JAXB xml轉java對象/java轉xml,JAXB xml物件建構

    //xml轉換成bean    public static RequestXML parseToBean(String xmlstr)  {          RequestXML requestXml = null;          try {              JAXBContext jaxbContext = JAXBContext.newInstance(RequestXML.class);              Unmarshaller um = jaxbContext.createUnmarshaller();              requestXml = (RequestXML)um.unmarshal(new ByteArrayInputStream(xmlstr.getBytes()));          } catch (JAXBException e) {              e.getMessage();          }          return requestXml;      }    //bean 轉換成 xml    private static String parseToXml(Object javaBean) throws Exception{        JAXBContext context = JAXBContext.newInstance(xmlBean.getClass());        Marshaller m = context.createMarshaller();                StringWriter sw = new StringWriter();        m.marshal(javaBean,sw);                return sw.toString();    }

JAXB 結構：

xml example:

<?xml version="1.0" encoding="utf-8"?><bean id="10" code="xm1000x">    <name>x.m<name>        <levels>        <level key="1">none</level>        <level key="2">nothing</level>    </levels>        <extras>        <extra>            <type>1</type>            <content>xx.mm.xx</content>        </extra>        <extra>            <type>2</type>            <content>xx.mm.xx</content>        </extra>    </extras>    </bean>        

java bean:

import java.util.ArrayList;import java.util.List;import javax.xml.bind.annotation.XmlAttribute;import javax.xml.bind.annotation.XmlElement;import javax.xml.bind.annotation.XmlElementWrapper;import javax.xml.bind.annotation.XmlRootElement;@XmlRootElement(name="bean")public class Bean {private Integer id;private String code;private String name;private List<Level> levels = new ArrayList<Level>();private List<Extra> extras = new ArrayList<Extra>();public Bean(){}@XmlAttributepublic Integer getId() {return id;}@XmlAttributepublic String getCode() {return code;}@XmlElementpublic String getName() {return name;}@XmlElementWrapper(name="levels")@XmlElement(name="level")public List<Level> getLevels() {return levels;}@XmlElementWrapper(name="extras")@XmlElement(name="extra")public List<Extra> getExtras() {return extras;}public void setId(Integer id) {this.id = id;}public void setCode(String code) {this.code = code;}public void setName(String name) {this.name = name;}public void setLevels(List<Level> levels) {this.levels = levels;}public void setExtras(List<Extra> extras) {this.extras = extras;}}

 　　

import javax.xml.bind.annotation.XmlAttribute;import javax.xml.bind.annotation.XmlRootElement;import javax.xml.bind.annotation.XmlValue;@XmlRootElementpublic class Level {        private Integer Key;    private String value;        public Level(){}        @XmlAttribute(name="key")    public Integer getKey() {        return Key;    }    @XmlValue    public String getValue() {        return value;    }    public void setKey(Integer key) {        Key = key;    }    public void setValue(String value) {        this.value = value;    }        }

import javax.xml.bind.annotation.XmlElement;import javax.xml.bind.annotation.XmlRootElement;@XmlRootElementpublic class Extra {    private String type;    private String content;        public Extra(){}    @XmlElement    public String getType() {        return type;    }    @XmlElement    public String getContent() {        return content;    }    public void setType(String type) {        this.type = type;    }    public void setContent(String content) {        this.content = content;    }        }