Python2和Python3提交Get和Post请求及异常处理(try except)

本文主要介绍Python中，Python2和Python3发送提交Get和Post请求的方法及示例代码，包括请求中出现异常的处理(try except)。

1、Python2中Get和Post请求

1）Get请求

#coding=utf-8import urllibimport urllib2import sysreload(sys)sys.setdefaultencoding('utf8')word = urllib.urlencode({"wd":"wonhero"})url = 'http://www.baidu.com/s' + '?' + wordtry:    request = urllib2.Request(url)    ##windows中cmd中乱码，可以使用.encode("gbk","ignore")试试    print urllib2.urlopen(request).read().decode('utf-8')except Exception,e:    print(e)

2）Post请求

#coding=utf-8
import urllib
import urllib2
import sys
reload(sys)
sys.setdefaultencoding('utf8')
formdata = {
    'name':'wonhero'
}
data = urllib.urlencode(formdata)
try:
    request = urllib2.Request(url = "http://httpbin.org/post", data=data)
    response = urllib2.urlopen(request)
    print response.read()
except Exception,e:
    print(e)

2、Python3中Get和Post请求

1）Get请求

import urllib.requestimport urllib.parsedata = urllib.parse.urlencode({'wd':'wonhero'})url  = 'http://wwww.baidu.com/s?' + data# url = 'http://www.baidu.com/s?wd=' + urllib.parse.quote('wonhero')try:    response = urllib.request.urlopen(url)    print (response.read().decode('utf-8'))except Exception as e:    print(e)

2）Post请求

import urllib.requestimport urllib.parsedata = bytes(urllib.parse.urlencode({'name':'wonhero'}),encoding='utf8')# url = 'http://www.baidu.com/s?wd=' + urllib.parse.quote('wonhero')try:    response = urllib.request.urlopen('http://httpbin.org/post',data=data)    print (response.read().decode('utf-8'))except Exception as e:    print(e)