Returning JAXB-generated elements from Spring Boot Controller

Question

I\'m generating a plethora of Java files from http://www.ncpdp.org\'s XSD files (only available to members). After generating them, I\'d like to use them in my Spring Contro

Answer 1

I was able to solve this by creating a bindings.xjb file in the same directory as my schemas. This causes JAXB to generate @XmlRootElement on classes.

<?xml version="1.0"?>
<jxb:bindings version="1.0"
              xmlns:xsd="http://www.w3.org/2001/XMLSchema"
              xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
              xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:schemaLocation="http://java.sun.com/xml/ns/jaxb http://java.sun.com/xml/ns/jaxb/bindingschema_2_0.xsd">

    <jxb:bindings schemaLocation="transport.xsd" node="/xsd:schema">
        <jxb:globalBindings>
            <xjc:simple/>
        </jxb:globalBindings>
    </jxb:bindings>
</jxb:bindings>

To add namespaces prefixes to the returned XML, I had to modify the maven-jaxb2-plugin to add a couple arguments.

<arg>-extension</arg>
<arg>-Xnamespace-prefix</arg>

And add a dependency:

<dependencies>
    <dependency>
        <groupId>org.jvnet.jaxb2_commons</groupId>
        <artifactId>jaxb2-namespace-prefix</artifactId>
        <version>1.1</version>
    </dependency>
</dependencies>

Then modify my bindings.xjb to include this:

<?xml version="1.0"?>
<jxb:bindings version="1.0"
              xmlns:xsd="http://www.w3.org/2001/XMLSchema"
              xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
              xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xmlns:namespace="http://jaxb2-commons.dev.java.net/namespace-prefix"
              xsi:schemaLocation="http://java.sun.com/xml/ns/jaxb http://java.sun.com/xml/ns/jaxb/bindingschema_2_0.xsd
              http://jaxb2-commons.dev.java.net/namespace-prefix http://java.net/projects/jaxb2-commons/sources/svn/content/namespace-prefix/trunk/src/main/resources/prefix-namespace-schema.xsd">

    <jxb:bindings schemaLocation="transport.xsd" node="/xsd:schema">
        <jxb:globalBindings>
            <xjc:simple/>
        </jxb:globalBindings>

        <jxb:schemaBindings>
            <jxb:package name="org.ncpdp.schema.transport"/>
        </jxb:schemaBindings>
        <jxb:bindings>
            <namespace:prefix name="transport"/>
        </jxb:bindings>
    </jxb:bindings>
</jxb:bindings>

I learned how to do this from https://java.net/projects/jaxb2-commons/pages/Namespace-prefix. I also found http://blog.frankel.ch/customize-your-jaxb-bindings to be a good resource on how to customize JAXB bindings.