C#WIFI搜索与连接
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1、功能搜索WIFI并连接
2、所用工具及资源：VS2012 Managed Wifi API（即：引用ManagedWifi.dll文件地址：http://files.cnblogs.com/files/ywf520/ManagedWifi.zip）
3、运行截图及工程截图：
工程目录 结构
4、具体代码实现
wifiSo.cs
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using NativeWifi; namespace WifiConnect{ class wifiSo { private WIFISSID ssid; //wifi ssid private string key; //wifi密码 public List<WIFISSID> ssids = new List<WIFISSID>(); public wifiSo() { ssids.Clear(); } public wifiSo(WIFISSID ssid, string key) { ssids.Clear(); this.ssid = ssid; this.key = key; } //寻找当前连接的网络： public static string GetCurrentConnection() { WlanClient client = new WlanClient(); foreach (WlanClient.WlanInterface wlanIface in client.Interfaces) { Wlan.WlanAvailableNetwork[] networks = wlanIface.GetAvailableNetworkList(0); foreach (Wlan.WlanAvailableNetwork network in networks) { if (wlanIface.InterfaceState == Wlan.WlanInterfaceState.Connected && wlanIface.CurrentConnection.isState == Wlan.WlanInterfaceState.Connected) { return wlanIface.CurrentConnection.profileName; } } } return string.Empty; } static string GetStringForSSID(Wlan.Dot11Ssid ssid) { return Encoding.UTF8.GetString(ssid.SSID, 0, (int)ssid.SSIDLength); } /// <summary> /// 枚举所有无线设备接收到的SSID /// </summary> public void ScanSSID() { WlanClient client = new WlanClient(); foreach (WlanClient.WlanInterface wlanIface in client.Interfaces) { // Lists all networks with WEP security Wlan.WlanAvailableNetwork[] networks = wlanIface.GetAvailableNetworkList(0); foreach (Wlan.WlanAvailableNetwork network in networks) { WIFISSID targetSSID = new WIFISSID(); targetSSID.wlanInterface = wlanIface; targetSSID.wlanSignalQuality = (int)network.wlanSignalQuality; targetSSID.SSID = GetStringForSSID(network.dot11Ssid); //targetSSID.SSID = Encoding.Default.GetString(network.dot11Ssid.SSID, 0, (int)network.dot11Ssid.SSIDLength); targetSSID.dot11DefaultAuthAlgorithm = network.dot11DefaultAuthAlgorithm.ToString(); targetSSID.dot11DefaultCipherAlgorithm = network.dot11DefaultCipherAlgorithm.ToString(); ssids.Add(targetSSID); } } } // 字符串转Hex public static string StringToHex(string str) { StringBuilder sb = new StringBuilder(); byte[] byStr = System.Text.Encoding.Default.GetBytes(str); //默认是System.Text.Encoding.Default.GetBytes(str) for (int i = 0; i < byStr.Length; i++) { sb.Append(Convert.ToString(byStr[i], 16)); } return (sb.ToString().ToUpper()); } // 连接到无线网络 public void ConnectToSSID() { try { String auth = string.Empty; String cipher = string.Empty; bool isNoKey = false; String keytype = string.Empty; //Console.WriteLine("》》》《《" + ssid.dot11DefaultAuthAlgorithm + "》》对比《《" + "Wlan.Dot11AuthAlgorithm.RSNA_PSK》》"); switch (ssid.dot11DefaultAuthAlgorithm) { case "IEEE80211_Open": auth = "open"; break; case "RSNA": auth = "WPA2PSK"; break; case "RSNA_PSK": //Console.WriteLine("电子设计wifi：》》》"); auth = "WPA2PSK"; break; case "WPA": auth = "WPAPSK"; break; case "WPA_None": auth = "WPAPSK"; break; case "WPA_PSK": auth = "WPAPSK"; break; } switch (ssid.dot11DefaultCipherAlgorithm) { case "CCMP": cipher = "AES"; keytype = "passPhrase"; break; case "TKIP": cipher = "TKIP"; keytype = "passPhrase"; break; case "None": cipher = "none"; keytype = ""; isNoKey = true; break; case "WWEP": cipher = "WEP"; keytype = "networkKey"; break; case "WEP40": cipher = "WEP"; keytype = "networkKey"; break; case "WEP104": cipher = "WEP"; keytype = "networkKey"; break; } if (isNoKey && !string.IsNullOrEmpty(key)) { Console.WriteLine(">>>>>>>>>>>>>>>>>无法连接网络！"); return; } else if (!isNoKey && string.IsNullOrEmpty(key)) { Console.WriteLine("无法连接网络！"); return; } else { //string profileName = ssid.profileNames; // this is also the SSID string profileName = ssid.SSID; string mac = StringToHex(profileName); string profileXml = string.Empty; if (!string.IsNullOrEmpty(key)) { profileXml = string.Format("<?xml version=\"1.0\"?><WLANProfile xmlns=\"http://www.microsoft.com/networking/WLAN/profile/v1\"><name>{0}</name><SSIDConfig><SSID><hex>{1}</hex><name>{0}</name></SSID></SSIDConfig><connectionType>ESS</connectionType><connectionMode>auto</connectionMode><autoSwitch>false</autoSwitch><MSM><security><authEncryption><authentication>{2}</authentication><encryption>{3}</encryption><useOneX>false</useOneX></authEncryption><sharedKey><keyType>{4}</keyType><protected>false</protected><keyMaterial>{5}</keyMaterial></sharedKey><keyIndex>0</keyIndex></security></MSM></WLANProfile>", profileName, mac, auth, cipher, keytype, key); } else { profileXml = string.Format("<?xml version=\"1.0\"?><WLANProfile xmlns=\"http://www.microsoft.com/networking/WLAN/profile/v1\"><name>{0}</name><SSIDConfig><SSID><hex>{1}</hex><name>{0}</name></SSID></SSIDConfig><connectionType>ESS</connectionType><connectionMode>auto</connectionMode><autoSwitch>false</autoSwitch><MSM><security><authEncryption><authentication>{2}</authentication><encryption>{3}</encryption><useOneX>false</useOneX></authEncryption></security></MSM></WLANProfile>", profileName, mac, auth, cipher, keytype); } ssid.wlanInterface.SetProfile(Wlan.WlanProfileFlags.AllUser, profileXml, true); bool success = ssid.wlanInterface.ConnectSynchronously(Wlan.WlanConnectionMode.Profile, Wlan.Dot11BssType.Any, profileName, 15000); if (!success) { Console.WriteLine("连接网络失败！"); return; } } } catch (Exception e) { Console.WriteLine("连接网络失败！"); return; } } //当连接的连接状态进行通知 面是简单的通知事件的实现，根据通知的内容在界面上显示提示信息： private void WlanInterface_WlanConnectionNotification(Wlan.WlanNotificationData notifyData, Wlan.WlanConnectionNotificationData connNotifyData) { try { if (notifyData.notificationSource == Wlan.WlanNotificationSource.ACM) { int notificationCode = (int)notifyData.NotificationCode; switch (notificationCode) { case (int)Wlan.WlanNotificationCodeAcm.ConnectionStart: Console.WriteLine("开始连接无线网络......."); break; case (int)Wlan.WlanNotificationCodeAcm.ConnectionComplete: break; case (int)Wlan.WlanNotificationCodeAcm.Disconnecting: Console.WriteLine("正在断开无线网络连接......."); break; case (int)Wlan.WlanNotificationCodeAcm.Disconnected: Console.WriteLine("已经断开无线网络连接......."); break; } } //})); } catch (Exception e) { //Loger.WriteLog(e.Message); } } } class WIFISSID { public string SSID = "NONE"; public string dot11DefaultAuthAlgorithm = ""; public string dot11DefaultCipherAlgorithm = ""; public bool networkConnectable = true; public string wlanNotConnectableReason = ""; public int wlanSignalQuality = 0; public WlanClient.WlanInterface wlanInterface = null; }}
Form1.cs
using 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 NativeWifi;using System.Threading;namespace WifiConnect{ public partial class wifi : Form { private List<WIFISSID> ssids; private wifiSo wifiso; public wifi() { InitializeComponent(); } private void wifi_Load(object sender, EventArgs e) { wifiso = new wifiSo(); //加载wifi ssids = wifiso.ssids; wifiso.ScanSSID(); //显示所有wifi } private void connectWIFI() { } private void button1_Click(object sender, EventArgs e) { this.wifiListOK.Items.Clear(); //只移除所有的项。 //wifiListOK.Clear();//清除listview中的数据 SetwifiList(); ScanSSID(); } //设置listviewok private void SetwifiList() { this.wifiListOK.Columns.Add("wifi名称", 160, HorizontalAlignment.Left); //一步添加 this.wifiListOK.Columns.Add("wifiSSID", 120, HorizontalAlignment.Left); //一步添加 this.wifiListOK.Columns.Add("加密方式", 100, HorizontalAlignment.Left); //一步添加 this.wifiListOK.Columns.Add("信号强度", 88, HorizontalAlignment.Left); //一步添加 //ColumnHeader ch = new ColumnHeader(); //先创建列表头 wifiListOK.GridLines = true;//显示网格 wifiListOK.Scrollable = true;//显示所有项时是否显示滚动条 wifiListOK.AllowColumnReorder = true; wifiListOK.FullRowSelect = true; wifiListOK.CheckBoxes = true; } //添加数据 private void wifiListOKADDitem(String wifiname, String pass,String dot11DefaultAuthAlgorithm,int i) { this.wifiListOK.BeginUpdate(); //数据更新，UI暂时挂起，直到EndUpdate绘制控件，可以有效避免闪烁并大大提高加载速度 //this.wifiListOK.Items.Add(wifiname,0); ListViewItem wifiitem = wifiListOK.Items.Add(wifiname); wifiitem.SubItems.Add(pass); wifiitem.SubItems.Add(dot11DefaultAuthAlgorithm); wifiitem.SubItems.Add(i+""); this.wifiListOK.EndUpdate(); //结束数据处理，UI界面一次性绘制。 this.wifiListOK.View = System.Windows.Forms.View.Details; } //单击事件 private void wifiListOK_SelectedIndexChanged(object sender, EventArgs e) { if (wifiListOK.SelectedIndices != null && wifiListOK.SelectedItems.Count > 0) { ListView.SelectedIndexCollection c = wifiListOK.SelectedIndices; MessageBoxButtons messButton = MessageBoxButtons.OKCancel; DialogResult dr = MessageBox.Show("确定要连接" + wifiListOK.Items[c[0]].Text + "吗?", "wifi连接", messButton); if (dr == DialogResult.OK)//如果点击“确定”按钮 { // Console.WriteLine("<<<<<<<<<<<<<<<<flags:{0}.>>>>>>>>>>>>>>>>>>>>>>>", ssid); //wifiso.ConnectToSSID(targetSSID, "ZMZGZS520");//连接wifi } } } static string GetStringForSSID(Wlan.Dot11Ssid ssid) { return Encoding.UTF8.GetString(ssid.SSID, 0, (int)ssid.SSIDLength); } //显示所有wifi public void ScanSSID() { WlanClient client = new WlanClient(); foreach (WlanClient.WlanInterface wlanIface in client.Interfaces) { // Lists all networks with WEP security Wlan.WlanAvailableNetwork[] networks = wlanIface.GetAvailableNetworkList(0); foreach (Wlan.WlanAvailableNetwork network in networks) { WIFISSID targetSSID = new WIFISSID(); targetSSID.wlanInterface = wlanIface; targetSSID.wlanSignalQuality = (int)network.wlanSignalQuality; targetSSID.SSID = GetStringForSSID(network.dot11Ssid); //targetSSID.SSID = Encoding.Default.GetString(network.dot11Ssid.SSID, 0, (int)network.dot11Ssid.SSIDLength); targetSSID.dot11DefaultAuthAlgorithm = network.dot11DefaultAuthAlgorithm.ToString(); targetSSID.dot11DefaultCipherAlgorithm = network.dot11DefaultCipherAlgorithm.ToString(); ssids.Add(targetSSID); wifiListOKADDitem(GetStringForSSID(network.dot11Ssid), network.dot11DefaultCipherAlgorithm.ToString(), network.dot11DefaultAuthAlgorithm.ToString(),(int)network.wlanSignalQuality); if (GetStringForSSID(network.dot11Ssid).Equals("DZSJ1")) { var obj = new wifiSo(targetSSID, "ZMZGZS520"); Thread wificonnect = new Thread(obj.ConnectToSSID); wificonnect.Start(); //wifiso.ConnectToSSID(targetSSID, "ZMZGZS520");//连接wifi connectWifiOK.Text = GetStringForSSID(network.dot11Ssid); Image img = new Bitmap(Environment.CurrentDirectory+"/image/wifi.png");//这里是你要替换的图片。当然你必须事先初始化出来图 pictureBoxW.BackgroundImage = img; //Console.WriteLine(">>>>>>>>>>>>>>>>>开始连接网络！" + targetSSID.SSID + GetStringForSSID(network.dot11Ssid) + GetStringForSSID(network.dot11Ssid).Equals("DZSJ1")); } } } } /// <summary> /// 关闭wifi /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void closeWIFI_Click(object sender, EventArgs e) { if (connectWifiOK.Text.Equals("无") || connectWifiOK.Text.Equals(null)) { MessageBox.Show("当前无连接wifi"); } else { } } //更新数据 private void getwifidatabtn_Click(object sender, EventArgs e) { WifiSocket wifiscoket = new WifiSocket(); wifiscoket.fuwu(); wifiscoket.kehuduan(); } }}
5、到此就结束了，写的不对的地方希望大家多多指教，更多功能还希望小伙伴们继续研究。
6、鸣谢：感谢各位广大博友无私的分享精神！
7、参考：http://blog.csdn.net/m593192219/article/details/9363355
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