登录事件 loginButton.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { try { if (account.test_login(field_1.getText(), field_2.getText()) == 1) { stage.setScene(menuScene); } else { warn.setVisible(true); } } catch (IOException e) { e.printStackTrace(); } } }); //注册事件 registerButton.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { warn.setVisible(false); stage.setScene(registerScene); } }); } //注册页面 void Register (){ Label title = new Label("注册"); title.setFont(Font.font("T", FontWeight.LIGHT, FontPosture.ITALIC, 35)); Label user = new Label("用户名："); user.setFont(Font.font("T", FontWeight.LIGHT, FontPosture.ITALIC, 20)); Label password = new Label("密码："); password.setFont(Font.font("T", FontWeight.LIGHT, FontPosture.ITALIC, 20)); Label comfirm = new Label("确认密码："); comfirm.setFont(Font.font("T", FontWeight.LIGHT, FontPosture.ITALIC, 20)); Label comfirmWarn = new Label("两次密码不一样"); comfirmWarn.setTextFill(Color.RED); comfirmWarn.setVisible(false); comfirmWarn.setFont(Font.font("T", FontPosture.ITALIC, 20)); Label repeatWarn = new Label("该账号已存在"); repeatWarn.setTextFill(Color.RED); repeatWarn.setVisible(false); repeatWarn.setFont(Font.font("T", FontPosture.ITALIC, 20)); TextField field_1 = new TextField(); PasswordField field_2 = new PasswordField(); PasswordField field_3 = new PasswordField(); Button registerButton = new Button("注册"); registerButton.setTranslateX(30); registerButton.setTranslateY(300); Button returnButton = new Button("返回"); returnButton.setTranslateX(250); returnButton.setTranslateY(300); register.setHgap(20); register.setVgap(20); register.setPadding(new Insets(20, 10, 10, 100)); register.add(title, 1, 0); register.add(user, 0, 2); register.add(password, 0, 4); register.add(comfirm, 0, 6); register.add(field_1, 1, 2); register.add(field_2, 1, 4); register.add(field_3, 1, 6); register.add(repeatWarn, 1, 7); register.add(comfirmWarn, 1, 7); register.getChildren().addAll(registerButton, returnButton); register.setStyle("-fx-background-image: url(" + "file:src/image/zhuce.png" + "); " + "-fx-background-position: center center; " + "-fx-background-repeat: stretch;" + "-fx-background-color: transparent;" + "-fx-background-size: 850px;"); //返回按钮 returnButton.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { stage.setScene(loginScene); comfirmWarn.setVisible(false); repeatWarn.setVisible(false); } }); //注册按钮 registerButton.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { try { if(field_2.getText() != field_3.getText()) { if(account.test_fileExist(field_1.getText()) == 1) { account.test_register(field_1.getText(), field_2.getText()); stage.setScene(loginScene); comfirmWarn.setVisible(false); repeatWarn.setVisible(false); } else { comfirmWarn.setVisible(false); repeatWarn.setVisible(true); } } else { comfirmWarn.setVisible(true); } } catch(IOException e) { e.printStackTrace(); } //删除 field_1.setText(""); field_2.setText(""); field_3.setText(""); } }); } //菜单界面 void Menu() { Button add = new Button("Add Event"); Button modify = new Button("Modify Event"); Button delete = new Button("Delete Event"); Button search = new Button("Search Event"); Button showInfo = new Button("Show All Events"); menu.setHgap(20); menu.setVgap(20); menu.setPadding(new Insets(0, 10, 10, 10)); menu.add(add, 9, 8); menu.add(modify, 9, 9); menu.add(delete, 9, 10); menu.add(search, 9, 11); menu.add(showInfo,9,6); menu.setStyle("-fx-background-image: url(" + "file:src/image/pro.png" + ");