Spring Boot: Customize the Jackson ObjectMapper
1. Overview When using JSON format, Spring Boot will use an ObjectMapper instance to serialize responses and deserialize requests. In this tutorial, we’ll take a look at […]
Jackson
Mapping a Dynamic JSON Object with Jackson
1. Introduction Working with predefined JSON data structures with Jackson is straightforward. However, sometimes we need to handle dynamic JSON objects, which have unknown properties. In […]
Guide to @JsonFormat in Jackson
1. Overview In this article, we try to understand how to use @JsonFormat in Jackson. It is a Jackson annotation that is used to specify how to […]
Mapping Nested Values with Jackson
1. Overview A typical use case when working with JSON is to perform a transformation from one model into another. For example, we might want […]
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 […]
More Jackson Annotations
1. Overview This article covers some additional annotations that were not covered in the previous article, A Guide to Jackson Annotations – we will go through seven […]
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. […]
Jackson – Decide What Fields Get Serialized/Deserialized
1. Overview In this article we’ll explore the various ways we can control if a field is serialized / deserialized by Jackson or not. 2. A Public […]
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, […]
Compare Two JSON Objects with Jackson
1. Overview In this article, we’ll have a look at comparing two JSON objects using Jackson – a JSON processing library for Java. 2. Maven Dependency First, […]
Getting Started with Custom Deserialization in Jackson
1. Overview This quick tutorial will illustrate how to use Jackson 2 to deserialize JSON using a custom Deserializer. If you want to dig deeper and […]
Jackson – Unmarshall to Collection/Array
1. Overview This tutorial will show how to deserialize a JSON Array to a Java Array or Collection with Jackson 2. If you want to dig […]
Convert XML to JSON Using Jackson
1. Overview In this tutorial, we’ll see how to convert an XML message to JSON using Jackson. For readers new to Jackson, consider getting familiar […]
Jackson Exceptions – Problems and Solutions
1. Overview In this tutorial, we’ll go over the most common Jackson Exceptions – the JsonMappingException and UnrecognizedPropertyException. Finally – we’ll briefly discuss Jackson no such method errors. 2. “JsonMappingException: […]
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 […]
Jackson Date
1. Overview In this tutorial, we’ll serialize dates with Jackson. We’ll start by serializing a simple java.util.Date, then Joda-Time, and finally, the Java 8 DateTime. 2. […]
Jackson – JsonMappingException (No serializer found for class)
1. Overview In this quick tutorial, we will analyze the marshalling of entities with no getters and the solution for the Jackson JsonMappingException exception. If you want to […]
How To Serialize and Deserialize Enums with Jackson
1. Overview This quick tutorial will show how to control the way Java Enums are serialized and deserialized with Jackson 2. To dig a little deeper […]
Serialize Only Fields that meet a Custom Criteria with Jackson
1. Overview This tutorial is going to illustrate how we can use Jackson to only serialize a field if it meets a specific, custom criteria. For […]
Map Serialization and Deserialization with Jackson
1. Overview In this article, we’ll look at serialization and deserialization of Java maps using Jackson. We’ll illustrate how to serialize and deserialize Map<String, String>, Map<Object, String>, and Map<Object, Object> to and […]
