python urllib urllib2 post get 初级
一直对urllib和urllib2是怎么区分post方法与get方法搞的不是很懂，今天参考这篇博客自己写了点测试代码试了一下，原来这么简单。
我是django在自己本地建了一个简单的测试网址，django的设置和url啥的就不多说了，为了简单起见，我的后台的函数是这样的：
from django.views.decorators.csrf import csrf_exempt
import json
@csrf_exempt
def test_get_post(request):
ret = {
'method': request.method,
'get_params': request.GET,
'post_params': request.POST,
}
return HttpResponse(json.dumps(ret))然后测试的main方法如下：
# -*- coding:utf-8 -*-
__author__ = 'shellbye.com@gmail.com'
import urllib
import urllib2
def this_is_a_post():
data = urllib.urlencode({"key": "value"})
post_request = urllib2.urlopen("http://127.0.0.1:8001/polls/", data)
print post_request.read()
def this_is_a_get():
get_without_data = urllib2.urlopen("http://127.0.0.1:8001/polls/")
print get_without_data.read()
get_with_data = urllib2.urlopen("http://127.0.0.1:8001/polls/?%s" % urllib.urlencode({"key": "value"}))
print get_with_data.read()
def get_post():
get_post_data = urllib2.urlopen("http://127.0.0.1:8001/polls/?%s" % urllib.urlencode({"key": "value"}),
urllib.urlencode({"key": "value"}))
print get_post_data.read()
if __name__ == "__main__":
this_is_a_get()
print "============================================================================"
this_is_a_post()
print "============================================================================"
get_post()函数的打印结果如下：
{"post_params": {}, "method": "GET", "get_params": {}}
{"post_params": {}, "method": "GET", "get_params": {"key": "value"}}
============================================================================
{"post_params": {"key": "value"}, "method": "POST", "get_params": {}}
============================================================================
{"post_params": {"key": "value"}, "method": "POST", "get_params": {"key": "value"}}
可以看出，其实这个urlopen是完全看有没有第二个参数来判断是不是post的，因为post的参数不是像get一样来自url。从第三个函数看的出来在使用post方法时，仍然可以同时用get方法。
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