Hi Chris, On 17.02.2021 14:59, Christopher Schultz wrote: > Rony and Leo, > > On 2/17/21 02:58, Rony G. Flatscher (Apache) wrote: >> Hi Leo, >> >> why would you want to do that if you could do the same with Java? What is >> the motivation, the use >> case for you? >> >> How urgent is this (I may have something for both, Java EE and Jakarta EE, >> but need a little bit of >> time)? >> >> —-rony >> >> >> >> On 15.02.2021 07:29, leo wrote: >>> Hi there >>> >>> I am trying to find out how to process servlets written in server-side >>> JavaScript through Tomcat. >>> >>> I looked through the Tomcat FAQ and How-To but couldn't find anything. By >>> googling I found a way >>> to hook up Python through Jython's PyServlet class. I tried this and it >>> works great. >>> >>> But I am looking for server-side JavaScript in Tomcat. I am aware of the >>> JavaScript engine >>> Nashorn. Is there a way to hook up Nashorn with a servlet class, so that >>> Tomcat serves JavaScript >>> servlets? Something like a "JavaScript Server Page" for Tomcat would be >>> fine too. >>> >>> Many thanks for any pointers, >>> Leo >>> >>> ps: I use Tomcat 8.5, but I could move to another Tomcat version for this. > > Weird; I never saw the OP on the list, only Rony's reply.
Yes, somehow it appeared later (Tuesday evening here, but the date and time in the post is Monday), at least I recognized it Tuesday evening for the first time. > Usually if you want to use server-side JavaScript, you use something like > Node.js instead of a > servlet container. Why not use Node? This may be an option if you desire to write in JavaScript. (But it may be the case that creating web applications under e.g. Tomcat may be even easier than with Node, one would have to check it out though. ;) ) > If you'd really like to use Tomcat, you will need to write a Servlet that > establishes a JavaScript > environment (e.g. Nashhorn), provides all the plumbing for the > servlet-container provided > resources (e.g. request, response, streams, session, etc.) as well as > error-handling, etc. > > It's a big job. > > I'd be surprised is nobody had built something like this before. Or maybe > everybody just uses > Node.js. Well, I had a need to let Business Administration (BA) students who just learned programming in an easy to learn, yet powerful programming language (ooRexx, a message based, dynamically typed language, originating at IBM, but in open-source for a long time) create little web applications with Tomcat. This way they experience what is basically involved when creating a web app in person (even if they never will create fully fledged web apps on their own it will help them get a basic understanding, better estimates for web app projects and the like). For these BA students - even if they "experienced" - Java or JavaScript would be outside of their scope, short of having enough learning and training time needed for mastering Java and JavaScript to the extent that is needed to create fully-fledged web applications in Java (like a web-shop with cart, e-mail-newsletter, uploading files, etc.). This has to do with the BA curriculum in question that does not provide enough resources/time (in this particular case a four hours lecture with homework assignments for the duration of one semester, i.e. appr. for four months) for learning a programming language like Java or JavaScript to a professional extent, which would be possible e.g. at a technical university or in specific IS/CIS studies. My BA students on the other hand have a working knowledge and expierence with ooRexx (which they learned in a four hour class during a semester and learned to apply it to interact with Windows, MS Office, but also with Java - camouflaged as ooRexx - in an operating-system independent manner, i.e. creating GUI, socket programs, OpenOffice/LibreOffice, exploiting JavaFX in an operating system platform independent manner) such that ooRexx would have become feasible for them for using it to learn and to experiment with creating web apps, if they so desire. If only Tomcat et.al. would allow for that somehow. As having authored Apache BSF and JSR-223 (package javax.script introduced in Java 6) bindings for ooRexx (using a combination of JNI, C++, Java, ooRexx) it would be feasible and desirable to create a solution that not only supports a single scripting/programming language like ooRexx in this case, but supports in general also any other programming language for which there is a bindings either for Apache BSF and/or JSR-223 out of the box. As there is a JSR-223 bindings for Nashorn, one should be able to apply Nashorn/JavaScript with this very same infrastructure. Currently I am assessing the results (have yet to check-out and to grade two seminar papers and one Bachelor thesis) and at first sight look quite promising, but this will take a little bit of time until I get to them (planned for the end of next week), unless Leo has an urgent need. [In the meantime, if there is interest, I could point to a little informal overview article where I explained how one would create web apps in Java on Tomcat in general to the Rexx community and how one would go about doing the same with deploying ooRexx web apps on Tomcat. Maybe this might be helpful if you know of persons who are not coding or maybe not proficient enough in Java, but like/are able to code in other programming/scripting languages and wish to create web apps in their language of choice that get deployed with Tomcat.] ---rony --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
