asp.net 抓取

来源：互联网发布：windows 发送snmptrap 编辑：程序博客网时间：2024/06/08 15:10

aspx:

<asp:TextBox ID="test" runat="server" Width="1000" Height="500" TextMode="multiLine"></asp:TextBox>

cs:

//抓取内容

try
        {
            WebRequest request = WebRequest.Create("http://www.baidu.com/");
            WebResponse response = request.GetResponse();
            StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("gb2312"));

            test.Text = reader.ReadToEnd();

            reader.Close();
            reader.Dispose();
            response.Close();
        }
        catch (Exception ex)
        {
            test.Text = ex.Message;
        }

//抓取图片
            try
            {
                WebRequest request = WebRequest.Create("http://portrait7.sinaimg.cn/1859998982/blog/180.jpg");
                WebResponse response = request.GetResponse();
                Stream reader = response.GetResponseStream();

                FileStream writer = new FileStream("D:\\logo.jpg", FileMode.OpenOrCreate, FileAccess.Write);
                byte[] buff = new byte[1000000];
                int c = 0; //实际读取的字节数
                while ((c = reader.Read(buff, 0, buff.Length)) > 0)
                {
                    writer.Write(buff, 0, c);
                }
                writer.Close();
                writer.Dispose();

                reader.Close();
                reader.Dispose();
                response.Close();

                //test.Text = "保存成功！";
            }
            catch (Exception ex)
            {
                test.Text = ex.Message;
            }