<?xml version="1.0" encoding="utf-8"?>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig">
asasas
</Signature>

这是请求的XML

@XmlRootElement(name = "Signature")
public class Signature {

    private String xmlns;
    private String text;

// getter setter

@XmlAttribute(name = "xmlns")
    public String getXmlns() {
        return xmlns;
    }

    public void setXmlns(String xmlns) {
        this.xmlns = xmlns;
    }

    @XmlValue
    public String getText() {
        return text;
    }

    public void setText(String text) {
        this.text = text;
    }

}

但是我得到了错误 ----------

请帮帮我。