We can also use placeholders in properties. A placeholder is a simple reference to another defined property, like a variable.
Using @Value to inject properties is fine as long as it is just a handful. When we have more, and they are grouped around a single configuration entity like all props for a remote connection, we can introduce a configuration class using the @ConfigurationProperties annotation of Spring Boot.
Properties in Spring are not limited to Strings. Sure, they are in the property file, but not necessarily as a field in our class. Whatever type we use, Spring will try to convert the string value from our input to the correct type.
Spring makes it easy to inject configuration values from outside the code. Simple use the @Value annotation on a field and define the name of the property like:
In this short tutorial, we’ll cover how to receive a webhook from Paddle in Spring Boot properly.
The RestTemplate is a little helper class that makes calling web requests an easier. Instead of wrangling with protocols and transformation by ourselves, we get that out of the box by Spring MVC.
Spring Boot is not only for server applications. Did you know you can write command line apps too?
27.09.2017 by Jens in Spring Boot
In this tutorial, we are going to look at Spring Session and build two applications which share the session in Redis.
20.09.2017 by Jens in Spring Boot
One of the features of the Spring Framework is a cache you can transparently add to your code. All you need to do is set an annotation on a method you want to cache and configure the caching mechanism itself. Setting up the cache wasn’t a big deal before, and with Spring Boot it got even simpler. Let’s dive into it with an example.
In your Spring MVC application, you will usually have at least one endpoint which accepts and ID as a path variable or request parameter, and often the next thing you will do is to load the model from your Spring Data repository. However, there is an easier way as you will see in a minute.