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C# 三種方式實(shí)現(xiàn)Socket數(shù)據(jù)接收

 更新時(shí)間:2021年10月18日 08:40:18   作者:zls366  
這篇文章主要給大家分享三種實(shí)現(xiàn)C# 實(shí)現(xiàn)Socket數(shù)據(jù)接收的方式,接下倆小編就來為大家詳細(xì)介紹吧,需要的朋友可以參考一下

Stream.Read 方法

當(dāng)在派生類中重寫時(shí),從當(dāng)前流讀取字節(jié)序列,并將此流中的位置提升讀取的字節(jié)數(shù)。

語法:

public abstract int Read(byte[] buffer, int offset, int count)

參數(shù):

buffer : 字節(jié)數(shù)組。此方法返回時(shí),該緩沖區(qū)包含指定的字符數(shù)組,該數(shù)組的  offset 和 ( offset +  count -1) 之間的值由從當(dāng)前源中讀取的字節(jié)替換。

offset buffer 中的從零開始的字節(jié)偏移量,從此處開始存儲(chǔ)從當(dāng)前流中讀取的數(shù)據(jù)。

count : 要從當(dāng)前流中最多讀取的字節(jié)數(shù)。

返回值:

讀入緩沖區(qū)中的總字節(jié)數(shù)。如果當(dāng)前可用的字節(jié)數(shù)沒有請(qǐng)求的字節(jié)數(shù)那么多,則總字節(jié)數(shù)可能小于請(qǐng)求的字節(jié)數(shù),或者如果已到達(dá)流的末尾,則為零 (0)。

備注:

此方法的實(shí)現(xiàn)從當(dāng)前流中讀取最多的 count 個(gè)字節(jié),并將它們存儲(chǔ)在從  offset 開始的  buffer 中。流中的當(dāng)前位置提升已讀取的字節(jié)數(shù);但是,如果出現(xiàn)異常,流中的當(dāng)前位置保持不變。實(shí)現(xiàn)返回已讀取的字節(jié)數(shù)。僅當(dāng)位置當(dāng)前位于流的末尾時(shí),返回值才為零。如果沒有任何可用的數(shù)據(jù),該實(shí)現(xiàn)將一直阻塞到至少有一個(gè)字節(jié)的數(shù)據(jù)可讀為止。僅當(dāng)流中不再有其他的數(shù)據(jù),而且也不再需要更多的數(shù)據(jù)(如已關(guān)閉的套接字或文件尾)時(shí), Read 才返回 0。 即使尚未到達(dá)流的末尾,實(shí)現(xiàn)仍可以隨意返回少于所請(qǐng)求的字節(jié)。

之前一般采用如下方式進(jìn)行數(shù)據(jù)接收:

int recv;//定義接收數(shù)據(jù)長度變量
            IPEndPoint ipEnd = new IPEndPoint(IPAddress.Parse(textBox1.Text), int.Parse(textBox2.Text));//接收端所監(jiān)聽的接口,ip也可以用IPAddress.Any
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//初始化一個(gè)Socket對(duì)象
            socket.Bind(ipEnd);//綁定套接字到一個(gè)IP地址和一個(gè)端口上(bind());
            socket.Listen(10);
            while (true)
            {
                byte[] data = new byte[1024];//對(duì)data清零
                Socket clientSocket = socket.Accept(); //一旦接受連接,創(chuàng)建一個(gè)客戶端
                recv = clientSocket.Receive(data);
                if (recv == 0) //如果收到的數(shù)據(jù)長度小于0,則退出
                    break;
                string stringData = "0x" + BitConverter.ToString(data).Replace("-", " 0x").ToLower();
                                                                                                                  
                this.Invoke((EventHandler)delegate
                {
                    richTextBox1.Text += DateTime.Now.ToString("yy-MM-dd hh:mm:ss")  + stringData + "\n";
                });
            }


之前用的時(shí)候沒發(fā)現(xiàn)什么問題,但是今天在測試金屬門數(shù)據(jù)接收的時(shí)候發(fā)現(xiàn)會(huì)丟數(shù)據(jù),金屬門每隔十秒給我一次數(shù)據(jù),用上面這個(gè)差不多60秒才能收到一組數(shù)據(jù),針對(duì)以上問題,做了如下修改:

將數(shù)據(jù)接收放到 while (true)

將數(shù)據(jù)接收放到 while (true),數(shù)據(jù)接收正常

以下分別采用三種方式實(shí)現(xiàn)了數(shù)據(jù)的正常接收,代碼如下:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace MetalGate
{
    public partial class MainForm : Form
    {
        public MainForm()
        {
            InitializeComponent();
        }
        private BackgroundWorker demoBGWorker = new BackgroundWorker();
        static TcpClient tcpClient;
        static NetworkStream stream;
        private void MainForm_Load(object sender, EventArgs e)
        {
            textBox1.Text = "192.168.1.99";
            textBox2.Text = "8234";

        }
        //private void BGWorker_DoWork(object sender, DoWorkEventArgs e)
         private void BGWorker_DoWork()
        {
            
            var serverIPEndPoint = new IPEndPoint(IPAddress.Parse("192.168.1.99"), 8234); // 當(dāng)前服務(wù)器使用的ip和端口
            TcpListener tcpListener = new TcpListener(serverIPEndPoint);
            tcpListener.Start();
            Console.WriteLine("服務(wù)端已啟用......"); // 阻塞線程的執(zhí)行,直到一個(gè)客戶端連接
            tcpClient = tcpListener.AcceptTcpClient();
            Console.WriteLine("已連接.");
            stream = tcpClient.GetStream();          // 創(chuàng)建用于發(fā)送和接受數(shù)據(jù)的NetworkStream


            var t1 = new Thread(ReceiveMsg);
            t1.IsBackground = true;
            t1.Start();

        }
        private void BGWorker_DoWork1()
        {
            //在這里執(zhí)行耗時(shí)的運(yùn)算。
            int recv;//定義接收數(shù)據(jù)長度變量
            IPEndPoint ipEnd = new IPEndPoint(IPAddress.Parse(textBox1.Text), int.Parse(textBox2.Text));//接收端所監(jiān)聽的接口,ip也可以用IPAddress.Any
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//初始化一個(gè)Socket對(duì)象
            socket.Bind(ipEnd);//綁定套接字到一個(gè)IP地址和一個(gè)端口上(bind());
            socket.Listen(10);

            //創(chuàng)建監(jiān)聽線程
             Thread thread = new Thread(Listen);
             thread.IsBackground = true;
             thread.Start(socket);

          
        }
         /// <summary>
        /// 等待客戶端的連接 并且創(chuàng)建與之通信的Socket
        /// </summary>
        Socket socketSend;
        void Listen(object o)
        {
            try
            {
                Socket socketWatch = o as Socket;
                while (true)
                {
                    socketSend = socketWatch.Accept();//等待接收客戶端連接                  
                    //開啟一個(gè)新線程,執(zhí)行接收消息方法
                    Thread r_thread = new Thread(Received);
                    r_thread.IsBackground = true;
                    r_thread.Start(socketSend);
                }
            }
            catch { }
        }
        /// <summary>
         /// 服務(wù)器端不停的接收客戶端發(fā)來的消息
         /// </summary>
         /// <param name="o"></param>
         void Received(object o)
         {
             try
             {
                 Socket socketSend = o as Socket;
                 while (true)
                 {
                     //客戶端連接服務(wù)器成功后,服務(wù)器接收客戶端發(fā)送的消息
                     byte[] buffer = new byte[1024 * 1024 * 3];
                     //實(shí)際接收到的有效字節(jié)數(shù)
                     int len = socketSend.Receive(buffer);
                     if (len == 0)
                     {
                         break;
                     }
                    // string str = Encoding.UTF8.GetString(buffer, 0, len);
                    string stringData = "0x" + BitConverter.ToString(buffer, 0, len).Replace("-", " 0x").ToLower();
                    this.Invoke((EventHandler)delegate
                        {
                            richTextBox1.Text += DateTime.Now.ToString("yy-MM-dd hh:mm:ss -*- ") + stringData + "\n";
                        });
                }
            }
             catch { }
         }

        private void BGWorker_DoWork2()
        {
            int recv;//定義接收數(shù)據(jù)長度變量
            IPEndPoint ipEnd = new IPEndPoint(IPAddress.Parse(textBox1.Text), int.Parse(textBox2.Text));//接收端所監(jiān)聽的接口,ip也可以用IPAddress.Any
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//初始化一個(gè)Socket對(duì)象
            socket.Bind(ipEnd);//綁定套接字到一個(gè)IP地址和一個(gè)端口上(bind());
            socket.Listen(10);
            new Thread(delegate ()
            {
                Socket clientSocket = null;
                while (true)
                {
                    Stopwatch sw = new Stopwatch();
                    // 開始計(jì)時(shí)
                    sw.Start();

                    clientSocket = socket.Accept(); //一旦接受連接,創(chuàng)建一個(gè)客戶端

                    Task.Run(() =>
                    {
                        while (true)
                        {
                            byte[] data = new byte[50];//對(duì)data清零
                            recv = clientSocket.Receive(data, 0, data.Length, SocketFlags.None);
                            //if (recv == 0) //如果收到的數(shù)據(jù)長度小于0,則退出
                            //    break;
                            string stringData = "0x" + BitConverter.ToString(data, 0, recv).Replace("-", " 0x").ToLower();

                            this.Invoke((EventHandler)delegate
                            {
                                richTextBox1.Text += DateTime.Now.ToString("yy-MM-dd hh:mm:ss -*- ") + stringData + "\n";
                            });
                            //結(jié)束計(jì)時(shí)  
                            sw.Stop();
                            long times = sw.ElapsedMilliseconds;
                            this.Invoke((EventHandler)delegate
                            {
                                richTextBox1.Text += "執(zhí)行查詢總共使用了" + times + "毫秒" + "\n";
                            });
                        }
                    });
                }
            })
            { IsBackground = true }.Start();
        }

        void ReceiveMsg()
        {
            byte[] buffer = new byte[1024]; // 預(yù)設(shè)最大接受1024個(gè)字節(jié)長度,可修改
            int count = 0;
            try
            {
                while ((count = stream.Read(buffer, 0, buffer.Length)) != 0)
                {
                    string stringData = "0x" + BitConverter.ToString(buffer, 0, count).Replace("-", " 0x").ToLower();
                    Console.WriteLine($"{tcpClient.Client.LocalEndPoint.ToString()}:{DateTime.Now.ToString("yy-MM-dd hh:mm:ss -*- ") + stringData + "\n"}");
                    this.Invoke((EventHandler)delegate
                    {
                        richTextBox1.Text += DateTime.Now.ToString("yy-MM-dd hh:mm:ss -*- ") + stringData + "\n";
                    });
                }
            }
            catch(Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            
        }

            private void SendData(IPAddress remoteIP, int Port, byte[] bits)
        {
            //實(shí)例化socket               
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            IPEndPoint ipep = new IPEndPoint(remoteIP, Port);
            socket.Connect(ipep);
            //socket.Send(bits, 8, SocketFlags.None);
            socket.Send(bits);
            socket.Close();
        }

        private void btnListen_Click(object sender, EventArgs e)
        {
            //demoBGWorker.DoWork += BGWorker_DoWork;
            //demoBGWorker.RunWorkerAsync();
            //Task.Run(() =>
           // {
                BGWorker_DoWork2();
            //});
        }

        private void btnSend_Click(object sender, EventArgs e)
        {
            byte[] order = new byte[8];
            order = new byte[] { 0x80, 0x04, 0x00, 0x7F };
            SendData(IPAddress.Parse("192.168.1.100"), int.Parse("49558"), order);
            MessageBox.Show("指令發(fā)送成功");
        }
    }
}

到此這篇關(guān)于C# 三種方式實(shí)現(xiàn)Socket數(shù)據(jù)接收的文章就介紹到這了,更多相關(guān)C# 實(shí)現(xiàn)Socket數(shù)據(jù)接收內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家!

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