java 获取wifi加密类型的代码

以下是获取WiFi加密类型的Java代码示例：

import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;

public class WifiUtils {
    private WifiManager wifiManager;

    public WifiUtils(WifiManager wifiManager) {
        this.wifiManager = wifiManager;
    }

    // 获取WiFi加密类型
    public String getWifiEncryptionType(ScanResult scanResult) {
        String encryptionType = "";

        // 获取WiFi的安全类型
        String capabilities = scanResult.capabilities;

        if (capabilities.contains("WPA") || capabilities.contains("WPA2")) {
            encryptionType = "WPA/WPA2";
        } else if (capabilities.contains("WEP")) {
            encryptionType = "WEP";
        } else {
            encryptionType = "无密码";
        }

        return encryptionType;
    }

    // 连接WiFi
    public boolean connectWifi(String ssid, String password, String encryptionType) {
        // 配置WiFi信息
        WifiConfiguration wifiConfig = new WifiConfiguration();
        wifiConfig.SSID = "\"" + ssid + "\"";

        if (encryptionType.equals("WPA/WPA2")) {
            wifiConfig.preSharedKey = "\"" + password + "\"";
            wifiConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
        } else if (encryptionType.equals("WEP")) {
            wifiConfig.wepKeys[0] = "\"" + password + "\"";
            wifiConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
            wifiConfig.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
        } else {
            wifiConfig.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
        }

        // 连接WiFi
        int networkId = wifiManager.addNetwork(wifiConfig);
        boolean isConnected = wifiManager.enableNetwork(networkId, true);

        return isConnected;
    }
}

使用示例：

WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiUtils wifiUtils = new WifiUtils(wifiManager);

// 扫描WiFi列表
List<ScanResult> scanResults = wifiManager.getScanResults();
for (ScanResult scanResult : scanResults) {
    String ssid = scanResult.SSID;
    String encryptionType = wifiUtils.getWifiEncryptionType(scanResult);

    // 连接WiFi
    boolean isConnected = wifiUtils.connectWifi(ssid, "password", encryptionType);
}