python使用requests实现发送带文件请求功能
qq_492448446 人气:01. requests发送文件功能
Requests 使得上传多部分编码文件变得很简单
url = 'http://httpbin.org/post' files = {'file': open('D:/APPs.png', 'rb')} r = requests.post(url, files=files) print(r.text)
你可以显式地设置文件名,文件类型和请求头:
url = 'http://httpbin.org/post' files = {'file': ('report.xls', open('report.xls', 'rb'), 'application/vnd.ms-excel', {'Expires': '0'})} r = requests.post(url, files=files) print(r.text)
如果你想,你也可以发送作为文件来接收的字符串:
url = 'http://httpbin.org/post' files = {'file': ('report.csv', 'some,data,to,send\nanother,row,to,send\n')} r = requests.post(url, files=files) print(r.text)
如果你发送一个非常大的文件作为 multipart/form-data 请求,你可能希望将请求做成数据流。默认下 requests 不支持, 但有个第三方包 requests-toolbelt 是支持的。你可以阅读 toolbelt 文档 来了解使用方法。
2. requests发送多个文件请求
只要把文件设到一个元组的列表中,其中元组结构为 (form_field_name, file_info)
按照如下格式发送数据
data = {'ts_id': tsid} files = [('images',('1.png', open('/home/1.png', 'rb'),'image/png')),('images',('2.png', open('/home/2.png', 'rb'),'image/png'))] r = requests.post(url, data=data, files=files) print r.text
3. Django 接收文件
附带介绍Django里面如何接收图片文件数据:
读取文件:
from werkzeug.utils import secure_filename def upload_file(request): if request.method == 'POST': uploaded_files = request.FILES.getlist("images") try: for file in uploaded_files: filename = secure_filename(file.name) handle_uploaded_file(os.path.join(ft, filename), file) except Exception as e: result_json = {"msg": str(e)} result = { 'json': result_json } return JsonResponse(result, safe=False)
保存文件:
def handle_uploaded_file(filename, f): try: destination = open(filename, 'wb+') for chunk in f.chunks(): destination.write(chunk) destination.close() except Exception as e: raise Exception('save %s failed: %s' % (filename, str(e)))
requests 官网:http://docs.python-requests.org/zh_CN/latest/user/quickstart.html
加载全部内容