Enterprise Spring applications typically need to run in multiple environments. For example, development, testing, staging, and production. Each such environment has its own set of settings. For example, you might be using an embedded H2 database for development but an enterprise-grade Oracle or MySQL database for production. So the data source and connection configurations for […]Continue reading
Using inheritance can be a valuable time saver for your Spring Framework configurations. In Spring, a bean definition is the configuration information that we provide for beans. For example, bean definition can include property values and constructor arguments of the bean. Bean definition can also include container-specific information, such as init and destroy method settings, […]Continue reading
Introduction Spring provides a way to automatically detect the relationships between various beans. This can be done by declaring all the bean dependencies in Spring configuration file. So, Spring is able to utilize the BeanFactory to know the dependencies across all the used beans. Autowiring Modes Spring supports the following autowiring modes: 1. Autowiring ‘no’: […]Continue reading
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 post, I’ll explain how to work with resources in Spring using ResourceLoader. We’ll begin with a brief introduction about resources. Next, we’ll look at the Resource interface and some of its important methods. Finally, we’ll go through its implementations. Introduction: Working With Resources In Spring via ResourceLoader Frequently, we need to read external resources […]Continue reading
Spring Aware Interfaces allow you to hook into the inner workings of the Spring Framework. Though Spring Aware interfaces, you can access the Spring context, or Spring Bean life cycle events. Your Spring beans might require access to framework objects, such as ApplicationContext, BeanFactory, and ResourceLoader . To gain access, a bean can implement one […]Continue reading
