1.类

@XmlRootElement(name = "CorpBindReq")
public class CorpBindReq {
    @XmlElement(name = "HEAD")
    private CorpBindReqHead corpBindReqHead;
    @XmlElement(name = "BODY")
    private String body;
    @XmlTransient
    public CorpBindReqHead getCorpBindReqHead() {
        return corpBindReqHead;
    }

    public void setCorpBindReqHead(CorpBindReqHead corpBindReqHead) {
        this.corpBindReqHead = corpBindReqHead;
    }
    @XmlTransient
    public String getBody() {
        return body;
    }

    public void setBody(String body) {
        this.body = body;
    }
}

@XmlRootElement(name = "HEAD")
public class CorpBindReqHead {
    @XmlElement(name = "CODE")
    private String code;
    @XmlElement(name = "SID")
    private String sid;
    @XmlElement(name = "TIMESTAMP")
    private String timestamp;
    @XmlElement(name = "SERVICEID")
    private String serviceId;
    @XmlElement(name = "ORDERID")
    private String orderId;
    @XmlTransient
    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }
    @XmlTransient
    public String getSid() {
        return sid;
    }

    public void setSid(String sid) {
        this.sid = sid;
    }
    @XmlTransient
    public String getTimestamp() {
        return timestamp;
    }

    public void setTimestamp(String timestamp) {
        this.timestamp = timestamp;
    }
    @XmlTransient
    public String getServiceId() {
        return serviceId;
    }

    public void setServiceId(String serviceId) {
        this.serviceId = serviceId;
    }
    @XmlTransient
    public String getOrderId() {
        return orderId;
    }

    public void setOrderId(String orderId) {
        this.orderId = orderId;
    }
}

2.方法

        //xmlStr转成javaBean
        JAXBContext context = JAXBContext.newInstance(CorpBindReq.class);
        Unmarshaller unmarshaller = context.createUnmarshaller();
        StringReader sr = new StringReader(ecSubSptStr);
        CorpBindReq corpBindReq = (CorpBindReq) unmarshaller.unmarshal(sr);


        //bean转xml
        String respBodyXml = ObjectConvertXmlCapUtil.beanToXml(corpBindRspBody, "GBK");
        respBodyXml = StringEscapeUtils.unescapeXml(respBodyXml); //将&lt; &gt;  替换成<>及空格