用于支付网关重定向的 Android webview 不起作用

Question

我正在 webview 中加载一个 URL，该 URL 将重定向到支付网关屏幕。我的网址是：

 https://**hostname**/pgway/gateway/payment/paymentDebitwithPin.jsp?PaymentID=8501798561070830&trandata=b0cb7bcf4cb2f52b355fa4eb3f66905721323d2dfbbb00682dafe34bfca9948a&id=10100125

当加载这个 url 时，它会被重定向到下面的 url

https://**hostname**/pgway/gateway/payment/TransactionError.jsp

我用来加载这个网址的代码是

    pgWebview = (WebView)findViewById(R.id.pgWebview);
    pgWebview.getSettings().setUseWideViewPort(true);
    pgWebview.getSettings().setLoadWithOverviewMode(true);
    pgWebview.setWebViewClient(
            new SSLTolerentWebViewClient()
    );
    pgWebview.loadUrl(webURL);

重定向的屏幕将消息显示为

Unauthorized Transaction. Your request cannot be process as the transaction is already initiated.

我也尝试过 shouldOverrideUrlLoading 方法，但无论我得到相同的错误。谁能帮我解决这个问题？

Answer 1

当您通过扩展 calss 在 webview 中设置 webclient 时，此解决方案适用于我：WebViewClient()

 override fun shouldOverrideUrlLoading(view: WebView, url: String): Boolean {
    Log.d(TAG, "shouldOverrideUrlLoading")
    Log.d(TAG, "actualURL: $url")
    Log.d(TAG, "NewURL: $url")
    val parsedUrl = URL(url)

    val hitTestResult = view.hitTestResult
    //hitTestResult==null solve the redirect problem
    if (!TextUtils.isEmpty(url) && hitTestResult == null) {
        view.loadUrl(url)
        return true
    }
    //your handling logic here 
}

Answer 2

更好的方法可能是检查 onPageFinished()

中的重定向 URL

代码

@Override
        public void onPageFinished(WebView view, String url) {
            Log.d("Final URL", url);
        }

Answer 3

通过这种方式检查你会知道加载url时发生的事情，移动浏览器中是否发生了url重定向？

webView.loadUrl(actualURL);

public class AppWebViewClients extends WebViewClient {

    public boolean shouldOverrideUrlLoading(WebView view, String url) {

        Log.d(TAG, "shouldOverrideUrlLoading");
        Log.d(TAG, "actualURL: " + actualURL);
        Log.d(TAG, "NewURL: " + url);

        if (changedUrl && !url.equals(actualURL)) {
            // page has been clicked
            //TODO- load the page after redirection happens
              view.loadUrl(url);

            return true;
        } else {
            // Designate Urls that you want to load in WebView still.
            view.loadUrl(url);

            return true;
        }
    }

    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
        super.onPageStarted(view, url, favicon);
        //SHOW LOADING IF IT ISNT ALREADY VISIBLE
        Log.d(TAG, "onPageStarted");
    }

    public void onPageFinished(WebView view, String url) {

    }

    public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {

        Log.d(TAG, "Error Description: " + description);
        Log.d(TAG, "failingUrl: " + failingUrl);
    }

    @Override
    public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) {
        try{
            final AlertDialog.Builder builder = new AlertDialog.Builder(WebViewActivity.this);
            builder.setMessage(R.string.notification_error_ssl_cert_invalid);
            builder.setPositiveButton("continue", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    handler.proceed();
                }
            });
            builder.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    handler.cancel();
                }
            });
            final AlertDialog dialog = builder.create();
            dialog.show();
        }catch (Exception e){
            e.printStackTrace();
        }
    }
}

Answer 4

您需要为其启用 javascript。在加载 url 之前添加这些行：-

pgWebview.getSettings().setJavaScriptEnabled(true);
pgWebview.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);