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 stub try { object2xml(); System.out.println(System.getProperty("user.dir")); } catch (JAXBException e) { // TODO Auto-generated catch block e.printStackTrace(); } } private static XMLGregorianCalendar getDate() { try { return DatatypeFactory.newInstance().newXMLGregorianCalendar( new GregorianCalendar(2011,2,20) { }); } catch (DatatypeConfigurationException e) { throw new Error(e); } } }