无法形成XML，使用不同的名称空间，但使用相同的名称空间值

Question

我想形成这种XML，但没有希望。

<soap:Envelope
    xmlns:soap="http://www.w3.zzz/2003/05/soap-envelope"
    xmlns:ns="http://abc.zzz/1234">
    <soap:Body>
        <ns:RequestSecurityToken xmlns:trust="http://abc.zzz/1234">
            <trust:KeyType>foo</trust:KeyType>
            <trust:RequestType>bar</trust:RequestType>
            <trust:TokenType>foo2</trust:TokenType>
        </ns:RequestSecurityToken>
    </soap:Body>
</soap:Envelope>

请帮忙，我目前在下课中的输出是这个...

<soap:Envelope
    xmlns:soap="http://www.w3.zzz/2003/05/soap-envelope"
    xmlns:ns="http://abc.zzz/1234">
    <soap:Body>
        <ns:RequestSecurityToken>
            <ns:KeyType>foo</trust:KeyType>
            <ns:RequestType>bar</trust:RequestType>
            <ns:TokenType>foo2</trust:TokenType>
        </ns:RequestSecurityToken>
    </soap:Body>
</soap:Envelope>

Envelop.class

@Root(name = "soap:Envelop")
@NamespaceList({
        @Namespace(prefix = "soap", reference = "http://www.w3.zzz/2003/05/soap-envelope"),
        @Namespace(prefix = "ns", reference = "http://abc.zzz/1234")
public class Envelop {

    @Namespace(reference = "http://www.w3.zzz/2003/05/soap-envelope")
    @Element(name = "Body")
    private Body body;

   // Getter & Setter
}

Body.class

@Root(name = "soap:Body")
public class Body {

    @Element(name = "ns:RequestSecurityToken")
    @Namespace(prefix = "trust", reference = "http://abc.zzz/1234")
    private SecurityToken securityToken;

    // Getter & Setter
}

SecurityToken.class

@Root(name = "ns:RequestSecurityToken")
public class SecurityToken {

    @Element(name = "KeyType")
    @Namespace(prefix = "trust", reference = "http://abc.zzz/1234")
    private String keyType;

    @Element(name = "RequestType)
    @Namespace(prefix = "trust", reference = "http://abc.zzz/1234")
    private String requestType;

    @Element(name = "TokenType")
    @Namespace(prefix = "trust", reference = "http://abc.zzz/1234")
    private String tokenType;

}

谢谢。