Impossible de trouver ou charger la Classe principale sur le POT d'exécution

J'ai fini mon projet (dans NetBeans) et je l'exportation Jar fichier (j'ai mis ma classe principale dans les propriétés du projet correctement avant de l'exporter Jar):

Maintenant, C'est mon JAR:

Cette Erreur s'affiche lorsque je lance le Jar (en ligne de commande page):

Could not find or load main Class on JAR executing

C'est mon MANIFEST.MF informations:

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.9.1
Created-By: 1.7.0_11-b21 (Oracle Corporation)
Class-Path: lib/mysql-connector-java-5.1.18-bin.jar
X-COMMENT: Main-Class will be added automatically by build
Main-Class: Project.LoginFrame

Toutes mes classes sont ici:

J'ai essayer en ligne de commande:

Mon projet exécuté à ce moment, Mais toutes les photos (qui sont dans un dossier) s'affiche pas, et aussi un sql Exception qui se passe:

Mise à jour:

package Project;
import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.plaf.nimbus.NimbusLookAndFeel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.sql.*;
public class LoginFrame extends javax.swing.JFrame implements ActionListener {
String dbUrl = "jdbc:mysql://localhost/Library";
private char[] Password;
private JButton ClearBtn,ExitBtn,LoginBtn;
private JLabel ErrorLbl;
private JComboBox comboBox;
private JLabel lbl1;
private JLabel lbl2;
private JLabel lbl3;
private String[] enterUserInf = new String[4];
private JPasswordField passwordField;
private JTextField usernameTF;
public LoginFrame() {
initComponents();
this.getRootPane().setDefaultButton(LoginBtn);
comboBox.addActionListener(this);
setVisible(true);
}
public static void main(String args[]) throws IOException {
new LoginFrame();
}
private void initComponents() {
//...
}
private void LoginButtonActionPerformed(java.awt.event.ActionEvent evt) {
try {
if (comboBox.getSelectedIndex() == 0) {
ErrorLbl.setText("Select A Model...");
ErrorLbl.setVisible(true);
return;
}
Password = passwordField.getPassword();
if (!passwordControl()) {
return;
}
if (comboBox.getSelectedIndex() == 1) {
if (userEnterCondition(Password)) {
this.setVisible(false);
new BookPage_User(enterUserInf, enterUserInf[0]);
} else {
ErrorLbl.setText("Incorrect Password!");
}
}
if (comboBox.getSelectedIndex() == 2) {
if (adminEnterCondition(Password)) {
this.setVisible(false);
new MainFrame().setVisible(true);
} else {
ErrorLbl.setText("Incorrect Password!");
}
}
} catch (Exception e) {
e.printStackTrace();
ErrorLbl.setText("Enter Correct Input");
}
}
private void ExitButtonActionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
}
private void ClearButtonActionPerformed(java.awt.event.ActionEvent evt) {
passwordField.setText("");
}
public boolean passwordControl() {
Password = passwordField.getPassword();
if (String.valueOf(Password).trim().isEmpty()) {
ErrorLbl.setText("Empty Password!");
ErrorLbl.setVisible(true);
return false;
}
return true;
}
public boolean adminEnterCondition(char[] pass) {
Connection con;
PreparedStatement preparedStatement;
ResultSet resultSet;
String query = "Select * From adminLogin";
String password = null;
try {
con = DriverManager.getConnection(...);
preparedStatement = con.prepareStatement(query);
resultSet = preparedStatement.executeQuery();
while (resultSet.next()) {
password = resultSet.getString("ID");  //Get column value by name column name
if (password.equalsIgnoreCase(String.valueOf(pass))) {
return true;
}
}
} catch (SQLException sqle) {
sqle.printStackTrace();
return false;
}
return false;
}
public boolean userEnterCondition(char[] pass) {
Connection con;
PreparedStatement preparedStatement;
ResultSet resultSet;
String query = "Select * from users";
String password = null;
try {
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection(...);
preparedStatement = con.prepareStatement(query);
resultSet = preparedStatement.executeQuery();
while (resultSet.next()) {
password = resultSet.getString("User_ID");
}
} catch (SQLException sqle) {
return false;
} catch (ClassNotFoundException cnfe) {
}
return false;
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == comboBox) {
if (comboBox.getSelectedIndex() == 1) {
usernameTF.setText("User");
usernameTF.setEditable(false);
passwordField.requestFocusInWindow();
ErrorLbl.setVisible(false);
} else if (comboBox.getSelectedIndex() == 2) {
passwordField.requestFocusInWindow();
}
}
}
}

OriginalL'auteur | 2014-07-14