Python 如何在Django中发布压缩字符串并解压缩该字符串?
我让服务器使用django,我想发布一个压缩字符串,然后在django中解压该字符串。我的操作系统是Ubuntu14.04,python的版本是2.7.6。我的django响应函数如下所示:Python 如何在Django中发布压缩字符串并解压缩该字符串?,python,django,Python,Django,我让服务器使用django,我想发布一个压缩字符串,然后在django中解压该字符串。我的操作系统是Ubuntu14.04,python的版本是2.7.6。我的django响应函数如下所示: # coding=utf-8 import json from django.http import HttpResponse import zlib def first_page(request): result = { "title": u"bye" } tr
# coding=utf-8
import json
from django.http import HttpResponse
import zlib
def first_page(request):
result = {
"title": u"bye"
}
try:
param = request.POST["content"]
a = param.encode("utf-8")
param = zlib.decompress(a)
result["result"] = param
except Exception, e:
print "error in line 21"
print e
result = json.dumps(result)
response = HttpResponse(result, content_type="application/json")
return response
# coding=utf-8
__author__ = 'lizhihao'
import zlib
import httplib
import urllib
httpClient = None
try:
a = "hello world! what are you doing!"
a = zlib.compress(a)
params = urllib.urlencode(
{
"content": a
}
)
headers = {
"Content-type": "application/x-www-form-urlencoded",
"Accept": "text/plain"
}
httpClient = httplib.HTTPConnection("localhost", 8000, timeout=30)
httpClient.request("POST", "/music_main_page", params, headers)
response = httpClient.getresponse()
print response.read()
except Exception, e:
print e
finally:
if httpClient:
httpClient.close()
然后我编写了一个测试用例来测试函数,函数的url是“music_main_page”,我的测试代码如下:
# coding=utf-8
import json
from django.http import HttpResponse
import zlib
def first_page(request):
result = {
"title": u"bye"
}
try:
param = request.POST["content"]
a = param.encode("utf-8")
param = zlib.decompress(a)
result["result"] = param
except Exception, e:
print "error in line 21"
print e
result = json.dumps(result)
response = HttpResponse(result, content_type="application/json")
return response
# coding=utf-8
__author__ = 'lizhihao'
import zlib
import httplib
import urllib
httpClient = None
try:
a = "hello world! what are you doing!"
a = zlib.compress(a)
params = urllib.urlencode(
{
"content": a
}
)
headers = {
"Content-type": "application/x-www-form-urlencoded",
"Accept": "text/plain"
}
httpClient = httplib.HTTPConnection("localhost", 8000, timeout=30)
httpClient.request("POST", "/music_main_page", params, headers)
response = httpClient.getresponse()
print response.read()
except Exception, e:
print e
finally:
if httpClient:
httpClient.close()
程序抛出异常:
准备解压缩数据时出错-2:流状态不一致
,如何修复错误?我打赌这与编码有关。尝试将您从请求中获得的unicode字符串转换。在解压缩之前,将[“内容”]
转换为字节字符串(换句话说,请执行.encode('latin-1')
而不是.encode('utf-8')
)
这个给我修好了。我太懒了,无法在完整的Django项目上重现您的bug,但我用它让您的字符串经历了大致的请求解析阶段:
>>> zlib.decompress(
... bytes_to_text(
... urlparse.parse_qsl(
... urllib.urlencode({"content":
... zlib.compress("hello world! what are you doing!")
... })
... )[0][1].decode('iso-8859-1'), 'utf-8'
... ).encode('utf-8')
... )
(其中字节到文本为。)
如果使用浏览器表单而不是脚本,会得到什么
无论如何,也许您不应该以已发布的表单内容发送压缩数据。它是为清晰的unicode文本而设计的,从我所看到的情况来看,这是把事情搞砸的原因
相反,您可以按原样发送压缩字节,然后使用读取数据,然后解压缩。或者,更好的是,设置好服务器端gzip压缩工作。我只使用这个函数bytes\u to\u text(),然后我就可以解压缩字符串。我不需要调用bytes\u to\u text(),因为它是由Django在访问请求时完成的。POST[“content”]…我把它放在这里只是为了说明提交时表单参数的处理过程。