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HTTP Requests with Kotlin and khttp 1. Introduction The HTTP protocol and APIs built on it are of central importance in programming these days. On the JVM we have several available options, from lower-level to very high-level libraries, from established projects to new kids on the block. However, most of… Continue Reading kotlin-khttp
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Serve Static Resources with Spring 1. Overview This article explores how to serve static resources with Spring – using both XML and Java configuration. Further reading: Cachable Static Assets with Spring MVC This article shows how to cache your static assets such as Javascript and CSS files when serving them with Spring… Continue Reading spring-mvc-static-resources
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Introduction to Java Serialization 1. Introduction Serialization is the conversion of the state of an object into a byte stream; deserialization does the opposite. Stated differently, serialization is the conversion of a Java object into a static stream (sequence) of bytes which can then be saved to a database or… Continue Reading java-serialization
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Java Weekly, Issue 242 Here we go… 1. Spring and Java ===== >> Simplifying packaging Spring Boot 2 applications into Docker images using Google’s Jib [tech.asimio.net] A nice write-up about this handy Maven plugin that lets you build a Docker image without a Docker host. Very cool. >> Use JDBI with Spring… Continue Reading java-weekly-242
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Method Handles in Java 1. Introduction In this article, we’re going to explore an important API that was introduced in Java 7 and enhanced in the following versions, the java.lang.invoke.MethodHandles. In particular, we’ll learn what method handles are, how to create them and how to use them. 2. What are… Continue Reading java-method-handles
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HttpClient 4 – Send Custom Cookie 1. Overview This tutorial will focus on how to send a Custom Cookie using the Apache HttpClient 4. If you want to dig deeper and learn other cool things you can do with the HttpClient – head on over to the main HttpClient tutorial.… Continue Reading httpclient-4-cookies
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Many-To-Many Relationship in JPA 1. Introduction In this tutorial, we’ll see multiple ways to deal with many-to-many relationships using JPA. To present the ideas, we’ll use a model of students, courses, and various relationships between them. For the sake of simplicity, in the code examples, we’ll only show the attributes… Continue Reading jpa-many-to-many
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Introduction to SSL in Java 1. Overview In this tutorial, we’ll introduce SSL and explore how we can use it in Java using JSSE (Java Secure Socket Extension) API. 2. Introduction Simply put, the Secured Socket Layer (SSL) enables a secured connection between two parties, usually clients and servers. SSL provisions… Continue Reading java-ssl
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How to Check If a Key Exists in a Map 1. Overview In this brief tutorial, we’ll look at ways to check if a key exists in a Map. Specifically, we’ll focus on containsKey and get. 2. containsKey If we take a look at the JavaDoc for Map#containsKey: Returns true if this map contains a mapping… Continue Reading java-map-key-exists
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Changing the Logging Level at the Runtime for a Spring Boot Application 1. Introduction In this tutorial, we’re going to look at ways we can change the logging level of a Spring Boot application at runtime. As with many things, Spring Boot has built-in logging functionality that configures it for… Continue Reading spring-boot-changing-log-level-at-runtime
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