spring boot jackson infinite recursion

To resolve the issue of infinite recursion with Spring Boot and Jackson, follow these steps:

  1. Identify the infinite recursion: This issue occurs when objects reference each other in a cyclic manner. For example, if Object A has a reference to Object B, and Object B has a reference back to Object A, Jackson will encounter an infinite loop when serializing or deserializing these objects.

  2. Use Jackson annotations: Jackson provides annotations to handle this issue. One such annotation is @JsonIgnore, which can be used to annotate the reference in one of the objects to break the infinite loop. This annotation tells Jackson to ignore the annotated property during serialization and deserialization.

  3. Annotate the reference: Identify the reference that causes the infinite recursion and annotate it with @JsonIgnore. For example, if Object A has a reference to Object B, annotate the reference in Object A with @JsonIgnore.

  4. Enable Jackson annotations: By default, Spring Boot uses Jackson as the JSON serializer and deserializer. To enable the usage of Jackson annotations, make sure you have the necessary dependencies in your project's build configuration file (e.g., pom.xml for Maven projects or build.gradle for Gradle projects).

  5. Test the serialization and deserialization: After applying the @JsonIgnore annotation, test the serialization and deserialization of the objects. The infinite recursion issue should be resolved, and the objects should be serialized and deserialized successfully.

By following these steps, you can address the problem of infinite recursion when using Spring Boot and Jackson. It's important to identify the specific references causing the issue and apply the @JsonIgnore annotation accordingly.