SWT表格Table導出Excel檔案

在做Java界面程式時，碰到這樣的問題，界面上的Table如何到成Excel檔案，這樣更具有實用性，是以自己上網搜了下，自己根據當時的需求改寫了一下，隻需要提供一個Table，和檔案儲存路徑就能将界面上的表格轉化成.xls檔案

 測試代碼如下：

1.操作Excel需要的jar包：    jxl.jar

https://download.csdn.net/download/qq_62719995/86245450

import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;


import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;

import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;

public class testCreateExcel {

	protected Shell shell;
	private Table table;

	/**
	 * Launch the application.
	 * @param args
	 */
	public static void main(String[] args) {
		try {
			testCreateExcel window = new testCreateExcel();
			window.open();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * Open the window.
	 */
	public void open() {
		Display display = Display.getDefault();
		createContents();
		shell.open();
		shell.layout();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch()) {
				display.sleep();
			}
		}
	}

	/**
	 * Create contents of the window.
	 */
	protected void createContents() {
		shell = new Shell();
		shell.setSize(450, 300);
		shell.setText("SWT Application");
		
		table = new Table(shell, SWT.BORDER | SWT.FULL_SELECTION);
		table.setBounds(48, 39, 341, 153);
		table.setHeaderVisible(true);
		table.setLinesVisible(true);
		
		TableColumn tblclmnNewColumn = new TableColumn(table, SWT.NONE);
		tblclmnNewColumn.setWidth(100);
		tblclmnNewColumn.setText("\u59D3\u540D");
		
		TableColumn tblclmnNewColumn_1 = new TableColumn(table, SWT.NONE);
		tblclmnNewColumn_1.setWidth(100);
		tblclmnNewColumn_1.setText("\u5E74\u9F84");
		
		TableColumn tblclmnNewColumn_2 = new TableColumn(table, SWT.NONE);
		tblclmnNewColumn_2.setWidth(100);
		tblclmnNewColumn_2.setText("\u7C4D\u8D2F");
		
		TableItem tableItem = new TableItem(table, SWT.NONE);
		tableItem.setText(new String[] {"\u5F20\u4E09", "19", "\u6E56\u5357"});
		
		TableItem tableItem_1 = new TableItem(table, SWT.NONE);
		tableItem_1.setText(new String[] {"\u674E\u56DB", "20", "\u56DB\u5DDD"});
		
		TableItem tableItem_2 = new TableItem(table, SWT.NONE);
		tableItem_2.setText(new String[] {"\u738B\u4E94", "18", "\u5E7F\u4E1C"});
		
		Button btnNewButton = new Button(shell, SWT.NONE);
		btnNewButton.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				try {
					FileDialog dialog = new FileDialog(shell, SWT.SAVE);//檔案儲存對話框
					dialog.setFilterExtensions(new String[] { ".xls" });//檔案類型過濾器
					String path = dialog.open();//得到路徑
					createExcel(table, path);   //建立Excel表
				} catch (Exception ex) {
					ex.printStackTrace();
				}
			}
		});
		btnNewButton.setBounds(48, 213, 98, 30);
		btnNewButton.setText("\u5BFC\u51FAExcel");

		
		
		
		
		
		
	}
	
	
	//建立Excel表    傳table   和 儲存路徑
	private  static void createExcel(Table table,String path) throws WriteException,IOException{
		if(table==null || path==null ||path.equals("")) {
			return;
		}
		FileOutputStream fos = new FileOutputStream(path);
		int cols = table.getColumnCount();
		int rows = table.getItemCount();

		// 建立工作薄
		WritableWorkbook workbook = Workbook.createWorkbook(fos);
		// 建立新的一頁
		WritableSheet sheet = workbook.createSheet("First Sheet", 0);

		
		// 建立要顯示的内容,建立一個單元格，第一個參數為列坐标，第二個參數為行坐标，第三個參數為内容
		// 寫入列名
		for (int i = 0; i < cols; i++) {
			Label Lcol = new Label(i, 0, table.getColumn(i).getText());
			sheet.addCell(Lcol);
		}

		// 寫入内容
		TableItem[] tItem = table.getItems();
		for (int i = 1; i <= rows; i++) {
			for (int j = 0; j < cols; j++) {
				Label item = new Label(j, i, tItem[i - 1].getText(j));
				sheet.addCell(item);
			}
		}

		// 把建立的内容寫入到輸出流中，并關閉輸出流
		workbook.write();
		workbook.close();
		fos.close();
    }
	


	
}
           

 類似的，這個createExcel(Table table,String path)方法改寫用去資料庫資料導出，隻是不在需要SWT的table了。