HttpWebRequest图片采集

2019-04-15 17:17发布

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string url = "http:"; public Form1() { InitializeComponent(); this.Controls.OfType().ToList().ForEach(x => x.Click += pictureBox_Click);//给窗体的所有pictureBox注册pictureBox_Click事件 } private void button1_Click(object sender, EventArgs e) { List < string> webHtml=new List (); List webTitle = new List(); //string[] webTitle; HttpWebRequest web = (HttpWebRequest)HttpWebRequest.Create(url); web.Proxy = null; HttpWebResponse weatherResponse = (HttpWebResponse)web.GetResponse(); //从Internet资源返回数据流 Stream webStream = weatherResponse.GetResponseStream();// StreamReader reader = new StreamReader(webStream, Encoding.UTF8 );//获取当前系统的编码 string Html = reader.ReadToEnd();//读取流 webStream.Close(); reader.Close();//关闭流 textBox2.Text = Html; string zhze = @"(?is).*?)alt"; //"; Regex pipei = new Regex(zhze,RegexOptions.Multiline);//(?is).*?) if (pipei.IsMatch(Html)) { MatchCollection strs = pipei.Matches (Html); foreach (Match str in strs ) { webHtml.Add(str.Groups["img"].Value); webTitle.Add(str.Groups["title"].Value); } //Match str = pipei.Match(webHtml); //webHtml = str.Groups["img"].Value ; //webTitle = str.Groups["title"].Value; //MessageBox.Show(webHtml); } else { MessageBox.Show("错误"); } HttpWebRequest web1; HttpWebResponse weatherResponse1; Stream webStream1; for (int i=1;i 6) return; web1 = (HttpWebRequest)HttpWebRequest.Create("http://" + webHtml[i]); //web1.Proxy = null; weatherResponse1 = (HttpWebResponse)web1.GetResponse(); //从Internet资源返回数据流 webStream1 = weatherResponse1.GetResponseStream();// PictureBox text =(PictureBox)this.Controls["PictureBox" + i.ToString()]; Label lb = (Label)this.Controls["Label" + i.ToString()]; text.Image = Image.FromStream(webStream1); lb.Text = webTitle[i]; webStream1.Close(); } }图片测试，留个脚印

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