常州网站制作费用,wordpress修改上传文件路径,在线网站代码生成,网络广告推广方式一广播技术应用
客户端发现与管理#xff1a;软件可以通过广播消息来发现网络中的客户端#xff0c;从而方便对客户端进行集中管理和监控。服务通知#xff1a;向所有客户端广播重要的通知、更新或警告信息#xff0c;确保客户端及时了解相关情况。资源共享与分配#xf…一广播技术应用
客户端发现与管理软件可以通过广播消息来发现网络中的客户端从而方便对客户端进行集中管理和监控。服务通知向所有客户端广播重要的通知、更新或警告信息确保客户端及时了解相关情况。资源共享与分配广播可用资源的信息使客户端能够了解并请求所需的资源。组通信在特定的组或网段内进行广播方便同一组内的客户端之间进行快速的信息交流和协同工作。故障检测与恢复当检测到系统故障或异常时广播相关信息以通知客户端采取相应的措施例如切换到备用服务器。软件部署与更新广播软件安装或更新的指令使得客户端能够及时获取并执行相应的操作
二、代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data;
using System.Net;
using System.Threading;
using System.Net.Sockets;
using System.IO;namespace 广播客户端
{public partial class Form1 : Form{private System.Windows.Forms.Label label1;private System.Windows.Forms.Button button1;private System.Windows.Forms.Button button2;EndPoint ep;string receiveData;/// summary/// 必需的设计器变量。/// /summaryprivate System.ComponentModel.Container components null;public Form1(){InitializeComponent();//AcceptMessage(),在未接收广播信息之前处于阻塞状态不会生成form//this.Show();AcceptMessage();}private void Form1_Load(object sender, EventArgs e){}/// summary/// 清理所有正在使用的资源。/// /summaryprotected override void Dispose(bool disposing){if (disposing){if (components ! null){components.Dispose();}}base.Dispose(disposing);}//接收信息private void AcceptMessage(){//d定义socket对象Socket socket new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);IPEndPoint iep new IPEndPoint(IPAddress.Any, 1207);socket.Bind(iep);ep (EndPoint)iep;byte[] bytes new byte[1024];while (true){socket.ReceiveFrom(bytes, ref ep);receiveData System.Text.Encoding.Unicode.GetString(bytes);receiveData receiveData.TrimEnd(\u0000);Thread th new Thread(new ThreadStart(Acc));th.Start();//th.Abort();}socket.Close();}private void Acc(){string message 来自 ep.ToString() 的消息;//DialogResult result MessageBox.Show(receiveData, message, MessageBoxButtons.AbortRetryIgnore);string ip ep.ToString();int pos ip.IndexOf(:);string ip_add ip.Substring(0, pos);OpenReadWithHttps(http:// ip_add :2324/cyberwinsvr?client GetLocalIP(), , GB2312);}/// summary/// 获取计算IP/// /summary/// returns/returns/// public static string GetLocalIP(){try{string HostName Dns.GetHostName(); //得到主机名IPHostEntry IpEntry Dns.GetHostEntry(HostName);for (int i 0; i IpEntry.AddressList.Length; i){//从IP地址列表中筛选出IPv4类型的IP地址//AddressFamily.InterNetwork表示此IP为IPv4,//AddressFamily.InterNetworkV6表示此地址为IPv6类型if (IpEntry.AddressList[i].AddressFamily AddressFamily.InterNetwork){return IpEntry.AddressList[i].ToString();}}return ;}catch (Exception ex){// MessageBox.Show(获取本机IP出错: ex.Message);return ;}}///summary///采用https协议访问网络////summary///param nameURLurl地址/param///param namestrPostdata发送的数据/param///returns/returnsprivate static string OpenReadWithHttps(string URL, string strPostdata, string strEncoding){try{Encoding encoding Encoding.Default;HttpWebRequest request (HttpWebRequest)WebRequest.Create(URL);request.Method post;request.Accept text/html, application/xhtmlxml, */*;request.ContentType application/x-www-form-urlencoded;byte[] buffer encoding.GetBytes(strPostdata);request.ContentLength buffer.Length;request.GetRequestStream().Write(buffer, 0, buffer.Length);HttpWebResponse response (HttpWebResponse)request.GetResponse();using (StreamReader reader new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding(strEncoding))){return reader.ReadToEnd();}}catch (Exception ex){return cyber_empty;}}#region Windows 窗体设计器生成的代码/// summary/// 设计器支持所需的方法 - 不要使用代码编辑器修改/// 此方法的内容。/// /summaryprivate void InitializeComponent(){this.label1 new System.Windows.Forms.Label();this.button1 new System.Windows.Forms.Button();this.button2 new System.Windows.Forms.Button();this.SuspendLayout();// // label1// this.label1.BackColor System.Drawing.Color.FromArgb(((int)(((byte)(255)))), ((int)(((byte)(255)))), ((int)(((byte)(192)))));this.label1.ForeColor System.Drawing.Color.Black;this.label1.Location new System.Drawing.Point(0, 8);this.label1.Name label1;this.label1.Size new System.Drawing.Size(424, 23);this.label1.TabIndex 0;this.label1.Text 您已经选择了不再接收广播信息请确认;// // button1// this.button1.BackColor System.Drawing.Color.Red;this.button1.Location new System.Drawing.Point(80, 88);this.button1.Name button1;this.button1.Size new System.Drawing.Size(75, 23);this.button1.TabIndex 1;this.button1.Text 继续接收;this.button1.UseVisualStyleBackColor false;this.button1.Click new System.EventHandler(this.button1_Click);// // button2// this.button2.BackColor System.Drawing.Color.Red;this.button2.Location new System.Drawing.Point(240, 88);this.button2.Name button2;this.button2.Size new System.Drawing.Size(75, 23);this.button2.TabIndex 2;this.button2.Text 退出系统;this.button2.UseVisualStyleBackColor false;this.button2.Click new System.EventHandler(this.button2_Click);// // Form1// this.AutoScaleBaseSize new System.Drawing.Size(6, 14);this.BackColor System.Drawing.Color.Blue;this.ClientSize new System.Drawing.Size(424, 125);this.Controls.Add(this.button2);this.Controls.Add(this.button1);this.Controls.Add(this.label1);this.FormBorderStyle System.Windows.Forms.FormBorderStyle.FixedDialog;this.MaximizeBox false;this.MinimizeBox false;this.Name Form1;this.Text 提示;this.ResumeLayout(false);}#endregionprivate void button1_Click(object sender, EventArgs e){}private void button2_Click(object sender, EventArgs e){}}
}
三、技术支持
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