3 回答

TA貢獻(xiàn)1830條經(jīng)驗(yàn) 獲得超3個(gè)贊
從FileDialog:
此類的實(shí)例允許用戶瀏覽文件系統(tǒng)并 選擇或輸入文件名。
該對話框不會自行創(chuàng)建文件,您必須檢索所選文件名,然后創(chuàng)建文件。
例如
String name = fileSave.getFileName();
File file = new File(name);
file.createNewFile();

TA貢獻(xiàn)1827條經(jīng)驗(yàn) 獲得超8個(gè)贊
FileDialog僅用于選擇文件保存的位置。它并沒有真正創(chuàng)建或?qū)懭胛募?你必須這樣做。
所以
String savePath = fileSave.open();
// TODO your code to write the file to savePath

TA貢獻(xiàn)1794條經(jīng)驗(yàn) 獲得超8個(gè)贊
import java.io.File;
import java.io.IOException;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Shell;
public class Snippet {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(1, false));
Composite composite = new Composite(shell, SWT.NONE);
composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
composite.setLayout(new GridLayout(1, false));
Button btnExport = new Button(composite, SWT.NONE);
btnExport.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
FileDialog fileSave = new FileDialog(shell, SWT.SAVE);
fileSave.setFilterNames(new String[] { "CSV" });
fileSave.setFilterExtensions(new String[] { "*.csv" });
fileSave.setFilterPath("C:\\"); // Windows path
fileSave.setFileName("your_file_name.csv");
String open = fileSave.open();
File file = new File(open);
try {
file.createNewFile();
System.out.println("File Saved as: " + file.getCanonicalPath());
} catch (IOException e1) {
e1.printStackTrace();
}
}
});
btnExport.setBounds(246, 56, 75, 40);
btnExport.setText("Export");
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
}
}
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