图片样式

vue前端代码：

 <el-table
            height="470"
            :data="tableData"
            style="width: 100%;"
            :default-sort="{prop: 'created', order: 'descending'}"
          >
           
              <template slot-scope="scope">

                <el-link targer="_blank" :href="`${download_url}?id=${scope.row.id}`">
                </el-link>
                <el-button
                  type="primary"
                  size="mini"
                  style="color: white"
                  @click="downloadfile(scope.$index, scope.row)"
                >
                  下载
                </el-button>
                <br>
                <br>
              </template>
            </el-table-column>
          </el-table>

 函数编写：

data () {
      return {
        
        download_url: '',
      
      }
    },
    mounted () {
        this.download_url = this.$settings.base_url + '/user/downloadfile/'
    },

} 


downloadfile (index, row) {
        var arr=row.filename.split('.')// /medai/companyfile/新员工手册.docx
        var file_type=arr[arr.length-1]//获取文件的格式
        this.$axios({
          method: 'get', // 如果是get方法，则写“GET”
          url: this.download_url + `?id=${row.id}`,
          responseType: 'blob'
        })
          .then(res => {

            let blob = new Blob([res.data], {
              type: 'application/msword' //这里需要根据不同的文件格式写不同的参数
            })

            let eLink = document.createElement('a')
            eLink.download = `${row.name}.${file_type}` //给文件名和指定格式,浏览器下载时看到的
            eLink.style.display = 'none'
            eLink.href = URL.createObjectURL(blob)
            document.body.appendChild(eLink)
            eLink.click()
            URL.revokeObjectURL(eLink.href)
            document.body.removeChild(eLink)
          })
          .catch(err => {
          })

      },

后端django代码：

from django.conf import settings
from django.http import FileResponse
class DownloadFileView(GenericAPIView):
    def get(self,request):
        file_id = request.query_params.get('id')
        file_obj = models.CompanyFile.objects.filter(id=file_id).first()
        if file_obj:
            #拿到文件在数据库中存储的位置
            media_file=str(file_obj.filename)
            # 拼接文件路径
            filepath = os.path.join(settings.MEDIA_ROOT, media_file)
            #拿到文件的名字（该名字包含了文件的格式）
            filename =media_file.split(r'/')[-1]
            file = open(filepath, 'rb')
            response = FileResponse(file)  # 生成文件对象application/msword  application/octet-stream
            response['Content-Type'] = 'application/octet-stream'
            #name.split('.')[0] + '.docx'，
            name = filename
            response['Content-Disposition'] = 'attachment;filename ="%s"' % (
                name.encode('utf-8').decode('ISO-8859-1'))
            return response