Python编写API接口

时间:2022-06-13 16:29:05

要求通过http://192.168.50.74/aptest/calc/?a=aa&c=00&b=bb进行访问,参数a="aa",b="bb",c="00"

1.编写url:浏览器会自动将?后面识别为参数。

urlpatterns = [
url(r'^calc/$', aptest.calc, name='calc'),
]

2.编写view:

def calc(request):
a = request.GET['a']
b = request.GET['b']
c = request.GET['c']
print a,b,c
m = a+b+c
return HttpResponse(str(m))

浏览器返回json类型结果:

import json
def calc(request):
a = request.GET['a']
b = request.GET['b']
c = request.GET['c']
print a,b,c
m = a+b+c
n = b+a
rets = {"m":m,'n':n}
retsj = json.dumps(rets) #返回json类型数据 {"m": "aabb00", "n": "bbaa"}
return HttpResponse(retsj)

在浏览器中访问http://192.168.50.74/aptest/calc/?a=aa&c=00&b=bb,返回值为:“aabb00”

其中http://192.168.50.74/aptest/calc为接口地址,a=aa&c=00&b=bb为所接收到的参数,如下图所示:

Python编写API接口

在python中访问该接口:

import urllib,urllib2,cookielib

url = 'http://192.168.50.74/aptest/calc/?' #定义接口地址
headers = {
'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko'
}
headers = {'User-agent':'Mozilla/5.0'} #---OK
url_args = urllib.urlencode({ #定义参数
"a":'aa',
"b":'bb',
"c":''})
print url_args #返回:a=aa&c=00&b=bb
urls = '%s%s' %(url,url_args)
print urls #返回:http://192.168.50.74/aptest/calc/?a=aa&c=00&b=bb
req = urllib2.Request(url=urls,headers=headers) #需要添加一个header,否则会提示403forbidden
print urllib2.urlopen(req).read() #返回:aabb00
#urllib2.urlopen()函数不支持验证、cookie或者其它HTTP高级功能。要支持这些功能,必须使用build_opener()函数创建自定义Opener对象