python flask restfull 接收图像

Question

您好，我无法从我的 python 客户端接收我的烧瓶服务器上的文件我正在将屏幕截图保存在内存中，但无法在服务器端接收它。我很感激我能得到的任何帮助我迷失了我的 requests.post 必须是什么。

服务器代码：

@app.route('/upload', methods=['POST'])
def upload():
    file = request.files['file']
    filename = secure_filename(file.filename)
    file.save(os.path.join(app.config['upload_folder'], filename))

客户代码：

content_type = 'image/jpeg'
headers = {'content-type': content_type}

from PIL import ImageGrab
from StringIO import StringIO
screen = ImageGrab.grab()
img = stringIO()
screen.save(img, 'JPEG')
img.seek(0)
fd = open('screen.jpg', 'wb')
fd.write(img.getvalue())
fd.close()
fin = open('screen.jpg', 'wb')
files = {'file': fin}
requests.post('http://localhost/upload', files=files)

Answer 1

要上传的文件格式应为('filename', fileobj, 'content_type')，因此更改

files={'file': ('test.jpg', content_type)}

到

files={'file': ('test.jpg', img, content_type)}

文档参考：

files -- (optional) Dictionary of 'name': file-like-objects (or {'name': file-tuple}) for multipart encoding upload. file-tuple can be a 2-tuple ('filename', fileobj), 3-tuple ('filename', fileobj, 'content_type') or a 4-tuple ('filename', fileobj, 'content_type', custom_headers), where 'content-type' is a string defining the content type of the given file and custom_headers a dict-like object containing additional headers to add for the file.

python flask restfull 接收图像

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