//临时工workbooks.zip文件
File zipFile = File.createTempFile("workbooks", ".zip");
ZipOutputStream zipOutputStream = new ZipOutputStream(new FileOutputStream(zipFile));for(..........){//临时workbook.xlsx文件,workbook写入xlsx中File tempFile = File.createTempFile(fileName, ".xlsx");try (BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(tempFile))) {workbook.write(bufferedOutputStream);}//写入zip文件中File file = tempFile;byte[] buffer = new byte[1024];try (FileInputStream fileInputStream = new FileInputStream(file)) {ZipEntry zipEntry = new ZipEntry(entryName);zipOutputStream.putNextEntry(zipEntry);int len;while ((len = fileInputStream.read(buffer)) > 0) {zipOutputStream.write(buffer, 0, len);}zipOutputStream.closeEntry();}
}
zipOutputStream.close();
//写出到客户端下载
HttpHeaders headers = new HttpHeaders();headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=workbooks.zip");InputStreamResource inputStreamResource = new InputStreamResource(new FileInputStream(zipFile));return ResponseEntity.ok().headers(headers).contentType(MediaType.APPLICATION_OCTET_STREAM).body(inputStreamResource);

客户端接收响应下载文件

axios.post(url, //自己填data,//自己填.... {responseType: 'blob'}).then((res) => {this.visible_mergeMax_modal = false;const blob = new Blob([res], { type: 'application/zip' });const url = window.URL.createObjectURL(blob);const link = document.createElement('a');link.href = url;link.setAttribute('download', 'yourfilename'+this.getCurrentDate()+'.zip');document.body.appendChild(link);link.click();window.URL.revokeObjectURL(url);document.body.removeChild(link);}).catch((error) => {console.error('Error generating and downloading ZIP:', error);
})