Kotlin – Convert Object to/from JSON with Jackson 2.x

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Kotlin – Convert Object to/from JSON with Jackson 2.x

This tutorial shows you how to use Jackson 2.x to convert Kotlin object to/from JSON.

I. Technology

• Java 1.8
• Kotlin 1.1.2
• Maven 3.5.1

  II. Overview

  1. Goal

  Convert JSON string/JSON file/JSON url to Person(name:String,age:Int,messages:List) Kotlin Object, then convert Person object to JSON string/JSON file.

  2. Steps to do

• add Dependency:

  <dependency>
  <groupId>org.jetbrains.kotlin</groupId>
  <artifactId>kotlin-stdlib</artifactId>
  <version>1.1.2</version>
  </dependency>

<dependency>
<groupId>com.fasterxml.jackson.module</groupId>
<artifactId>jackson-module-kotlin</artifactId>
<version>2.8.8</version>
</dependency>

• import com.fasterxml.jackson.module.kotlin.*
• use ObjectMapper instance:

More at:

https://grokonez.com/kotlin/kotlin-convert-object-tofrom-json-jackson-2-xin – Convert Object to/from JSON with Jackson 2.x