问net::ERR_HTTP_RESPONSE_CODE_FAILURE on加载url android webview

EN

 @Override
        public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request){
            Log.d("WebViewActivity", request.getUrl().toString());
            if( request.getUrl().toString().startsWith("http:") || request.getUrl().toString().startsWith("https:") ) {



            }
            Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(request.getUrl().toString()));
            startActivity( intent );
            return true;
        }

view.loadUrl (String.valueOf (request.getUrl ()));
return false;