我正在尝试创建项目的可执行文件。我创建了我的应用程序的.jar文件。
双击时，此jar文件无法打开。 当我使用
从命令提示符运行jar文件时，它成功运行java -jar app.jar
可能是什么原因？ 这是我的源代码：
package app;
import java.awt.Color;
public class MainApplication extends JFrame {
/**
*
*/
private static final long serialVersionUID = 1L;
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
MainApplication frame = new MainApplication();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public MainApplication() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(130, 20, 1100, 700);
contentPane = new JPanel();
contentPane.setBackground(Color.WHITE);
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
ImageIcon F1Icon = new ImageIcon("C:\\Users\\Bruce\\workspace\\OSTNashik\\src\\app\\F1.jpg");
JLabel labelImage = new JLabel("");
labelImage.setBounds(381, 11, 230, 161);
contentPane.add(labelImage);
Image image = F1Icon.getImage(); // transform it
Image newimg = image.getScaledInstance(230, 190, java.awt.Image.SCALE_SMOOTH); // scale it the smooth way
F1Icon = new ImageIcon(newimg);
labelImage.setIcon(F1Icon);
ImageIcon osTechIcon = new ImageIcon("C:\\Users\\Bruce\\workspace\\OSTNashik\\src\\app\\a.gif");
JLabel osTechLabel = new JLabel("");
osTechLabel.setBounds(22, 11, 230, 111);
contentPane.add(osTechLabel);
Image image1 = osTechIcon.getImage(); // transform it
Image newimg1 = image1.getScaledInstance(230, 130, java.awt.Image.SCALE_SMOOTH); // scale it the smooth way
osTechIcon = new ImageIcon(newimg1);
osTechLabel.setIcon(osTechIcon);
ImageIcon ninedotIcon = new ImageIcon("C:\\Users\\Bruce\\workspace\\OSTNashik\\src\\app\\ninedots.jpg");
JLabel nineDotLabel = new JLabel("");
nineDotLabel.setBounds(826, 11, 248, 111);
contentPane.add(nineDotLabel);
Image image2 = ninedotIcon.getImage(); // transform it
Image newimg2 = image2.getScaledInstance(230, 110, java.awt.Image.SCALE_SMOOTH); // scale it the smooth way
ninedotIcon = new ImageIcon(newimg2);
nineDotLabel.setIcon(ninedotIcon);
JPanel panel = new JPanel();
panel.setBackground(Color.CYAN);
panel.setBounds(25, 200, 512, 439);
contentPane.add(panel);
panel.setLayout(null);
JButton btnLogANew = new JButton("Log New Call ");
btnLogANew.setBounds(10, 84, 220, 23);
panel.add(btnLogANew);
JButton btnViewOpenCalls = new JButton("View Open Calls");
btnViewOpenCalls.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
OpenCallSummary frame = new OpenCallSummary();
frame.setVisible(true);
}
});
btnViewOpenCalls.setBounds(10, 132, 220, 23);
panel.add(btnViewOpenCalls);
JButton btnEnggDesk = new JButton("View Engineer Desk Calls");
btnEnggDesk.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
EnggDeskCallSummary frame = new EnggDeskCallSummary();
frame.setVisible(true);
}
});
btnEnggDesk.setBounds(10, 178, 220, 23);
panel.add(btnEnggDesk);
JLabel lblServiceCenterRelated = new JLabel("Service Center Related Tasks");
lblServiceCenterRelated.setFont(new Font("Segoe UI Semibold", Font.PLAIN, 16));
lblServiceCenterRelated.setBounds(138, 25, 212, 23);
panel.add(lblServiceCenterRelated);
JButton closedCalls = new JButton("View Closed Calls");
closedCalls.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
ClosedCallSummary cc=new ClosedCallSummary();
cc.setVisible(true);
}
});
closedCalls.setBounds(10, 271, 220, 23);
panel.add(closedCalls);
JButton btnViewEdmaCalls = new JButton("View EDMA Calls");
btnViewEdmaCalls.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
EDMACallSummary ed=new EDMACallSummary();
ed.setVisible(true);
}
});
btnViewEdmaCalls.setBounds(10, 225, 220, 23);
panel.add(btnViewEdmaCalls);
JPanel panel_2 = new JPanel();
panel_2.setBackground(SystemColor.inactiveCaptionText);
panel_2.setBounds(251, 89, 251, 99);
panel.add(panel_2);
panel_2.setLayout(null);
JButton btnTravelPending = new JButton("View Pending Travel Approvals");
btnTravelPending.setBounds(10, 21, 220, 23);
panel_2.add(btnTravelPending);
JButton btnViewApprovedTravel = new JButton("View Approved Travel Approvals");
btnViewApprovedTravel.setBounds(10, 55, 220, 23);
panel_2.add(btnViewApprovedTravel);
JPanel panel_3 = new JPanel();
panel_3.setBackground(SystemColor.inactiveCaptionText);
panel_3.setLayout(null);
panel_3.setBounds(251, 199, 251, 99);
panel.add(panel_3);
JButton btnViewMaterialRequired_1 = new JButton("View Material Required Calls");
btnViewMaterialRequired_1.setBounds(10, 21, 220, 23);
panel_3.add(btnViewMaterialRequired_1);
JButton btnViewMaterialApproved = new JButton("View Material Approved Calls");
btnViewMaterialApproved.setBounds(10, 55, 220, 23);
panel_3.add(btnViewMaterialApproved);
btnViewMaterialApproved.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
MaterialApprovedSummary ma=new MaterialApprovedSummary();
ma.setVisible(true);
}
});
btnViewMaterialRequired_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
MaterialRequiredSummary mr=new MaterialRequiredSummary();
mr.setVisible(true);
}
});
btnViewApprovedTravel.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ApprovedTravelSummary ats=new ApprovedTravelSummary();
ats.setVisible(true);
}
});
btnTravelPending.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
PendingTravelApprovalSummary ps=new PendingTravelApprovalSummary();
ps.setVisible(true);
}
});
JPanel panel2 = new JPanel();
panel2.setBackground(Color.CYAN);
panel2.setBounds(547, 200, 527, 439);
contentPane.add(panel2);
panel2.setLayout(null);
JLabel lblOtherTasks = new JLabel("Reports");
lblOtherTasks.setBounds(238, 22, 209, 22);
lblOtherTasks.setFont(new Font("Segoe UI Semibold", Font.PLAIN, 16));
panel2.add(lblOtherTasks);
JButton enggwisebtn = new JButton("Engineer Wise Reports");
enggwisebtn.setBounds(48, 127, 181, 23);
panel2.add(enggwisebtn);
JButton opencallbtn = new JButton("Open Calls Reports");
opencallbtn.setBounds(48, 172, 181, 23);
panel2.add(opencallbtn);
JButton closedcallbtn = new JButton("Closed Calls Reports");
closedcallbtn.setBounds(48, 220, 181, 23);
panel2.add(closedcallbtn);
JButton btnOtherCallsReports = new JButton("Other Calls Reports");
btnOtherCallsReports.setBounds(48, 268, 181, 23);
panel2.add(btnOtherCallsReports);
JButton btnSearchByRma = new JButton("Search By RMA Number");
btnSearchByRma.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
RMASearch rma=new RMASearch();
rma.setVisible(true);
}
});
btnSearchByRma.setBounds(48, 83, 181, 23);
panel2.add(btnSearchByRma);
btnLogANew.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
Main m=new Main();
m.setVisible(true);
}
});
}
}
答案 0 :(得分：-2)
如果您使用Eclipse或Netbeans作为IDE，这些是两种可能的解决方案：
- 从菜单栏的“文件”菜单中，选择“导出”。
- 展开Java节点并选择Runnable JAR文件。单击“下一步”。
- 在打开Runnable JAR导出向导的Runnable JAR文件规范页面中，选择一个＆＃39; Java Application＆＃39;启动配置 用于创建可运行的JAR。
- 在“导出目标”字段中，键入或单击“浏览”以选择JAR文件的位置。
- 选择合适的库处理策略。
- 或者，您也可以创建ANT脚本以快速重新生成以前创建的可运行JAR文件。
[...]
- 在NetBeans IDE中，选择“文件”＆gt;新项目。
- 在“新建项目”向导的“常规类别”页面中，选择“包含现有来源的Java项目”。单击“下一步”。
- 在向导的“名称和位置”页面上，填写项目的名称和文件夹。保留Set as Main Project复选框 选择。点击下一步。例如，为Project Name键入AnotherGrep。 对于“项目文件夹”字段，您可以接受默认值。该 项目文件夹不必与源位于同一位置 您要导入项目的文件。
- 在向导的“现有源”页面上，指定将在项目中的源。单击“添加文件夹”按钮 位于“源包文件夹”字段的右侧。然后导航到 您刚刚解压缩的DeploymentTutorial文件夹 系统，展开文件夹，选择src文件夹，然后单击“打开”。该 src文件夹已添加到“源包文件夹”字段中。
- 单击“完成”。