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How to Get the Body of Request in Spring Boot?

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  • Last Updated : 10 Nov, 2021
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Java language is one of the most popular languages among all programming languages. There are several advantages of using the java programming language, whether for security purposes or building large distribution projects. One of the advantages of using JAVA is that Java tries to connect every concept in the language to the real world with the help of the concepts of classes, inheritance, polymorphism, etc.

There are several other concepts present in java that increase the user-friendly interaction between the java code and the programmer such as generic, Access specifiers, Annotations, etc these features add an extra property to the class as well as the method of the java program. In this article, we will discuss how to get the body of the incoming request in the spring boot.

@RequestBody: Annotation is used to get request body in the incoming request.

Note: First we need to establish the spring application in our project.

Spring Initializr is a web-based tool using which we can easily generate the structure of the Spring Boot project. It also provides various different features for the projects expressed in a metadata model. This model allows us to configure the list of dependencies that are supported by JVM. Here, we will create the structure of an application using a spring initializer and then use an IDE to create a sample GET route. Therefore, to do this, the following steps are followed sequentially as follows:

Step 1: Go to Spring Initializr

Fill in the details as per the requirements. For this application:

Project: Maven
Language: Java
Spring Boot: 2.2.8
Packaging: JAR
Java: 8
Dependencies: Spring Web      

Step 2: Click on Generate which will download the starter project.

Step 3: Extract the zip file. Now open a suitable IDE and then go to File->New->Project from existing sources->Spring-boot-app and select pom.xml. Click on import changes on prompt and wait for the project to sync.

Note: In the Import Project for Maven window, make sure you choose the same version of JDK which you selected while creating the project.

Step 4: Go to src -> main -> java -> and create a java class with the name Controller and add the annotation @RestController. Now create a GET API as shown below as follows:

Example 1:

// Class
public class Person {

    // Attributes of Person
    int id;
    String name;
    int age;

    // Constructor of this class
    public Person(int id, String name, int age) {

        // this keyword refers to current instance object = id; = name;
        this.age = age;

    // Method of Person class
    // toString() method
    public String toString() {

        // Simply returning the name and age of person
        return id + " " + name + " " + age;

Example 2:


// Class
public class Controller {


       void getBody(@RequestBody Person ob) {

              // Print and display the person object

This application is now ready to run. Run the SpringBootAppApplication class and wait for the Tomcat server to start.

Note: The default port of the Tomcat server is 8080 and can be changed in the file.

Step 5: Now go to the Postman and add URL address and make get request

Output: Lastly output will be generated on terminal/CMD below as follows: 

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