【发布时间】:2017-06-13 10:43:41
【问题描述】:
我正在尝试创建一个基本的登录应用程序,在输入凭据后,用户必须被带到一个新屏幕。
但是当我运行我的应用程序并输入凭据时,它会进入一个新屏幕,但我可以看到这是一个新窗口,而旧窗口仍在后台打开。
下面是我的代码:
package com.gsx.controller;
import java.io.IOException;
import java.util.logging.Logger;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import application.Main;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.ButtonType;
import javafx.scene.control.TextField;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;
public class LoginController {
private Scene scene;
@FXML
private TextField databaseUserName;
@FXML
private TextField databasePassword;
@FXML
private AnchorPane mainPageAnchorPane;
private static SessionFactory sessionFactory = null;
//Controller method to handle the click of the Database Login button
//This method needs to try and setup a database connection based on the credentials provided
//and advance to the next stage if it is successfull in establishing the connection
//If the credentials entered are incorrect an error message must be displayed and the
//control must remain in the same page.
@FXML
public void handleLoginButtonClick(ActionEvent actionEvent){
Session session = null;
try{
Configuration configuration = new Configuration();
//configuration.configure("applicationConfig.xml");
configuration.configure("applicationConfig.xml");
configuration.setProperty("hibernate.connection.username",databaseUserName.getText());
configuration.setProperty("hibernate.connection.password",databasePassword.getText());
System.out.println("Configuration was successful");
System.out.println(configuration.getProperty("connection.username"));
System.out.println(configuration.getProperty("hibernate.connection.password"));
//Create the session factory
sessionFactory = configuration.buildSessionFactory();
//Get the session object
session = sessionFactory.getCurrentSession();
//Begin the transaction
Transaction transaction = session.beginTransaction();
System.out.println("Connection successful");
//some problem here debug this tomorrow
AnchorPane root = new AnchorPane();
Scene scene = new Scene(root,650,800);
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("/com/gsx/frontend/mainPage.fxml"));
System.out.println(fxmlLoader);
scene.setRoot((Parent)fxmlLoader.load());
Main.stage.setScene(scene);
Main.stage.show();
}
catch(Exception exception){
exception.printStackTrace();
Alert alert = new Alert(AlertType.ERROR, "The login information is incorrect",ButtonType.OK);
alert.setTitle("Invalid Cred!!");
alert.show();
if(alert.getResult() == ButtonType.OK){
}
}
finally{
System.out.println("Finally Block to take care of closing the session and the session Factory");
if(null!=session){
System.out.println("Session is not Null. Closing it");
session.close();
}
}
}
//Method to show the Login Screen
public void showLoginScreen(){
try{
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("login.fxml"));
scene.setRoot((Parent)fxmlLoader.load());
}
catch(IOException exception){
Logger.getLogger(LoginController.class.getName());
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
}
你能帮我解决我做错了什么吗?
【问题讨论】:
-
请创建一个minimal reproducible example 并将其发布在问题中,而不是链接到代码。如果链接因任何原因失效,则该问题对其他用户毫无用处。
-
@James_D - 我添加了评论,您可以删除否决票吗?
-
不过,以后请发帖minimal reproducible example。您发布的内容不是最少的(它包含各种不相关的代码,例如与您所询问的内容无关的数据库连接)并且不完整(无法复制、编译和按原样运行)。
-
@James_D 当然还在学习。一定会记住这一点。谢谢:)
标签: javafx scene stage fxmlloader