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使用Socket传送文件!

来源：互联网 发布：php数组拼接成字符串 编辑：程序博客网 时间：2024/06/02 22:12
同事在他负责的项目中想使用Socket传送文件,我就写了一个测试的程序.
为了简单起见,测试里没有用多线程和异步方式.只是能把文件传过去.呵呵.代码如下:
服务器端:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Net.Sockets;
using System.Net;
namespace TransmitFileServer {

    public class Form1 : System.Windows.Forms.Form {
        private const string CMDGETFILE="GetTestFile";

        private System.Net.Sockets.TcpListener listener=null;
        private System.Windows.Forms.Button btnListen;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.TextBox txtStatus;

        private System.ComponentModel.Container components = null;

        public Form1() {

            InitializeComponent();

            string hostname=Dns.GetHostName();            //获得主机名
            IPHostEntry entry=Dns.Resolve(hostname);    //通过主机名得到IP列表
            IPEndPoint point=new IPEndPoint(entry.AddressList[0],10000);            //用第0个IP和10000端口实例化IPEndPoint
           
            listener=new TcpListener(point);                                        //也可以用其它的构造函数
        }

        protected override void Dispose( bool disposing ) {
            if( disposing ) {
                if (components != null) {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }

        Windows 窗体设计器生成的代码


        [STAThread]
        static void Main() {
            Application.Run(new Form1());
        }

        private void btnListen_Click(object sender, System.EventArgs e) {
            try {
                this.txtStatus.Text=string.Format("服务器正监听的IP为:{0},端口为:{1}",
                    ((IPEndPoint)listener.LocalEndpoint).Address,((IPEndPoint)listener.LocalEndpoint).Port);
                this.listener.Start();
                System.Net.Sockets.TcpClient client = this.listener.AcceptTcpClient();
                System.Net.Sockets.NetworkStream stream = client.GetStream();
                while(true) {
                    while(stream.DataAvailable) {
                        byte[] buff=new byte[1024];
                        int len=stream.Read(buff,0,buff.Length);
                        string cmd=System.Text.Encoding.Unicode.GetString(buff,0,len);
                        if (cmd==CMDGETFILE) {
                            System.IO.FileStream fs=System.IO.File.Open("Test.dat",System.IO.FileMode.Open,
                                System.IO.FileAccess.Read);
                            System.IO.BinaryReader br=new System.IO.BinaryReader(fs);
                            try {
                                this.txtStatus.Text="正在传输文件...";
                                while ((len=br.Read(buff,0,buff.Length))!=0) {
                                    if(stream.CanWrite) {
                                        stream.Write(buff,0,len);
                                    }
                                }
                                stream.Flush();
                                stream.Close();
                                this.txtStatus.Text="传输文件完毕!";
                                return;
                            }
                            catch(Exception ex) {
                                this.txtStatus.Text="错误:"+ex.Message;
                                return;
                            }
                            finally {
                                br.Close();
                            }
                        }
                        else {
                            this.txtStatus.Text="命令字非法!";
                        }
                    }
                }
            }
            catch(Exception ex) {
                MessageBox.Show(ex.Message);
            }
        }
    }
}


客户端:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Net.Sockets;
using System.Net;
namespace GetFileClient {

    public class Form1 : System.Windows.Forms.Form {
        private System.Net.Sockets.TcpClient client=null;
        private const string CMDGETFILE="GetTestFile";

        private System.Windows.Forms.TextBox txtStatus;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Button btnConnect;
        private System.Windows.Forms.Button btnReceive;

        private System.ComponentModel.Container components = null;

        public Form1() {

            InitializeComponent();

        }

        protected override void Dispose( bool disposing ) {
            if( disposing ) {
                if (components != null) {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }

        Windows 窗体设计器生成的代码

        [STAThread]
        static void Main() {
            Application.Run(new Form1());
        }

        private void btnConnect_Click(object sender, System.EventArgs e) {
            IPAddress ip=IPAddress.Parse("10.0.0.153");
            IPEndPoint remotepoint=new IPEndPoint(ip,10000);
            client=new TcpClient();
            try {
                client.Connect(remotepoint);
                this.txtStatus.Text="连接成功!";
            }
            catch(Exception ex) {
                this.txtStatus.Text="错误:"+ex.Message;
                client=null;
            }
        }

        private void btnReceive_Click(object sender, System.EventArgs e) {
            if(client==null) {
                MessageBox.Show("先连接服务器!");
                return;
            }
            NetworkStream stream=client.GetStream();
            string cmd=CMDGETFILE;
            byte[] bytcmd=System.Text.Encoding.Unicode.GetBytes(cmd);
            try {
                if (stream.CanWrite) {
                    this.txtStatus.Text="发送命令!";
                    stream.Write(bytcmd,0,bytcmd.Length);
                    while(true) {
                        if(stream.DataAvailable) {
                            if(stream.CanRead) {
                                FileStream fs=File.Open("Test.dat",FileMode.OpenOrCreate,FileAccess.Write);
                                BinaryWriter bw=new BinaryWriter(fs);
                                try {
                                    this.txtStatus.Text="正在接收文件";
                                    byte[] buff=new byte[1024];
                                    int len=0;
                                    while((len=stream.Read(buff,0,buff.Length))!=0) {
                                        bw.Write(buff,0,len);
                                        bw.Flush();
                                    }
                               
                                    this.txtStatus.Text="接收完毕!";
                                    return;
                                }
                                catch(Exception ex) {
                                    this.txtStatus.Text="错误:"+ex.Message;
                                    return;
                                }
                                finally {
                                    bw.Close();
                                }
                            }
                        }
                    }
                }
            }
            catch(Exception ex) {
                MessageBox.Show(ex.Message);
            }
        }
    }
}


由于小弟对这个也是一知半解,所以也就不做注解说明了,以免贻笑大方贻笑大方,呵呵.
php数组拼接成字符串 php数组拼接成字符串
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