如何用savedilogue javafx保存文件

我已经创build了excel文件，并且希望该文件在JavaFx文件select器中显示为“文件名”框。 所以我可以使用SaveDialogueBox将它保存到任何我想要的位置。

代码：

WriteExcelFile test = new WriteExcelFile(); File exlFile = new File("c:/temp/"+tabName+".xls"); WorkbookSettings wbSettings = new WorkbookSettings(); wbSettings.setLocale(new Locale("en", "EN")); WritableWorkbook workbook = Workbook.createWorkbook(exlFile, wbSettings); workbook.createSheet("Report", 0); WritableSheet excelSheet = workbook.getSheet(0); //createLabel(excelSheet); Label label; // Write a few headers label = new Label(0, 0,"ID"); excelSheet.addCell(label); label = new Label(1, 0,"BIC"); excelSheet.addCell(label); label = new Label(0, 1,"Hi 0"); excelSheet.addCell(label); label = new Label(1, 1,"Hi 1"); excelSheet.addCell(label); workbook.write(); workbook.close(); Stage stage = (Stage) delBtn.getScene().getWindow(); FileChooser fileChooser = new FileChooser(); fileChooser.setTitle("Open Resource File"); fileChooser.getExtensionFilters().addAll( new ExtensionFilter("Microsoft Workbook", "*.xls")); File selectedFile = fileChooser.showSaveDialog(stage); if (selectedFile != null) { //What to write here } 

Answer 1

是的，我以不同的方式得到了答案。

 import java.io.File; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFDataFormat; import javafx.application.Application; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.ButtonBuilder; import javafx.scene.layout.VBox; import javafx.scene.layout.VBoxBuilder; import javafx.scene.text.Text; import javafx.scene.text.TextBuilder; import javafx.stage.FileChooser; import javafx.stage.Stage; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.util.Date; import org.apache.poi.hssf.usermodel.HSSFCell; import org.apache.poi.hssf.usermodel.HSSFCellStyle; import org.apache.poi.hssf.usermodel.HSSFDataFormat; import org.apache.poi.hssf.usermodel.HSSFRow; import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.hssf.util.HSSFColor; /** * * @web http://java-buddy.blogspot.com/ */ public class JavaFXText extends Application { /** * @param args the command line arguments */ public static void main(String[] args) { launch(args); } @Override public void start(final Stage primaryStage) { primaryStage.setTitle("java-buddy.blogspot.com"); Group root = new Group(); try { FileOutputStream fileOut = new FileOutputStream("poi-test.xls"); HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet worksheet = workbook.createSheet("POI Worksheet"); // index from 0,0... cell A1 is cell(0,0) HSSFRow row1 = worksheet.createRow((short) 0); HSSFCell cellA1 = row1.createCell((short) 0); cellA1.setCellValue("Hello"); HSSFCellStyle cellStyle = workbook.createCellStyle(); cellStyle.setFillForegroundColor(HSSFColor.GOLD.index); cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellA1.setCellStyle(cellStyle); HSSFCell cellB1 = row1.createCell((short) 1); cellB1.setCellValue("Goodbye"); cellStyle = workbook.createCellStyle(); cellStyle.setFillForegroundColor(HSSFColor.LIGHT_CORNFLOWER_BLUE.index); cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellB1.setCellStyle(cellStyle); HSSFCell cellC1 = row1.createCell((short) 2); cellC1.setCellValue(true); HSSFCell cellD1 = row1.createCell((short) 3); cellD1.setCellValue(new Date()); cellStyle = workbook.createCellStyle(); cellStyle.setDataFormat(HSSFDataFormat .getBuiltinFormat("m/d/yy h:mm")); cellD1.setCellStyle(cellStyle); workbook.write(fileOut); fileOut.flush(); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } // Text textSong = TextBuilder.create() // .text // .build(); Button buttonSave = ButtonBuilder.create() .text("Save") .build(); buttonSave.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { FileChooser fileChooser = new FileChooser(); //Set extension filter FileChooser.ExtensionFilter extFilter = new FileChooser.ExtensionFilter("excel files (*.xls)", "*.xls"); fileChooser.getExtensionFilters().add(extFilter); //Show save file dialog File file = fileChooser.showSaveDialog(primaryStage); if(file != null){ SaveFile(file); System.out.println("hi"); } } }); VBox vBox = VBoxBuilder.create() .children(buttonSave) .build(); root.getChildren().add(vBox); primaryStage.setScene(new Scene(root, 500, 400)); primaryStage.show(); } @SuppressWarnings("unused") private void SaveFile(File file){ try { FileOutputStream fileOut = new FileOutputStream(file); HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet worksheet = workbook.createSheet("POI Worksheet"); // index from 0,0... cell A1 is cell(0,0) HSSFRow row1 = worksheet.createRow((short) 0); HSSFCell cellA1 = row1.createCell((short) 0); cellA1.setCellValue("Hello"); HSSFCellStyle cellStyle = workbook.createCellStyle(); cellStyle.setFillForegroundColor(HSSFColor.GOLD.index); cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellA1.setCellStyle(cellStyle); HSSFCell cellB1 = row1.createCell((short) 1); cellB1.setCellValue("Goodbye"); cellStyle = workbook.createCellStyle(); cellStyle.setFillForegroundColor(HSSFColor.LIGHT_CORNFLOWER_BLUE.index); cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND); cellB1.setCellStyle(cellStyle); HSSFCell cellC1 = row1.createCell((short) 2); cellC1.setCellValue(true); HSSFCell cellD1 = row1.createCell((short) 3); cellD1.setCellValue(new Date()); cellStyle = workbook.createCellStyle(); cellStyle.setDataFormat(HSSFDataFormat .getBuiltinFormat("m/d/yy h:mm")); cellD1.setCellStyle(cellStyle); workbook.write(fileOut); fileOut.flush(); fileOut.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }