| 提交 | 用户 | 时间 | ||
| e46d3b | 1 | using System.Collections; |
| 懒 | 2 | using System.Collections.Generic; |
| 3 | using System.Net; | |
| 4 | using System.Net.Sockets; | |
| 5 | using System; | |
| 6 | using System.Text; | |
| 7 | ||
| 8 | namespace YX | |
| 9 | { | |
| 10 | //规范命名、添加注释、合理封装、限制访问权限 | |
| 11 | public class AsyncTcpClient | |
| 12 | { | |
| 13 | private string ip1; | |
| 14 | private int port1; | |
| 15 | byte[] ReadBytes = new byte[1024]; | |
| 16 | //单例 | |
| 17 | TcpClient tcpClient; | |
| 18 | //连接服务器 | |
| 19 | public void ConnectServer(string ip, int port) | |
| 20 | { | |
| 21 | //防止多个事例去重复连接 | |
| 22 | if (isTryingToCon == true) | |
| 23 | { | |
| 24 | return; | |
| 25 | } | |
| 26 | ip1 = ip; | |
| 27 | port1 = port; | |
| 28 | try | |
| 29 | { | |
| 30 | if (tcpClient != null) | |
| 31 | { | |
| 32 | tcpClient.Close(); | |
| 33 | } | |
| 34 | tcpClient = new TcpClient(); | |
| 35 | isTryingToCon = true; | |
| 36 | //开始异步 | |
| 37 | tcpClient.BeginConnect(IPAddress.Parse(ip), port, Lianjie, null); | |
| 38 | } | |
| 39 | catch (Exception e) | |
| 40 | { | |
| 41 | } | |
| 42 | } | |
| 43 | private bool isTryingToCon = false; | |
| 44 | //连接判断 | |
| 45 | void Lianjie(IAsyncResult ar) | |
| 46 | { | |
| 47 | if (IsClose) | |
| 48 | { | |
| 49 | return; | |
| 50 | } | |
| 51 | if (tcpClient.Connected == false) | |
| 52 | { | |
| 53 | SetCon(0); | |
| 54 | tcpClient.Close(); | |
| 55 | tcpClient = new System.Net.Sockets.TcpClient(); | |
| 56 | //尝试重连。。。。。。; | |
| 57 | tcpClient.BeginConnect(IPAddress.Parse(ip1), port1, Lianjie, null); | |
| 58 | } | |
| 59 | else | |
| 60 | { | |
| 61 | //连接上了 | |
| 62 | isTryingToCon = false; | |
| 63 | //结束异步连接 | |
| 64 | tcpClient.EndConnect(ar); | |
| 65 | //读取数据 | |
| 66 | tcpClient.GetStream().BeginRead(ReadBytes, 0, ReadBytes.Length, ReceiveCallBack, null); | |
| 67 | SetCon(1); | |
| 68 | } | |
| 69 | } | |
| 70 | ||
| 71 | ||
| 72 | //接收消息 | |
| 73 | void ReceiveCallBack(IAsyncResult ar) | |
| 74 | { | |
| 75 | try | |
| 76 | { | |
| 77 | int len = tcpClient.GetStream().EndRead(ar);//结束异步读取 | |
| 78 | if (len > 0) | |
| 79 | { | |
| 80 | MyEventArgs e = new MyEventArgs(ip1, ReadBytes); | |
| 81 | _MsgChange(e); | |
| 82 | //重置数据,防止旧数据残留 | |
| 83 | ReadBytes = new byte[1024]; | |
| 84 | tcpClient.GetStream().BeginRead(ReadBytes, 0, ReadBytes.Length, ReceiveCallBack, null); | |
| 85 | } | |
| 86 | else | |
| 87 | { | |
| 88 | //尝试重连。。。。。。" | |
| 89 | ConnectServer(ip1, port1); | |
| 90 | } | |
| 91 | } | |
| 92 | catch (Exception e) | |
| 93 | { | |
| 94 | } | |
| 95 | } | |
| 96 | ||
| 97 | //发送消息 | |
| 98 | public bool SendMsg(string msg) | |
| 99 | { | |
| 100 | try | |
| 101 | { | |
| 102 | //开始异步发送 | |
| 103 | byte[] msgBytes = Encoding.UTF8.GetBytes(msg); | |
| 104 | tcpClient.GetStream().BeginWrite(msgBytes, 0, msgBytes.Length, (ar) => | |
| 105 | { | |
| 106 | tcpClient.GetStream().EndWrite(ar);//结束异步发送 | |
| 107 | }, null); | |
| 108 | return true; | |
| 109 | } | |
| 110 | catch (Exception ex) | |
| 111 | { | |
| 112 | // int a = ex.NativeErrorCode; | |
| 113 | //尝试重连。。。。。。" | |
| 114 | ConnectServer(ip1, port1); | |
| 115 | return false; | |
| 116 | } | |
| 117 | } | |
| 118 | public bool SendMsg(byte[] msg) | |
| 119 | { | |
| 120 | try | |
| 121 | { | |
| 122 | //开始异步发送 | |
| 123 | tcpClient.GetStream().BeginWrite(msg, 0, msg.Length, (ar) => | |
| 124 | { | |
| 125 | tcpClient.GetStream().EndWrite(ar);//结束异步发送 | |
| 126 | }, null); | |
| 127 | return true; | |
| 128 | } | |
| 129 | catch (Exception ex) | |
| 130 | { | |
| 131 | //尝试重连。。。。。。" | |
| 132 | ConnectServer(ip1, port1); | |
| 133 | return false; | |
| 134 | } | |
| 135 | } | |
| 136 | bool IsClose = false; | |
| 137 | /// <summary> | |
| 138 | /// 断开连接 | |
| 139 | /// </summary> | |
| 140 | public void Close() | |
| 141 | { | |
| 142 | IsClose = true; | |
| 143 | if (tcpClient != null && tcpClient.Client.Connected) | |
| 144 | { | |
| 145 | tcpClient.Close(); | |
| 146 | } | |
| 147 | if (!tcpClient.Client.Connected) | |
| 148 | { | |
| 149 | tcpClient.Close();//断开挂起的异步连接 | |
| 150 | } | |
| 151 | } | |
| 152 | int isConnected = -1; | |
| 153 | /// <summary> | |
| 154 | /// -1 初始化 0 未连接 1 连接 | |
| 155 | /// </summary> | |
| 156 | /// <param name="_con"></param> | |
| 157 | private void SetCon(int _con) | |
| 158 | { | |
| 159 | if (isConnected != _con) | |
| 160 | { | |
| 161 | bool rel = false; | |
| 162 | if (_con == 1) | |
| 163 | { | |
| 164 | rel = true; | |
| 165 | } | |
| 166 | isConnected = _con; | |
| 167 | MyEventArgs e = new MyEventArgs(ip1, rel); | |
| 168 | _ConChange(e); | |
| 169 | } | |
| 170 | } | |
| 171 | ||
| 172 | ||
| 173 | public class MyEventArgs : EventArgs | |
| 174 | { | |
| 175 | public string IP; | |
| 176 | public bool IsConnetct; | |
| 177 | public byte[] Msg; | |
| 178 | public MyEventArgs(string iP, byte[] msg) | |
| 179 | { | |
| 180 | IP = iP; | |
| 181 | Msg = msg; | |
| 182 | } | |
| 183 | public MyEventArgs(string iP, bool iscon) | |
| 184 | { | |
| 185 | IP = iP; | |
| 186 | IsConnetct = iscon; | |
| 187 | } | |
| 188 | } | |
| 189 | //连接状态 | |
| 190 | public delegate void ConChange(object sender, MyEventArgs args); | |
| 191 | public event ConChange OnConChange; | |
| 192 | protected virtual void _ConChange(MyEventArgs e) | |
| 193 | { | |
| 194 | if (OnConChange != null) | |
| 195 | { | |
| 196 | OnConChange(this, e); | |
| 197 | } | |
| 198 | } | |
| 199 | //收到的消息 | |
| 200 | public delegate void MsgChange(object sender, MyEventArgs args); | |
| 201 | public event MsgChange OnMsgChange; | |
| 202 | protected virtual void _MsgChange(MyEventArgs e) | |
| 203 | { | |
| 204 | if (OnMsgChange != null) | |
| 205 | { | |
| 206 | OnMsgChange(this, e); | |
| 207 | } | |
| 208 | } | |
| 209 | } | |
| 210 | } | |
| 211 | ||
| 212 | ||
| 213 | //调用方法 | |
| 214 | ||
| 215 | //AsyncTcpClient sw = new AsyncTcpClient(); | |
| 216 | //private void Form1_Load(object sender, EventArgs e) | |
| 217 | //{ | |
| 218 | // sw.ConnectServer("192.168.1.19", 8000); | |
| 219 | // sw.OnConChange += Sw_OnConChange; | |
| 220 | // sw.OnMsgChange += Sw_OnMsgChange; | |
| 221 | //} | |
| 222 | ||
| 223 | //private void Sw_OnMsgChange(object sender, AsyncTcpClient.MyEventArgs args) | |
| 224 | //{ | |
| 225 | // string str = Encoding.UTF8.GetString(args.Msg, 0, args.Msg.Length); | |
| 226 | // str = Uri.UnescapeDataString(str); | |
| 227 | // Invoke(new MethodInvoker(delegate () | |
| 228 | // { | |
| 229 | // label2.Text = args.IP + "___" + str; | |
| 230 | // })); | |
| 231 | //} | |
| 232 | ||
| 233 | //private void Sw_OnConChange(object sender, AsyncTcpClient.MyEventArgs args) | |
| 234 | //{ | |
| 235 | // Invoke(new MethodInvoker(delegate () | |
| 236 | // { | |
| 237 | // label1.Text = args.IP + "___" + args.IsConnetct.ToString(); | |
| 238 | // })); | |
| 239 | //} | |
| 240 | ||
| 241 | //private void button1_Click(object sender, EventArgs e) | |
| 242 | //{ | |
| 243 | // bool rel = sw.SendMsg("asdf"); | |
| 244 | // button1.Text = rel.ToString(); | |
| 245 | //} | |
| 246 | ||
| 247 | //private void Form1_FormClosing(object sender, FormClosingEventArgs e) | |
| 248 | //{ | |
| 249 | // sw.OnConChange -= Sw_OnConChange; | |
| 250 | // sw.OnMsgChange -= Sw_OnMsgChange; | |
| 251 | // sw.Close(); | |
| 252 | //} | |
