Let’s learn how to configure spring boot to show sql statements generated by Spring JPA and hibernate via various approaches. Overview If you are using Spring JPA or hibernate for JDBC abstraction, then you may already find it difficult to debug your SQL statements. For this reason you can configure your application to print SQL … View This post
In this post, We will try to understand the “Web server failed to start. Port 8080 was already in use” error and how to fix it. Why? In network, an IP address identifies each machines. Similarly, The network port identifies the application or process running on a machine. When an application wants to use a port, the … View This post
Itext PDF library lets you convert HTML to PDF documents. In this post we will take a look at simple example for HTML to PDF conversion. itext pdf dependencies To add support for itext-pdf dependencies, you need to add the following kernel and html 2 pdf dependencies. The kernel dependency provides the core module for … View This post
In this post, We will see how to format and work with date objects in thymeleaf templates using the #dates utility with an example. Introduction Before getting in further, read a little about thymeleaf and how it can help build dynamic web applications. The #dates object in thymeleaf deals with date objects in thymeleaf model. … View This post
Introduction Spring Boot provides support to typical JDBC operations via jdbcTemplate. With JDBC templates, you can perform complex database operations which are not possible through JPA. Starter Dependencies JDBC templates feature is part of Spring JDBC module. This means that either JPA starter or JDBC starter will bring this support. As we don’t need JPA … View This post
In this post, We will see how we can use Apache Derby embedded database with Spring Boot applications with an example. Introduction Apache Derby is a pure java implementation of a relational database. Also, it complies to JDBC and RDBMS standards. For this reason, we can easily embed Derby into applications. Derby Dependencies To include … View This post
Introduction In this post, We will take a look at using and configuring h2 database with spring boot application. H2 is an in-memory database which we can embed within the application. For this reason, H2 is the right candidate for loading test data or to prototype an application. Spring Boot Dependencies First of all, both … View This post
Lets learn how to integrate Drools with Spring Boot application for business rules management with an Example. Drools is a Business Rule Engine that is based on Java Rules API. It lets you create complex applications where the business logic changes a lot post development. Introduction For example, you may run a shopping website that … View This post
Let’s go through some of the important spring Boot interview questions for beginners. We gathered these questions from some of the top MNCs across the globe. What is Spring Boot? Spring Boot is an opinionated view of the Spring ecosystem and third-party libraries to kickstart an application development with ease. Spring Boot makes this possible … View This post
Lets learn about Spring Boot @Async annotation and use it to achieve asynchronous method execution in Spring Boot. Introduction to @Async annotation Normally, A program would run from top to bottom. But sometimes, one operation or method may take time and it would cause other methods to wait. In these cases, it makes sense to … View This post
