(编辑:jimmy 日期: 2024/11/11 浏览:2)
StreamingHttpResponse(streaming_content):流式相应,内容的迭代器形式,以内容流的方式响应。
注:StreamingHttpResponse一般多现实在页面上,不提供下载。
以下为示例代码
def streamDownload(resquest): def file_iterator(filepath, chunk_size = 512): with open(filepath, 'rb') as f: while True: con = f.read(512) if con: yield con else: break filename = os.path.abspath(__file__) + 'test.txt' response = StreamingHttpResponse(file_iterator(filename) return response # 最后程序会将结果打印在显示器上
FileResponse(stream):以流形式打开后的文件
注:FileResponse是StreamingHttpResponse的子类
以下为示例代码:
def homeproc2(request): cwd = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) response = FileResponse(open(cwd + "/msgapp/templates/youfile", "rb")) response['Content-Type] = 'application/octet-stream' response['Content-Disposition'] = 'attachment;filename="filename"' return response
需要解释说明的是:
response['Content-Type] = 'application/octet-stream' response['COntent-Disposition'] = 'attachment;filename="filename"'
两者都是MIME协议里面的标准类型。