Building a web app with Javalin. How do I display a PDF from my staticfiles folder in the app.post function?
I can't use .getResourceAsStream because it has images, and the function couldn't parse it. I can serve html files using ctx.html but can't find similar for PDF. I can find it manually by typing the file name into the address bar but want to serve it automatically.
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Basically I'm trying to build an HTML file and return as a standalone webpage for a webservice call. I have challenges here:
How to return a HTML file so that the browser will be able to view that as an HTML page?
How to refer this file in my code, and build it dynamically?
Note: I did come across a solution for my first point: " to return as an input stream". However while calling the webservice, I noticed the file downloading directly. But its not in .html. It's just a file which I need to edit it to change to .html and then view.
Any help appreciated!
Can I upload a static HTML file to templates folder without re-deploying the app?
Offline I create an HTML file which I want to upload to my Google app engine app,which displays the HTML as per URLs. But I don't want to deploy my site every time I am uploading a new file.
Any suggestion would be helpful.
No you cant if you want to store them in static storage.
You can store them somewhere non-static but you will lose the many advantages of having it as static content.
I am developing a Java project in which i have a sub-module where i need to extract contents [text, image, color] from a webpage and compare it with another webpage. I am planning to use WinHTTrack software for downloading the webpage locally, but the problem is it doesn't save it as HTML. How can i download a webpage with HTML extension using softwares such as WinHTTrack [or just saving the webpage through ctrl+s is enogh.?]. Also i am planning to use HTML Parsers to extract the 3 content types[text, image, color],after downloading the webpage locally. So which parser to go with.?
WEll I use Httrack and it fetches html files as well. You are probably taking winhttrack project file as the only output file, but if you check inside the project directory there are html files (together with images, etc). I would suggest using - http://htmlparser.sourceforge.net/. It is a java library and since your project is a Java project it should be fairly easy to use it. You can also save the whole website locally using org.htmlparser.parserapplications.SiteCapturer (and specify whether resources such as images should be captured as well). Hope it helps.
i am trying to create an android application that saves webpages to use it in offline-browsing, i was able to save the webpage but the problem was in the contents (images, javascripts,..etc), is there a way to do so programmatically, i use eclipse and test my work on an emulator.
hm, I am afraid you should parse html's yourself (I mean do that with a properly lib) and store all resources (css, js, images, videos etc.) too.
s. how it is done in a java crawler: open source crawlers
You will need to search for all images, javascript files, css files, etc... and download them, saving them to the same relative path to the HMTL files - Assuming the html is coded with relative paths (images/image.png) and not absolute paths (http://www.domain.com/image/image.png).
You can pretty easily search the html string for <img, <script, <link etc.. and parse from there - or you can find a 3rd party html parser
I have a WebView on my Android application which loads (WebView.loadUrl()) different local HTML files from phone's internal storage. I would like to include some custom css styles for them.
Now, I could have my app edit every HTML file and add linking reference for the CSS file.
I could also read the file contents, add the CSS linking and use WebView.loadData() to load it.
But is it possible to do this a lot simpler and efficiently?
Note: The HTML files are downloaded from a website. So editing them manually is not possible in this case, but once downloaded they can be edited via the app if necessary.
One possibility (I have not tried this):
WebView.loadDataWithBaseURL(String baseUrl, String data, ..)
takes a baseURL for the document to use to resolve relative URLs. Take a look at the CSS url and construct baseURL so that CSS url will reference local CSS file.