C# 讀取網卡、設置網上、自動連接Wifi

項目需求：

1. 掃描所有可用wifi
2. 連接指定wifi，根據 ssid和 pwd連接
3. 設置網卡獲取IP的方式：靜態IP、DHCP

有了以上需求，分別對應寫了三個方法

掃描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);
                }
            }
        }

連接wifi

public void ConnectToSSID()
        {
            try
            {
                String auth = string.Empty;
                String cipher = string.Empty;
                bool isNoKey = false;
                String keytype = string.Empty;
                //Console.WriteLine("》》》《《" + ssid.dot11DefaultAuthAlgorithm + "》》對比《《" + "Wlan.Dot11AuthAlgorithm.RSNA_PSK》》");
                switch (ssid.dot11DefaultAuthAlgorithm)
                {
                    case "IEEE80211_Open":
                        auth = "open"; break;
                    case "RSNA":
                        auth = "WPA2PSK"; break;
                    case "RSNA_PSK":
                        //Console.WriteLine("電子設計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(">>>>>>>>>>>>>>>>>無法連接網絡！");
                    return;
                }
                else if (!isNoKey && string.IsNullOrEmpty(key))
                {
                    Console.WriteLine("無法連接網絡！");
                    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);

                    ssid.wlanInterface.WlanConnectionNotification += new WlanClient.WlanInterface.WlanConnectionNotificationEventHandler(WlanInterface_WlanConnectionNotification);
                    ssid.wlanInterface.WlanNotification += new WlanClient.WlanInterface.WlanNotificationEventHandler(wlanInterface_WlanNotification);
                    ssid.wlanInterface.WlanReasonNotification += new WlanClient.WlanInterface.WlanReasonNotificationEventHandler(wlanInterface_WlanReasonNotification);

                    bool success = ssid.wlanInterface.ConnectSynchronously(Wlan.WlanConnectionMode.Profile, Wlan.Dot11BssType.Any, profileName, 15000);
                    if (!success)
                    {
                        //Console.WriteLine("連接網絡失敗！");
                        return;
                    }

                }
            }
            catch (Exception e)
            {
                Console.WriteLine("連接網絡失敗！");
                return;
            }
        }

設置網卡IP

public void SetNetworkAdapter()
        {
            Console.WriteLine(">>>>>>>>>>>>>>>>Set stati ip ");
            ManagementBaseObject inPar = null;
            ManagementBaseObject outPar = null;
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                Console.WriteLine(mo);
                if (!(bool)mo["IPEnabled"])
                    continue;
                inPar = mo.GetMethodParameters("EnableStatic");
                inPar["IPAddress"] = new string[] { "172.27.15.140" };
                inPar["SubnetMask"] = new string[] { "255.255.255.0" };
                outPar = mo.InvokeMethod("EnableStatic", inPar, null);
                inPar = mo.GetMethodParameters("SetGateways");
                inPar["DefaultIPGateway"] = new string[] { "172.27.15.1" };
                outPar = mo.InvokeMethod("SetGateways", inPar, null);
                inPar = mo.GetMethodParameters("SetDNSServerSearchOrder");
                inPar["DNSServerSearchOrder"] = new string[] { "61.139.2.69", "114.114.114.114" };
                outPar = mo.InvokeMethod("SetDNSServerSearchOrder", inPar, null);
            }
        }

設置網卡DHCP

public void SetNetworkAdapter()
        {
            Console.WriteLine(">>>>>>>>>>>>>>>>Set dhcp ip ");
            ManagementBaseObject inPar = null;
            ManagementBaseObject outPar = null;
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();
            foreach (ManagementObject mo in moc)
            {
                Console.WriteLine(mo);
                if (!(bool)mo["IPEnabled"])
                    continue;

                    mo.InvokeMethod("SetDNSServerSearchOrder", null);
                    mo.InvokeMethod("EnableStatic", null);
                    mo.InvokeMethod("SetGateways", null);
                    mo.InvokeMethod("EnableDHCP", null);
            }
        }

本人寫了一個WinFrom DEMO 有興趣或者需要的朋友，可以自行下載
https://download.csdn.net/download/ybb350680013/12197515