java从servlet response下载JavaScript格式的Excel
我在其他地方看到过许多类似的问题,但都未能解决这个问题
我想使用ApachePOI(3.17)在我的应用程序中下载一个Excel文档。我在Spring服务中生成文档,然后将其作为响应传递回要下载的JavaScript客户端。但是,文件已损坏,因为“文件格式或文件扩展名无效”
春季服务:
final Workbook workbook = new XSSFWorkbook();
final Sheet sheet = workbook.createSheet("Test");
Row row = sheet.getRow(1);
if (row == null)
{
row = sheet.createRow(1);
}
Cell cell = row.getCell(0);
if (cell == null)
{
cell = row.createCell(0);
}
cell.setCellValue("Testing123");
final ByteArrayOutputStream outByteStream = new ByteArrayOutputStream();
workbook.write(outByteStream);
outArray = outByteStream.toByteArray();
outByteStream.flush();
outByteStream.close();
workbook.close();
Servlet:
final ByteArrayResource resource = new ByteArrayResource(
this.downloadService.downloadExcel(request, response, baseRequest));
final HttpHeaders headers = new HttpHeaders();
headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + resource.getFilename());
return ResponseEntity.ok()
.headers(headers)
.contentLength(resource.contentLength())
.contentType(MediaType.parseMediaType("application/vnd.ms-excel"))
.body(resource);
JavaScript客户端:
var contentTypeHeader = 'application/vnd.ms-excel';
var blob = new Blob([result],{type: contentTypeHeader});
var link = document.createElement('a');
link.href = window.URL.createObjectURL(blob);
link.download = filename;
link.click();
我哪里做错了
# 1 楼答案
好吧,事实上我知道了。我找到了解决问题的方法:
Getting corrupted file while exporting .xls file using java/javascript and apache POI
我需要在servlet中将文件编码为字符串,然后将其传递给客户机并解码为Blob