证书颁发机构在android webview中不受信任，但在移动浏览器中工作正常。

adb shell pm install -r /sdcard/Download/certificate.crt

WebView webView = findViewById(R.id.webview);
webView.getSettings().setJavaScriptEnabled(true);

try {
    AssetManager assetManager = getAssets();
    InputStream inputStream = assetManager.open("certificate.crt");
    CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
    InputStream caInput = new BufferedInputStream(inputStream);
    Certificate ca;
    try {
        ca = certificateFactory.generateCertificate(caInput);
        System.out.println("ca=" + ((X509Certificate) ca).getSubjectDN());
    } finally {
        caInput.close();
    }

    String keyStoreType = KeyStore.getDefaultType();
    KeyStore keyStore = KeyStore.getInstance(keyStoreType);
    keyStore.load(null, null);
    keyStore.setCertificateEntry("ca", ca);

    String tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
    TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmfAlgorithm);
    tmf.init(keyStore);

    SSLContext sslContext = SSLContext.getInstance("TLS");
    sslContext.init(null, tmf.getTrustManagers(), null);

    webView.setWebViewClient(new WebViewClient() {
        @Override
        public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
            handler.proceed(); // Ignore SSL certificate errors
        }
    });

    webView.setWebChromeClient(new WebChromeClient());
    webView.setWebViewClient(new WebViewClient() {
        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
        }
    });

    webView.loadUrl("https://your-url.com");

} catch (Exception e) {
    e.printStackTrace();
}