Java导出多个excel并且打包成zip压缩文件
最近的项目有一个导出汇总数据的要求，考虑到用户软件的差异，所以要分别导出xls以及xlsx并且打包提供下载，所以有了这个博客，代码如下。
实现思路：
- 获取需要导出的数据；
- 生成对应的xls、xlsx文件流；
- 生成对应的zip文件，提供下载。
代码主要使用到了POI以及Hutool解压模块。
/**
* 利用传入的数据，生成对应的xls文件
*
* @param data 需要导出的数据
* @param sheetName sheet的名字
* @param titleValue excel主题（例如第一行显示：“2018-10月销售汇总”）
* @param headArr 标题
*
* @return 生成的03excel工作簿
*/
public static HSSFWorkbook exportDataTo03(List data, String sheetName, String titleValue, String[] headArr)
throws IOException, IllegalArgumentException, IllegalAccessException {
// 新建excel
HSSFWorkbook wb = new HSSFWorkbook();
// 新建sheet
HSSFSheet sheet = wb.createSheet(sheetName);
// 1.1创建合并单元格对象
CellRangeAddress callRangeAddress = new CellRangeAddress(0, 0, 0, headArr.length - 1);
sheet.addMergedRegion(callRangeAddress);
// 新建第一行表头
HSSFRow titleRow = sheet.createRow(0);
titleRow.setHeightInPoints(50);
HSSFFont titleFont = wb.createFont();
titleFont.setBold(true);
titleFont.setFontName("微软雅黑");
titleFont.setFontHeightInPoints((short) 35);
// 样式
HSSFCellStyle titleStyle = wb.createCellStyle();
// 剧中
titleStyle.setAlignment(HorizontalAlignment.CENTER_SELECTION);
titleStyle.setFont(titleFont);
HSSFCell titleCell = titleRow.createCell(0);
titleCell.setCellStyle(titleStyle);
titleCell.setCellValue(titleValue + "xxx");
HSSFCellStyle hearStyle = wb.createCellStyle();
hearStyle.setAlignment(HorizontalAlignment.CENTER_SELECTION);
HSSFFont headFont = wb.createFont();
headFont.setBold(true);
headFont.setFontName("微软雅黑");
headFont.setFontHeightInPoints((short) 50);
HSSFRow headRow = sheet.createRow(1);
headRow.setHeightInPoints(30);
for (int i = 0; i < headArr.length; i++) {
HSSFCell headCell = headRow.createCell(i);
headCell.setCellStyle(hearStyle);
headCell.setCellValue(headArr[i]);
// TODO 这里要根据对应的列名设置对应的宽度，更美观一点。我这里偷懒直接所有的设置一样的
sheet.setColumnWidth(i, 256 * 30);
}
HSSFCellStyle valueStyle = wb.createCellStyle();
valueStyle.setAlignment(HorizontalAlignment.CENTER_SELECTION);
HSSFFont valueFont = wb.createFont();
valueFont.setFontName("微软雅黑");
valueFont.setFontHeightInPoints((short) 15);
valueStyle.setFont(valueFont);
// 根据反射获取私有字段，与列名匹配，对应的话就插入对应数据
for (int valueIndex = 0; valueIndex < data.size(); valueIndex++) {
HSSFRow valueRow = sheet.createRow(valueIndex + 2);
valueRow.setHeightInPoints(30);
Class c = data.get(valueIndex).getClass();
Field[] fields = c.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
NoExport amazonFiled = fields[i].getAnnotation(NoExport.class);
if (amazonFiled != null && amazonFiled.value() == false) {
continue;
}
fields[i].setAccessible(true);
String fidldName = fields[i].getName();
for (int j = 0; j < headArr.length; j++) {
String headName = headArr[j];
if (fidldName.trim().equalsIgnoreCase(headName.trim())) {
HSSFCell valueCell = valueRow.createCell(j);
valueCell.setCellStyle(valueStyle);
valueCell.setCellValue(fields[i].get(data.get(valueIndex)) + "");
break;
}
}
}
}
return wb;
}
/**
* 利用传入的数据，生成对应的xlsx文件
*
* @param data 需要导出的数据
* @param sheetName sheet的名字
* @param titleValue excel主题（例如第一行显示：“2018-10月销售汇总”）
* @param headArr 标题
*
* @return 生成的07excel工作簿
*/
public static XSSFWorkbook exportDataTo07(List data, String sheetName, String titleValue, String[] headArr)
throws IOException, IllegalArgumentException, IllegalAccessException {
// 新建excel
XSSFWorkbook wb = new XSSFWorkbook();
// 新建sheet
XSSFSheet sheet = wb.createSheet(sheetName);
// 1.1创建合并单元格对象
CellRangeAddress callRangeAddress = new CellRangeAddress(0, 0, 0, headArr.length - 1);
sheet.addMergedRegion(callRangeAddress);
// 新建第一行表头
XSSFRow titleRow = sheet.createRow(0);
titleRow.setHeightInPoints(50);
XSSFFont titleFont = wb.createFont();
titleFont.setBold(true);
titleFont.setFontName("微软雅黑");
titleFont.setFontHeightInPoints((short) 35);
// 样式
XSSFCellStyle titleStyle = wb.createCellStyle();
// 剧中
titleStyle.setAlignment(HorizontalAlignment.CENTER_SELECTION);
titleStyle.setFont(titleFont);
XSSFCell titleCell = titleRow.createCell(0);
titleCell.setCellStyle(titleStyle);
titleCell.setCellValue(titleValue + "xxx");
XSSFCellStyle hearStyle = wb.createCellStyle();
hearStyle.setAlignment(HorizontalAlignment.CENTER_SELECTION);
XSSFFont headFont = wb.createFont();
headFont.setBold(true);
headFont.setFontName("微软雅黑");
headFont.setFontHeightInPoints((short) 50);
XSSFRow headRow = sheet.createRow(1);
headRow.setHeightInPoints(30);
for (int i = 0; i < headArr.length; i++) {
XSSFCell headCell = headRow.createCell(i);
headCell.setCellStyle(hearStyle);
headCell.setCellValue(headArr[i]);
sheet.setColumnWidth(i, 256 * 30);
}
XSSFCellStyle valueStyle = wb.createCellStyle();
valueStyle.setAlignment(HorizontalAlignment.CENTER_SELECTION);
XSSFFont valueFont = wb.createFont();
valueFont.setFontName("微软雅黑");
valueFont.setFontHeightInPoints((short) 15);
valueStyle.setFont(valueFont);
for (int valueIndex = 0; valueIndex < data.size(); valueIndex++) {
XSSFRow valueRow = sheet.createRow(valueIndex + 2);
valueRow.setHeightInPoints(30);
Class c = data.get(valueIndex).getClass();
Field[] fields = c.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
NoExport amazonFiled = fields[i].getAnnotation(NoExport.class);
if (amazonFiled != null && amazonFiled.value() == false) {
continue;
}
fields[i].setAccessible(true);
String fidldName = fields[i].getName();
for (int j = 0; j < headArr.length; j++) {
String headName = headArr[j];
if (fidldName.trim().equalsIgnoreCase(headName.trim())) {
XSSFCell valueCell = valueRow.createCell(j);
valueCell.setCellStyle(valueStyle);
valueCell.setCellValue(fields[i].get(data.get(valueIndex)) + "");
break;
}
}
}
}
return wb;
} /**
* 把传入的工作簿文件转成输入流
*
* @param workbooks 工作簿文件
* @return 文件流list
*/
public static List workBook2Stream(Workbook... workbooks) throws IOException {
List list = new LinkedList();
for (Workbook obj : workbooks) {
ByteArrayOutputStream os = new ByteArrayOutputStream();
obj.write(os);
list.add(os);
obj.close();
}
return list;
}
/**
* 压缩文件
*
* @param workBook 生成的03工作簿
* @param xworkWork 生成的07工作簿
* @param fileNames 被压缩的文件名称
*
* @return File 生成的压缩包文件
*
* @throws IOException
*
*/
public static File zipFile(HSSFWorkbook workBook, XSSFWorkbook xworkWork, String[] fileNames) throws Exception {
// 写入输入流
List workList = workBook2Stream(workBook, xworkWork);
InputStream[] is = new InputStream[workList.size()];
int step = 0;
for (ByteArrayOutputStream bs : workList) {
byte[] content = bs.toByteArray();
ByteArrayInputStream bt = new ByteArrayInputStream(content);
is[step] = bt;
step++;
}
// 获取项目路径
String rootPath = BusinessUtils.class.getClassLoader().getResource("").getPath();
// 创建临时文件tempFile
File zipFile = new File(rootPath + "/tempFile.zip");
if (!zipFile.exists()) {
zipFile.createNewFile();
}
zipFile = ZipUtil.zip(zipFile, fileNames, is);
// 关闭流
for (ByteArrayOutputStream steam : workList) {
IoUtil.close(steam);
}
for (InputStream steam : is) {
IoUtil.close(steam);
}
return zipFile;
}
下载：
File zipFile = BusinessUtils.zipFile(workBook, xworkWork, fileNames);
String downloadFileName = URLEncoder.encode("XX商户XX公司XXXX报税单销售汇总信息.zip", "UTF-8");
response.setHeader("content-type", "application/octet-stream");
response.setContentType("application/x-execl");
response.setHeader("Content-Disposition",
"attachment;filename=" + new String((downloadFileName).getBytes(), "UTF-8"));
// 读取文件
InputStream in = new FileInputStream(zipFile);
ServletOutputStream outputStream = response.getOutputStream();
// 写文件
int b;
while ((b = in.read()) != -1) {
outputStream.write(b);
}
in.close();
outputStream.close();
//删除临时文件
zipFile.delete();没了。
效果如下：
