Usually, we write Reactive applications that will run on the main thread but there are cases where we need to use multithread. For example, after receiving an item from the Publisher, the Consumer needs to process something different from that data item. With that manipulation,… Read More
Compare to the flatMap() method in the Java Stream object or the flatMap() method in the Optional object in Java, we can manipulate the Stream or Optional objects of the simpler objects, the flatMap() method of the Mono object or the Flux object in the… Read More
In the previous tutorial Overview about Mock in Unit Test, I introduced you all a way to mock an object using the Mockito class. Mockito also supports us another way to initialize the Mock object using @Mock annotation. How is it in details? Let’s find… Read More
Unit Test is a tool that helps us to ensure that the code we write, reflects what we want accurately. In the process of working with the Unit Test, one of the problems we often encounter is that our code will call the methods of… Read More
DevTools is a set of Spring Boot tools that make it easy to develop our Spring Boot applications. Imagine: every time we change the code of an application, we usually have to restart the application to see the change, using Spring Boot DevTools we do… Read More
In my previous post, I showed you how to use Thymeleaf in Spring MVC. Using Thymeleaf will be much simpler thanks to the Spring Boot mechanism. How is it in detail? In this tutorial, I will guide you on how to use Thymeleaf in Spring… Read More
The spring-data-mongodb library of Spring, in addition to providing us with the MongoOperations interface makes it easy to manipulate MongoDB, which also provides us with the mechanism that a Spring Data project needs to do: minimize the repetitive code involved dealing with data management systems when… Read More
In the previous tutorial, I introduced to you all the basic operations with MongoDB using Java. If your application is using Spring framework, make use of a Spring library for MongoDB to manipulate this database system. How is it in details? Let’s find out in… Read More
WebClient is an interface, implementation is the DefaultWebClient object, introduced with Spring WebFlux that allows us to consume the Reactive Web Service. How to create a request and handle a response using the WebClient? Let’s find out in this tutorial. First, I will create a… Read More
Usually, when we want to request specific information from a RESTful Web Service, we usually use requests like “/student/2” or “/product/5”, where 2 and 5 are the values that can be changed depending on demand. To construct such requests in Spring MVC, we need to… Read More
