27. JSON
Spring Boot provides integration with three JSON mapping libraries:
- Gson
- Jackson
- JSON-B
Jackson is the preferred and default library.
Auto-configuration for Jackson is provided and Jackson is part of spring-boot-starter-json
. When Jackson is on the classpath an ObjectMapper
bean is automatically configured. Several configuration properties are provided for customizing the configuration of the ObjectMapper
.
Auto-configuration for Gson is provided. When Gson is on the classpath a Gson
bean is automatically configured. Several spring.gson.*
configuration properties are provided for customizing the configuration. To take more control, one or more GsonBuilderCustomizer
beans can be used.