目前有個需求是要實作雙向驗證，但是了好多方法都不行，請求android高手出手相救～

我目前有.p12檔案，而下面的.bks檔案是我用.p12檔轉成.cer，再用KeyStore Explorer轉成bks，請問這樣會有問題嗎？！

下面是我目前驗證的代碼

HttpsURLConnection httpsConn;
//setting
URL targetUrl = new URL("url");
httpsConn = (HttpsURLConnection) targetUrl.openConnection();

HostnameVerifier allHostVerifier = new HostnameVerifier() {
    @Override
    public boolean verify(String hostname, SSLSession session) {
        SLog.i("GC", "HostnameVerifier.verify:" + hostname);
        return true;
    }
};
httpsConn.setHostnameVerifier(allHostVerifier);

try {
    //服務器驗證客戶端證書
    KeyStore keyStore = KeyStore.getInstance("BKS");

    //讀取證書
    InputStream ksIn = Application.getContext().getResources().getAssets().open("certificate.bks");

    //加載證書
    keyStore.load(ksIn, "AAA".toCharArray());

    ksIn.close();
    KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance("X509");
    keyManagerFactory.init(keyStore, "AAA".toCharArray());


    //客戶端信任服務器證書
    KeyStore trustStore = KeyStore.getInstance("BKS");
    InputStream tsIn = Application.getContext().getResources().getAssets().open("certificate.bks");
    trustStore.load(tsIn, "AAA".toCharArray());
    tsIn.close();
    TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
    trustManagerFactory.init(trustStore);

    //初始化SSLContext
    SSLContext sslContext = SSLContext.getInstance("TLS");
    sslContext.init(keyManagerFactory.getKeyManagers(), trustManagerFactory.getTrustManagers(), null);

    httpsConn.setSSLSocketFactory(sslContext.getSocketFactory());

    connection(httpsConn, request);

下面是我執行後給我的錯誤訊息

W/System.err: javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
W/System.err:     at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:361)
W/System.err:     at com.android.okhttp.Connection.connectTls(Connection.java:235)
        at com.android.okhttp.Connection.connectSocket(Connection.java:199)
        at com.android.okhttp.Connection.connect(Connection.java:172)
        at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:367)
        at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:130)
        at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:329)
        at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:246)
        at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:457)
        at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:126)
        at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:257)
        at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getOutputStream(DelegatingHttpsURLConnection.java:218)