vue+springboot通过post请求实现文件下载

前端vue实现

let param = {
    'fileName': 'fileName'
}
this.download(this.BaseURL, '/downloadFile', param, (response) => {}, 5 * 1000 * 1000)


// 封装
download (baseURL, url, data, callback, timeout) {
    return axios({
      baseURL: baseURL,
      method: 'post',
      url,
      data: data,
      responseType: 'blob',//设置responseType为blob
      timeout: timeout
    }).then(
      (response) => {
        if (response.headers['content-type'] === 'APPLICATION/OCTET-STREAM') { 
          let filename = 'result.zip'
          //response.data为下载的文件数据
          let url = window.URL.createObjectURL(new Blob([response.data]))
          let link = document.createElement('a')
          link.style.display = 'none'
          link.href = url
          link.setAttribute('download', filename)
          document.body.appendChild(link)
          link.click()
        }
      }
    )
}

后端下载方法

@RequestMapping(value = "downloadFile", method = RequestMethod.POST)
    public void downloadFile(@RequestBody DownloadFileDTO downloadFileDTO, HttpServletResponse response) throws IOException {
 
        response.setContentType("APPLICATION/OCTET-STREAM");
        ZipOutputStream out = new ZipOutputStream(response.getOutputStream());
        // 获取文件存储路径（绝对路径）
        try {
            String fileName = downloadFileDTO.getFileName();
            String[] filePaths = fileName.split(",");
            for (String path : filePaths) {
                File file = new File(path);
                ZipUtils.doCompress(file.getCanonicalPath(), out);        //打包压缩
                response.flushBuffer();
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            out.close();
        }
    }