我已经创建了一个应用程序(使用Java),并使其受密码保护:当我在Eclipse中运行/编译我的代码时,它工作正常,但是当我创建一个jar文件并运行该jar时,它不工作:它向我显示当我创建了一个正常工作的第一罐子,但是当我刚刚加密码重置功能,它只是停止工作罐子不工作?
起初:
答案之前,请记住,代码工作正常后,初步框架,但没有任何作品编译器(即Eclipse),但在转换为jar时不工作。
转换过程:File>Export>Runnable Jar
(选项进行选择 - package required libraries into jar
)
输出在Eclipse工程 - 截屏图像here
一个无法运作的(从罐子执行) 截屏图像here
相关代码片段(考虑每个声明和初始化的东西)
public JFrame psFrame=new JFrame("Password Check");
private JPasswordField psField;
private static int tries=5;
static boolean condition=false;
private String Check,password;
//////////// CONSTRUCTOR ///////////
public MenusAndButtons(){
super("Explorer");
extraString=null;
try {passwordSetter();}catch (FileNotFoundException e){e.printStackTrace();}
paswardCheck();
}
public synchronized void paswardCheck(){
Check=null;
psFrame.setSize(400, 120);
psFrame.setLocation(480, 300);
psField=new JPasswordField("",30);
psField.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource()==psField){
Check=e.getActionCommand();
if(tries!=1){
if(Check!=null){
if(password.equals(Check)){
JOptionPane.showMessageDialog(null, "Welcome to Explorer ", "Welcome", JOptionPane.INFORMATION_MESSAGE);
condition=true;
psFrame.dispose();
Mnb();}
else{tries--;
JOptionPane.showMessageDialog(null,"You Entered a Wrong Password.\nYou are Left With " +tries+ " more Tries.\nPlease complete The Password Check with Correct Password\n", "Warrnning ",JOptionPane.WARNING_MESSAGE);
psField.setText(null); }
}else{JOptionPane.showMessageDialog(null,"You Entered Nothing in Password Field.\nPlease Enter a Password.","Null value Password Check",JOptionPane.ERROR_MESSAGE);
psField.setText(null);}
}else{JOptionPane.showMessageDialog(null,"You Entered a Wrong Password 5 Times.\nExplorer is Quiting Now.","Password Check Failed ",JOptionPane.ERROR_MESSAGE);
psFrame.dispose();
System.exit(0);}
}
}});
psFrame.setLayout(new FlowLayout());
psFrame.add(new JLabel("Enter Password"));
psFrame.add(psField);
psFrame.setResizable(false);
psFrame.setVisible(true);
}
public void passwordSetter() throws FileNotFoundException{
Scanner sc=new Scanner(new File("PasswordContainer.txt"));
while(sc.hasNext())
password=sc.nextLine();
sc.close();
}
public void passwordresetter() throws Exception{
String old=JOptionPane.showInputDialog(null,"Please Enter current Password","Current Password Check",JOptionPane.CANCEL_OPTION);
if(old.equals(password)){
String usererntry=JOptionPane.showInputDialog(null, "Please Enter new Password","Reset Password",JOptionPane.CANCEL_OPTION);
if(usererntry.length()>=6){
Formatter fp=new Formatter("PasswordContainer.txt");
fp.format("%s",usererntry);
fp.close();
JOptionPane.showMessageDialog(null,"You've successfully Change Your Password","Password Change Conformation",JOptionPane.PLAIN_MESSAGE);
}else{
JOptionPane.showMessageDialog(null,"You Password Must Contain at least 6 Characters\nPlease Retype the New Password ");
passwordresetter();}
}
else{JOptionPane.showMessageDialog(null,"You Entered Wrong Password\nPlease Retype the Current Password ");
passwordresetter();
}
}
无法看到您的代码或至少错误消息来回答。尝试从命令行使用java.exe -jar –
启动JAR没有显示错误它的行为与未在actionListener(实际上是actionPerformed方法)中写入一样。我会用代码编辑我的问题 –