python HTTP 图片上传-优快云博客

本文介绍了如何使用Python的httplib模块实现HTTP POST请求来上传图片。通过定义`post`函数和`formdata`函数，将图片文件和字段数据格式化为multipart/form-data，然后发送到指定的服务器地址。

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#-*-coding:utf-8-*-
import httplib
import mimetypes

#post请求
def post(host,fileds,files):
    content_type, body = formdata(fileds,files) #格式化信息头
    headers = {"content-type":content_type,"content-length":str(len(body))}
    req = httplib.HTTPConnection(host,80,True,3)
    req.request("POST","/",body,headers)
    response = req.getresponse()
    return response.read()

#格式化数据
def formdata(fields,files):
    LIMIT = '----------lImIt_of_THE_fIle_eW_$'     
    CRLF = '\r\n'
    L = []
    for key, value in fields.items():
        L.append('--' + LIMIT)
        L.append('Content-Disposition: form-data; name="%s"' % key)
        L.append('')
        L.append(value)
    for (key, filename, value) in files:
        L.append('--' + LIMIT)
        L.append('Content-Disposition: form-data; name="%s";filename="%s"' % (key, filename))
        L.append('Content-Type: %s' % mimetypes.guess_type(filename)[0])
        L.append('')
        L.append(value)
    L.append('--' + LIMIT + '--')
    L.append('')
    body = CRLF.join(L)
    content_type = 'multipart/form-data; boundary=%s' % LIMIT
    return content_type, body



if __name__== "__main__":
     #help(httplib.HTTPConnection)
     fields = {"name":"abc"}
     filename = '10050051_155917435130_2.jpg'
     files = [('file', filename, open(filename, 'rb').read())]
     a = post('192.168.10.31',fields,files)
     print a