Convert POJO to JSON and vice-versa using Jackson API

In this tutorial, we will learn how to convert POJO into a JSON & JSON back into POJO using java based Jackson-databind API. The ObjectMapper class provided by Jackson API provides functionality for converting between Java Objects and JSON. 

ObjectMapper_JacksonAPI_Signature_Java8_Techndeck

 

Maven dependencies

If you are using Maven as a build tool in your project, then add the following dependency in your pom.xml file.

else, download & add the following Jars into your project classpath:

  • jackson-core
  • jackson-databind
  • jackson-annotation

Convert POJO to JSON and vice versa using Jackson API...!!! Click To Tweet

Example 1. POJO to JSON conversion

Output:

 

Example 2. JSON to POJO conversion

Output:

Convert POJO to JSON and vice versa using Jackson API...!!! Click To Tweet

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