在 Android 10 上使用 WifiNetworkSpecifier 切换接入点后出现 java.net.ConnectException [英] java.net.ConnectException after switching accesspoint using WifiNetworkSpecifier on Android 10

问题描述

使用 WifiNetworkSpecifier 配置 wifi 接入点后无法建立连接，以下是跟踪

Unable to make connection after configuring wifi accespoint using WifiNetworkSpecifier, Below is the trace

Caused by: java.net.ConnectException: failed to connect to/10.123.45.1 (port 443) from/:: (port 0) after 120000ms: connect failed: ENETUNREACH (Network is unreachable)在 libcore.io.IoBridge.connect(IoBridge.java:143)在 java.net.PlainSocketImpl.socketConnect(PlainSocketImpl.java:142)在 java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:390)在 java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:230)在 java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:212)在 java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436)在 java.net.Socket.connect(Socket.java:621)在 okhttp3.internal.platform.AndroidPlatform.connectSocket(AndroidPlatform.kt:58)在 okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.kt:268)……还有 21 个引起:android.system.ErrnoException:连接失败:ENETUNREACH(网络无法访问)在 libcore.io.Linux.connect(本机方法)在 libcore.io.ForwardingOs.connect(ForwardingOs.java:95)在 libcore.io.BlockGuardOs.connect(BlockGuardOs.java:136)在 libcore.io.ForwardingOs.connect(ForwardingOs.java:95)在 libcore.io.IoBridge.connectErrno(IoBridge.java:174)在 libcore.io.IoBridge.connect(IoBridge.java:135)... 29个

在使用 wifiManager 连接我的 IOT 设备时.我开始收到针对 Android 10 的 App sdk 连接错误.最初，我开始使用 WifiNetworkSpecifier 连接到 SSID，如下所示，

While using the wifiManager to connect my IOT device. I started receiving a connection error for App sdk targeting to Android 10. Initially, I started connect to SSID using WifiNetworkSpecifier as below,

val specifier = WifiNetworkSpecifier.Builder()
            .setSsid(ssid)
            .build()
val request = NetworkRequest.Builder()
            .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
            .addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED)
            .addCapability(NetworkCapabilities.NET_CAPABILITY_TRUSTED)
            .setNetworkSpecifier(specifier)
            .build()

    connManager.requestNetwork(request, object : ConnectivityManager.NetworkCallback() {

    override fun onAvailable(network: Network?) {
         startLocalConnection(network)
    }

    override fun onUnavailable() {
        // do failure processing here..
    }

})

在 onAvailable() 回调中连接到 SSID 后，使用如下所示的自签名证书与我的本地 IOT 设备 http 服务器建立 okhttp 连接，

after connection to the SSID in onAvailable() callback makes an okhttp connection to my local IOT device http server using self-signed certificate as below,

fun startLocalConnection(){
    val trusted = KeyStore.getInstance("BKS")
    val rawResource = context.resources.openRawResource(R.raw.device)
    trusted.load(rawResource, "password")
    val trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
    trustManagerFactory.init(trusted)
    val trustManager: X509TrustManager = trustManagerFactory.trustManagers
    val sslContext = SSLContext.getInstance("TLS")
    sslContext.init(null, trustManagers, null)
    val socketFactory: SSLSocketFactory = sslContext.socketFactory
    val trustManager: X509TrustManager = trustManagers[0] as X509TrustManager

    var okHttpClient: OkHttpClient = OkHttpClient.Builder()
            .connectionSpecs(listOf(ConnectionSpec.MODERN_TLS, ConnectionSpec.COMPATIBLE_TLS))
            .build()

    val request = Request.Builder()
            .url("https://192.168.40.23/device/json")
            .build()

    okHttpClient.newCall(request).enqueue(object : Callback {
        override fun onResponse(call: Call, response: Response) {
            // Success
        }

        override fun onFailure(call: Call, e: IOException) {
            // Causing java.net.ConnectException: Failed to connect to /192.168.40.23
        }
   }}

请帮助我追踪并解决问题.

Please help me to trace and fix the issue.

推荐答案

我现在遇到了同样的问题.

I had the same problem now.

在您的 onAvailable 回调中，您必须将您的网络与您的设备绑定:

In your onAvailable callback, you have to bind your network with your device with:

((ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE))
                .bindProcessToNetwork(network);

这篇关于在 Android 10 上使用 WifiNetworkSpecifier 切换接入点后出现 java.net.ConnectException的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！