普通的XML结构比较简单，但是复杂的XML如下：
<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"> <soap12:Body> </soap12:Body> </soap12:Envelope
复杂点的原因是名称带有冒号，属性也是，没有操作过JAXB是不容易上手，我来记录下实体的代码。
soap12:Envelope节点的实体类：
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "", propOrder = {
"body"
})
@XmlRootElement(name = "soap12:Envelope")
public class SoapEnvelope {
@XmlElement(name = "soap12:Body")
private SoapBody body;
@XmlAttribute(name = "xmlns:xsi")
private String xmlnsXsi;
@XmlAttribute(name = "xmlns:xsd")
private String xmlnsXsd;
@XmlAttribute(name = "xmlns:soap12")
private String xmlnsSoap;
public SoapEnvelope() {
this.xmlnsXsi = "http://www.w3.org/2001/XMLSchema-instance";
this.xmlnsXsd = "http://www.w3.org/2001/XMLSchema";
this.xmlnsSoap = "http://www.w3.org/2003/05/soap-envelope";
}
public SoapBody getBody() {
return body;
}
public void setBody(SoapBody body) {
this.body = body;
}
}XmlRootElement表示的意思是根节点，通过name = "soap12:Envelope"指定根节点的名称。
根节点设置子节点的说明：
@XmlElement(name = "soap12:Body") private SoapBody body
这里意思soap12:Envelope下面还有1个节点叫soap12:Body
根节点设置属性和属性值的说明：
@XmlAttribute(name = "xmlns:xsi") private String xmlnsXsi
以上代码就是通过注解说明此根节点有个属性xmlns:xsi，此属性的值等于String xmlnsXsi的值，我们可以在构造函数中对属性值进行初始化
