我正在尝试运行我的JNLP文件。我已经创建了JavaFX应用程序的ExecutableJar，并使用jarsigner命令对其进行了签名。我的jnlp文件看起来像这样：
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" href="myjnlp.jnlp">
<information>
<title>MyApplication</title>
<vendor>Me</vendor>
</information>
<resources>
<!-- Application Resources -->
<j2se version="1.7+"
href="http://java.sun.com/products/autodl/j2se"/>
<jar href="myapp.jar"
main="true" />
<security>
<all-permissions/>
</security>
</resources>
<application-desc
name="MyApplication"
main-class=
"pl.package.Main"
width="300"
height="300">
</application-desc>
<update check="background"/>
</jnlp>
运行它时出现错误：
java.security.AccessControlException: access denied ("java.util.PropertyPermission" "javafx.preloader" "read")
java.security.AccessControlException: access denied ("java.util.PropertyPermission" "javafx.preloader" "read")
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at com.sun.javaws.security.JavaWebStartSecurity.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPropertyAccess(Unknown Source)
at java.lang.System.getProperty(Unknown Source)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$158(LauncherImpl.java:130)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:129)
at javafx.application.Application.launch(Application.java:252)
at pl.package.Main.main(Main.java:36)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.javaws.Launcher.executeApplication(Unknown Source)
at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
at com.sun.javaws.Launcher.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
jar文件运行没有任何问题，但是当我尝试运行jnlp文件时（据我了解，该文件基本上尝试执行jar文件），然后出现了问题。 我在做什么错？？
Main.java
package pl.package;
import javafx.application.Application;
import javafx.concurrent.Service;
import javafx.fxml.FXMLLoader;
import javafx.stage.Stage;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.canvas.GraphicsContext;
public class Main extends Application {
static Stage window;
@Override
public void start(Stage primaryStage) {
try {
window = primaryStage;
Parent root = FXMLLoader.load(getClass().getResource("/MainScreen.fxml"));
Scene scene = new Scene(root);
scene.getStylesheets().add("/application.css");
window.setTitle("Diffraction and Interference");
Main.window.setResizable(false);
window.setScene(scene);
window.show();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
MainController.java
package pl.package;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import javax.imageio.ImageIO;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileSystemView;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.animation.TranslateTransition;
import javafx.application.Platform;
import javafx.beans.binding.Bindings;
import javafx.embed.swing.SwingFXUtils;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.SnapshotParameters;
import javafx.scene.chart.LineChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.control.Button;
import javafx.scene.control.ColorPicker;
import javafx.scene.control.MenuBar;
import javafx.scene.control.MenuItem;
import javafx.scene.control.RadioButton;
import javafx.scene.control.Slider;
import javafx.scene.control.TextField;
import javafx.scene.control.ToggleGroup;
import javafx.scene.image.WritableImage;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Arc;
import javafx.scene.shape.Rectangle;
import javafx.stage.FileChooser;
import javafx.stage.Stage;
import javafx.util.Duration;
import jxl.*;
import jxl.read.biff.BiffException;
import jxl.write.Label;
import jxl.write.WritableCell;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;
public class MainController {
@FXML
private Pane pane;
@FXML
private VBox vbox;
@FXML
private HBox hbox;
@FXML
private TextField slitsNumber, intensity, slitsDistance, lambda, distanceScreen;
@FXML
private LineChart<Number, Number> chart;
@FXML
private NumberAxis xAxis;
@FXML
private NumberAxis yAxis;
@FXML
private Button chartBtn, moreBtn;
@FXML
private int slits;
@FXML
private MenuItem closeItem, saveItem, excelOpen, aboutProgram, moreURL, settings;
@FXML
private RadioButton chartPhase, chartTheta, chartY;
@FXML
private ToggleGroup group;
@FXML
private double d, theta, I0, L, waveLambda;
@FXML
private MenuBar menubar;
double max = 0;
@FXML
private Slider mySlider;
@FXML
private Node rect1,rect2, rect3, rect4, rect5;;
@FXML
private Button waveColorButton;
@FXML
private ColorPicker colorPicker = new ColorPicker(Color.BLUE);
@FXML
private Arc arc1, arc2, arc3, arc4, arc5, arc6, arc7, arc8, arc9, arc10, arc11;
@FXML
private Arc arc12, arc22, arc32, arc42, arc52, arc62, arc72, arc82, arc92, arc102, arc112;
@FXML
private Arc arc13, arc23, arc33, arc43, arc53, arc63, arc73, arc83, arc93, arc103, arc113;
@FXML
private Arc arc14, arc24, arc34, arc44, arc54, arc64, arc74, arc84, arc94, arc104, arc114;
@FXML
private Rectangle slitRectangle1, slitRectangle2, slitRectangle3, slitRectangle4, slitRectangle5, slitRectangle6, slitRectangle7, slitRectangle8, slitRectangle9, slitRectangle10, slitRectangle11;
private ArrayList<Arc> circleList1 = new ArrayList<Arc>();
private ArrayList<Arc> circleList2 = new ArrayList<Arc>();
private ArrayList<Arc> circleList3 = new ArrayList<Arc>();
private ArrayList<Arc> circleList4 = new ArrayList<Arc>();
private ArrayList<Rectangle> slitList = new ArrayList<Rectangle>();
private ArrayList<Rectangle> rectangleList = new ArrayList<Rectangle>();
double phase, phase2;
double width, min, submax;
String widthParse, minParse, submaxParse;
double[] tableY = new double[401];
private RadioButton selectedRadioButton;
private String toogleGroupValue;
private Boolean dataEntered = false;
int excelCounter = 0;
boolean startOrStopValue = false;
int defaultStroke = 1;
public void initialize() throws InterruptedException {
rectangleList.add((Rectangle)rect1);
rectangleList.add((Rectangle)rect2);
rectangleList.add((Rectangle)rect3);
rectangleList.add((Rectangle)rect4);
rectangleList.add((Rectangle)rect5);
animatePlainWave(rect1,0);
animatePlainWave(rect2,1.4);
animatePlainWave(rect3,2.8);
animatePlainWave(rect4,4.2);
animatePlainWave(rect5,5.6);
circleList1.add(arc1);
circleList1.add(arc2);
circleList1.add(arc3);
circleList1.add(arc4);
circleList1.add(arc5);
circleList1.add(arc6);
circleList1.add(arc7);
circleList1.add(arc8);
circleList1.add(arc9);
circleList1.add(arc10);
circleList1.add(arc11);
circleList2.add(arc12);
circleList2.add(arc22);
circleList2.add(arc32);
circleList2.add(arc42);
circleList2.add(arc52);
circleList2.add(arc62);
circleList2.add(arc72);
circleList2.add(arc82);
circleList2.add(arc92);
circleList2.add(arc102);
circleList2.add(arc112);
circleList3.add(arc13);
circleList3.add(arc23);
circleList3.add(arc33);
circleList3.add(arc43);
circleList3.add(arc53);
circleList3.add(arc63);
circleList3.add(arc73);
circleList3.add(arc83);
circleList3.add(arc93);
circleList3.add(arc103);
circleList3.add(arc113);
circleList4.add(arc14);
circleList4.add(arc24);
circleList4.add(arc34);
circleList4.add(arc44);
circleList4.add(arc54);
circleList4.add(arc64);
circleList4.add(arc74);
circleList4.add(arc84);
circleList4.add(arc94);
circleList4.add(arc104);
circleList4.add(arc114);
slitList.add(slitRectangle1);
slitList.add(slitRectangle2);
slitList.add(slitRectangle3);
slitList.add(slitRectangle4);
slitList.add(slitRectangle5);
slitList.add(slitRectangle6);
slitList.add(slitRectangle7);
slitList.add(slitRectangle8);
slitList.add(slitRectangle9);
slitList.add(slitRectangle10);
slitList.add(slitRectangle11);
slitList.forEach((n) -> n.setFill(Color.TRANSPARENT));
rectangleList.forEach((n) -> n.setStrokeWidth(0));
rectangleList.forEach((n) -> n.setFill(Color.TRANSPARENT));
circleList1.forEach((n) -> animateCircle(n,0));
circleList1.forEach((n) -> n.setFill(null));
circleList1.forEach((n) -> n.toBack());
circleList1.forEach((n) -> n.setStrokeWidth(0));
circleList2.forEach((n) -> animateCircle(n,1));
circleList2.forEach((n) -> n.setFill(null));
circleList2.forEach((n) -> n.toBack());
circleList2.forEach((n) -> n.setStrokeWidth(0));
circleList3.forEach((n) -> animateCircle(n,2));
circleList3.forEach((n) -> n.setFill(null));
circleList3.forEach((n) -> n.toBack());
circleList3.forEach((n) -> n.setStrokeWidth(0));
circleList4.forEach((n) -> animateCircle(n,3));
circleList4.forEach((n) -> n.setFill(null));
circleList4.forEach((n) -> n.toBack());
circleList4.forEach((n) -> n.setStrokeWidth(0));
chart.setTitle("Intensity Interference Pattern");
xAxis.setAutoRanging(true);
xAxis.setAutoRanging(true);
yAxis.setAutoRanging(true);
yAxis.setLowerBound(0);
yAxis.setTickUnit(10);
group = new ToggleGroup();
chartPhase.setToggleGroup(group);
chartTheta.setToggleGroup(group);
chartY.setToggleGroup(group);
chartPhase.setSelected(true);
}
@FXML
public void parsing () {
try {
I0 = Double.parseDouble(intensity.getText());
System.out.println("Io: " + I0);
d = Double.parseDouble(slitsDistance.getText());
System.out.println("d: " + d);
L = Double.parseDouble(distanceScreen.getText());
System.out.println("L: " + L);
waveLambda = Double.parseDouble(lambda.getText());
System.out.println("waveLambda: " + waveLambda);
slits = Integer.parseInt(slitsNumber.getText());
System.out.println("Slits number entered: " + slits);
if(slitsCheck()==true && startOrStopValue == true)
{
activateSlits(slits);
}
dataEntered = true;
} catch (NumberFormatException e) {
showDialog("Data Entered Error Message", "Every textfield must me filled!" + "\n" + "Only numbers can be entered!");
}
}
public boolean slitsCheck()
{
if(slits<1 || slits>11)
{
showDialog("Data Entered Error Message", "Slits number must be between 1 and 11");
return false;
}
else
{
return true;
}
}
@FXML
public void drawChart(ActionEvent e) {
if(dataEntered) {
selectedRadioButton = (RadioButton) group.getSelectedToggle();
toogleGroupValue = selectedRadioButton.getText();
chart.setTitle("Intensity Interference Pattern" + " " + toogleGroupValue );
chart.getData().clear();
System.out.println("Drawing chart is begining...");
xAxis.setLabel("Phi [rad]");
yAxis.setLabel("Intensity [W/m^2]");
XYChart.Series<Number, Number> data1 = new XYChart.Series<Number, Number>();
double n = -200;
double j = -200;
tableY[0] = 0;
if(chartPhase.isSelected()) {
System.out.println("Phase chart starts drawing...");
for(int i = 0; i < 401; i++) {
tableY[i] = I0*(Math.sin(slits*0.5*n))*(Math.sin(slits*0.5*n))/((Math.sin(0.5*n))*(Math.sin(0.5*n)));
n += 0.01;
j++;
data1.getData().add(new XYChart.Data<>(j, tableY[i]));
}
}else if(chartTheta.isSelected()) {
System.out.println("Theta chart starts drawing...");
for(int i = 0; i < 401; i++) {
tableY[i] = I0*(Math.sin(slits*d*Math.sin(n)*Math.PI/waveLambda))*(Math.sin(slits*d*Math.sin(n)*Math.PI/waveLambda))/((Math.sin(d*Math.sin(n)*Math.PI/waveLambda))*(Math.sin(d*Math.sin(n)*Math.PI/waveLambda)));
n += 0.01;
j++;
data1.getData().add(new XYChart.Data<>(j, tableY[i]));
}
}else if (chartY.isSelected()) {
for(int i = 0; i < 401; i++) {
tableY[i] = I0*(Math.sin(slits*d*n/(waveLambda*L)))*(Math.sin(slits*d*n/(waveLambda*L)))/((Math.sin(d*n/(waveLambda*L)))*(Math.sin(d*n/(waveLambda*L))));
n += 0.01;
j++;
data1.getData().add(new XYChart.Data<>(j, tableY[i]));
}
}
yAxis.setUpperBound(max*1.1);
data1.setName(slitsNumber.getText());
chart.getData().add(data1);
chart.setLegendVisible(true);
chart.setCreateSymbols(false);
}else {
System.out.println("Data entered missing");
showDialog("Data Message", "Please, type data in every texfield!" + "\n" + "Use only whole numbers!");
}
}
public void openWindow() {
System.out.println("Trying to open a second window...");
try {
FXMLLoader loader = new FXMLLoader(getClass().getResource("/SecondScreen.fxml"));
Parent root = loader.load();
SecondController secondController = loader.getController();
this.calculate();
secondController.setCalculations(widthParse, minParse, submaxParse);
Stage newWindow = new Stage();
newWindow.setTitle("Calculations");
Scene scene2 = new Scene(root, 640,480);
newWindow.setScene(scene2);
scene2.getStylesheets().add("/application2.css");
newWindow.show();
}catch (IOException e){
System.out.println("Data missing");
System.out.println("Catched: " + e);
showDialog("Data Missing Message", "Please, type data in every texfield!" + "\n" + "Use only numbers!");
}
}
public void calculate() {
phase = 360/slits;
//theta in degrees
theta = phase*waveLambda/(d*360*1000000)*180/Math.PI;
width = 2*theta;
widthParse = Double.toString(width);
//minimum in mm
min = phase*waveLambda*L/(d*360*1000);
minParse =Double.toString(min);
//submax in degrees
try {
phase2 = 2*360/(slits-1);
submax = Math.asin(phase2*waveLambda/(d*360*1000000))*180/Math.PI;
submaxParse = Double.toString(submax);
}catch (ArithmeticException e) {
System.out.println("N cannot be 1 when calculating subsidiary maximum!");
System.out.println("Catched: " + e);
if(slits == 1)
showDialog("Calculating subsidiary maximum error","2nd subsidiary maximum does not exist");
}
}
@FXML
public void closeProgram() {
Platform.exit();
}
@FXML
public void saveAsPng() {
System.out.println("Chart saving starts...");
WritableImage image =chart.snapshot(new SnapshotParameters(), null);
FileChooser fileChooser = new FileChooser();
File file = fileChooser.showSaveDialog(null);
try {
ImageIO.write(SwingFXUtils.fromFXImage(image, null), "png", file);
System.out.println("Saved in: " + file.getAbsolutePath());
} catch (IOException e) {
System.out.println("Unable to save ");
System.out.println("Catched: " + e);
}
}
@FXML
public void info() {
showDialog("About program", "Program shows the diffraction and interference on N slits (diffraction grating).");
}
public void showDialog(String title, String text) {
Alert alert = new Alert(AlertType.INFORMATION);
alert.setTitle(title);
alert.setHeaderText(null);
alert.setContentText(text);
alert.showAndWait();
}
@FXML
public void saveExcel() throws BiffException, IOException, RowsExceededException, WriteException
{
boolean doWeHaveAllInts = true;
try
{
Integer.parseInt(slitsDistance.getText());
Integer.parseInt(slitsNumber.getText());
Integer.parseInt(intensity.getText());
Integer.parseInt(lambda.getText());
Integer.parseInt(distanceScreen.getText());
}
catch (NumberFormatException e)
{
doWeHaveAllInts = false;
}
if(doWeHaveAllInts == true)
{
try {
System.out.println("Excel workbook saving starts...");
WritableWorkbook myFirstWbook = null;
File file = new File("resources/workbook"+excelCounter+".xls");
myFirstWbook = Workbook.createWorkbook(file);
WritableSheet excelSheet = myFirstWbook.createSheet("Sheet1", 0);
Label label = new Label(0, 0, "Distance between slits");
jxl.write.Number number = new jxl.write.Number(0,1,Integer.parseInt(slitsDistance.getText()));
excelSheet.addCell(label);
excelSheet.addCell((WritableCell) number);
label = new Label(1, 0, "Slits number");
number = new jxl.write.Number(1,1,Integer.parseInt(slitsNumber.getText()));
excelSheet.addCell(label);
excelSheet.addCell((WritableCell) number);
label = new Label(2, 0, "Wave intensity");
number = new jxl.write.Number(2,1,Integer.parseInt(intensity.getText()));
excelSheet.addCell(label);
excelSheet.addCell((WritableCell) number);
label = new Label(3, 0, "Wavelength");
number = new jxl.write.Number(3,1,Integer.parseInt(lambda.getText()));
excelSheet.addCell(label);
excelSheet.addCell((WritableCell) number);
label = new Label(4, 0, "Distance to screen");
number = new jxl.write.Number(4,1,Integer.parseInt(distanceScreen.getText()));
excelSheet.addCell(label);
excelSheet.addCell((WritableCell) number);
myFirstWbook.write();
myFirstWbook.close();
System.out.println("Saved in: " + file.getAbsolutePath());
showDialog("Information", "Saved in: " + file.getAbsolutePath());
}
catch (Exception e) //tutaj taki wyjatek a nie IOException, bo mozliwy wyjatek to RuntimeException, ktory sie pojawia jak chcemy zapisac stringa zamiast inta
{
System.out.println("Unable to save ");
System.out.println("Catched: " + e);
}
excelCounter++;
}
else
{
showDialog("Warning","Please enter only numerical values");
}
}
@FXML
public void loadExcel() throws BiffException, IOException, RowsExceededException, WriteException
{
System.out.println("Excel workbook loading starts...");
Workbook workbook;
File file = null;
JFileChooser jfc = new JFileChooser(FileSystemView.getFileSystemView().getHomeDirectory());
int returnValue = jfc.showOpenDialog(null);
if (returnValue == JFileChooser.APPROVE_OPTION)
{
try
{
file = jfc.getSelectedFile();
workbook = Workbook.getWorkbook(file); //tu byl jakis warning o static-accesie ale go jakos (?) naprawilem
Sheet sheet = workbook.getSheet(0);
Cell cell0 = sheet.getCell(0, 1);
slitsDistance.setText((cell0.getContents()));
Cell cell1 = sheet.getCell(1, 1);
slitsNumber.setText((cell1.getContents()));
Cell cell2 = sheet.getCell(2, 1);
intensity.setText((cell2.getContents()));
Cell cell3 = sheet.getCell(3, 1);
lambda.setText((cell3.getContents()));
Cell cell4 = sheet.getCell(4, 1);
distanceScreen.setText((cell4.getContents()));
}
catch(Exception e)
{
System.out.println("Exception: " + e);
}
}
else
{
System.out.println("You didn't select a file");
}
}
@FXML
public void changeWaveColor()
{
rectangleList.forEach((n) -> n.setStroke(colorPicker.getValue()));
circleList1.forEach((n) -> n.setStroke(colorPicker.getValue())); //wlaczenie animacji
circleList2.forEach((n) -> n.setStroke(colorPicker.getValue()));
circleList3.forEach((n) -> n.setStroke(colorPicker.getValue())); //wlaczenie animacji
circleList4.forEach((n) -> n.setStroke(colorPicker.getValue()));
}
public void animatePlainWave(Node rectangle, double seconds)
{
TranslateTransition rectangleTransition = new TranslateTransition();
rectangleTransition.setDuration(Duration.seconds(rectangle.getLayoutY()/100)); //czas jaki trwa animacja
rectangleTransition.setToY(850-rectangle.getLayoutY()); //koniec drogi
rectangleTransition.setAutoReverse(false);
rectangleTransition.setCycleCount(TranslateTransition.INDEFINITE); //zapetlenie
rectangleTransition.setNode(rectangle);
rectangleTransition.rateProperty().bind(Bindings.divide(1d, mySlider.valueProperty()));
rectangleTransition.setDelay(Duration.seconds(seconds));
rectangleTransition.play();
}
@FXML
private void activateSlits(int n)
{
circleList1.forEach((m) -> m.setStrokeWidth(0));
circleList2.forEach((m) -> m.setStrokeWidth(0));
circleList3.forEach((m) -> m.setStrokeWidth(0));
circleList4.forEach((m) -> m.setStrokeWidth(0));
slitList.forEach((m)->m.setFill(Color.TRANSPARENT));
rectangleList.forEach((m)->m.setStrokeWidth(2));
for(int i=0; i<n; i++)
{
circleList1.get(i).setStrokeWidth(1);
circleList2.get(i).setStrokeWidth(1);
circleList3.get(i).setStrokeWidth(1);
circleList4.get(i).setStrokeWidth(1);
slitList.get(i).setFill(Color.WHITE);
if(n%2==0)
{
circleList1.get(0).setStrokeWidth(0);
circleList2.get(0).setStrokeWidth(0);
circleList3.get(0).setStrokeWidth(0);
circleList4.get(0).setStrokeWidth(0);
slitList.get(0).setFill(Color.TRANSPARENT);
circleList1.get(n).setStrokeWidth(1);
circleList2.get(n).setStrokeWidth(1);
circleList3.get(n).setStrokeWidth(1);
circleList4.get(n).setStrokeWidth(1);
slitList.get(n).setFill(Color.WHITE);
}
}
}
private void animateCircle(Arc arc,double seconds)
{
final Timeline timeline = new Timeline();
final KeyValue kv = new KeyValue(arc.radiusXProperty(), 500);
final KeyValue kv2 = new KeyValue(arc.radiusYProperty(),500);
final KeyFrame kf = new KeyFrame(Duration.seconds(6), kv);
final KeyFrame kf2 = new KeyFrame(Duration.seconds(6),kv2);
timeline.setCycleCount(Timeline.INDEFINITE);
timeline.setAutoReverse(false);
timeline.setDelay(Duration.seconds(seconds));
timeline.rateProperty().bind(Bindings.divide(1d, mySlider.valueProperty()));
timeline.getKeyFrames().add(kf);
timeline.getKeyFrames().add(kf2);
timeline.play();
}
@FXML
private void startOrStopAnimation()
{
if(dataEntered == true)
{
if(startOrStopValue==true) //stop
{
rectangleList.forEach((n) -> n.setFill(Color.TRANSPARENT));
rectangleList.forEach((n) -> n.setStrokeWidth(0));
circleList1.forEach((m) -> m.setStrokeWidth(0));
circleList2.forEach((m) -> m.setStrokeWidth(0));
circleList3.forEach((m) -> m.setStrokeWidth(0));
circleList4.forEach((m) -> m.setStrokeWidth(0));
rectangleList.forEach((n) -> n.setStrokeWidth(0));
slitList.forEach((m)->m.setFill(Color.TRANSPARENT));
startOrStopValue=false;
}
else
{
if(slitsCheck()==true) //start
{
activateSlits(slits);
}
startOrStopValue=true;
}
}
else
{
showDialog("Error","No data");
}
}
public void openWindowThree() {
System.out.println("Trying to open a third window...");
try {
FXMLLoader loader = new FXMLLoader(getClass().getResource("/ThirdScreen.fxml"));
Parent root = loader.load();
ThirdController thirdController = loader.getController();
Stage newWindow = new Stage();
newWindow.setTitle("Find out more");
Scene scene3 = new Scene(root, 960,540);
newWindow.setScene(scene3);
scene3.getStylesheets().add("/application3.css");
newWindow.show();
}catch (IOException e){
System.out.println("Catched: " + e);
}
}
@FXML
public void toURL() {
openWindowThree();
}
}
SecondController.java
package pl.package;
import javafx.fxml.FXML;
import javafx.scene.control.Label;
public class SecondController {
@FXML
private Label centralMax;
@FXML
private Label firstMin;
@FXML
private Label subMax;
@FXML
private Label centralMaxLabel;
@FXML
private Label firstMinLabel;
@FXML
private Label subMaxLabel;
public void initialize() {
}
public void setCalculations(String centralmax, String firstmin, String submax){
centralMaxLabel.setText(centralmax);
firstMinLabel.setText(firstmin);
subMaxLabel.setText(submax);
}
}
ThirdController.java
package pl.package;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
public class ThirdController implements Initializable {
@FXML
private WebView webView;
@FXML
private Button reloabBtn;
private WebEngine engine;
public void initialize(URL location, ResourceBundle resources) {
engine = webView.getEngine();
}
public void loadURL(ActionEvent event) {
System.out.println("Opening page...");
engine.load("https://opentextbc.ca/physicstestbook2/chapter/multiple-slit-diffraction/");
}
}
答案 0 :(得分：0)
将xml文件更新为此：
<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" href="myjnlp.jnlp">
<information>
<title>MyApplication</title>
<vendor>Me</vendor>
</information>
<resources>
<!-- Application Resources -->
<j2se version="1.7+"
href="http://java.sun.com/products/autodl/j2se"/>
<jar href="myapp.jar"
main="true" />
</resources>
<security>
<all-permissions />
</security>
<application-desc
name="MyApplication"
main-class=
"pl.package.Main"
width="300"
height="300">
</application-desc>
<update check="background"/>
</jnlp>
以下标记不应位于<resources></resources>内：
<security>
<all-permissions />
</security>