JAXB 对象与xml映射
导入jaxb所需要的jar文件。注意如果你是jdk1.6的话，不要用jwsdp2.0，2.0支持jdk1.5.
首先定义xsd文件。
players.xsd
<?xml version="1.0" encoding="UTF-8"?><xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"elementFormDefault="qualified" attributeFormDefault="unqualified"><xs:element name="club" type="Club" /><xs:complexType name="Club"><xs:sequence><xs:element name="name" type="xs:string" /><xs:element name="createdDate" type="xs:date" /><xs:element name="coach" type="xs:string" /><xs:element name="players" minOccurs="1" maxOccurs="unbounded"><xs:complexType><xs:sequence><xs:element name="name" type="xs:string" /><xs:element name="position" type="xs:string" /><xs:element name="country" type="xs:string" /><xs:element name="num" type="xs:string" /><xs:element name="description" type="xs:string" /></xs:sequence></xs:complexType></xs:element></xs:sequence></xs:complexType></xs:schema>
?定义xjb文件 playersbinding.xjb
<jxb:bindings version="1.0" xmlns:jxb="http://java.sun.com/xml/ns/jaxb" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <jxb:bindings schemaLocation="players.xsd" node="/xs:schema"><!-- schemaLocation属性是xsd文件的相对路径 --> <jxb:globalBindings fixedAttributeAsConstantProperty="true" collectionType="java.util.ArrayList" typesafeEnumBase="xs:NCName" choiceContentProperty="false" typesafeEnumMemberName="generateError" enableFailFastCheck="false" generateIsSetMethod="false" underscoreBinding="asCharInWord"/> <jxb:schemaBindings> <jxb:package name="com.zhuyang.mapping.object"/> <!-- 这里是生成的JAVA类文件存放包名 --> <jxb:nameXmlTransform> <jxb:elementName suffix="Element"/></jxb:nameXmlTransform> </jxb:schemaBindings> <!-- 这里是定义xsd中一个复合类型与Java类的映射（如果要修改才定义，不修改则不需要） --> <jxb:bindings node="//xs:complexType[@name='Club']"> <jxb:class name="Club"/> </jxb:bindings> </jxb:bindings></jxb:bindings>
?最后ant脚本用来生成java对象
playersbuild.xml
<project basedir="." default="run"><!--这里是jwsdp的安装目录 --><property name="jwsdp.home" value="C:\axis2\Sun\jwsdp-2.0" /><!--这里是log4j的安装目录 --><property name="log4j.home" value="C:\axis2\o-x-mapping\o-x-mapping\implement\lib" /><path id="xjc.classpath"><pathelement path="src" /><pathelement path="bin" /><pathelement path="lib" /><pathelement path="schemas" /><!--for use with bundled ant--><fileset dir="${jwsdp.home}" includes="jaxb/lib/*.jar" /><fileset dir="${jwsdp.home}" includes="sjsxp/lib/*.jar" /><fileset dir="${jwsdp.home}" includes="jwsdp-shared/lib/activation.jar" /><fileset dir="${jwsdp.home}" includes="jwsdp-shared/lib/resolver.jar" /><fileset dir="${log4j.home}" includes="log4j-1.2.5.jar" /></path><taskdef name="xjc" classname="com.sun.tools.xjc.XJCTask"><classpath refid="xjc.classpath" /></taskdef><!--compile Java source files--><target name="compile" description="Compile all Java source files"><echo message="Compiling the schema..." /><!-- mkdir dir="src" /--><xjc schema="players.xsd" binding="playersbinding.xjb" destdir="src" /><echo message="Compiling the java source files..." /><mkdir dir="bin" /><javac destdir="bin" debug="on"><src path="src" /><classpath refid="xjc.classpath" /></javac></target><target name="run" depends="compile" description="Run the sample app"><echo message="Running the sample application..." /><java classname="com.zhuyang.mapping.object.Test" fork="true"><classpath refid="xjc.classpath" /></java></target></project>?Test.java
package com.zhuyang.mapping.object;import java.util.GregorianCalendar;import java.util.List;import javax.xml.bind.JAXBContext;import javax.xml.bind.JAXBElement;import javax.xml.bind.JAXBException;import javax.xml.bind.Marshaller;import javax.xml.datatype.DatatypeConfigurationException;import javax.xml.datatype.DatatypeFactory;import javax.xml.datatype.XMLGregorianCalendar;public class Test {/** * @param args * @throws JAXBException */public static void object2xml() throws JAXBException {JAXBContext jaxbContent = JAXBContext.newInstance("com.zhuyang.mapping.object");Club.Players players1 = new Club.Players();players1.setCountry("巴西");players1.setName("罗纳尔多");players1.setNum("9");players1.setPosition("中锋");players1.setDescription("外星人");Club.Players players2 = new Club.Players();players2.setCountry("中国");players2.setName("李毅");players2.setNum("14");players2.setDescription("带球像亨利");players2.setPosition("中锋");Club.Players players3 = new Club.Players();players3.setCountry("英格兰");players3.setName("欧文");players3.setNum("10");players3.setDescription("金童");players3.setPosition("中锋");Club.Players players4 = new Club.Players();players4.setCountry("威尔士");players4.setName("贝尔");players4.setNum("3");players4.setPosition("右后卫");players4.setDescription("速度变态"); Club c = new Club();List<Club.Players> players=c.getPlayers();players.add(players1);players.add(players2);players.add(players3);players.add(players4);c.setCoach("Mario");c.setCreatedDate(getDate());c.players=players;c.setName("Real Madrid");JAXBElement<Club> element = (new ObjectFactory()).createClub(c);Marshaller marshaller = jaxbContent.createMarshaller();marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);marshaller.setProperty("jaxb.encoding", "utf-8");marshaller.marshal(element, System.out);}public static void main(String[] args) {// TODO Auto-generated method stubtry {object2xml();System.out.println(System.getProperty("user.dir"));} catch (JAXBException e) {// TODO Auto-generated catch blocke.printStackTrace();}}private static XMLGregorianCalendar getDate() {try {return DatatypeFactory.newInstance().newXMLGregorianCalendar(new GregorianCalendar(2011,2,20) {});} catch (DatatypeConfigurationException e) {throw new Error(e);}}}??