As of writing this post, Spring Boot 2.2 was released on October 16th, 2019. This new release is built on Spring Framework 5.2. The Spring Boot 2.2 has a number of great features, which we’ll explore in this post. Spring Framework and Java Spring Framework 5.2 Spring Boot 2.2 uses Spring Framework 5.2. A crucial […]Continue reading
1. Introduction In today’s blog post we will look at how we can use the caching provider Ehcache in Spring Boot. Ehcache is an open source library implemented in Java for implementing caches in Java programs, especially local and distributed caches in main memory or on the hard disk. Thanks to the implementation of JSR-107, […]Continue reading
Introduction Often, you will need to connect to more than one data source. Sometimes, this is for security reasons. An example of this is the storage of credit card information. You may wish to store the data elements in multiple data sources. If one of the data sources is compromised the data retrieved is useless […]Continue reading
1. Introduction In another blog post, we already looked at how we use the class RestTemplate to consume REST web services. In today’s blog post we will take a look at how we can use Apache HttpComponents as the HTTP client API for the RestTemplate. RestTemplate and Apaches HTTP client API work at different levels […]Continue reading
1. RestTemplate Introduction In today’s blog post we will have a look at Springs well-known rest client – the RestTemplate. The RestTemplate is the central class within the Spring framework for executing synchronous HTTP requests on the client side. Like Spring JdbcTemplate, RestTemplate is also a high-level API, which in turn is based on an […]Continue reading
In this article, we’ll to learn how to implement the service locator Design Pattern in Spring. We’ll begin with a brief introduction. Next, we’ll introduce an example that benefits from using the pattern. And finally, we’ll work through an implementation in Spring. Introduction: Service Locator Pattern When we begin working with the Spring framework, we run […]Continue reading
You might have heard about GraphQL and how Facebook uses GraphQL in their mobile applications. In this blog, I will show you how to implement GraphQL in a Spring Boot application and let’s see what kind of magic does GraphQL provides. Why GraphQL? If you do not […]Continue reading
1. JdbcTemplate Introduction If we want to perform CRUD operations on a relational database the Spring ecosystem provides Spring Data JPA and Spring Support for JDBC. Spring Support for JDBC focuses on the JdbcTemplate class, which is internally based on the JDBC API of the Java SDK. Anyone who has ever worked with the JDBC […]Continue reading
Spring Framework 5 introduces WebClient, a component in the new Web Reactive framework that helps build reactive and non-blocking web applications. In web applications, a common requirement is to make HTTP calls to other services. Prior to Spring 5, there was RestTemplate for client-side HTTP access. RestTemplate, which is part of the Spring MVC project, […]Continue reading
When developing Spring Boot applications, you need to tell the Spring Framework where to look for Spring components. Using component scan is one method of asking Spring to detect Spring managed components. Spring needs the information to locate and register all the Spring components with the application context when the application starts. Spring can auto […]Continue reading
