C#WIFI搜索与连接

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 ssids = new List(); 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); } ///

/// 枚举所有无线设备接收到的SSID /// 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;="">) { 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('{0}{1}{0}ESSautofalse{2}{3}false{4}false{5}0', profileName, mac, auth, cipher, keytype, key); } else { profileXml = string.Format('{0}{1}{0}ESSautofalse{2}{3}false', 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; }}