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 […]
Month: July 2021
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 […]
Jackson vs Gson
1. Introduction In this article, we’ll compare the Gson and Jackson APIs for serializing and deserializing JSON data to Java objects and vice-versa. Gson and Jackson are complete libraries […]
Jackson Unmarshalling JSON with Unknown Properties
1. Overview In this article, we’re going to take a look at the unmarshalling process with Jackson 2.x – specifically at how to deal with JSON […]
Using Optional with Jackson
1. Introduction In this article, we’ll give an overview of the Optional class, and then explain some problems that we might run into when using it with […]
Jackson – Marshall String to JsonNode
1. Overview This quick tutorial will show how to use Jackson 2 to convert a JSON String to a JsonNode (com.fasterxml.jackson.databind.JsonNode). If you want to dig deeper and […]
XML Serialization and Deserialization with Jackson
1. Overview In this tutorial, we’re going to look at how to serialize Java objects to XML data using Jackson 2.x and deserialize it back to […]
Jackson – Change Name of Field
1. Overview This quick tutorial illustrates how to change the name of a field to map to another JSON property on serialization. If you want to dig […]
Ignore Null Fields with Jackson
1. Overview This quick tutorial is going to cover how to set up Jackson to ignore null fields when serializing a java class. If we want to […]
Jackson Ignore Properties on Marshalling
1. Overview This tutorial will show how to ignore certain fields when serializing an object to JSON using Jackson 2.x. This is very useful when the Jackson […]
Intro to the Jackson ObjectMapper
1. Overview This tutorial focuses on understanding the Jackson ObjectMapper class and how to serialize Java objects into JSON and deserialize JSON string into Java objects. To […]
Jackson Annotation Examples
1. Overview In this tutorial, we’ll do a deep dive into Jackson Annotations. We’ll see how to use the existing annotations, how to create custom ones, […]
