I need to create a screen (web application) that will be arranged around 30 small graphs, each with two series of data; These graphs need to be dynamically updated once every minute with data coming from the database.
What would be the best approach to create something like this?
What is the best way to "draw" these graphics on the page given that I know Javascript, servlet, java and html?
This seems like a broad, subjective question. One approach is to add all your charts to the page on load, poll the server for new data every minute, and update the charts with the results. You've tagged Highcharts, and they have an example showing exactly what you're trying to do: https://www.highcharts.com/demo/dynamic-update