Android 生成Excel文件保存到本地

本文用来记录在安卓中生成Excel文件并保存到本地操作，在网上找了好久，终于找到一个可以用的，虽然代码已经很老的，但亲测可用！

项目地址：https://github.com/wanganan/AndroidExcel

可以下载下来修改直接用，该项目主要是依赖一个叫jxl.jar的包，导到项目中libs文件下加即可。

关键代码：

public class ExcelUtil {//内存地址public static String root = Environment.getExternalStorageDirectory().getPath();public static void writeExcel(Context context, List<Order> exportOrder,String fileName) throws Exception {if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)&&getAvailableStorage()>1000000) {Toast.makeText(context, "SD卡不可用", Toast.LENGTH_LONG).show();return;}String[] title = { "订单", "店名", "电话", "地址" };File file;
//		File dir = new File(context.getExternalFilesDir(null).getPath());File dir = new File(Environment.getExternalStorageDirectory().getAbsolutePath());file = new File(dir, fileName + ".xls");if (!dir.exists()) {dir.mkdirs();}// 创建Excel工作表WritableWorkbook wwb;OutputStream os = new FileOutputStream(file);wwb = Workbook.createWorkbook(os);// 添加第一个工作表并设置第一个Sheet的名字WritableSheet sheet = wwb.createSheet("订单", 0);Label label;for (int i = 0; i < title.length; i++) {// Label(x,y,z) 代表单元格的第x+1列，第y+1行, 内容z// 在Label对象的子对象中指明单元格的位置和内容label = new Label(i, 0, title[i], getHeader());// 将定义好的单元格添加到工作表中sheet.addCell(label);}for (int i = 0; i < exportOrder.size(); i++) {Order order = exportOrder.get(i);Label orderNum = new Label(0, i + 1, order.id);Label restaurant = new Label(1, i + 1, order.restName);Label nameLabel = new Label(2,i+1,order.restPhone);Label address = new Label(3, i + 1, order.receiverAddr);sheet.addCell(orderNum);sheet.addCell(restaurant);sheet.addCell(nameLabel);sheet.addCell(address);Toast.makeText(context, "写入成功", Toast.LENGTH_LONG).show();}// 写入数据wwb.write();// 关闭文件wwb.close();}public static WritableCellFormat getHeader() {WritableFont font = new WritableFont(WritableFont.TIMES, 10,WritableFont.BOLD);// 定义字体try {font.setColour(Colour.BLUE);// 蓝色字体} catch (WriteException e1) {e1.printStackTrace();}WritableCellFormat format = new WritableCellFormat(font);try {format.setAlignment(jxl.format.Alignment.CENTRE);// 左右居中format.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);// 上下居中// format.setBorder(Border.ALL, BorderLineStyle.THIN,// Colour.BLACK);// 黑色边框// format.setBackground(Colour.YELLOW);// 黄色背景} catch (WriteException e) {e.printStackTrace();}return format;}/** 获取SD可用容量 */private static long getAvailableStorage() {StatFs statFs = new StatFs(root);long blockSize = statFs.getBlockSize();long availableBlocks = statFs.getAvailableBlocks();long availableSize = blockSize * availableBlocks;// Formatter.formatFileSize(context, availableSize);return availableSize;}
}