python构造一个http请求
http的request通常有4个方法get,post,put,delete,分别对应于查询,更新,添加,删除。我们经常用到的也就get,post。
1.用python构造get
#build request for accessed url
homeReq = urllib.request.Request(
url = csdnAccessModuleUrl
)
homeReq.add_header('Accept', 'text/html, application/xhtml+xml, */*');
homeReq.add_header('Accept-Language', 'en-US')
homeReq.add_header('Accept-Encoding', 'gzip, deflate')
homeReq.add_header('Connection', 'Keep-Alive');
homeReq.add_header('Referer', 'http://passport.csdn.net/account/login?from='+urllib.parse.quote(moduleUrl))#http%3a%2f%2fwrite.blog.csdn.net%2f')
homeReq.add_header('User-Agent', 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)');
#open access url
resp = urllib.request.urlopen(homeReq)
homeReq = urllib.request.Request(
url = csdnAccessModuleUrl
)
homeReq.add_header('Accept', 'text/html, application/xhtml+xml, */*');
homeReq.add_header('Accept-Language', 'en-US')
homeReq.add_header('Accept-Encoding', 'gzip, deflate')
homeReq.add_header('Connection', 'Keep-Alive');
homeReq.add_header('Referer', 'http://passport.csdn.net/account/login?from='+urllib.parse.quote(moduleUrl))#http%3a%2f%2fwrite.blog.csdn.net%2f')
homeReq.add_header('User-Agent', 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)');
#open access url
resp = urllib.request.urlopen(homeReq)
2.用python构造post
#build request for login url
#post data
postdata = {
'u':username,
'p':password,
'remember':'1',
't':'log',
'f':urllib.parse.quote(moduleUrl),
}
postdata = urllib.parse.urlencode(postdata).encode('utf-8')
print(postdata)
req = urllib.request.Request(
url = csdnLoginUrl,
data = postdata)
req.add_header('Accept', 'text/html, application/xhtml+xml, */*');
req.add_header('Accept-Language', 'en-US')
req.add_header('Accept-Encoding', 'gzip, deflate')
req.add_header('Connection', 'Keep-Alive');
req.add_header('Referer', csdnAccessModuleUrl)
req.add_header('User-Agent', 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)');
#open login url
r = urllib.request.urlopen(req)
#post data
postdata = {
'u':username,
'p':password,
'remember':'1',
't':'log',
'f':urllib.parse.quote(moduleUrl),
}
postdata = urllib.parse.urlencode(postdata).encode('utf-8')
print(postdata)
req = urllib.request.Request(
url = csdnLoginUrl,
data = postdata)
req.add_header('Accept', 'text/html, application/xhtml+xml, */*');
req.add_header('Accept-Language', 'en-US')
req.add_header('Accept-Encoding', 'gzip, deflate')
req.add_header('Connection', 'Keep-Alive');
req.add_header('Referer', csdnAccessModuleUrl)
req.add_header('User-Agent', 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)');
#open login url
r = urllib.request.urlopen(req)
通过上面2个例子我们可以发现, 当Request的postdata赋值时,则为post方法,默认为get。
https://muzizongheng.blog.csdn.net/