I am working on an application which loads multiple js files on client side during first hit in browser. It takes quiet a bit of time to load the first page of our application which can be improved using server side rendering.
We are using java and spring in our backend application. So I am looking for a way to load all the js files on server side during application load(server startup) instead of client side. So I removed js file reference from the jsp and I am trying to load the js files using nashorn as below:
#Configuration
public class ConfigureScript {
#Bean
ScriptTemplateConfigurer configurer() {
ScriptTemplateConfigurer configurer = new ScriptTemplateConfigurer();
configurer.setEngineName("nashorn");
configurer.setScripts("/js/common/common.js", "/js/utils/utils.js");
configurer.setRenderFunction("render");
configurer.setSharedEngine(false);
return configurer;
}
}
But somehow this doesn't seems to work for me since application just keeps loading. Can you guys please suggest the problem with above code or some other way to achieve the server side loading of js files?
Also, if you can suggest is there a way to debug whether js files are loaded properly or not?
for debugging I use postman chrome plugin. When server side rendering takes place - hit to the basic url (e.g. "/" or any other supposed) returns the content rather than jsp template.
removing js files from jsp - not sure this is correct. js should handle anyway some users interactions in browser after the rendering on server side, except probably that would be fine if content returned from server is static.
in snipped above - two files are loaded. the way how nashorn works - it builds the entire hierarchy of js objects, required for rendering. Are those files enough? Implementation of "render" function should take the job to render.
Related
I have a strange situation where I need to send some image data to a php file from within the angular application itself... yes, the php file resides in the angular docroot.
Every time I try to upload image data (from the browser) to this file, the application doesn't seem to go through to it. Instead, I get back a response that is the entire index.html code. I understand that this is probably because I am using ui.router to handle my routing, and have it defaulting to index.html. However, I have tried to add app.use("/upload.php", express.static(path.join(__dirname, '/upload.php'))); to my node server script... in hope that the /upload.php url would be succesfully routed... however, I still only get back index.html code and it seems that the upload.php file is never reached.
Can anybody provide any hinters? Much appreciated.
Still very much a beginner to Android and Java, so thanks in advance for your patience!
I am trying to find a means of passing a file path (which could be in the form of a simple string or integer) from an activity (in Java) to a WebView (which is rendering a static local html file that is running JS). The issue is complicated by the fact that I am using an AR SDK (Wikitude) and the port to the SDK uses their own customised WebView(which also renders a CameraSurfaceView simultaneously) - controlling their suite is then done in a JS file loaded by the html file.
Any solution is welcome, I am new to Android so don't even know where to begin on this one. In simplest terms, I want to take a chosen option from one activity and use that information to tell my JS file what asset to load/render. If this were a web app you could use some templating to load a dynamic variable into your html (e.g. Using erb in ruby or moustache in JS).
If there is no equivalent for templating Java into a JS file, my current best guess is to write a JSON object using JsonWriter in the activity and subsequently load that file in the JS, if this is indeed the best solution, I am struggling to navigate the internal / external storage of android relative to the assets folder of my app - can anyone shed some light on how I would do that?
I've tried to keep this as general as possible, code can be provided on request.
you can pass chosen option from one activity when you are starting second activity with following code.
//Code to start another activity
Intent intent = new Intent(MainActivity.this, Second_Activity.class);
pass the value with intent
intent.putExtra("choice1", "choice1");
intent.putExtra("choice1", "choice1");
startActivity(intent);
now in second activity onCreate() you can receive these value from intent using following code
String choice1 = getIntent().getStringExtra("choice1");
Is there any way for me to run Javascript in a Rails controller? I basically have a Javascript widget that I am loading in the browser right now (the script is hosted somewhere else).
I want to run it server-side, and then parse it's output (renders HTML) and return it via an API call. Is this even possible?
I think what you are talking about is a _partial_name_here.js.erb template. You can render it like any partial from the controller, and you can write your JS there. More details here.
This is for a new application, there's going to be several servers handling different parts (one for htmls, one as a proxy to handle https requests, and a full java backend with a database). The view server is supposed to be as simple as possible (an apache server delivering the htmls and that's it)
The idea is to use the pure htmls (with JS) that the UI designed created. Now, I thought of making the entire application using Jquery, by pulling all the dynamic data and append js files with logic on how to handle the ajax response.
My problem comes when I want to reuse htmls (the header, the footer and the menu are exactly the same for all pages). I can call, for example, /contact.html, and through ajax, call header.html, footer.html and menu.html. But that would mean 4 GET requests only for the main page (plus, rendering could be really off until all requests are finished).
I also don't want to have single full pages, because if I want to change the menu, I have to make that change in every html.
Is there some other alternative I'm missing ? If not, what is the best approach here (performance AND maintenance are equally important here)
Try http://mixer2.org/ .
Mixer2 can load html templates and convert them to java bean instance.
All the html tag and org.mixer2.xhtml.* java class are mapped one by one automatically.
So, You can load several templates such as "header.html", "footer.html", and re-use the tag snippet copy.
While developing my app (asp.net mvc3) locally everything was fine using the VS dev app server. The app was located at localhost/. However, I'm attempting to deploy the application on a IIS 7.5 server in a /Management directory and having a lot of routing issues as a few calls in my app rely on the app being at the route.
I have some javascript code that calls my controller through an ajax call that looks like this:
url: "/en/Home/GetFormula/"
I would like it to go to: /Management/en/Home/GetFormula but instead it's going to the root of the site and looking for /en/Home/GetFormula and returning 404 errors.
Any ideas on how I can fix my javascript routing to default /Management/ as the root of the site?
Thanks
When the pseudo-URL passed to an HTTP request begins with a slash (e.g. "/path/to/resource"), the pseudo-URL is "completed" by treating it as if the given path were under the Web site's root directory (e.g. "http://my.site/path/to/directory").
Clearly, you were expecting the pseudo-URL to be processed as if the given path were under your Web application's root directory. Well, I have bad news for you: The HTTP protocol does not deal with such a thing as a "Web application".
The ASP.NET MVC Framework provides the Url.Content function, which takes pseudo-URLs beginning with a tilde character (e.g., "~/path/to/resource") and returns the result of replacing the tilde character with the Web application's root directory (e.g., "http://my.site/an/application/path/to/resource", assuming the Web application's root directory is "http:/my.site/an/application"). However, the ASP.NET MVC Framework is only available on the server side. If your JavaScript runs on the client side, it cannot call Url.Content.
But not all is lost. The ASP.NET MVC Framework allows you to dynamically generate JavaScript code on the server and run it on the client, the same way it allows you to dynamically generate HTML content and of course send it to the client. That way, you can expand the pseudo-URLs into actual URLs on the server side, and deploy the resulting JavaScript code to the client.
To avoid confusion about where you are currently try:
url: document.URL + "/Management/Home/GetFormula"
I solved this issue adding a html hidden field on my page where, on the server side, I put the correct url inferred with the Url.RouteUrl method like this:
<input id="MyHiddenFieldName" name="MyHiddenFieldName" type="hidden" value="#Url.RouteUrl(new { area = "MyArea", controller = "MyController", action = "MyAction" />
then, on your javascript code you could do this:
url: $("#MyHiddenFieldName).val()