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TCP Client

Posted on 2009-07-16 13:23 Hero 阅读(222) 评论(0)  编辑 收藏 引用 所属分类: C#积累
  1dir
 14
 15namespace Client
 16{
 17    public partial class PictureClient : Form
 18    {
 19        public PictureClient()
 20        {
 21            InitializeComponent();
 22        }

 23
 24        private void button_ListPicture_Click( object sender, EventArgs e )
 25        {
 26            const int bufferSize = 4096;
 27            //连接服务器
 28            TcpClient client = new TcpClient();
 29            IPHostEntry host = Dns.GetHostEntry( Properties.Settings.Default.Server );
 30            client.Connect( host.AddressList[0], Properties.Settings.Default.Port );
 31
 32            //给服务器发送一个请求
 33            NetworkStream clientStream = client.GetStream();
 34            string request = "LIST";
 35            byte[] requestBuffer = Encoding.ASCII.GetBytes(( request ) );
 36
 37            clientStream.Write( requestBuffer, 0, requestBuffer.Length ) ;
 38
 39            //从服务器读取响应
 40            byte[] responseBuffer = new byte[bufferSize] ;
 41            MemoryStream memstream = new MemoryStream() ;
 42            int bytesRead = 0 ;
 43
 44            do 
 45            {
 46                bytesRead = clientStream.Read( responseBuffer, 0, bufferSize ) ;
 47                memstream.Write( responseBuffer, 0, bytesRead ) ;
 48            }
 while ( bytesRead > 0 );
 49
 50            clientStream.Close();
 51            client.Close();
 52
 53            byte[] buffer = memstream.GetBuffer();
 54            string response = Encoding.ASCII.GetString( buffer );
 55            string[] filenames = response.Split( ':' );
 56
 57            //为listBox设置源
 58            this.listBox_list.DataSource = filenames;
 59        }

 60
 61        private void button_GetPicture_Click( object sender, EventArgs e )
 62        {
 63            const int bufferSize = 4096;
 64
 65            //连接服务器
 66            TcpClient client = new TcpClient();
 67            IPHostEntry host = Dns.GetHostEntry( Properties.Settings.Default.Server );
 68            client.Connect( host.AddressList[0], Properties.Settings.Default.Port );
 69
 70            //创建网络流
 71            NetworkStream clientStream = client.GetStream();
 72
 73            //向服务器发出请求
 74            string request = "FILE:" + this.listBox_list.SelectedValue.ToString();
 75            byte[] requestBuffer = Encoding.ASCII.GetBytes( request );
 76            clientStream.Write( requestBuffer, 0, requestBuffer.Length );
 77
 78            byte[] responseBuffer = new byte[bufferSize] ;
 79            MemoryStream memstream = new MemoryStream();
 80            int bytesRead = 0;
 81
 82            do 
 83            {
 84                bytesRead = clientStream.Read( responseBuffer, 0, bufferSize );
 85                //写入内存中
 86                memstream.Write( responseBuffer, 0, bytesRead );
 87            }
 while ( bytesRead > 0 );
 88
 89            clientStream.Close();
 90            client.Close();
 91
 92            pictureBox_Picture.Image = Image.FromStream( memstream );
 93        }

 94
 95        private void button_GetPicture_Click_1( object sender, EventArgs e )
 96        {
 97
 98        }
        
 99   }

100}

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