Convert JSON To Java Object in Spring Boot

The most common issue a person faces when he has a JSON like the one mentioned below:

{
	   "name":"DHRUV SAHU",
	   "Employee":{
	      "department":"Operations",
	      "Salary":"$1Mn",
	      "designation":"COO"
	   },
	   "Management":[
	      {
	         "team":"01",
	         "Name":"Finance"
	      },
	      {
	         "team":"02",
	         "Name":"Operations"
	      }
	   ]
	
}        

and Convert this into a Java Object to store and Perform CRUD operations.

Thus, In this article, we'll take a look at?unmarshalling the JSON data achieved using POST mapping and Storing it into our JAVA object. The backend framework used during the whole course of the process is Spring Boot.

To guys who are interested in watching the video please have a look below:

Github Repository:

**Prerequisites

1. Java 8 must be installed into our system.

2. Eclipse must be installed into our system.

Let's get started with the steps:

Preparing the Java Application

Import the Maven project available in the Github Repository with the name "json-SpringBoot"

After importing the project to the eclipse the Project Structure appears to be:

Brief Overview Of Application Code

First, have a look at the "application.properties" available inside the folder "/src/main/resources"

Secondly, have a look at "JsonToJavaObjectApplicationController" this is a controller defined for posting the data into our Spring Boot Application. The Application Code for the Controller is mentioned as follows :

Lastly, We have to Define tree POJO's,i.e, Java Classes for inserting the data archived after POST operation. The Significance of using three POJO beans is that the main bean "JsonToJavaObjectApplicationBean" overlaps the Other two Child beans "Employee" and "Management" the detailed description of the Beans are provided in the video .

Thus, here we competed for our Overview of Application code. Now, it's time to test our application by running it.

Launching the Application

Right-click the project and select "Run As > Spring Boot Application"

Now, when the Application Starts throng to Postman and hit the application URI with "POST" providing the body in the body section.

The "200" response code signifies that we have successfully completed the "POST" operation.

the desired output is printed in the Application Console :

Learn more about Spring Boot by reading the documentation provided below:

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