https://mywebsite.com/contextroot/basic.html
The above url is working fine because my project has basic.html under the "deployedResources/webapp"
But when I enter the url as https://mywebsite.com/contextroot/basic.html/ I am getting 403 forbidden.
How do I remove the "/" from the url automatically and get the file basic.html?
The 403 status code is a result of the Application Server trying to serve this URL as a static resource and finding that it ends on a slash and identifying this as a request to a directory (due to the trailing slash). Directory browsing is disabled by default, thus the 403 forbidden status.
A possible simple solution to this problem is to add a filter to your web application to remove the trailing slash from the URL. See the accepted answer and question update here for an example:
How to use a servlet filter in Java to change an incoming servlet request url?
Another option is to use URL rewrite rules in your Web Server (if you are using one).