如何迭代来自Tableview的数据将其导出到Microsoft Excel？
我需要帮助从表视图迭代数据将其导出到Excel中，每当我按下button，它只是从我的Excel表中显示表视图的第一行数据。
我希望你能得到这是我的代码
package application; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.net.URL; import java.util.ArrayList; import java.util.List; import java.util.ResourceBundle; import org.apache.poi.hssf.usermodel.HSSFCell; 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.ss.usermodel.RichTextString; import javafx.beans.property.SimpleStringProperty; import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.event.ActionEvent; import javafx.fxml.FXML; import javafx.fxml.Initializable; import javafx.scene.control.Button; import javafx.scene.control.ComboBox; import javafx.scene.control.DatePicker; import javafx.scene.control.TableColumn; import javafx.scene.control.TableView; import javafx.scene.control.TextArea; import javafx.scene.control.TextField; import javafx.scene.control.cell.PropertyValueFactory; public class SafeguardTrackingToolController implements Initializable { @FXML private TextField txtActivity; @FXML private TextArea txtComments; @FXML private ComboBox<String> cmbComponent; @FXML private TableColumn tblComponent, tblActivity, tableColumnForTor, tblContract, tblfirst, tblFinal , tblBank, tblDisclosure, tblNema, tblBudgetRe, tblBudgetPro, tblBegin, tblComments; @FXML private TableView<Items> tableViewForExcel; @FXML private DatePicker dateTor, dateContract, dateFirstDraft, dateFinalDraft, dateBank, dateDisclosure, dateNema, dateBudget, dateProvided, dateImplementation; @FXML private Button btnAdd,btnReset ,btnExcel ,btnDelete; private final ObservableList<Items> data=FXCollections.observableArrayList(new Items(null, null, null, null, null, null, null, null, null, null, null, null, null)); @Override public void initialize(URL location, ResourceBundle resources) { // TODO Auto-generated method stub tblComponent.setCellValueFactory(new PropertyValueFactory("Component")); tblActivity.setCellValueFactory(new PropertyValueFactory("Activity")); tableColumnForTor.setCellValueFactory(new PropertyValueFactory("Torr")); tblContract.setCellValueFactory(new PropertyValueFactory("Contract")); tblfirst.setCellValueFactory(new PropertyValueFactory("FirstDraft")); tblFinal.setCellValueFactory(new PropertyValueFactory("FinalDraft")); tblBank.setCellValueFactory(new PropertyValueFactory("Bank")); tblDisclosure.setCellValueFactory(new PropertyValueFactory("Disclosure")); tblNema.setCellValueFactory(new PropertyValueFactory("Nema")); tblBudgetRe.setCellValueFactory(new PropertyValueFactory("Budget")); tblBudgetPro.setCellValueFactory(new PropertyValueFactory("Provided")); tblBegin.setCellValueFactory(new PropertyValueFactory("Implementation")); tblComments.setCellValueFactory(new PropertyValueFactory("Comment")); cmbComponent.getItems().addAll("Hi","You","Well","Me" ); tableViewForExcel.getItems().setAll(this.data); } public static class Items{ //the setters and getters should be of the same name with the simple string property private final SimpleStringProperty Component; private final SimpleStringProperty Activity; private final SimpleStringProperty Torr; private final SimpleStringProperty Contract; private final SimpleStringProperty FirstDraft; private final SimpleStringProperty FinalDraft; private final SimpleStringProperty Bank; private final SimpleStringProperty Disclosure; private final SimpleStringProperty Nema; private final SimpleStringProperty Budget; private final SimpleStringProperty Provided; private final SimpleStringProperty Implementation; private final SimpleStringProperty Comment; private Items(String Comp, String Act, String Tor, String Co, String FDraft, String FinalDra, String Ban, String Dis, String Nem, String Bud,String Pro, String Im,String Comm) { this.Component = new SimpleStringProperty(Comp); this.Activity = new SimpleStringProperty(Act); this.Torr= new SimpleStringProperty(Tor); this.Contract= new SimpleStringProperty(Co); this.FirstDraft = new SimpleStringProperty(FDraft); this.FinalDraft = new SimpleStringProperty(FinalDra); this.Bank = new SimpleStringProperty(Ban); this.Disclosure = new SimpleStringProperty(Dis); this.Nema= new SimpleStringProperty(Nem); this.Budget = new SimpleStringProperty(Bud); this.Provided = new SimpleStringProperty(Pro); this.Implementation= new SimpleStringProperty(Im); this.Comment = new SimpleStringProperty(Comm); //this.Torr= new SimpleStringProperty(Tor); } public String getComponent() { return Component.get(); } public void setComponent(String Comp) { Component.set(Comp); } public String getActivity() { return Activity.get(); } public void setAcivity(String Act) { Activity.set(Act); } public String getTorr() { return Torr.get(); } public void setTorr(String Tor) { Torr.set(Tor); } public String getContract() { return Contract.get(); } public void setContract(String Co) { Contract.set(Co); } public String getFirstDraft() { return FirstDraft.get(); } public void setFirstDraft(String FDraft) { FirstDraft.set(FDraft); } public String getFinalDraft() { return FinalDraft.get(); } public void setFinalDraft(String FinalDra) { FinalDraft.set(FinalDra); } public String getBank() { return Bank.get(); } public void setBank(String Ban) { Bank.set(Ban); } public String getDisclosure() { return Disclosure.get(); } public void setDisclosure(String Dis) { Disclosure.set(Dis); } public String getNema() { return Nema.get(); } public void setNema(String Nem) { Nema.set(Nem); } public String getBudget() { return Budget.get(); } public void setBudget(String Bud) { Budget.set(Bud); } public String getProvided() { return Provided.get(); } public void setProvide(String Pro) { Provided.set(Pro); } public String getImplementation() { return Implementation.get(); } public void setImplementation(String Im) { Implementation.set(Im); } public String getComment() { return Comment.get(); } public void setComment(String Comm) { Comment.set(Comm); } } private void write() throws FileNotFoundException, IOException{ try { HSSFWorkbook workbook = new HSSFWorkbook(); HSSFSheet spreadsheet = workbook.createSheet("sample"); HSSFRow row =null; HSSFCell cell=null; row= spreadsheet.createRow(1); cell = row.createCell(1); cell.setCellValue("First name"); cell = row.createCell(2); cell.setCellValue("Last NAME"); cell = row.createCell(3); cell.setCellValue("Email"); cell = row.createCell(1); cell.setCellValue(tblComponent.getCellData(1).toString()); cell = row.createCell(2); cell.setCellValue(tblActivity.getCellData(1).toString()); cell = row.createCell(3); cell.setCellValue(tableColumnForTor.getCellData(1).toString()); cell = row.createCell(4); cell.setCellValue(tblContract.getCellData(1).toString()); cell = row.createCell(5); cell.setCellValue(tblfirst.getCellData(1).toString()); cell = row.createCell(6); cell.setCellValue(tblFinal.getCellData(1).toString()); cell = row.createCell(7); cell.setCellValue(tblBank.getCellData(1).toString()); cell = row.createCell(8); cell.setCellValue(tblDisclosure.getCellData(1).toString()); cell = row.createCell(9); cell.setCellValue(tblNema.getCellData(1).toString()); cell = row.createCell(10); cell.setCellValue(tblBudgetRe .getCellData(1).toString()); cell = row.createCell(11); cell.setCellValue(tblBudgetPro.getCellData(1).toString()); cell = row.createCell(12); cell.setCellValue(tblBegin.getCellData(1).toString()); cell = row.createCell(13); cell.setCellValue(tblComments.getCellData(1).toString()); //row = spreadsheet.createRow(2); /*cell = row.createCell(1); cell.setCellValue(tblComponent.getCellData(1).toString()); cell = row.createCell(2); cell.setCellValue(tblActivity.getCellData(1).toString()); cell = row.createCell(3); cell.setCellValue(tableColumnForTor.getCellData(1).toString()); cell = row.createCell(4); cell.setCellValue(tblContract.getCellData(1).toString()); cell = row.createCell(5); cell.setCellValue(tblfirst.getCellData(1).toString()); cell = row.createCell(6); cell.setCellValue(tblFinal.getCellData(1).toString()); cell = row.createCell(7); cell.setCellValue(tblBank.getCellData(1).toString()); cell = row.createCell(8); cell.setCellValue(tblDisclosure.getCellData(1).toString()); cell = row.createCell(9); cell.setCellValue(tblNema.getCellData(1).toString()); cell = row.createCell(10); cell.setCellValue(tblBudgetRe .getCellData(1).toString()); cell = row.createCell(11); cell.setCellValue(tblBudgetPro.getCellData(1).toString()); cell = row.createCell(12); cell.setCellValue(tblBegin.getCellData(1).toString()); cell = row.createCell(13); cell.setCellValue(tblComments.getCellData(1).toString());*/ /* Row row = null; Cell cell = null; for (int i=0;i<jtable.getRowCount();i++) { row = sheet.createRow(i); for (int j=0;j<jtable.getColumnCount();j++) { cell = row.createCell(j); cell.setCellValue((String) jtable.getValueAt(i, j)); } }*/ // row = spreadsheet.createRow(2); FileOutputStream out = new FileOutputStream(new File("example.xlsx")); workbook.write(out); out.close(); System.out.println("Data is wrtten Successfully"); } catch (Exception e) { e.printStackTrace(); } } @FXML private void onClickToAddOntheTable (ActionEvent event){ tableViewForExcel.getItems().add(new Items( cmbComponent.getValue().toString(), txtActivity.getText(), dateTor.getValue().toString(), dateContract.getValue().toString(), dateFirstDraft.getValue().toString(), dateFinalDraft.getValue().toString(), dateBank.getValue().toString(), dateDisclosure.getValue().toString(), dateNema.getValue().toString(), dateBudget.getValue().toString(), dateProvided.getValue().toString(), dateImplementation.getValue().toString(), txtComments.getText())); } @FXML private void onClickToSaveInExcel (ActionEvent event){ try { write(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } @FXML private void onClickToReset (ActionEvent event){ cmbComponent.setValue(""); txtActivity.clear(); dateTor.setValue(null);; dateContract.setValue(null); dateFirstDraft.setValue(null); dateFinalDraft.setValue(null); dateBank.setValue(null); dateDisclosure.setValue(null); dateNema.setValue(null); dateBudget.setValue(null); dateProvided.setValue(null); dateImplementation.setValue(null); txtComments.clear(); } @FXML private void onClickToResetTable (ActionEvent event){ tableViewForExcel.getItems().clear(); } } 特别是在代码的这一部分，我不知道如何迭代，这样我就可以得到table-view上的每个项目，并将其导出到多个Excel表格中
cell = row.createCell(1); cell.setCellValue(tblComponent.getCellData(1).toString()); cell = row.createCell(2); cell.setCellValue(tblActivity.getCellData(1).toString()); cell = row.createCell(3); cell.setCellValue(tableColumnForTor.getCellData(1).toString()); cell = row.createCell(4); cell.setCellValue(tblContract.getCellData(1).toString()); cell = row.createCell(5); cell.setCellValue(tblfirst.getCellData(1).toString()); cell = row.createCell(6); cell.setCellValue(tblFinal.getCellData(1).toString()); cell = row.createCell(7); cell.setCellValue(tblBank.getCellData(1).toString()); cell = row.createCell(8); cell.setCellValue(tblDisclosure.getCellData(1).toString()); cell = row.createCell(9); cell.setCellValue(tblNema.getCellData(1).toString()); cell = row.createCell(10); cell.setCellValue(tblBudgetRe .getCellData(1).toString()); cell = row.createCell(11); cell.setCellValue(tblBudgetPro.getCellData(1).toString()); cell = row.createCell(12); cell.setCellValue(tblBegin.getCellData(1).toString()); cell = row.createCell(13); cell.setCellValue(tblComments.getCellData(1).toString());
需要帮忙 ？
您需要为每一行创build新的HSSFRow()对象。 现在你只创build一行，只把第一行的数据传给它。 这就是为什么在你的Excel中，你只能看到你的第一排。 使用循环，为每个tableRow创build新的HSSFRows 。 使用以下内容
HSSFRow row =null; int i=1; for(Items item: tableViewForExcel.getItems()){ row= spreadsheet.createRow(i); row.createCell(1).setCellValue(item.getComponent); //.... add other column data as well i++; }
或使用以下内容
HSSFRow row =null; for(int i=0;i<tableViewForExcel.getItems().size();i++){ row= spreadsheet.createRow(i); for(int j=0; j< tableViewForExcel.getColumns().size();j++) { if(tableViewForExcel.getColumns().get(j).getCellData(i) != null) { row.createCell(j).setCellValue(tableViewForExcel.getColumns().get(j).getCellData(i).toString()); }else{ row.createCell(j).setCellValue(""); } } }