"C:\Program Files\Java\jdk1.8.0_191\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2018.3.3\lib\idea_rt.jar=54027:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2018.3.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_191\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\rt.jar;C:\Users\HP\Desktop\projects\Kursovoi_OOP\out\production\Kursovoi_OOP;C:\Program Files (x86)\MySQL\Connector J 8.0\mysql-connector-java-8.0.15.jar" sample.Main Exception in Application start method java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389) at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767) Caused by: java.lang.RuntimeException: Exception in Application start method at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917) at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$154(LauncherImpl.java:182) at java.lang.Thread.run(Thread.java:748) Caused by: javafx.fxml.LoadException: /C:/Users/HP/Desktop/projects/Kursovoi_OOP/out/production/Kursovoi_OOP/sample/MainForm.fxml:8 at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601) at javafx.fxml.FXMLLoader.access$700(FXMLLoader.java:103) at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:922) at javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(FXMLLoader.java:971) at javafx.fxml.FXMLLoader$Element.processStartElement(FXMLLoader.java:220) at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:744) at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2707) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2527) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124) at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104) at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097) at sample.Main.start(Main.java:32) at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$161(LauncherImpl.java:863) at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$174(PlatformImpl.java:326) at com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295) at java.security.AccessController.doPrivileged(Native Method) at com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294) at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95) at com.sun.glass.ui.win.WinApplication._runLoop(Native Method) at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177) ... 1 more Caused by: java.lang.ClassNotFoundException: MainController.java at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:920) ... 22 more Exception running application sample.Main Process finished with exit code 1 Main.java: package sample; import javafx.application.Application; import javafx.fxml.FXMLLoader; import javafx.scene.Parent; import javafx.scene.Scene; import javafx.scene.control.Alert; import javafx.stage.Stage; import java.io.IOException; import java.sql.SQLException; public class Main extends Application { public static Stage stage; public static DatabaseHandler dbHandler = new DatabaseHandler(); @Override public void start(Stage primaryStage) throws IOException { //проверка соединения с БД try { DatabaseHandler.dbConnection = dbHandler.getDbConnection(); } catch (ClassNotFoundException | SQLException e1) { Alert alert = MainController.alert(Alert.AlertType.INFORMATION, "Сообщение", "Соединение с БД не установлено"); alert.showAndWait(); return; } stage = primaryStage; Parent pane = FXMLLoader.load(getClass().getResource("MainForm.fxml")); Scene scene = new Scene(pane); primaryStage.setScene(scene); primaryStage.setTitle("Отдел кадров МММК"); primaryStage.setHeight(700); primaryStage.setWidth(1000); primaryStage.show(); } public static void main(String[] args) { launch(args); } } MainController.java : введите сpackage sample; import javafx.event.ActionEvent; import javafx.event.EventHandler; 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.MenuItem; import javafx.stage.Stage; import javafx.stage.WindowEvent; import sample.Main; import java.io.IOException; public class MainController { @FXML void openStaffForm(ActionEvent event) throws IOException { //при выборе Сотрудники пункт меню делаем неактивным MenuItem mi = (MenuItem) event.getSource(); mi.setDisable(true); Parent pane = FXMLLoader.load(getClass().getResource("StaffForm.fxml")); Scene scene = new Scene(pane); Stage childStage = new Stage(); childStage.setScene(scene); childStage.initOwner(Main.stage);//окно будет выводиться поверх главного окна childStage.centerOnScreen(); childStage.setWidth(400); childStage.setHeight(300); childStage.show(); //обрабатываем закрытие окна childStage.setOnCloseRequest(new EventHandler<WindowEvent>() { public void handle(WindowEvent we) { mi.setDisable(false);//пункт меню Сотрудники делаем активным } }); } @FXML void openClientsForm(ActionEvent event) throws IOException { //при выборе Клиенты пункт меню делаем неактивным MenuItem mi = (MenuItem)event.getSource(); mi.setDisable(true); Parent pane = FXMLLoader.load(getClass().getResource("SpecialityForm.fxml")); Scene scene = new Scene(pane); Stage childStage = new Stage(); childStage.setScene(scene); childStage.initOwner(Main.stage);//окно будет выводиться поверх главного окна childStage.centerOnScreen(); childStage.setWidth(400); childStage.setHeight(300); childStage.show(); //обрабатываем закрытие окна childStage.setOnCloseRequest(new EventHandler<WindowEvent>() { public void handle(WindowEvent we) { mi.setDisable(false);//пункт меню Специальности и группы делаем активным } }); } //шаблон для информационных окон public static Alert alert(Alert.AlertType type, String title, String message) { Alert alert = new Alert(type); alert.setTitle(title); alert.setHeaderText(""); alert.setContentText(message); return alert; } } database.properties: url = jdbc:mysql://127.0.0.1/kursovoi?serverTimezone=UTC username = root password = 12345 MainForm.fxml: <?xml version="1.0" encoding="UTF-8"?> <?import javafx.scene.control.*?> <?import java.lang.*?> <?import javafx.scene.layout.*?> <BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="MainController.java"> <top> <MenuBar BorderPane.alignment="CENTER"> <menus> <Menu mnemonicParsing="false" text="Справочники"> <items> <MenuItem mnemonicParsing="false" onAction="#openStaffForm" text="Сотрудники" /> <MenuItem mnemonicParsing="false" onAction="#openClientsForm" text="Клиенты" /> </items> </Menu> <Menu mnemonicParsing="false" text="Реставрация"> <items> <MenuItem mnemonicParsing="false" text="Delete" /> </items> </Menu> </menus> </MenuBar> </top> </BorderPane> DatabaseHandler.java: package sample; import java.io.IOException; import java.io.InputStream; import java.nio.file.Files; import java.nio.file.Paths; import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import java.util.Properties; public class DatabaseHandler { public static Connection dbConnection; //подключиться к БД public Connection getDbConnection() throws SQLException, IOException, ClassNotFoundException { Properties props = new Properties(); try(InputStream in = Files.newInputStream(Paths.get("src\\sample\\database.properties"))){ props.load(in); } String url = props.getProperty("url"); String username = props.getProperty("username"); String password = props.getProperty("password"); dbConnection = DriverManager.getConnection(url, username, password); return dbConnection; } }

Closed due to the fact that off-topic participants 0xdb , freim , LFC , aleksandr barakin , Denis Bubnov April 2 at 16:18 .

It seems that this question does not correspond to the subject of the site. Those who voted to close it indicated the following reason:

  • “Questions asking for help with debugging (“ why does this code not work? ”) Should include the desired behavior, a specific problem or error, and a minimum code for playing it right in the question . Questions without an explicit description of the problem are useless for other visitors. See How to create minimal, self-sufficient and reproducible example . " - 0xdb, freim, LFC, Denis Bubnov
If the question can be reformulated according to the rules set out in the certificate , edit it .

  • format your question so that at least something is clear in it - michael_best 7:38 pm
  • enter cpackage sample; Is it right in the code? - dSH

1 answer 1

FXMLLoader cannot load MainForm.fxml because it cannot find the class MainController.java .

Try to specify the full name of the controller class in the MainForm.fxml file, that is, fx:controller="sample.MainController"