接口开发，截取字符串，COOKIE取值问题

Question

int startIndex = html.IndexOf("{\ "access_token\":\"") + 17;
string result= html.Substring(startIndex, html.IndexOf("\",", startIndex) - startIndex);

Answer 1

获得accessToken
 string a = "{ \"access_token\":\"MNZnmcYwsJw9oc6gNVU3vmha5IRihiZBXFtxEuYQZOcoigiJXcxt6vmNucEoOgWizvEKEGgPXKrXBrCaTVerLw\", \"token_type\":\"Bearer\", \"expires_in\":432000, \"refresh_token\":\"\" } ";
            var access_token = JsonConvert.DeserializeAnonymousType(a, new { access_token="" }).access_token;

Answer 2

我已经引用了
using Newtonsoft.Json.Net.dll;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json.Converters;
为什么提示错误呢？
错误 1 当前上下文中不存在名称“JsonConvert”

Answer 3

Newtonsoft.Json.JsonConvert
Newtonsoft.Json.dll, v4.0.30319

Answer 4

麻烦看下哪里有问题？
 string content = sr.ReadToEnd();
                string a = content;
                var accesstoken = JsonConvert.DeserializeAnonymousType(a, new { access_token = "" }).access_token;
                Response.Write(accesstoken);
                HttpCookie cookie = new HttpCookie("access_token");
                cookie.Value = accesstoken;
                cookie.Expires = DateTime.Now.AddSeconds(60); 
                Response.AppendCookie(cookie);
//获取cookies
  HttpCookie cookie = Request.Cookies["access_token"];
            if (Request.Cookies["access_token"] == null)
             Response.Write("no");
            // Response.Redirect("https://www.baidu.com/cgi-bin/login?ticket=" + cookie);
            else   
            Response.Write(cookie);无法获取cookies，是怎么回事？

Answer 5

AddSeconds 改成AddMinutes 试试

Answer 6

取得值是：
System.Web.HttpCookie
什么意思？

Answer 7

你已经取到这个cookie了
看一下cookie.Value

Answer 8

 HttpCookie cookie = new HttpCookie("access_token");
                cookie.Value = "5aaaaaaaaaa";
                cookie.Expires = DateTime.Now.AddMinutes(60);
                Response.AppendCookie(cookie);
把alue设成5aaaaaaaaaa  但是取出来还是这样：System.Web.HttpCookie

Answer 9

cookie = Request.Cookies["access_token"];
            if (Request.Cookies["access_token"] == null)
                Response.Write("no");
            else
                Response.Write(cookie.Value);