python发送HTTP请求

本代码包含 Python 使用 GET/HEAD/POST 方法进行 HTTP 请求


1. [代码]GET 方法    

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>>> import httplib 
>>> conn = httplib.HTTPConnection( "www.python.org"
>>> conn.request( "GET" , "/index.html"
>>> r1 = conn.getresponse() 
>>> print r1.status, r1.reason 
200 OK 
>>> data1 = r1.read() 
>>> conn.request( "GET" , "/parrot.spam"
>>> r2 = conn.getresponse() 
>>> print r2.status, r2.reason 
404 Not Found 
>>> data2 = r2.read() 
>>> conn.close()

2. [代码]HEAD 方法    

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>>> import httplib 
>>> conn = httplib.HTTPConnection( "www.python.org"
>>> conn.request( "HEAD" , "/index.html"
>>> res = conn.getresponse() 
>>> print res.status, res.reason 
200 OK 
>>> data = res.read() 
>>> print len (data) 
0
>>> data = = '' 
True

3. [代码]POST 方法    跳至 [1] [2] [3] [全屏预览]

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>>> import httplib, urllib 
>>> params = urllib.urlencode({ 'spam' : 1 , 'eggs' : 2 , 'bacon' : 0 }) 
>>> headers = { "Content-type" : "application/x-www-form-urlencoded"
...            "Accept" : "text/plain"
>>> conn = httplib.HTTPConnection( "musi-cal.mojam.com:80"
>>> conn.request( "POST" , "/cgi-bin/query" , params, headers) 
>>> response = conn.getresponse() 
>>> print response.status, response.reason 
200 OK 
>>> data = response.read() 
>>> conn.close()


以下是Python3中使用urllib2的方法,更方便

1. [代码]GET 方法    

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>>> import httplib 
>>> conn = httplib.HTTPConnection( "www.python.org"
>>> conn.request( "GET" , "/index.html"
>>> r1 = conn.getresponse() 
>>> print r1.status, r1.reason 
200 OK 
>>> data1 = r1.read() 
>>> conn.request( "GET" , "/parrot.spam"
>>> r2 = conn.getresponse() 
>>> print r2.status, r2.reason 
404 Not Found 
>>> data2 = r2.read() 
>>> conn.close()

2. [代码]HEAD 方法    

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>>> import httplib 
>>> conn = httplib.HTTPConnection( "www.python.org"
>>> conn.request( "HEAD" , "/index.html"
>>> res = conn.getresponse() 
>>> print res.status, res.reason 
200 OK 
>>> data = res.read() 
>>> print len (data) 
0
>>> data = = '' 
True

3. [代码]POST 方法    跳至 [1] [2] [3] [全屏预览]

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>>> import httplib, urllib 
>>> params = urllib.urlencode({ 'spam' : 1 , 'eggs' : 2 , 'bacon' : 0 }) 
>>> headers = { "Content-type" : "application/x-www-form-urlencoded"
...            "Accept" : "text/plain"
>>> conn = httplib.HTTPConnection( "musi-cal.mojam.com:80"
>>> conn.request( "POST" , "/cgi-bin/query" , params, headers) 
>>> response = conn.getresponse() 
>>> print response.status, response.reason 
200 OK 
>>> data = response.read() 
>>> conn.close()
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