Spring Boot Web with Thymeleaf: HTML template can't find the given JS file - javascript

I just set up a very basic Spring Boot Web Application with Thymeleaf, but I can't access my external JS file from the corresponding HTML file of my template and can't figure out why.
My resource folder structure is as follows:
Within my visualizeGraph.html I try to call the createGraph.js using following snippet within the <body> element:
<script th:src="#{/js/createGraph.js}" type="text/javascript" >
In the <head> element of visualizeGraph.html, I added my stylesheet using following snippet:
<link rel="stylesheet" type="text/css" media="all"
href="/css/graph.css" th:href="#{/css/graph.css}" />
My Spring Boot Web Container runs on Port :8082, so I access my webapplication from localhost:8082 and access the visualizeGraph template from localhost:8082/visualizeGraph
When I check the Developer Console (F12), it throws a 404 for the createGraph.js file, but not for the graph.css file -> it can find the css successfully.
I can even access the css through localhost:8082/css/graph.css but CAN'T access the js-file using localhost:8082/js/createGraph.js (throws a 404 - as expected)
I can't figure, what's the cause for this phenomenon as my application.properties also has no additional parameters for modifying the resource source folder etc.

Okay, this was VERY weird. I found the solution, but I am not sure, whether it's IntelliJ, which was responsible for this problem or something else.
What I did was to edit my <script> element in my HTML file to the following:
<script src="/js/createGraph.js" type="text/javascript" >
and my intention was solely to try out, whether it would change anything. Somehow, IntelliJ told me, that it was not able to find the path (neither the js folder, nor the createGraph.js file within it) so what it suggested was to create the folder and the file (so I did, using ALT+Enter). What I did afterwards is to just copy the content of my old createGraph.js to the new file and to delete the (very strangely the same named) old folder and file and voila, everything works as expected... Very weird.

You can call your JS files present in resources/static folder like below:
<script type="text/javascript" src="js/script.js"></script>
No need to give the forward slash before the js folder.
below I am attaching screenshot for my code:
Here, I was having images folder inside the static folder so we can directly call that folder.
If you have any further doubts please feel free to visit my github amisham96


GET http://localhost:3000/insert.js net::ERR_ABORTED 404 (Not Found)

I'm a beginner at web dev, I'm currently working on a project, but the javascript file insert.js won't load. The html document, upload.html is inside the public folder, and the javascript is inside the main folder.
I used the following path to link the javascript file,
<script src= "../insert.js"></script>
But it didn't seem to work, so I then tried moving upload.html to the main folder, which is HR and I used the following code,
<script src = "/insert.js"></script>
And this didn't work either, so I then tried moving insert.js to the public folder, and used the same path as I have mentioned above, but, then I couldn't export variables to app.js which is located in the main HR directory.
The image I have attached shows location of the files
I don't get what could possibly cause this, I think I should mention this as well, but I got an error while running my javascript file in node. So I inserted the following code in node_modules/whatwg-url/dist/encoding.js:
const {TextDecoder, TextEncoder} = require("util");
I don't know if this has anything to do with my issue, but I thought I would just mention it.
localhost can only access your public folder, so you have to move insert.js in the public folder and do:
<script src = "index.js"></script>
Also if you have node modules in that javascript file it wont run because it can't run the modules and you would have to use a bundler for that js file like webpack, rollup or snowpack.

JavaScript - Error 404 resource not found

I had a java script in my JSP, which worked fine. Now I want to move it to it's own file (abc.js). I created js-Folder and placed it there.
I tried to include it with <script language="JavaScript" type="text/javascript" src="./js/abc.js"></script> which links to http://localhost:8080/ProjectName/js/abc.js (from link in HTML-Code of the page). I think this should be correct, isn't it?
Nevertheless I get errors in the browser console (Failed to load resource: the server responded with a status of 404 () abc.js)
Do I have to register the .js somewhere to be recognized?
Edit: My project structure is like this:
|---page.jsp (that wants to include abc.js)
The WEB-INF directory is not publicly accessible. Your HTML file accesses the JS file over an public URL. Details see here: Include javascript file from inside WEB-INF
So the solution for your problem is to place the JS file on the same level as the WEB-INF directory, so that it is served publicly and adjust the src link accordingly:
<script type="text/javascript" src="${pageContext.request.contextPath}/js/abc.js"></script>
(How include an external JS file in a JSP page)

I can't use Javascript in Dreamweaver

My Javascript wont activate on dreamweaver. I attached it and everything but when i try to call it with script tags it does not appear on my live preview. i have it attached by this code
<script src="file:///C:/Users/Matthew/Desktop/Untitled-2.js" type="text/script"></script>
If someone could please help that would be awesome! :D
Live mode runs Your code in some virtual webserver and it cannot get local js file. Since browser may block resource from sharing (CORS). Think about putting js file to relative to html file and defining relative url to js file. Create js folder near to html file and put js file there and in Your html file define src="js/Untitled-2.js" – num8er 12 mins ago
Thanks Num8er
In my opinion, it is best practice to keep all files relative to the project. This means setting up a project folder and keeping files organised in sub-folders.
Consider this project structure:
Project folder
CSS folder
Javascript folder
Images folder
The sub-folders are directly children of the project folder, and inside each folder is the corresponding files.
The html file is also a direct child of the project folder (it's not in any other folder).
This means all the related files are relative to the html file.
So in your html file, you can link up these files easier.
<link href="CSS/style.css" rel="stylesheet">
<script src="Javascript/script.js" type="text/javascript"></script>
<img src="Images/image.jpg">
As you can see all the files are linked without a full path, this is called relative linking. Absolute linking is the opposite in which you specify the full path, such like you are doing at the moment:
<script src="file:///C:/Users/Matthew/Desktop/Untitled-2.js" type="text/script"></script>
This is good in certain places, however you should always try to aim for relative linking. If you follow this, you shouldn't have any more problems.

my html file won't link to stylesheets & javascript that reside in a parent directory

I am testing my website code, and I have the following folders in my working directory:
html (contains index.html)
When I try to bring up my website locally (the "index.html" inside of the html folder), none of the css or js files were found (404 Error).
However, before I made an html folder everything was linked together fine, and my file setup looked like this:
Also, when I created an "html" folder and put "index.html" inside of it, I changed the html code so that it would refer to the other files appropriately (from what I've seen on various websites):
<link href="../css/my_styles.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="../js/touch_functionality.js"></script>
<img src="../img/display_photo.jpg" alt="Display Photo">
Additional Information:
I am using a local Apache server to access the "index.html" file, and I have set the DocumentRoot for the VirtualHost I made to the "/html" folder.
Additionally, I thought this may have been a permissions error, but I downloaded Cygwin and I used "chmod 711" on all of the folders in my working directory and I have used "chmod 644" on the "index.html" file inside of the html folder, but the files still wouldn't be found.
I've done my research on this for quite a few hours, but unfortunately I haven't come across a solution for this yet. Any help would be much appreciated, thank you.
If I change the DocumentRoot to where all of my working space directory (instead of html) and place a .php file that simply contains the following line of code:
<?php require("html/index.html"); ?>
where my folders reside so my working directory looking like this:
-html (contains index.html)
Everything will work correctly. However, I would have to believe there is a way so that I don't have to do this "work-around" method. Any insight would be incredibly helpful, thanks again.
The reason being is that the web server only allows one to view files in the html directory or below.
Otherwise it will somebody to access any part of your file system.
Would you like that?
To fix this go back to the configuration that works,

why javascript library cannot be found when imported in html page deployed in Tomcat7?

I have a web service project in eclipse, and i deploy it to Tomcat by right clicking on the project and click on run on server. The following script tag is in one of the html pages:
<script type="text/javascript" src="../assests/js/lib/yui_3.6.0pr3/yui/build/yui/yui-min.js"></script>
The html page is located in folder called SamplePages which is contained in the folder TEST-WS/production, the folder assets is also in TEST-WS/production.
When i open this page in the browser, i get the following JS error:
GET http://localhost:8080/TEST-WS/production/assests/js/lib/yui_3.6.0pr3/yui/build/yui/yui-min.js 404 (Not Found)
The path TEST-WS/production/assests/js/lib/yui_3.6.0pr3/yui/build/yui/yui-min.js is correct and the .js file is there. I have other scripts like:
<script type="text/javascript" src="../assets/js/lib/all-concat.js"></script>
but it works fine. what could be the problem?
One of those paths is probably wrong.