Wieso kann ich das jar file nicht starten?

[Timo Frenzel]

Hi Leute,
Ich bin jetzt doch etwas weiter gekommen.
Unter netbeans und eclipse kann ich das Prog auch starten.
Warum startet es sich nicht wenn, ich ein ausführbares jar erstelle und dieses mit java öffnen möchte?


Wenn einer testen will...

https://github.com/TimoFrenzel/MidgardCharGen

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package main;

import java.awt.Graphics;
import java.awt.Image;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import javax.swing.JFrame;
import javax.imageio.*;
import javax.swing.JPanel;


/**
 *
 * @author Timo Frenzel
 */
public class MidgardCharGen extends JFrame {

    /**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private Image image;
    /**
     * Creates new form CharGenFrame
     */
    public MidgardCharGen() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    
    private void initComponents() {

        backgroundPanel = new ImagePane();
        jComboBox1 = new javax.swing.JComboBox<String>();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jComboBox2 = new javax.swing.JComboBox<String>();
        mainMenueBar = new javax.swing.JMenuBar();
        fileItem = new javax.swing.JMenu();
        newCharItem = new javax.swing.JMenuItem();
        loadCharItem = new javax.swing.JMenuItem();
        saveCharItem = new javax.swing.JMenuItem();
        printCharItem = new javax.swing.JMenuItem();
        helpItem = new javax.swing.JMenu();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Midgard Charakter Generator");
        setResizable(false);
        addWindowListener(new java.awt.event.WindowAdapter() {
            public void windowOpened(java.awt.event.WindowEvent evt) {
                formWindowOpened(evt);
            }
        });

        backgroundPanel.setBackground(new java.awt.Color(204, 204, 204));
        backgroundPanel.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
        backgroundPanel.setMaximumSize(new java.awt.Dimension(880, 500));
        backgroundPanel.setMinimumSize(new java.awt.Dimension(880, 500));
        backgroundPanel.setPreferredSize(new java.awt.Dimension(880, 500));

        jComboBox1.setMaximumRowCount(50);
        jComboBox1.setModel(new javax.swing.DefaultComboBoxModel<String>(new String[] { "Auswählen" }));
        jComboBox1.removeAllItems();

        try {
            final InputStream inputStream = getClass().getResourceAsStream("../textfiles/groups.txt");
            final InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
            final BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            //final List<String> list = new ArrayList<String>();
            while (bufferedReader.ready())
            {
                jComboBox1.addItem(bufferedReader.readLine());
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        jComboBox1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox1ActionPerformed(evt);
            }
        });

        jLabel1.setText("Abenteuergruppe");

        jLabel2.setText("Abenteuertyp");

        jComboBox2.setModel(new javax.swing.DefaultComboBoxModel<String>(new String[] { "Auswählen" }));

        javax.swing.GroupLayout backgroundPanelLayout = new javax.swing.GroupLayout(backgroundPanel);
        backgroundPanel.setLayout(backgroundPanelLayout);
        backgroundPanelLayout.setHorizontalGroup(
            backgroundPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(backgroundPanelLayout.createSequentialGroup()
                .addContainerGap()
                .addGroup(backgroundPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 202, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel2))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(backgroundPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(jComboBox1, 0, 320, Short.MAX_VALUE)
                    .addComponent(jComboBox2, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addContainerGap(392, Short.MAX_VALUE))
        );
        backgroundPanelLayout.setVerticalGroup(
            backgroundPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(backgroundPanelLayout.createSequentialGroup()
                .addGap(25, 25, 25)
                .addGroup(backgroundPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel1)
                    .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(backgroundPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(jComboBox2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap(483, Short.MAX_VALUE))
        );

        fileItem.setText("Datei");

        newCharItem.setText("Neuer Char");
        fileItem.add(newCharItem);

        loadCharItem.setText("Char laden");
        fileItem.add(loadCharItem);

        saveCharItem.setText("Char Speichern");
        fileItem.add(saveCharItem);

        printCharItem.setText("Char drucken");
        fileItem.add(printCharItem);

        mainMenueBar.add(fileItem);

        helpItem.setText("Hilfe");
        helpItem.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                helpItemMouseClicked(evt);
            }
        });
        mainMenueBar.add(helpItem);

        setJMenuBar(mainMenueBar);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(backgroundPanel, javax.swing.GroupLayout.PREFERRED_SIZE, 934, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(0, 0, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(backgroundPanel, javax.swing.GroupLayout.PREFERRED_SIZE, 566, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(0, 0, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>                        

    private void helpItemMouseClicked(java.awt.event.MouseEvent evt) {                                      
        // TODO add your handling code here:
        if (getTitle().indexOf(" :: Hilfe") == -1) {
            setTitle(getTitle() + " :: Hilfe");            
        }
    }                                     

    private void formWindowOpened(java.awt.event.WindowEvent evt) {                                  
        // TODO add your handling code here:
        try {
            image = ImageIO.read(getClass().getResource("../images/background.jpg"));
        }catch(IOException e) {
            e.printStackTrace();
        }   
    }                                 

    private void jComboBox1ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        // TODO add your handling code here:
        //System.out.println(jComboBox1.getSelectedItem());
        //System.out.println(jComboBox1.getSelectedIndex());
        jComboBox2.removeAllItems();
        
        try {
            String filepath = "../textfiles/types_" + jComboBox1.getSelectedIndex() + ".txt";
            
            //System.out.println(filepath);
            
            InputStream inputStream = getClass().getResourceAsStream(filepath);
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            //final List<String> list = new ArrayList<String>();
            while (bufferedReader.ready())
            {
                jComboBox2.addItem(bufferedReader.readLine());
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        jComboBox1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jComboBox1ActionPerformed(evt);
            }
        });
    }                                          
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see [url=http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html]How to Set the Look and Feel (The Java™ Tutorials > Creating a GUI With JFC/Swing > Modifying the Look and Feel)[/url] 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Windows".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(MidgardCharGen.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(MidgardCharGen.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(MidgardCharGen.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(MidgardCharGen.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                JFrame CharGenFrame = new MidgardCharGen();
                CharGenFrame.setVisible(true);
            }
        });
    }
    
    private class ImagePane extends JPanel {
        /**
		 * 
		 */
		private static final long serialVersionUID = 1L;

		protected void paintComponent(Graphics g) {
           super.paintComponents(g);
           if(image != null) {
              g.drawImage(image, 0, 0, this);
           }
        }
    }

    // Variables declaration - do not modify                     
    private javax.swing.JPanel backgroundPanel;
    private javax.swing.JMenu fileItem;
    private javax.swing.JMenu helpItem;
    private javax.swing.JComboBox<String> jComboBox1;
    private javax.swing.JComboBox<String> jComboBox2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JMenuItem loadCharItem;
    private javax.swing.JMenuBar mainMenueBar;
    private javax.swing.JMenuItem newCharItem;
    private javax.swing.JMenuItem printCharItem;
    private javax.swing.JMenuItem saveCharItem;
    // End of variables declaration                   
}

 

[Gucky]

"es startet nicht".
Wie meinst du das?
Passiert einfach nichts? Bekommst du eine Fehlermeldung? etc.?

 

[Timo Frenzel]

Es passiert einfach gar nichts.
Jars sind mit java verknüpft.
Doppelklick auf das File und nichts passiert.

 

[franky27]

Hast du es mal via Konsole gestartet? java -jar file.jar ?

 

[Timo Frenzel]

ahhh ok, da kommt dann ja mal ne fehlermeldung...
er kann die Files nicht finden...

final InputStream inputStream = getClass().getResourceAsStream("../textfiles/groups.txt");
final InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
final BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

Dachte mit getResourceAsStream gebe ichg den Pfad relativ zur klasse an.?

 

[Timo Frenzel]

ich hab es danke.
final InputStream inputStream = getClass().getResourceAsStream("../textfiles/groups.txt"); -> läuft in Eclipse

final InputStream inputStream = getClass().getResourceAsStream("/textfiles/groups.txt"); -> läuft in Eclipse und auch wenn ich das jar öffne