python requests post请求_python - requests 发送带文件请求

上官琦
2023-12-01

python - requests 发送带文件请求

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": ""

},

...

}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": ""

},

...

}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)

>>> 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。

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#post-multipart-encoded

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