<foo value1="a" value2="b">value3</foo>

@XmlType(propOrder = {"value3"}, name = "foo")
@XmlAccessorType(XmlAccessType.FIELD)
public class Foo
{
    @XmlAttribute
    private String value1;

    @XmlAttribute
    private String value2;

    @XmlElement(name = "")
    private String value3;
}

@XmlAccessorType(XmlAccessType.FIELD)
public class Foo
{
    @XmlAttribute
    private String value1;

    @XmlAttribute
    private String value2;

    @XmlValue
    private String value3;
}

If a class has @XmlElement property, it cannot have @XmlValue property

@XmlRootElement(name="priceInclVat")
@XmlAccessorType(XmlAccessType.FIELD)
public class PriceInclVatInfo {

        @XmlAttribute
        private String currency;
        @XmlValue
        private String currencyCode;

}

<currencyCode plaintext="£">GBP</currencyCode>