前言
上一篇模拟登录博客园，但这只是第一步，一般登录后，还会有其它的操作，如发帖，评论等，这时候如何保持会话呢？
（敲黑板！！！由于博客园最近登录机制变了，登录全部走cookie登录）
一、session简介
1.查看帮助文档,贴了一部分，后面省略了
>>import requests
>>help(requests.session())
class Session(SessionRedirectMixin)
| A Requests session.
|
| Provides cookie persistence, connection-pooling, and configuration.
|
| Basic Usage::
|
| >>> import requests
| >>> s = requests.Session()
| >>> s.get('http://httpbin.org/get')
| <Response [200]>
|
| Or as a context manager::
|
| >>> with requests.Session() as s:
| >>> s.get('http://httpbin.org/get')
| <Response [200]>
二、使用session登录
1.使用session登录只需在上一篇基础上稍做修改
# coding:utf-8
import requests
url = "https://passport.cnblogs.com/user/signin"
headers = {
头部信息已省略
}
payload = {"input1":"xxx",
"input2":"xxx",
"remember":True}
# r = requests.post(url, json=payload, headers=headers,verify=False)
# 修改后如下
s = requests.session()
r = s.post(url, json=payload, headers=headers,verify=False)
print r.json()
三、保存编辑
1.先打开我的随笔，手动输入内容后，打开fiddler抓包
2.把body的参数内容写成字典格式，有几个空的参数不是必填的，可以去掉
body = {"__VIEWSTATE": "",
"__VIEWSTATEGENERATOR":"FE27D343",
"Editor$Edit$txbTitle":"这是我的标题：上海-悠悠",
"Editor$Edit$EditorBody":"<p>这里是中文内容：http://www.cnblogs.com/yoyoketang/</p>",
"Editor$Edit$Advanced$ckbPublished":"on",
"Editor$Edit$Advanced$chkDisplayHomePage":"on",
"Editor$Edit$Advanced$chkComments":"on",
"Editor$Edit$Advanced$chkMainSyndication":"on",
"Editor$Edit$lkbDraft":"存为草稿",
}
3.用上面的session继续发送post请求
4.执行后，查看我的草稿箱就多了一条新增的了
四、参考代码
# coding:utf-8
import requests
# 先打开登录首页，获取部分cookie
url = "https://passport.cnblogs.com/user/signin"
headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0"
} # get方法其它加个ser-Agent就可以了
s = requests.session()
r = s.get(url, headers=headers,verify=False)
print s.cookies
# 添加登录需要的两个cookie
c = requests.cookies.RequestsCookieJar()
c.set('.CNBlogsCookie', '这里是抓到的') # 填上面抓包内容
c.set('.Cnblogs.AspNetCore.Cookies','这里是抓到的') # 填上面抓包内容
c.set('AlwaysCreateItemsAsActive',"True")
c.set('AdminCookieAlwaysExpandAdvanced',"True")
s.cookies.update(c)
print s.cookies
# 登录成功后保存编辑内容
r1 = s.get("https://i.cnblogs.com/EditPosts.aspx?opt=1", headers=headers, verify=False)
# 保存草稿箱
url2= "https://i.cnblogs.com/EditPosts.aspx?opt=1"
body = {"__VIEWSTATE": "",
"__VIEWSTATEGENERATOR":"FE27D343",
"Editor$Edit$txbTitle":"这是3111",
"Editor$Edit$EditorBody":"<p>这里111：http://www.cnblogs.com/yoyoketang/</p>",
"Editor$Edit$Advanced$ckbPublished":"on",
"Editor$Edit$Advanced$chkDisplayHomePage":"on",
"Editor$Edit$Advanced$chkComments":"on",
"Editor$Edit$Advanced$chkMainSyndication":"on",
"Editor$Edit$Advanced$txbEntryName":"",
"Editor$Edit$Advanced$txbExcerpt":"",
"Editor$Edit$Advanced$tbEnryPassword":"",
"Editor$Edit$lkbDraft":"存为草稿",
}
r2 = s.post(url2, data=body, verify=False)
print r.content
（备注：别使用太频繁了哦，小心封号嘿嘿！！！）
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