About JAXB:
1.JAXB is able to use Jackson's support implementation for JAXB annotations (jackson-module-jaxb-annotations), which facilitates the generation of XML and facilitates the generation of JSON, which can better flag Java classes that can be converted to JSON objects. JAXB allows Java people to map Java classes to XML representations, common annotations include: @XmlRootElement, @XmlElement, and so on.
2.JAXB (Java Architecture for XML Binding) is an industry standard that is a technology that can produce Java classes based on XML schemas. In this process, JAXB also provides a way to reverse-generate the Java object tree from the XML instance document, and can re-write the contents of the Java object tree to the XML instance document. On the other hand, JAXB provides a quick and easy way to bind XML schemas to Java representations, making it easy for Java developers to combine XML data and processing functions in Java applications.
JAXB implements conversion between Java objects and XML