webrequest 对象到龙卷风中的 csv

Question

我通过上传 csv 生成了以下 webrequest 对象正文：

------WebKitFormBoundaryZfGb9EY1D9p7BTV9
Content-Disposition: form-data; name="file"; filename="vb_bpm.csv"
Content-Type: text/csv

10/05/2015,00:08:17,8,3960,2,52503,19824
10/05/2015,00:19:35,8,3960,2,52542,19824
10/05/2015,02:21:21,8,3960,2,55366,19824
10/05/2015,02:32:11,8,3960,2,55942,19824
10/05/2015,02:43:13,8,3960,2,56139,19824
10/05/2015,02:54:09,8,3960,2,56750,19824
10/05/2015,03:05:08,8,3960,2,57007,19824
10/05/2015,03:16:10,8,3960,2,57040,19824
10/05/2015,03:27:00,8,3960,2,57633,19824
10/05/2015,03:37:54,8,3960,2,58306,19824
10/05/2015,03:48:47,8,3960,2,58984,19824

------WebKitFormBoundaryZfGb9EY1D9p7BTV9--

我想将其保存到一个新的 csv 文件中。以下给出以上输出：

def csv_handle(self, request, response) :
        print request.body()

如有任何帮助，我们将不胜感激。

Answer 1

我建议对所有上传的数据进行严格验证，以防止代码注入和数据质量下降。

我的解决方案是运行通过正则表达式上传的行：

import re

lines = str(request.body).split()
p = "\d{1,2}\/\d{1,2}\/\d{2,4},\d{1,2}\:\d{1,2}\:\d{1,2},\d+,\d+,\d+,\d+,\d+"
filtered_body = "\n".join(filter(lambda l: re.match(p, l), lines))

print "Original:\n%s\n" % request.body
print "Filtered:\n%s\n" % filtered_body

您的数据的结果输出：

Original:
------WebKitFormBoundaryZfGb9EY1D9p7BTV9
Content-Disposition: form-data; name="file"; filename="vb_bpm.csv"
Content-Type: text/csv

10/05/2015,00:08:17,8,3960,2,52503,19824
10/05/2015,00:19:35,8,3960,2,52542,19824
10/05/2015,02:21:21,8,3960,2,55366,19824
10/05/2015,02:32:11,8,3960,2,55942,19824
10/05/2015,02:43:13,8,3960,2,56139,19824
10/05/2015,02:54:09,8,3960,2,56750,19824
10/05/2015,03:05:08,8,3960,2,57007,19824
10/05/2015,03:16:10,8,3960,2,57040,19824
10/05/2015,03:27:00,8,3960,2,57633,19824
10/05/2015,03:37:54,8,3960,2,58306,19824
10/05/2015,03:48:47,8,3960,2,58984,19824

------WebKitFormBoundaryZfGb9EY1D9p7BTV9--

Filtered:
10/05/2015,00:08:17,8,3960,2,52503,19824
10/05/2015,00:19:35,8,3960,2,52542,19824
10/05/2015,02:21:21,8,3960,2,55366,19824
10/05/2015,02:32:11,8,3960,2,55942,19824
10/05/2015,02:43:13,8,3960,2,56139,19824
10/05/2015,02:54:09,8,3960,2,56750,19824
10/05/2015,03:05:08,8,3960,2,57007,19824
10/05/2015,03:16:10,8,3960,2,57040,19824
10/05/2015,03:27:00,8,3960,2,57633,19824
10/05/2015,03:37:54,8,3960,2,58306,19824
10/05/2015,03:48:47,8,3960,2,58984,19824

将行保存到文件很简单。

Answer 2

什么是"webrequest object"？ Tornado 的请求对象有一个 body 属性，但没有 body 方法。假设您的意思是 Tornado 请求并且在 request.body 上使用括号是一个拼写错误，您可以使用请求的 files 属性。 body 始终是原始请求主体，在本例中包含一个 multipart/form-data 包装器。 Tornado 识别 multipart/form-data 内容类型（对于非流式请求）并将其解析为 files 对象。在这种情况下，您可以在 request.files["file"][0].body.

下找到您的 csv 文件

webrequest 对象到龙卷风中的 csv

webrequest object to csv in tornado

python

csv

tornado