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C# Socket 获得网页内容,总是不行

0
悬赏园豆:10 [已关闭问题] 关闭于 2014-01-21 09:56

 

 

由于连接方在一段时间后没有正确答复或连接的主机没有反应,连接尝试失败。

 

 

源错误:

行 188:                    byte[] buffer = new byte[256];
行 189:
行 190:                    iNumber = socket.Receive(buffer, buffer.Length, SocketFlags.None);
行 191:
行 192:                    if (buffer.Length > iNumber)

 

 

源代码:

 

        byte[] GetSocketBytes(Uri uri, byte[] headersData)
        {
            int iTotalCount = 0;

            List<byte[]> responseBytes = new List<byte[]>(10);

            using (Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
            {
                //socket.ReceiveTimeout = 10 * 1000;
                //socket.SendTimeout = 3 * 1000;

                socket.Connect(uri.Host, uri.Port);

                /*
                int connectTimes = 0;

            lable:

                connectTimes++;

                if (socket.Connected)
                {
                 */


                socket.Send(headersData);

                byte[] bufferFirst = new byte[256];
                int iNumber = 0;



                iNumber = socket.Receive(bufferFirst, bufferFirst.Length, SocketFlags.None);



                iTotalCount = iNumber;

                if (bufferFirst.Length > iNumber)
                {
                    byte[] temBuffer = new byte[iNumber];

                    Array.Copy(bufferFirst, 0, temBuffer, 0, iNumber);

                    responseBytes.Add(temBuffer);
                }
                else
                {
                    responseBytes.Add(bufferFirst);
                }



                while (iNumber > 0)
                {
                    byte[] buffer = new byte[256];

                    iNumber = socket.Receive(buffer, buffer.Length, SocketFlags.None);

                    if (buffer.Length > iNumber)
                    {
                        byte[] temBuffer = new byte[iNumber];

                        Array.Copy(buffer, 0, temBuffer, 0, iNumber);

                        responseBytes.Add(temBuffer);
                    }
                    else
                    {
                        responseBytes.Add(buffer);
                    }

                    iTotalCount += iNumber; //索引位置增加
                }

                /*
                }
                else
                {
                    if (connectTimes <= 3)
                    {
                        System.Threading.Thread.Sleep(10);
                        goto lable;
                    }

                }

                */



                socket.Close();
                socket.Dispose();
            }



            byte[] receiveData = new byte[iTotalCount];

            int fillCount = 0;

            for (int i = 0; i < responseBytes.Count; i++)
            {
                byte[] data = responseBytes[i];

                Array.Copy(data, 0, receiveData, fillCount, data.Length);

                fillCount += data.Length;
            }

            return receiveData;
        }
fun5的主页 fun5 | 初学一级 | 园豆:4
提问于:2013-12-19 12:15
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所有回答(3)
0

如果实在不行 你可以试一下 webclient这个类 它有load方法 可以下载html

wolfy | 园豆:2636 (老鸟四级) | 2013-12-19 13:13
0

抓包分析下,你的 headersData 可能不是格式正确的 HTTP HEADER 内容。

Launcher | 园豆:45045 (高人七级) | 2013-12-19 13:24
0

LS应该是正解,如果你浏览器能打开,socket打不开,那只能说你用socket法的请求报文是错误的

吴瑞祥 | 园豆:28831 (高人七级) | 2013-12-31 10:12
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