Unity3D读取Socket的二进制图片

服务端：C#的Winfrom开发服务器，数据库是Accessusing System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Windows.Forms;using System.Data.OleDb;using System.IO;using System.NET;using System.Net.Sockets;using System.Threading;namespace WindowsForms_Server{    public partial class Form1 : Form    {        OleDbConnection conn; //Jet OLEDB:Database Password=        OleDbCommand cmd;        OleDbDataReader dr;        DataTable dt;        string str = null;        public Form1()        {            InitializeComponent();            TextBox.CheckForIllegalCrossThreadCalls = false;             //数据库的地址            conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\\DataSQL\\DB.mdb"); //Jet OLEDB:Database Password=            //conn.Open();            //SaveImage("C:\\Users\\123\\Desktop\\timg.jpg",conn);  //  两个 \\ 代表一个 / 字符串 (以下两种也都可以用)            //SaveImage(@"C:\Users\123\Desktop\timg.jpg", conn);            //SaveImage("C:/Users/123/Desktop/timg.jpg", conn);        }        private void button1_Click(object sender, EventArgs e)        {            conn.Open();            cmd = conn.CreateCommand();            cmd.CommandText = "select * from user_DB";  //表名            dr = cmd.ExecuteReader();            dt = new DataTable();            //文件名            if (dr.HasRows)            {                for (int i = 0; i < dr.FieldCount; i++)                {                    dt.Columns.Add(dr.GetName(i));                }                dt.Rows.Clear();            }            while (dr.Read())            {                DataRow row = dt.NewRow();                for (int i = 0; i < dr.FieldCount; i++)                {                    row[i] = dr[i];                }                dt.Rows.Add(row);            }            cmd.Dispose();            conn.Close();            dataGridView1.DataSource = dt;        }        private void button2_Click(object sender, EventArgs e)        {            conn.Open();            cmd = conn.CreateCommand();            cmd.CommandText = "select * from user_DB where ID=2";            dr = cmd.ExecuteReader();            dt = new DataTable();            if (dr.HasRows)            {                for (int i = 0; i < dr.FieldCount; i++)                {                    dt.Columns.Add(dr.GetName(i));                }                dt.Rows.Clear();            }            while (dr.Read())            {                DataRow row = dt.NewRow();                for (int i = 0; i < dr.FieldCount; i++)                {                    row[i] = dr[i];                }                dt.Rows.Add(row);            }            cmd.Dispose();            conn.Close();            dataGridView1.DataSource = dt;        }        private void button3_Click(object sender, EventArgs e)  //读取图片        {            byte[] buff = null;            Image image = null;            conn.Open();            cmd = conn.CreateCommand();            cmd.CommandText = "select img from user_DB where ID=5";            OleDbParameter p = new OleDbParameter();            p.Value = buff;            cmd.Parameters.Add(p);            cmd.ExecuteNonQuery();            dr = cmd.ExecuteReader();            dr.Read();            buff = (byte[])dr[0];            //while (dr.Read())            //{            //    buff = (byte[])dr.GetValue(0);            //}            dr.Close();            cmd.Dispose();            conn.Close();            MemoryStream ms = new MemoryStream(buff);            //ms.Position = 0;            image = System.Drawing.Image.FromStream(ms);            //Image image = Image.FromStream(ms);            Bitmap bmpt = new Bitmap(image);            pictureBox1.Image = bmpt;        }        private void SaveImage(string filepath, OleDbConnection con) //将图片以长二进制的形式存入数据库（只有如此才能读取图片        {            con.Open();            FileStream fs = new FileStream(filepath, FileMode.Open);            BinaryReader br = new BinaryReader(fs);            byte[] buff = br.ReadBytes((int)fs.Length);            OleDbCommand com = new OleDbCommand("update user_DB set img=@pic where ID=5", con);            com.Parameters.AddWithValue("@pic", buff);            com.ExecuteNonQuery();            con.Close();            com.Dispose();            br.Close();            fs.Close();        }        private void button4_Click(object sender, EventArgs e)  //浏览文件        {            OpenFileDialog ofd = new OpenFileDialog();            ofd.InitialDirectory = "D:\\";            if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)            {                txtSelectFile.Text = ofd.FileName;  //这里显示的文件路径会自动转义成 \\双斜杠            }            if (txtSelectFile.Text == "" || txtSelectFile.Text == null)            {                str = null;            }            else            {                str = txtSelectFile.Text;            }            ofd.FileName = null;    // 置空，不然点击此处时不选定，取消的话会报错            ofd = null;         // 置空，不然点击此处时不选定，取消的话会报错        }        private void button5_Click(object sender, EventArgs e)  //上传保存文件        {            if (str != null)            {                SaveImage(str, conn);                txtSelectFile.Text = null;                str = null;            }        }        Thread threadWatch = null; // 负责监听客户端连接请求的 线程；         Socket socketWatch = null;        Dictionary<string, Socket> dict = new Dictionary<string, Socket>();  //存储客户端对象池        Dictionary<string, Thread> dictThread = new Dictionary<string, Thread>();         private void button6_Click(object sender, EventArgs e)        {            socketWatch = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);             IPAddress ad = IPAddress.Parse("127.0.0.1");            IPEndPoint end = new IPEndPoint(ad, 8080);            try            {                socketWatch.Bind(end);            }            catch (SocketException se)            {                MessageBox.Show("异常：" + se.Message);                return;             }            socketWatch.Listen(10);            //创建负责监听的线程；             threadWatch = new Thread(WatchConnecting);            threadWatch.IsBackground = true;            threadWatch.Start();            textBox1.Text = "服务器启动成功！" + "\r\n";        }        void WatchConnecting()        {            while (true)  // 持续不断的监听客户端的连接请求；             {                // 开始监听客户端连接请求，Accept方法会阻断当前的线程；                 Socket sokConnection = socketWatch.Accept(); // 一旦监听到一个客户端的请求，就返回一个与该客户端通信的 套接字；                 lbOnline.Items.Add(sokConnection.RemoteEndPoint.ToString());                // 将与客户端连接的 套接字 对象添加到集合中；                 dict.Add(sokConnection.RemoteEndPoint.ToString(), sokConnection);                 Thread thr = new Thread(RecMsg);                thr.IsBackground = true;                thr.Start(sokConnection);                textBox1.Text = "客户端连接成功！" + "\r\n";                dictThread.Add(sokConnection.RemoteEndPoint.ToString(), thr);  //  将新建的线程 添加 到线程的集合中去。             }        }        void RecMsg(object sokConnectionparn)        {            Socket sokClient = sokConnectionparn as Socket;            while (true)            {                // 定义一个2M的缓存区；                 byte[] arrMsgRec = new byte[1024 * 1024 * 2];                // 将接受到的数据存入到输入  arrMsgRec中；                 int length = -1;                try                {                    length = sokClient.Receive(arrMsgRec); // 接收数据，并返回数据的长度；                 }                catch (SocketException se)                {                    textBox1.Text = "异常：" + se.Message;                    // 从 通信套接字 集合中删除被中断连接的通信套接字；                     dict.Remove(sokClient.RemoteEndPoint.ToString());                    // 从通信线程集合中删除被中断连接的通信线程对象；                     dictThread.Remove(sokClient.RemoteEndPoint.ToString());                    // 从列表中移除被中断的连接IP                     lbOnline.Items.Remove(sokClient.RemoteEndPoint.ToString());                     break;                }                catch (Exception e)                {                    textBox1.Text = "异常：" + e.Message;                    // 从 通信套接字 集合中删除被中断连接的通信套接字；                     dict.Remove(sokClient.RemoteEndPoint.ToString());                    // 从通信线程集合中删除被中断连接的通信线程对象；                     dictThread.Remove(sokClient.RemoteEndPoint.ToString());                    // 从列表中移除被中断的连接IP                     lbOnline.Items.Remove(sokClient.RemoteEndPoint.ToString());                     break;                }                if (arrMsgRec[0] == 0)  // 表示接收到的是数据；                 {                    string strMsg = System.Text.Encoding.Default.GetString(arrMsgRec, 1, length - 1);// 将接受到的字节数据转化成字符串；                                     }                if (arrMsgRec[0] == 1) // 表示接收到的是文件；                 {                    SaveFileDialog sfd = new SaveFileDialog();                    if (sfd.ShowDialog(this) == System.Windows.Forms.DialogResult.OK)                    {// 在上边的 sfd.ShowDialog（） 的括号里边一定要加上 this 否则就不会弹出 另存为 的对话框，而弹出的是本类的其他窗口，，这个一定要注意！！！【解释：加了this的sfd.ShowDialog(this)，“另存为”窗口的指针才能被SaveFileDialog的对象调用，若不加thisSaveFileDialog 的对象调用的是本类的其他窗口了，当然不弹出“另存为”窗口。】                         string fileSavePath = sfd.FileName;// 获得文件保存的路径；                         // 创建文件流，然后根据路径创建文件；                         using (FileStream fs = new FileStream(fileSavePath, FileMode.Create))                        {                            fs.Write(arrMsgRec, 1, length - 1);                            //ShowMsg("文件保存成功：" + fileSavePath);                        }                    }                }            }        }        private void button7_Click(object sender, EventArgs e)        {            byte[] buff = new byte[1024 * 1024 * 2];            conn.Open();            cmd = conn.CreateCommand();            cmd.CommandText = "select img from user_DB where ID=5";            OleDbParameter p = new OleDbParameter();            p.Value = buff;            cmd.Parameters.Add(p);            cmd.ExecuteNonQuery();            dr = cmd.ExecuteReader();            dr.Read();            buff = (byte[])dr[0];            byte[] buff1 = new byte[buff.Length + 1];            buff1[0] = 1;            Buffer.BlockCopy(buff, 0, buff1, 1, buff.Length);            dr.Close();            cmd.Dispose();            conn.Close();            string strKey = "";            strKey = lbOnline.Text.Trim();            if (string.IsNullOrEmpty(strKey))   // 判断是不是选择了发送的对象；             {                MessageBox.Show("请选择你要发送的好友！！！");            }            else            {                dict[strKey].Send(buff1);// 解决了 sokConnection是局部变量，不能再本函数中引用的问题；                 textBox1.Text = "发送消息成功！" + "\r\n";            }             //string strMsg = "服务器" + "\r\n" + "   -->" + "\r\n";            //byte[] arrMsg = System.Text.Encoding.Default.GetBytes(strMsg); // 将要发送的字符串转换成Utf-8字节数组；             //byte[] arrSendMsg = new byte[arrMsg.Length + 1];            //arrSendMsg[0] = 0; // 表示发送的是消息数据             //Buffer.BlockCopy(arrMsg, 0, arrSendMsg, 1, arrMsg.Length);            //string strKey = "";            //strKey = lbOnline.Text.Trim();            //if (string.IsNullOrEmpty(strKey))   // 判断是不是选择了发送的对象；             //{            //    MessageBox.Show("请选择你要发送的好友！！！");            //}            //else            //{            //    dict[strKey].Send(arrSendMsg);// 解决了 sokConnection是局部变量，不能再本函数中引用的问题；             //    textBox1.Text = "发送消息成功！" + "\r\n";            //}         }    }}Unity3D客户端：using UnityEngine;using System.Collections;using System;using System.Collections.Generic;using System.ComponentModel;using System.Text;using System.Net.Sockets;using System.IO;using UnityEngine.UI;using System.Net;using System.Threading;using System.Linq;public class KeHuDuan : MonoBehaviour{    [SerializeField]    private Image image0;    Socket socketClient = null;    Thread threadClient = null;    void Start()    {        IPAddress ip = IPAddress.Parse("127.0.0.1");        IPEndPoint endPoint = new IPEndPoint(ip, 8080);        socketClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);        try        {            Debug.Log("与服务器连接中......");            socketClient.Connect(endPoint);        }        catch(SocketException e)        {            Debug.Log(e.Message);            return;        }        Debug.Log("与服务器连接成功！");        threadClient = new Thread(RecMsg);        threadClient.IsBackground = true;        threadClient.Start();    }    byte[] buff = null;    private bool chuan = false;    void Update()    {        if (chuan)        {            Texture2D texture = new Texture2D(100, 100);            texture.LoadImage(buff);            Sprite spr = null;            spr = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f));            image0.sprite = spr;            Debug.Log(buff.Length);            chuan = false;        }    }    void RecMsg()    {        while (true)        {            byte[] arrMsg = new byte[1024 * 1024 * 2];            int length = -1;            try            {                length = socketClient.Receive(arrMsg);//接收到数据，并返回长度            }            catch (SocketException e)            {                Debug.Log(e.Message);                return;            }            if (arrMsg[0] == 0)//表示接收到的是消息数据            {                string strMsg = System.Text.Encoding.Default.GetString(arrMsg, 1, length - 1);//                Debug.Log("从服务端接收到的数据：" + strMsg);            }            if (arrMsg[0] == 1) //表示接收到的是文件数据            {                try                {                                        buff = new byte[length -1];                    Buffer.BlockCopy(arrMsg, 1, buff, 0, length - 1);                    chuan = true;                }                catch (Exception e)                {                    Debug.Log(e.Message);                }            }        }    }    void OnApplicationQuit()    {        socketClient.Close();    }}