JTable 导出 Excel 利用 jxl.jar

/*
* 注明出处！！
*QQ: 409323911
*/
package com.db.report;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.logging.Level;
import java.util.logging.Logger;

import javax.swing.JOptionPane;
import javax.swing.JTable;

import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.Colour;
import jxl.format.UnderlineStyle;
import jxl.format.VerticalAlignment;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

/**
*
* @author Administrator
*/
public class ExportTableToExcel  {

public ExportTableToExcel(File file, String heading,String inscribe,JTable table,String[] columnName) {
try {
WritableWorkbook workbook = null;// 创建工作薄

if (file.exists()) {// 文件已经存在
workbook = Workbook.createWorkbook(file, Workbook.getWorkbook(file));
} else {// 文件还不存在
workbook = Workbook.createWorkbook(file);
}

WritableSheet sheet = workbook.createSheet(
heading, workbook.getNumberOfSheets());// 创建工作表

//取得TABLE的行数
int rowNum = table.getRowCount();
//取得TABLE的列数
int columnNum = table.getColumnCount();

int mergeNumberOfColumns =columnNum;// 获取表格列数

fillHeading(sheet, heading, mergeNumberOfColumns);// 填写主标题
fillInscribe(sheet, inscribe, mergeNumberOfColumns,rowNum);// 填写落款

//             fillSubheading(sheet, subheading, mergeNumberOfColumns);// 填写副标题
//             fillColumnName(sheet);// 填写列名
//             fillCell(sheet);// 填写数据

for (int k = 0; k < columnNum; k++) {
jxl.write.Label labelN = new jxl.write.Label(k, 2,columnName[k]);
try {
sheet.addCell(labelN);
}
catch (RowsExceededException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (WriteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
for (int i = 0; i < columnNum; i++) {//列
for (int j = 1; j <= rowNum; j++) {//
String str = null;
str =table.getValueAt(j-1, i).toString();

jxl.write.Label labelN = new jxl.write.Label(i, j, str);

try {
sheet.addCell(labelN);
}
catch (RowsExceededException e) {
e.printStackTrace();
}
catch (WriteException e) {
e.printStackTrace();
}
}
}
//写入工作表
workbook.write();
try {
workbook.close();
int dialog = JOptionPane.showConfirmDialog(null,
"飞行小时统计表导出成功！是否打开？",
"温馨提示", JOptionPane.YES_NO_OPTION);
if (dialog == JOptionPane.YES_OPTION) {

//					Runtime run = Runtime.getRuntime();
//					// I make the assumption that the client has Excel and
//					// the file type .XLS is associated with Excel
//					// This is a simple check to find out the 操作系统！
//					String lcOSName = System.getProperty("os.name").toLowerCase();
//					boolean MAC_OS_X = lcOSName.startsWith("mac os x");
//					if (MAC_OS_X) {
//						run.exec("open " + file);
//					} else {
//						run.exec("cmd /c start \"\" \"" + file + "\"");
//					}

Runtime.getRuntime().exec("cmd /c start \"\" \"" + file + "\"");
}
}
catch (WriteException e) {
e.printStackTrace();
}
}
catch (FileNotFoundException e) {
JOptionPane.showMessageDialog(null, "导入数据前请关闭工作表");
}
catch (Exception e) {
Logger.getLogger(ExportTableToExcel.class.getName()).log(Level.SEVERE, null, e);
JOptionPane.showMessageDialog(null, "没有进行筛选");

}

}

// 填写主标题
private void fillHeading(WritableSheet sheet, String heading, int mergeNumberOfColumns)
throws WriteException {
WritableFont font = new WritableFont(WritableFont.ARIAL, 14, WritableFont.BOLD,
false, UnderlineStyle.NO_UNDERLINE, Colour.BLACK);// 定义字体

WritableCellFormat format = new WritableCellFormat(font);// 创建格式化对象

format.setAlignment(Alignment.CENTRE);// 水平居中显示

format.setVerticalAlignment(VerticalAlignment.CENTRE);// 垂直居中显示

sheet.mergeCells(0, 0, mergeNumberOfColumns - 1, 0);// 合并单元格

sheet.setRowView(0, 600);// 设置行高

sheet.addCell(new Label(0, 0, heading, format));// 填写工作表

}

//填写落款
private void fillInscribe(WritableSheet sheet, String inscribe, int mergeNumberOfColumns, int rowNum)
throws WriteException {
WritableFont font = new WritableFont(WritableFont.ARIAL, 11, WritableFont.NO_BOLD,
false, UnderlineStyle.NO_UNDERLINE, Colour.BLACK);// 定义字体

WritableCellFormat format = new WritableCellFormat(font);// 定义格式化对象

format.setAlignment(Alignment.LEFT);// 水平居中显示

sheet.mergeCells(0, rowNum+2, mergeNumberOfColumns - 1, rowNum+2);// 合并单元格

sheet.addCell(new Label(0,rowNum+2, inscribe, format));// 填写工作表

}
//=====================================填写副标题=====================================
//    private void fillSubheading(WritableSheet sheet, String subheading, int mergeNumberOfColumns)
//            throws WriteException {
//        WritableFont font = new WritableFont(WritableFont.ARIAL, 14, WritableFont.NO_BOLD,
//                false, UnderlineStyle.NO_UNDERLINE, Colour.RED);// 定义字体
//
//        WritableCellFormat format = new WritableCellFormat(font);// 定义格式化对象
//
//        format.setAlignment(Alignment.CENTRE);// 水平居中显示
//
//        format.setVerticalAlignment(VerticalAlignment.CENTRE);// 垂直居中显示
//
//      //  sheet.mergeCells(0, 1, mergeNumberOfColumns - 1, 1);// 合并单元格
//
//        sheet.setRowView(1, 400);// 设置行高
//
//        sheet.addCell(new Label(0, 1, subheading, format));// 填写工作表
//
//    }

//=====================================填写列名=====================================
//    private void fillColumnName(WritableSheet sheet) throws WriteException {
//        WritableFont font = new WritableFont(WritableFont.ARIAL, 12, WritableFont.BOLD,
//                false, UnderlineStyle.NO_UNDERLINE, Colour.RED);// 定义字体
//
//        WritableCellFormat format = new WritableCellFormat(font);// 定义格式化对象
//
//        format.setAlignment(Alignment.CENTRE);// 水平居中显示
//
//        sheet.setColumnView(0, 15);// 设置列宽
//
//        //填写工作表
//        for (int column = 0; column < columnName.size(); column++) {
//            sheet.addCell(new Label(column, 3, columnName.get(column), format));
//        }
//    }
//
//    //填写数据
//    private void fillCell(WritableSheet sheet) throws WriteException {
//        WritableFont font = new WritableFont(WritableFont.ARIAL, 12, WritableFont.NO_BOLD,
//                false, UnderlineStyle.NO_UNDERLINE, Colour.BLACK);// 定义字体
//
//        WritableCellFormat format = new WritableCellFormat(font);// 定义格式化对象
//
//        format.setAlignment(Alignment.CENTRE);// 水平居中显示
//
//        //填写工作表
//        for (int row = 0; row < tableData.size(); row++) {
//            Vector rowData = tableData.get(row);
//            for (int column = 0; column < rowData.size(); column++) {
//                sheet.addCell(new Label(column, row + 4, rowData.get(column).toString(), format));
//            }
//        }
//    }
}

button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {

File selectedFile = getSelectedFile(".xls");
if (selectedFile != null) {
String[] columnName = { "编号", " 学号", "姓名", "班级", "性别",
"生日", "身份证", "年龄", "学历", "专业", "联系方式", "就业城市",
"学生状态", "备注" };
String today = new SimpleDateFormat("yyyy年MM月dd日")
.format(new Date());
String inscribe = "填表人:                                                                        填表日期:"
+ today; // 页脚

new ExportTableToExcel(selectedFile, fileName, inscribe,
table, columnName);
}

}
});

private File getSelectedFile(final String type) {
String name = fileName;

JFileChooser pathChooser = new JFileChooser();
pathChooser.setFileFilter(new FileFilter() {

@Override
public boolean accept(File f) {
if (f.isDirectory()) {
return true;
} else {
if (f.getName().toLowerCase().endsWith(type)) {
return true;
} else {
return false;
}
}
}

@Override
public String getDescription() {
return "文件格式（" + type + "）";
}
});
pathChooser.setSelectedFile(new File(name + type));
int showSaveDialog = pathChooser.showSaveDialog(this);
if (showSaveDialog == JFileChooser.APPROVE_OPTION) {
return pathChooser.getSelectedFile();
} else {
return null;
}
}