Max.Bai
2017-08
1. 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('report.xls', 'rb')}>>> r = requests.post(url, files=files)>>> r.text{ ... "files": { "file": "<censored...binary...data>" }, ...}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)>>> r.text{ ... "files": { "file": "<censored...binary...data>" }, ...}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,sendnanother,row,to,sendn')}>>> r = requests.post(url, files=files)>>> r.text{ ... "files": { "file": "some,data,to,send\nanother,row,to,send\n" }, ...}
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。
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_filenamedef 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#post-multipart-encoded