带验证码的Ajax登录，提示验证码不正确

131415

URL地址是：
http://www.网址.com/index.php?/ajax/check_login/username/这里是用户名/password/这里是密码/regcode/7034/verify/08login/expires/604800/cmslogin/1/datatype/json/domain/www.网址.com&callback=jQuery110208565981670715967_1532587707493&_=1532587707494

[C#] 纯文本查看 复制代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using CsharpHttpHelper;
using System.IO;
using CsharpHttpHelper.Enum;
using System.Net;

namespace TestDock
{
    public partial class frmLogin : Form
    {
        public frmLogin()
        {
            InitializeComponent();
            DateTime dt = DateTime.Now;
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
            int curTime= (int)(dt - startTime).TotalSeconds; 
            HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = "http://www.510376.com/tools/regcode.php?verify=08login&t=",
                Method = "get",//URL     可选项 默认为Get   
            };
            Image img = http.GetImage(item);
            pictureBox1.Image = img;
            HttpResult result = http.GetHtml(item);
            //获取请求的Cookie
            Cookies = result.Cookie;
        }

        private void btnExit_Click(object sender, EventArgs e)    //单击关闭按钮事件
        {
            Application.Exit();
        }
        string Cookies = string.Empty;
        private void btnOK_Click(object sender, EventArgs e)  //点击确定按钮事件
        {
            string u = txtUser.Text.Trim();
            string p = txtPass.Text.Trim();
            //万能框架对象

            HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = "http://www.510376.com/index.php?/ajax/check_login/username/这里是用户名/password/这里是密码/regcode/7034/verify/08login/expires/604800/cmslogin/1/datatype/json/domain/www.510376.com&callback=jQuery110208565981670715967_1532587707493&_=1532587707494",//URL     必需项
                Method = "GET",//URL     可选项 默认为Get
                //Encoding = "System.Text.DBCSCodePageEncoding",//编码格式（utf-8,gb2312,gbk）     可选项 默认类会自动识别
                Timeout = 100000,//连接超时时间     可选项默认为100000
                ReadWriteTimeout = 30000,//写入Post数据超时时间     可选项默认为30000
                IsToLower = false,//得到的HTML代码是否转成小写     可选项默认转小写
                //Cookie = cookie,//字符串Cookie     可选项
                UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0",//用户的浏览器类型，版本，操作系统     可选项有默认值
                Accept = "text/html, application/xhtml+xml, */*",//    可选项有默认值
                ContentType = "text/html",//返回类型    可选项有默认值
                Referer = "http://www.510376.com/login.php",//来源URL     可选项
                Allowautoredirect = false,//是否根据３０１跳转     可选项
                AutoRedirectCookie = false,//是否自动处理Cookie     可选项
                ResultType = ResultType.String,//返回数据类型，是Byte还是String
            };
            MessageBox.Show(txtCode.Text.Trim());
            HttpResult result = http.GetHtml(item);
            string html = result.Html;
            string cookie = result.Cookie;
            txtHtml.Text = html ;

        }
        /// <summary>
        /// 字节数组生成图片
        /// </summary>
        /// <param name="Bytes">字节数组</param>
        /// <returns>图片</returns>
        private Image byteArrayToImage(byte[] Bytes)
        {
            MemoryStream ms = new MemoryStream(Bytes);
            return Bitmap.FromStream(ms, true);
        }

    }
}

合久必婚

看情况应该是没带上cookie

131415

合久必婚 发表于 2018-7-27 09:59
看情况应该是没带上cookie

参考这个贴子，http://www.sufeinet.com/thread-13273-1-8.html 修改了申明对象的位置（HttpHelper http = new HttpHelper();），解决了传递Cookie时变量不存在的问题。
但对比了两次请求的cookie,不一样。

131415

这个问题解决了，主要是
Image img = http.GetImage(item);
            pictureBox1.Image = img;
这一块代码的问题，其中http.GetImage(item)的时候，多请求了一次验证码
其调用的ByteToImage函数里的代码：
MemoryStream ms = new MemoryStream(b);
return Bitmap.FromStream(ms, true);