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This Spring Boot application demonstrates how to prevent infinite recursion when fetching JPA entities. Using the H2 in-memory database, this project illustrates proper configuration and usage of Jackson annotations such as `@JsonManagedReference` and `@JsonBackReference` to manage bidirectional relationships and avoid serialization issues.

Java 98.11% Dockerfile 1.89%

springboot-json-infinite-recursion's Introduction

springboot-json-infinite-recursion

Features

Spring Boot: Simplifies the development process and provides a robust framework for building enterprise-level applications.
H2 Database: An in-memory database used for simplicity and ease of demonstration.
JPA/Hibernate: Manages the persistence layer and entity relationships.
Jackson Annotations: Handles JSON serialization and prevents infinite recursion with @JsonManagedReference and @JsonBackReference.

How to Run

Clone the repository:

git clone https://github.com/manasranjanmohanta/springboot-json-infinite-recursion.git

Navigate to the project directory:
```
cd springboot-json-infinite-recursion
```
Build and run the application:
```
./mvnw spring-boot:run
```
Access the application:
- The application will start on http://localhost:8080.
- Use the provided endpoints to interact with the entities and see how infinite recursion is prevented during JSON serialization.

Endpoints

/students: Fetch and create student entities.
/classes: Fetch and create class entities.

Technologies Used

Spring Boot
Spring Data JPA
H2 Database
Jackson

Example JSON Request

{
    "id": 2,
    "name": "prangya",
    "aClassEntity": {
        "id": 1
    }
}

You can check you persistent data at http://localhost:8080/h2-console

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manasranjanmohanta / springboot-json-infinite-recursion Goto Github PK