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Java Multi-line String 1. Overview Due to the fact that there is no native multi-line string class in Java yet, it’s a little bit tricky to create and utilize multi-line strings. In this tutorial, we walk through several methods to make and use multi-line strings in Java. 2. Getting the… Continue Reading java-multiline-string
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Jackson JSON Views 1. Overview In this tutorial, we’ll go over how to use Jackson JSON Views to serialize/deserialize objects, customize the views and finally – how to start integrating with Spring. 2. Serialize Using JSON Views First – let’s go through a simple example – serialize an object with… Continue Reading jackson-json-view-annotation
Java Weekly, Issue 280 Here we go… 1. Spring and Java ===== >> Multiple Cache Configurations with Caffeine and Spring Boot [techblog.bozho.net] A novel extension of the CaffeineCacheManager lets you configure caches with different specs, all managed by the same CacheManager. Very cool. >> Running Kotlin Tests With Gradle [petrikainulainen.net]… Continue Reading java-weekly-280
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Testing Web APIs with Postman Collections 1. Introduction To thoroughly test a web API, we need some kind of web client to access the API’s endpoints. Postman is a standalone tool that exercises web APIs by making HTTP requests from outside the service. When using Postman, we don’t need to… Continue Reading postman-testing-collections
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Testing a REST API with JBehave 1. Introduction In this article, we’ll have a quick look at JBehave, then focus on testing a REST API from a BDD perspective. 2. JBehave and BDD JBehave is a Behaviour Driven Development framework. It intends to provide an intuitive and accessible way for… Continue Reading jbehave-rest-testing
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A Guide to Byte Buddy 1. Overview Simply put, ByteBuddy is a library for generating Java classes dynamically at run-time. In this to-the-point article, we’re going to use the framework to manipulate existing classes, create new classes on demand, and even intercept method calls. 2. Dependencies Let’s first add the… Continue Reading byte-buddy
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Command-Line Arguments in Java 1. Introduction It’s quite common to run applications from the command-line using arguments. Especially on the server-side. Usually, we don’t want the application to do the same thing on every run: we want to configure it’s behavior some way. In this short tutorial, we’ll explore how… Continue Reading java-command-line-arguments
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How to Change the Default Port in Spring Boot 1. Introduction Spring Boot provides sensible defaults for many configuration properties. Still, we sometimes need to customize these with our case-specific values. A common use case is changing the default port for the embedded server. In this quick tutorial, we’ll cover… Continue Reading spring-boot-change-port
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Java – Byte Array to Writer 1. Overview In this very quick tutorial, we’ll discuss how to convert byte[] to Writer using plain Java, Guava and Commons IO. 2. With Plain Java Let’s start with a simple Java solution: @Test public void givenPlainJava_whenConvertingByteArrayIntoWriter_thenCorrect() throws IOException { byte[] initialArray = “With… Continue Reading java-convert-byte-array-to-writer
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Spring – Log Incoming Requests 1. Introduction In this quick tutorial, we’re going to show the basics of logging incoming requests using Spring’s logging filter. If you’re just getting started with logging, check out this logging intro article, as well as the SLF4J article. 2. Maven Dependencies The logging dependencies… Continue Reading spring-http-logging
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