我不知道为什么，但是当我将项目导出到一个可执行的jar文件中时，有些事情就好像你会从eclipse运行程序一样。一个框架不会打开，其中只包含文本。我有另一个内部框架，它是一个分割窗格，包含右侧的问题和左侧面板上的信息。但是在可执行jar文件中，它并没有显示左侧的信息。我不知道为什么会发生这种情况，我在导出项目时做了很多选择（制作一个jar文件），但似乎没什么用。任何帮助将不胜感激。
以下是我没有打开的框架的代码：
public class About implements ActionListener, InternalFrameListener{
private int openFrameCount;
private JDesktopPane desk;
private JTextArea Tarea;
private JScrollPane scroll;
private BufferedReader in ;
private MyInternalFrame frame;
public About(JDesktopPane desktop) {
// TODO Auto-generated constructor stub
desk = desktop;
}
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
if(frame == null || frame.getParent() == null && !frame.isIconifiable()){
frame = new MyInternalFrame("SAD Imaging");
try {
in = new BufferedReader(new FileReader("SADInfo.txt"));
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
String line;
String file = "";
try {
while((line = in.readLine()) != null)
{
System.out.println(line);
file += line;
file +="\n";
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
in.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
Tarea = new JTextArea();
//System.out.println(file);
Tarea.setText(file);
Font f = new Font("TimesNewRoman", Font.ROMAN_BASELINE, 16);
Tarea.setFont(f);
Tarea.setBackground(Color.white);
Tarea.setAlignmentX(SwingConstants.CENTER);
Tarea.setEditable(false);
JPanel panel = new JPanel();
panel.add(Tarea);
panel.setBackground(Color.white);
//scroll = new JScrollPane(Tarea);
scroll = new JScrollPane(panel,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
//open the frame in the middle of the desktop.
Dimension desktopSize = desk.getSize();
Dimension jInternalFrameSize = frame.getSize();
frame.setLocation((desktopSize.width - jInternalFrameSize.width)/2, (desktopSize.height- jInternalFrameSize.height)/2);
frame.add(scroll);
frame.setVisible(true);
desk.add(frame);
try {
frame.setSelected(true);
} catch (java.beans.PropertyVetoException e) {
}
frame.addInternalFrameListener(this);
}
else {
try {
//frame.setIcon(true);
frame.setMaximizable(true);
frame.setIconifiable(false);
frame.setSelected(true);
frame.moveToFront();
frame.toFront();
} catch (PropertyVetoException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private class MyInternalFrame extends JInternalFrame {
static final int xPosition = 30, yPosition = 30;
public MyInternalFrame(String title) {
super(title, true,true, true, true);
setSize(600,500);
// Set the window's location.
setLocation(xPosition * openFrameCount, yPosition * openFrameCount);
}
}
此文件仅包含文本信息。
拆分窗格的问题相同。这是它的代码。
public class FrequentQuestions implements ActionListener, InternalFrameListener{
private int openFrameCount;
private JDesktopPane desk;
private JTextArea Tarea;
private JScrollPane scroll;
private BufferedReader in ;
JPanel panelQuestions = new JPanel();
JPanel panelAnswers = new JPanel();
JTextArea text = new JTextArea();
JTextPane tPane = new JTextPane();
String file ="";
//private FrequentQuestions quest;
JSplitPane pane ;
MyInternalFrame frame;
public FrequentQuestions(JDesktopPane desktop) {
// TODO Auto-generated constructor stub
desk = desktop;
}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if(frame == null || frame.getParent() == null){
frame = new MyInternalFrame("Frequently Asked Questions");
String [] options = {"How to open/save images", "What formats can SAD Imaging open", "How to show information about an image",
"Compute FFT/Inverse", "Graphs"};
JList list = new JList(options);
//list.setBorder(BorderFactory.createLineBorder(Color.black));
//panelQuestions.add(list);
list.addListSelectionListener(new ListSelectionListener(){
@Override
public void valueChanged(ListSelectionEvent e) {
// TODO Auto-generated method stub
if(e.getValueIsAdjusting() == false)
return;
JList list = (JList) e.getSource();
if (list.isSelectionEmpty()) {
System.out.println("list selection is empty!");
}
int index = ((JList)e.getSource()).getSelectedIndex();
if(index == 0){
//panelAnswers.removeAll();
file = "";
try {
in = new BufferedReader(new FileReader("openSave.txt"));
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
String line;
try {
while((line = in.readLine()) != null)
{
System.out.println(line);
file += line;
file +="\n";
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
in.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
tPane.setText(file);
System.out.println("I am outputting!");
}
else if(index == 1){
//panelAnswers.removeAll();
file = "";
try {
in = new BufferedReader(new FileReader("format.txt"));
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
String line;
//String file = "";
try {
while((line = in.readLine()) != null)
{
System.out.println(line);
file += line;
file +="\n";
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
in.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
tPane.setText(file);
System.out.println("2nd item selected");
}
else{
//panelAnswers.removeAll();
file = "";
try {
in = new BufferedReader(new FileReader("showInfo.txt"));
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
String line;
try {
while((line = in.readLine()) != null)
{
System.out.println(line);
file += line;
file +="\n";
}
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
in.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
tPane.setText(file);
System.out.println("3rd item selected");
}
}
});
JScrollPane scroll1 = new JScrollPane(list,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
scroll = new JScrollPane(tPane,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
pane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, scroll1, scroll);
pane.setAutoscrolls(true);
pane.setOpaque(true);
panelQuestions.setMinimumSize(new Dimension(259,50));
panelQuestions.setBackground(new Color(0,0,0,0));
panelAnswers.setMinimumSize(new Dimension(600,30));
pane.setOneTouchExpandable(true);
pane.setDividerLocation(290);
scroll1.setBackground(new Color(0,0,0,0));
//Border border = new Border();
//scroll1.setBorder(BorderFactory.createLineBorder(Color.black));
//open the frame in the middle of the desktop.
Dimension desktopSize = desk.getSize();
Dimension jInternalFrameSize = frame.getSize();
frame.setLocation((desktopSize.width - jInternalFrameSize.width)/2, (desktopSize.height- jInternalFrameSize.height)/2);
frame.add(pane);
frame.setVisible(true);
desk.add(frame);
try {
frame.setSelected(true);
} catch (java.beans.PropertyVetoException e1) {
}
}
else{
try {
//frame.setIcon(true);
//frame.setMaximizable(true);
frame.setSelected(true);
frame.moveToFront();
//frame.toFront();
} catch (PropertyVetoException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}
private class MyInternalFrame extends JInternalFrame {
static final int xPosition = 30, yPosition = 30;
public MyInternalFrame(String title) {
super(title, true,true, true, true);
setSize(800,500);
// Set the window's location.
setLocation(xPosition * openFrameCount, yPosition * openFrameCount);
}
}
答案 0 :(得分：1)
您正在尝试从文件系统加载文件。相反，您需要通过类加载器加载它。
Getting Resources from a jar: classloader vs class resourceasstream
编辑：我假设可执行jar包含此文本文件。是这样的吗？