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Get Log Output in JSON 1. Introduction Most Java logging libraries today offer different layout options for formatting logs – to accurately fit the needs of each project. In this quick article, we want to format and output our log entries as JSON. We’ll see how to do this for… Continue Reading java-log-json-output
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JSON Processing in Java EE 7 1. Overview This article will show you how to process JSON using only core Java EE, without the use of third-party dependencies like Jersey or Jackson. Pretty much everything we’ll be using is provided by the javax.json package. 2. Writing an Object to JSON… Continue Reading jee7-json
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Introduction to JSON Schema in Java 1. Overview JSON Schema is a declarative language for validating the format and structure of a JSON Object. It allows us to specify the number of special primitives to describe exactly what a valid JSON Object will look like. The JSON Schema specification is… Continue Reading introduction-to-json-schema-in-java
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Deserialize Immutable Objects with Jackson 1. Overview In this quick tutorial, we’ll show two different ways of deserializing immutable Java objects with the Jackson JSON processing library. 2. Why Do We Use Immutable Objects? An immutable object is an object that keeps its state intact since the very moment of… Continue Reading jackson-deserialize-immutable-objects
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Introduction to JsonPath 1. Overview One of the advantages of XML is the availability of processing – including XPath – which is defined as a W3C standard. For JSON, a similar tool called JSONPath has emerged. This article will give an introduction to Jayway JsonPath, a Java implementation of the… Continue Reading guide-to-jayway-jsonpath
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Inheritance with Jackson 1. Overview In this article, we’ll have a look at working with class hierarchies in Jackson. Two typical use cases are the inclusion of subtype metadata and ignoring properties inherited from superclasses. We’re going to describe those two scenarios and a couple of circumstances where special treatment… Continue Reading jackson-inheritance
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Working with Tree Model Nodes in Jackson 1. Overview This tutorial will focus on working with tree model nodes in Jackson. We’ll use JsonNode for various conversions as well as adding, modifying and removing nodes. 2. Creating a Node The first step in creation of a node is to instantiate… Continue Reading jackson-json-node-tree-model
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Introduction to the JSON Binding API (JSR 367) in Java Java EE JSON 1. Overview For a long time, there was no standard for JSON processing in Java. The most common libraries used for JSON processing are Jackson and Gson. Recently, Java EE7 came with an API for parsing and… Continue Reading java-json-binding-api
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Introduction to JSONassert 1. Overview In this article, we’ll have a look at the JSONAssert library – a library focused on understanding JSON data and writing complex JUnit tests using that data. 2. Maven Dependency First, let’s add the Maven dependency: <dependency> <groupId>org.skyscreamer</groupId> <artifactId>jsonassert</artifactId> <version>1.5.0</version> </dependency> Please check out the… Continue Reading jsonassert
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Jackson – Bidirectional Relationships 1. Overview In this tutorial, we’ll go over the best ways to deal with bidirectional relationships in Jackson. We’ll discuss the Jackson JSON infinite recursion problem, then – we’ll see how to serialize entities with bidirectional relationships and finally – we will deserialize them. 2. Infinite… Continue Reading jackson-bidirectional-relationships-and-infinite-recursion
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