Android WebView未加载HTTPS URL

Question

public void onCreate(Bundle savedInstance)
{       
    super.onCreate(savedInstance);
    setContentView(R.layout.show_voucher);
    webView=(WebView)findViewById(R.id.webview);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.getSettings().setBuiltInZoomControls(true);
    String url ="https://www.paymeon.com/Vouchers/?v=%C80%8D%B1x%D9%CFqh%FA%84%C35%0A%1F%CE&iv=%25%EE%BEi%F4%DAT%E1"
    //webView.loadUrl(url); // Not Working... Showing blank
    webView.loadUrl("http://www.yahoo.com"); // its working    
}

当我尝试在WebBView中加载URL时,它只显示一个空白屏幕.如果我加载Google.com或yahoo.com,它运行正常.

Answer 1

请访问此链接:

将此覆盖方法添加到WebViewClient实现中.您需要使用Android SDK 2.2(API级别8)或更高版本进行编译.该方法在2.2(API级别8)的公共SDK中出现,但我们已经在运行2.1,1.6和1.5的设备上进行了测试,并且它也可以在这些设备上运行(显然行为一直存在).

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

这会对你有所帮助.

Answer 2

根据fargth的正确答案,以下是一个可能有用的小代码示例.

首先,创建一个扩展WebViewClient的类,并将其设置为忽略SSL错误:

// SSL Error Tolerant Web View Client
private class SSLTolerentWebViewClient extends WebViewClient {

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

}

然后使用Web视图对象(在OnCreate()方法中启动),将其Web视图客户端设置为覆盖类的实例:

 mWebView.setWebViewClient(
                new SSLTolerentWebViewClient()
        );

Answer 3

要根据新的安全策略正确处理SSL证书验证并避免Google拒绝应用程序,只要服务器提供的证书符合您的期望,就更改您的代码以调用SslErrorHandler.proceed(),否则调用SslErrorHandler.cancel().

例如,我添加了一个警告对话框,以便用户确认并且Google似乎不再显示警告.

    @Override
    public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) {
    final AlertDialog.Builder builder = new AlertDialog.Builder(this);
    String message = "SSL Certificate error.";
        switch (error.getPrimaryError()) {
            case SslError.SSL_UNTRUSTED:
                message = "The certificate authority is not trusted.";
                break;
            case SslError.SSL_EXPIRED:
                message = "The certificate has expired.";
                break;
            case SslError.SSL_IDMISMATCH:
                message = "The certificate Hostname mismatch.";
                break;
            case SslError.SSL_NOTYETVALID:
                message = "The certificate is not yet valid.";
                break;
        }
        message += " Do you want to continue anyway?";

        builder.setTitle("SSL Certificate Error");
        builder.setMessage(message);
    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();
}

更改后,它不会显示警告.

Answer 4

删除它将起作用的下面的代码

 super.onReceivedSslError(view, handler, error);

Answer 5

覆盖onReceivedSslError并删除

super.onReceivedSslError（视图，处理程序，错误）

并解决Google安全问题：

setDomStorageEnabled（true）;

完整的代码是：

webView.enableJavaScript();
webView.getSettings().setDomStorageEnabled(true); // Add this
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
webView.setWebViewClient(new WebViewClient(){
        @Override
        public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
            // DO NOT CALL SUPER METHOD
            super.onReceivedSslError(view, handler, error);
        }
    });

Answer 6

复制并粘贴您的代码行兄弟，它会工作相信我:) 我在想，您收到了 ssl 错误。?如果您使用覆盖 onReceivedSslError 方法并删除 super 它的 super 方法。只需编写 handler.proceed() ，错误就会解决。

    webView.setWebChromeClient(new WebChromeClient() {
        public void onProgressChanged(WebView view, int progress) {

            activity.setTitle("Loading...");
            activity.setProgress(progress * 100);

            if (progress == 100)
                activity.setTitle(getResources().getString(R.string.app_name));
        }
    });

    webView.setWebViewClient(new WebViewClient() {
        @Override
        public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
            Log.d("Failure Url :" , failingUrl);
        }

        @Override
        public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
            Log.d("Ssl Error:",handler.toString() + "error:" +  error);
            handler.proceed();
        }

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
    });
    webView.getSettings().setJavaScriptEnabled(true);
    webView.getSettings().setLoadWithOverviewMode(true);
    webView.getSettings().setUseWideViewPort(true);
    webView.getSettings().setDomStorageEnabled(true);
    webView.loadUrl(Constant.VIRTUALPOS_URL + "token=" + Preference.getInstance(getContext()).getToken() + "&dealer=" + Preference.getInstance(getContext()).getDealerCode());

Answer 7

我遵循了上面的答案，但似乎仍然对我不起作用，下面的代码在集成通常是 https 请求的支付网关时对我做了一个技巧：

public class MainActivity extends Activity {

    WebView webView;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        webView = (WebView) findViewById(R.id.webView1);
        WebSettings settings = webView.getSettings();
        settings.setJavaScriptEnabled(true);
        settings.setDomStorageEnabled(true);
        webView.setWebViewClient(new MyWebViewClient());
        String postData = "amount=1000&firstname=mtetno&email=mttee@gmail.com&phone=2145635784&productinfo=android&surl=success.php"
                + "&furl=failure.php&lastname=qwerty&curl=dsdsd.com&address1=dsdsds&address2=dfdfd&city=dsdsds&state=dfdfdfd&"
                + "country=fdfdf&zipcode=123456&udf1=dsdsds&udf2=fsdfdsf&udf3=jhghjg&udf4=fdfd&udf5=fdfdf&pg=dfdf";
        webView.postUrl(
                "http://host/payment.php",
                EncodingUtils.getBytes(postData, "BASE64"));

    }

    private class MyWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            webView.loadUrl(url);
            return true;
        }

        @Override
        public void onReceivedSslError(WebView view, SslErrorHandler handler,
                SslError error) {
            handler.proceed();
        }
    }
}

上面的代码在 webview 中执行 post 请求并重定向到支付网关。

设置settings.setDomStorageEnabled(true);对我有用 希望这会有所帮助。

Answer 8

要处理SSL,请从WebViewClient类获取方法 onReceivedSslError(),这是一个示例:

 webview.setWebViewClient(new WebViewClient() {
              ...
              ...
              ...

            @Override
            public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) {
                String message = "SSL Certificate error.";
                switch (error.getPrimaryError()) {
                    case SslError.SSL_UNTRUSTED:
                        message = "The certificate authority is not trusted.";
                        break;
                    case SslError.SSL_EXPIRED:
                        message = "The certificate has expired.";
                        break;
                    case SslError.SSL_IDMISMATCH:
                        message = "The certificate Hostname mismatch.";
                        break;
                    case SslError.SSL_NOTYETVALID:
                        message = "The certificate is not yet valid.";
                        break;
                }
                message += "\"SSL Certificate Error\" Do you want to continue anyway?.. YES";

                handler.proceed();
            }

        });

您可以在此处查看我的完整示例:https: //github.com/Jorgesys/Android-WebView-Logging

Answer 9

要解决Google安全问题，请执行以下操作：

顶行：

import android.webkit.SslErrorHandler;
import android.net.http.SslError;

码：

class SSLTolerentWebViewClient extends WebViewClient {
    @Override
    public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
        if (error.toString() == "piglet")
            handler.cancel();
        else
            handler.proceed(); // Ignore SSL certificate errors
    }
}