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标题: CSharp WinForm WebBrowser 登录百度知道 [打印本页]

作者: zhl715474578 时间: 2014-3-14 18:59
标题: CSharp WinForm WebBrowser 登录百度知道
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 System.Net;
using System.IO;
using System.Web;

namespace CSharp_WinForm_WebBrowser_登录百度
{
public partial class Form1 : Form
{
      //非静态的不能直接使用，要新建一个对象来调用
      CookieContainer cc = new CookieContainer();
      public Form1()
      {
         InitializeComponent();
      }

      private void button1_Click(object sender, EventArgs e)
      {
         #region 账号密码POST进去
         //账号密码POST进去
         string BAIDU_Url = "http://passport.baidu.com/?login";
         //请求网页
         HttpWebRequest req = (HttpWebRequest)WebRequest.Create(BAIDU_Url);
         req.Method = "POST";
         req.ContentType = "application/x-www-form-urlencoded";
         req.AllowAutoRedirect = false;
         //把账号密码登录
         byte[] postData = System.Text.Encoding.Default.GetBytes("username=" + this.textBox1.Text + "&password=" + this.textBox2.Text + "&men_pass=");

         req.ContentLength = postData.Length;
         req.CookieContainer = cc;
         using (Stream sm = req.GetRequestStream())//请求的数据流
         {
            sm.Write(postData, 0, postData.Length);
         }
         #endregion

         string strResult;//定义一个字符串来得到读出数据的值
         //回应网页,资源来自网页中
         HttpWebResponse res = (HttpWebResponse)req.GetResponse();
         res.Cookies = cc.GetCookies(req.RequestUri);//获取Cookies实例
         using (Stream smRes = res.GetResponseStream())//用来获取从服务器中的数据流
         {
            using (StreamReader sr = new StreamReader(smRes, System.Text.Encoding.Default))
            {
                  strResult = sr.ReadToEnd();
            }
         }
         res.Close();

         req = (HttpWebRequest)WebRequest.Create(" http://zhidao.baidu.com/q?ct=17&rn=25&lm=393738&tn=ikpsask2");
         req.CookieContainer = cc;
         res = (HttpWebResponse)req.GetResponse();
         using (Stream smRes = res.GetResponseStream())
         {
            using (StreamReader sr = new StreamReader(smRes, System.Text.Encoding.Default))
            {
                  strResult = sr.ReadToEnd();
            }
         }
         res.Close();

         string filename = Path.GetTempFileName();
         using (StreamWriter sw = new StreamWriter(filename, false, System.Text.Encoding.Default))
         {
            sw.Write(strResult);
         }
         this.webBrowser1.Navigate("file://"+filename);
      }
}
}
其中：req = (HttpWebRequest)WebRequest.Create(" http://zhidao.baidu.com/q?ct=17&rn=25&lm=393738&tn=ikpsask2");
create后面的参数是什么？为什么我加上那个会出现网站访问错误

作者: 南方 时间: 2014-3-16 09:39
因为网址参数是动态生成的

作者: zhl715474578 时间: 2014-3-16 18:50
非常感谢你帮了我的大忙，真的太感谢你啦！

作者: liu67667 时间: 2014-10-27 07:16
强烈支持楼主ing……

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