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Spring / Spring7 basics Interview questions

What are the types of HTTP message converters in Spring?

HttpMessageConverter implementations translate between Java objects and HTTP request/response bodies, choosing a converter based on content type and target Java type.

ConverterHandles
MappingJackson2HttpMessageConverterJSON via Jackson
StringHttpMessageConverterPlain text bodies
FormHttpMessageConverterURL-encoded form data
MultipartHttpMessageConverterMultipart payloads (dedicated converter as of Spring 7.1)
ResourceHttpMessageConverterRaw byte/resource content, such as file downloads

Spring auto-registers a sensible default list, and you can add or replace converters through WebMvcConfigurer#extendMessageConverters when a project needs a custom format.

Which converter handles JSON bodies via Jackson?
Where can you customize or add HttpMessageConverters?

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