New solution for Java applet requiring communication with browser using JavaScript

Within our web platform, we have been utilizing a Java applet to interact with the MS Word application using jacob jar. This allows users to open, edit, and automatically upload files to the server upon saving.

However, due to Google Chrome discontinuing support for NPAPI, we will no longer be able to run our Java applet on this browser in the near future.

As we strive to maintain a seamless user experience, we are seeking suggestions for an alternative solution that can replicate the functionality of the Java applet. Any ideas would be greatly appreciated.

javascriptjavaappletnpapijacob

Answer №1

Two potential solutions come to mind.

  1. Develop a self-contained application that encapsulates your web app using technologies like electron. This would allow for customization of browser-to-desktop integration, but would require client-side installation.
  2. Implement a webstart application (or another type of client-side installation). This option would involve starting a web server or connecting to one and communicating via http.

The disappearance of the Applet is disappointing as it was a unique technology that will be missed. The alternatives available now seem more like workarounds, as breaking out of the browser sandbox securely remains challenging.

Personally, the absence of the Applet has made automating certain processes more complicated, leading me to seek alternative ways to achieve similar results.

One thing to keep in mind if setting up a local web server is security precautions. Local servers can potentially be accessed by other system processes, so care must be taken to prevent unwanted access.

Answer №2

Encountering the same issue, we have found that using Webstart no longer allows for seamless communication. To overcome this obstacle, we plan on implementing Websockets to facilitate communication between our webstart application and browser. Our initial approach involves setting up a Websockets server within the webstart environment and having the browser connect to localhost. In the event that security restrictions within browsers prevent this setup, we will resort to establishing communication through the webserver by having the browser, webserver, and webstart application connect to the webserver to exchange messages.

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