需要完成的内容是，使用java生成下面这种格式的XML

<soapenv:Envelope   xmlns:soapenv=";   xmlns:con=";>   <soapenv:Header/>   <soapenv:Body>      <con:ConnectionDeviceDeviation>              <con:x>123.738416194836</con:x>         <con:y>31.5165519232721</con:y>      </con:ConnectionDeviceDeviation >   </soapenv:Body></soapenv:Envelope>

使用的类库：JAXB

定义包描述，这样采用JAXB生成的时候，它会将定义的namespaceURI与prefix匹配上。

package-info.java

@XmlSchema(  elementFormDefault= XmlNsForm.QUALIFIED,  xmlns={  @XmlNs(prefix="soapenv", namespaceURI=";),  @XmlNs(prefix="con", namespaceURI=";)  })import javax.xml.bind.annotation.XmlNs;import javax.xml.bind.annotation.XmlNsForm;import javax.xml.bind.annotation.XmlSchema;

放置一个空类在与package-info.java平级处，这样继承这个类的子类可以同样使用包名名。

Envelope.java

import com.sun.xml.bind.marshaller.NamespacePrefixMapper;import javax.xml.bind.JAXBContext;import javax.xml.bind.JAXBException;import javax.xml.bind.Marshaller;import javax.xml.bind.PropertyException;import javax.xml.bind.annotation.*;public class Envelope {}

开发中实现自身业务的XML java类

EnvelopeRequest.java

import com.jb.adev.util.ws.xml.JaxbXmlUtil;import com.jb.adev.util.ws.xml.request.Envelope;import javax.xml.bind.JAXBException;import javax.xml.bind.annotation.XmlElement;import javax.xml.bind.annotation.XmlElementWrapper;import javax.xml.bind.annotation.XmlRootElement;import javax.xml.bind.annotation.XmlType;import java.util.ArrayList;import java.util.List;@XmlRootElement(namespace=";, name = "Envelope")@XmlType(propOrder = {"header", "body"})public class EnvelopeRequest extends Envelope {    private List<ConnectionDeviceDeviation> body = new ArrayList<>();    private String header = "";    @XmlElementWrapper(namespace=";, name = "Body")    @XmlElement(namespace=";, name = "ConnectionDeviceDeviation")    public List<ConnectionDeviceDeviation> getBody() {        return body;    }    public void setBody(ConnectionDeviceDeviation wcd) {        this.body.add(wcd);    }    @XmlElement(namespace=";, name = "Header")    public String getHeader() {        return header;    }    public void setHeader(String header) {        this.header = header;    }   }

业务自身的传参类

ConnectionDeviceDeviation.java

import javax.xml.bind.annotation.XmlElement;public class ConnectionDeviceDeviation {        private String x;    private String y;        @XmlElement(namespace=";, name = "x")    public String getX() {        return x;    }    @XmlElement(namespace=";, name = "y")    public String getY() {        return y;    }        public void setX(String x) {        this.x = x;    }    public void setY(String y) {        this.y = y;    }}

测试

public static void main(String[] args) throws JAXBException {    JAXBContext ctx = JAXBContext.newInstance(EnvelopeRequest.class);    EnvelopeRequest root = new EnvelopeRequest();    ConnectionDeviceDeviation dev = new ConnectionDeviceDeviation();    dev.setUserId("1");    dev.setWlgOid("1");    dev.setX("123");    dev.setY("456");    root.setBody(dev);    Marshaller m = ctx.createMarshaller();    m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);    m.marshal(root, System.out);}

运行结果