How to use spring to marshal and unmarshal xml?

Question

I have a spring boot project. I have a few xsds in my project. I have generated the classes using maven-jaxb2-plugin. I have used this tutorial to get a sample spring boot a

Answer 1

Spring BOOT is very smart and it can understand what you need with a little help.

To make XML marshalling/unmarshalling work you simply need to add annotations @XmlRootElement to class and @XmlElement to fields without getter and target class will be serialized/deserialized automatically.

Here is the DTO example

package com.exmaple;

import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import lombok.ToString;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import java.io.Serializable;
import java.util.Date;
import java.util.Random;

@AllArgsConstructor
@NoArgsConstructor
@ToString
@Setter
@XmlRootElement
public class Contact implements Serializable {
    @XmlElement
    private Long id;

    @XmlElement
    private int version;

    @Getter private String firstName;

    @XmlElement
    private String lastName;

    @XmlElement
    private Date birthDate;

    public static Contact randomContact() {
        Random random = new Random();
        return new Contact(random.nextLong(), random.nextInt(), "name-" + random.nextLong(), "surname-" + random.nextLong(), new Date());
    }
}

And the Controller:

package com.exmaple;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@RequestMapping(value="/contact")
public class ContactController {
    final Logger logger = LoggerFactory.getLogger(ContactController.class);

    @RequestMapping("/random")
    @ResponseBody
    public Contact randomContact() {
        return Contact.randomContact();
    }

    @RequestMapping(value = "/edit", method = RequestMethod.POST)
    @ResponseBody
    public Contact editContact(@RequestBody Contact contact) {
        logger.info("Received contact: {}", contact);
        contact.setFirstName(contact.getFirstName() + "-EDITED");
        return contact;
    }
}

You can check-out full code example here: https://github.com/sergpank/spring-boot-xml

Any questions are welcome.