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While developing database driven applications using some ORM framework, some people prefer Object first approach and others follow DB first approach. I prefer DB first approach. So, let us start listing down all the domain entities in our JCart application domain. Product Category Customer Order OrderItem Cart Address User Role Permission Let us create the database tables as follows: Though we identified Cart as a domain entity, we are not creating the table for holding the Cart details.

Let us create a root pom type maven project with 3 sub-modules jcart-core, jcart-admin and jcart-site. jcart-core module will contain all the core logic excluding web related stuff. jcart-admin module will contain all the administration related web functionality like Controllers, Security, Validators etc. jcart-site module will contain all the shoppingcart related web functionality like Controllers, Security, Validators etc. All these modules use SpringBoot, but as of now STS/IntellijIdea are not providing option to create multi-module SpringBoot application, we will be creating Maven modules and then configure SpringBoot dependencies manually.

Now that we have completed the most difficult part (writing Introduction to technical article series is much harder than you think!!), so let’s start the fun part. Coding!!! Note: It is going to be a fast paced tutorial. Obviously we can’t cover every little bit of all the technologies used in our application. So I would suggest to explore more on individual technologies like Spring, Thymeleaf on your own. I would strongly suggest to checkout the code from https://github.

For our JCart application development we will be using the following Softwares/Tools. JDK 8 SpringSource Tool Suite (STS) MySQL Git Maven Jenkins SonarQube Apache/Nginx WebServer I am not going to explain how to install JDK or MySQL because there are plenty of articles you can find on internet. If you are using Ubuntu based Linux Operating System then you can refer my article My Development Environment Setup on Linux to setup Java development tool chain.

In our previous article JCart Requirements Analysis we have listed out all the requirements that we need to implement for JCart application. Now we need to come up with an implementation and release plan. As we are following iteration model, we will plan for N iterations where in each iteration we will implement some usecases. After listing out all the implementation tasks and based on the task dependencies, we came up with the following Iteration plan.

Selecting the right technology stack is very crucial and plays an important role in project success. Many of the architects (unknowingly??!!) try to make complex designs by trying to use all kinds of latest and greatest stuff. On the other hand some architects try to be in their comfort zone by limiting their technology stack to the technologies with which they are comfortable. Both approaches are dangerous. One should understand the business needs and pick the technologies that are necessary for project.

For building our JCart e-commerce application we will develop two web applications, one for ShoppingCart and another one for Administration. Let us explore the requirements of both ShoppingCart and Administration websites in detail. ShoppingCart Site Requirements Home Page: This page shows list of categories and few products in each category. From this screen customers can click on any Category name to see all the products in that particular category or can add a product to cart.

As I promised in my article Developing a simple e-commerce application from scratch to production using SpringBoot , I am starting first post by introducing the application JCart that we are going to build. One of my friend makes quilling toys and she sell them by advertising on Facebook or through word of mouth. Now she is getting more and more customers and she wants to expand her business by going online.

We can find plenty of information on any technical topic, be it Java, .NET, Python or any frameworks like Spring, Hibernate, CDI, JSF etc. You can find hundreds of well written blogs on many of these topics. For example, you can find lot of tutorials on how to use SpringBoot or how to use various mappings in JPA/Hibernate or how to do form validations in JSF etc. Also, there are plenty of books published by well established publishers on most of the technologies.

As I mentioned in my previous post Thinking of moving from Windows to Linux? I am moving from Windows to Linux. Setting up my development environment is a bit tedious because I have to hunt down the applications and execute various commands to setup. So I thought of make a note of them in a post so that it will be easier for me next time. I am using Ubuntu/LinuxMint system so I am using apt-get to install, if you are using Fedora/CentOS you can use yum/dnf.