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如何將文件中的值（來自textfields，textareas，radiobuttons等）和設置（舞臺位置，全屏或正常大小等）保存在文件中並從該文件中加載？我有一個解決方案，但這個解決方案似乎不是最好的解決方案，因爲它非常「代碼」（如果我使用了很多組件）。如何在JavaFX中的文件/文件中保存/加載值和設置？
我看看這個： Reading Properties file in Java
http://www.mkyong.com/java/java-properties-file-examples/
但這些例子非常簡單：
prop.setProperty("database", "localhost");
prop.setProperty("dbuser", "mkyong");
prop.setProperty("dbpassword", "password");
System.out.println(prop.getProperty("database"));
System.out.println(prop.getProperty("dbuser"));
System.out.println(prop.getProperty("dbpassword"));
但 'System.out.println (prop.getProperty("value"));' 是不是真的 '裝載' 對我來說。 沒有顯示如何在組件中使用它，例如textfiels，單選按鈕，複選框等。
在我的代碼片段中，我使用了不同的組件（textfield，datepicker，rb，cb等）。 這裏是我的代碼片段：
節能：
public void speichern (ActionEvent event) throws IOException
{
if (filename == null)
speichernUnter (event);
else
{
Properties prop = new Properties ();
FileOutputStream fos = null;
try
{
prop.setProperty ("Name", textField.getText ()); // Save a textfield
if (radioButton.isSelected ())
prop.setProperty ("RadioButtonState", "yes"); // Save rb state
if (checkBox.isSelected ())
{
prop.setProperty ("CheckBoxState", "yes"); // Save cb state
} else
prop.setProperty ("CheckBoxState", "no"); // or not
prop.setProperty ("Date", datePicker.getValue ().toString ()); //Save date
prop.setProperty ("Text", textArea.getText ()); // Save long text
fos = new FileOutputStream (filename);
// Save settings in file
prop.storeToXML (new FileOutputStream (filename), "Values and settings", "UTF-8");
} catch (IOException ex)
{
ex.printStackTrace ();
} finally
{
if (fos != null)
fos.close ();
} }
}
public void speichernUnter (ActionEvent event)
{
init ();
FileChooser fileChooser = new FileChooser ();
//Set extension filter
FileChooser.ExtensionFilter extFilter = new FileChooser.ExtensionFilter ("PROPERTIES Dateien (*.properties)", "*.properties");
fileChooser.getExtensionFilters ().add (extFilter);
//Show save file dialog
File file = fileChooser.showSaveDialog (stage);
if (file != null)
{
try
{
FileWriter fileWriter = new FileWriter (file);
fileWriter.close ();
filename = file.toString ();
speichern (event);
} catch (IOException ex)
{
Logger.getLogger (Kontroller.class.getName ()).log (Level.SEVERE, null, ex);
}
}
}
加載：
public void laden (ActionEvent event) throws IOException
{
if (filename == null)
ladenVon (event);
else
{
Properties prop = new Properties ();
FileInputStream fis = null;
try
{
fis = new FileInputStream (filename);
// Load Properties from saved XML file
prop.loadFromXML (fis);
textField.setText (prop.getProperty ("Name")); // load the text
if (prop.getProperty ("RadioButtonState").equals ("yes")) // load rb state
{
radioButton.setSelected ();
}
if (checkBox.isSelected ()) // Load cb state
checkBox.setSelected (false);
checkBox.setSelected (true);
}
datePicker.setValue (LocalDate.parse (prop.getProperty ("Date"))); // load date
textArea.setText (prop.getProperty ("Text")); // Load long text
} catch (IOException ex)
{
ex.printStackTrace ();
} finally
{
if (fis != null)
fis.close ();
}
}
}
public void ladenVon (ActionEvent event) throws IOException
{
init ();
FileChooser fileChooser = new FileChooser ();
FileChooser.ExtensionFilter extFilter = new FileChooser.ExtensionFilter ("PROPERTIES Dateien (*.properties)", "*.properties");
fileChooser.getExtensionFilters ().add (extFilter);
//Show load file dialog
File file = fileChooser.showOpenDialog (stage);
if (file != null)
{
try
{
FileReader fileReader = new FileReader (file);
fileReader.close ();
filename = file.toString ();
laden (event);
} catch (IOException ex)
{
Logger.getLogger (Kontroller.class.getName ()).log (Level.SEVERE, null, ex);
}
}
}
難道我真的要保存做這個 'prop.setProperty ("Name", textField.getText ());'，這 'textField.setText (prop.getProperty ("Name")); // load the text' 加載所有組件？
我的解決方案是否正確？這一切都按我想要的方式工作。 我的問題可能很愚蠢。 但是有更好更快的解決方案嗎？
在此先感謝