python 上传文件到服务器（模拟网页前端上传）

1. 上传脚本的python代码

def upload():
	# buld post body data
	boundary = '----------%s' % hex(int(time.time() * 1000))
    # 换成自己的url
	http_url = 'https://XXXXX/upload_api'
	data = []
	data.append('--%s' % boundary)
	data.append('Content-Disposition: form-data; name="%s"; filename="%s"' % ('file', 'data.txt'))
	data.append('Content-Type: %s\r\n' % 'text/html')
	fr = open(r'/tmp/data.txt', 'rb')
	data.append(fr.read())
	fr.close()
	data.append('--%s--\r\n' % boundary)
	http_body = '\r\n'.join(data)
	try:
		req = urllib2.Request(http_url, data=http_body)
		req.add_header('Content-Type', 'multipart/form-data; boundary=%s' % boundary)
		req.add_header('User-Agent', 'Mozilla/5.0')
        # 换成自己的 Authorization，如果没有的话，可以不写
		req.add_header('Authorization', 'XXXXXX')
		res = urllib2.urlopen(req, context=ssl.SSLContext(ssl.PROTOCOL_TLSv1), timeout=5)
		# print ('res---------',res.read().decode('utf8'))
	except Exception as e:
		print ('Error: %s' % e)

upload()

以上py执行的时候，已经模拟网页前端发送了上传请求。

2. 服务端接收上传文件并保存

def action_upload_target():
    if request.method != "POST":
        return
    if not request.content_type.startswith("multipart/form-data"):
        return
    target = ''
    if 'file' in request.files:
        file_metas = request.files['file']
        for meta in file_metas:
            target += meta.decode()
    return target

def upload_api():
    #校验Authorization
    status, info = check_auth()
    if not status:
        return info
    #权限通过后，逐行解析上传的文件
    target = action_upload_target()
    #把文件内容写入到本地保存
    file_object = open('/tmp/test_upload.txt', 'w')
    file_object.write(target)
    file_object.close()
    return "success"

参考链接：python 上传文件到服务器 - 小鱼娟娟 - 博客园