Question

I have a webpage that has JavaScript in it. The script contains a method that updates the webpage. I also have a java UDP server. When I get some parameters from a client, I want to call the method in the javascript to update the page.

Is it possible to call methods in Javascript from Java source code? Any pointers?

Thanks!

EDIT: For Ajax, the “request” initiates from the webpage. I want something that can change the webpage by itself – without this request.

A more succinct question would be: Can I dynamically update a webpage from java source file?

Answer 1

This is what we wanted to do:
-Send co-ordinates from an android phone to a server
-Plot these on a map in a browser window

The complexity was – One ‘box’ was server for android, and client for google maps. And we needed some glue between these two functionalities.

We initially tried ActiveMQ but could not get it to work.

Due to time constraints, we were forced to explore other approaches… our end result isn’t elegant, but it works.

We have a FIFO on the server to which the co-ordinates are written. On the same server, our map page is also hosted. On a button press, XMLHttpRequest is sent to the server. In response, a co-ordinate is dequeued and sent back, which is plotted on the map using google maps api.

I will be happy to share more details/answer questions…