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？

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
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",
            "Accept": "application/json, text/javascript, */*; q=0.01",
            "Accept-Language": "zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3",
            "Accept-Encoding": "gzip, deflate, br",
            "Content-Type": "application/json; charset=utf-8",
            # "VerificationToken": "xxx...",  # 已省略
            "X-Requested-With": "XMLHttpRequest",
            #　"Referer": "https://passport.cnblogs.com/user/signin?ReturnUrl=http%3a%2f%2fmsg.cnblogs.com%2fsend%2f%e4%b8%8a%e6%b5%b7-%e6%82%a0%e6%82%a0",
            "Content-Length": "385",
            "Cookie": "xxx.....",   # 已省略
            "Connection": "keep-alive"
            }

#  登录的参数
payload = {"input1":"xxx",
           "input2":"xxx",
           "remember":True}

s = requests.session()
r = s.post(url, json=payload, headers=headers,verify=False)
print r.json()

# 保存草稿箱
url2= "https://i.cnblogs.com/EditPosts.aspx?opt=1"
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",
         }
r2 = s.post(url2, data=http://www.mamicode.com/body, verify=False)
print r.content

这里我是用保存草稿箱写的案例，小伙伴们可以试下自动发帖

（备注：别使用太频繁了哦，小心封号嘿嘿！！！）

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python接口自动化3-自动发帖（session）