webView = (WebView) findViewById(R.id.webViewId);
//支持javascript
webView.getSettings().setJavaScriptEnabled(true);
//打开domStorage，支持网页端本地存储window.localStorage
webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);

//自适应屏幕
webView.getSettings().setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
webView.getSettings().setLoadWithOverviewMode(true);

//如果不设置WebViewClient，请求会跳转系统浏览器

webView.setWebViewClient(new WebViewClient() {

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        return false;

    }

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
        return false;
    }

    @Override
    public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
        super.onReceivedError(view, errorCode, description, failingUrl);
        //System.out.println(failingUrl);
        if( failingUrl.startsWith("alipays:") ) {
            view.stopLoading();
        }
    }

    @Nullable
    @Override
    public WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request) {
        String url = request.getUrl().toString();
        if( url.startsWith("alipays:") ) {
            try {
                Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
                startActivity(intent);
            } catch (Exception e) {
            }
            return null;
        }else {
            return super.shouldInterceptRequest(view, request);
        }
    }


});

webView.loadUrl(url);