我已经完成了一些我正在处理的游戏，但是当用户想要保存并加载他之前的任何游戏时，当我需要保存/写入时，它在netbeans中运行时工作正常，但是当我和＃39; m从netbeans生成的JAR运行它只有当应用程序永远不会关闭时才会起作用，我的意思是，当它关闭时它会丢失所有数据，我猜测是因为它不是写作或者加载文件我从控制台运行时遇到此错误。在该txt文件中只有一个ArrayList，每个用户的信息也与Record文件一样，它只存储游戏的前10名玩家。
java.io.FileNotFoundException: saveFiles\Users\Usuarios.txt (The system cannot find the path specified)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)
at SaveNLoad.SaveUsers.saveUsers(SaveUsers.java:26)
at CrossyMain.MainMenu$ButtonListening.actionPerformed(MainMenu.java:309)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
这是因为某些路径问题吗？在netbeans中，似乎该路径是从那里加载它时的绝对路径，但是当从JAR文件加载它时我不认为它是相同的，任何建议都将受到高度赞赏！
以下是管理用户文件写入/读取操作的方法
public static void saveUsers (ArrayList<User> usersToSave){
try { //Used to Save Users
File path = new File("saveFiles/Users/Usuarios.txt");
System.out.println(path.getAbsolutePath());
FileOutputStream writeUsers = new FileOutputStream(path);
ObjectOutputStream userStream = new ObjectOutputStream(writeUsers);
userStream.writeObject(usersToSave);
userStream.close();
} catch (IOException ex) {
Logger.getLogger(SaveUsers.class.getName()).log(Level.SEVERE, null, ex);
}
}
public static void loadUsers (){
try {
File path = new File("saveFiles/Users/Usuarios.txt");
System.out.println(path.getAbsolutePath());
FileInputStream readUsers = new FileInputStream(path);
ObjectInputStream userStream = new ObjectInputStream(readUsers);
ArrayList<User> loaded = (ArrayList<User>) userStream.readObject();
User.setUsers(loaded);
userStream.close();
} catch (IOException | ClassNotFoundException ex) {
System.out.println("File Not Created");
}
}
记录文件的读/写操作（注意sort（）只是一个用比较器命令ArrayList的函数）
private static final String RECORDSFILE = "saveFiles/Records/Records.txt";
public static void loadScoreFile() {
try{
inputStream = new ObjectInputStream(new FileInputStream(RECORDSFILE));
scores = (ArrayList<Score>) inputStream.readObject();
sort();
inputStream.close();
} catch (IOException | ClassNotFoundException e) {
}
}
public void updateScoreFile() {
try {
outputStream = new ObjectOutputStream(new FileOutputStream(RECORDSFILE));
sort();
outputStream.writeObject(scores);
outputStream.close();
} catch (IOException e) {
}
}
同样，它在netbeans中工作正常，但它不能在JAR文件中工作，如果你们需要更多来自我已经发布的lemme知道的代码！但这些是处理2个文件记录和用户的输入/输出操作的函数！任何建议都将受到高度赞赏！
答案 0 :(得分：1)
它适用于Netbeans，因为它没有使用JAR文件，而是使用文件系统。
您无法在正在运行的JAR文件中写入文件。重新考虑你的要求。