In practical scenario it is very common to integrate a database with the web service application. Here we will see an example to use Hibernate to store and retrieve data in Spark Java application. We will use MySql database behind the Hibernate. The application provides HTML based UI for entering and viewing data. …

In this post we will see how to upload a multipart file using Spark Java. We will have a HTML frontend where user will select a file from his/her system. Then pressing the "Upload" button the file will be posted as multipart data to server. In the server side, the multipart file will be fetched and saved to a …

This post is very similar with the Spark Java example with JQuery Ajax except here we would use POST method for the Ajax call. Like the other example, we would get input of two numbers from the web page UI, make a ajax POST call to server with those numbers, the numbers get added at the server and returned result and …

Spark is a relatively new, simple and lightweight framework written in Java which helps developers to rapidly create web services in minimal effort. It comes with embedded Jetty web server which hosts the web services. The syntax of declaring web services are very simple, quite similar with Node.js, which makes Node.js …