xml 和 Java bean 互转实现类

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该文参考实现自 http://hbiao68.iteye.com/blog/1958413

这两天在实现websevice中服务方返回了xml结构的字符串，寻找了几个xml转bean的方法，结合自己的需要，整理实现个通用方法，做个记录

package com.meimport java.io.ByteArrayOutputStream;import java.io.StringReader;import javax.xml.bind.JAXBContext;  import javax.xml.bind.JAXBException;  import javax.xml.bind.Marshaller;  import javax.xml.bind.Unmarshaller; public class aaaa {/** * 将xml 转换为java bean * @param className * @param xmlStr * @return java bean * @throws ClassNotFoundException */private static Object xml2bean(String className,String xmlStr) throws ClassNotFoundException{try {              JAXBContext context = JAXBContext.newInstance(Class.forName(className));             Unmarshaller unmarshaller = context.createUnmarshaller();            StringReader rd =  new StringReader(xmlStr);               Object req = (Object)unmarshaller.unmarshal(rd);             return req;        } catch (JAXBException e) {              e.printStackTrace();            return null;        } }/** * 将java bean 转换为xml * @param className * @param bean * @return XmlString * @throws ClassNotFoundException */private static String bean2xml(String className,Object bean) throws ClassNotFoundException{try {ByteArrayOutputStream baos = new ByteArrayOutputStream();JAXBContext context = JAXBContext.newInstance(Class.forName(className));  Marshaller marshaller = context.createMarshaller();  marshaller.marshal(bean, baos);return baos.toString();        } catch (JAXBException e) {              e.printStackTrace();            return null;        } }//测试方法public static void main(String args[]) throws java.lang.Exception{//将xml 转换为java beanString xmlStr = "<?xml version=\"1.0\" encoding=\"utf-8\"?>   <nacaoRequest>        <userName>user</userName>        <passWord></passWord>        <caInfo></caInfo>        <interfaceInfo>            <code>01</code><jgdm></jgdm> <jgmc></jgmc>   <zjhm></zjhm>           </interfaceInfo></nacaoRequest>";                NacaoRequest req1 = (NacaoRequest)xml2bean(NacaoRequest.class.getName(),xmlStr);        System.out.println(req1.getUserName());        //将java bean 转换为xml        InterfaceInfo inf = new InterfaceInfo("02","03","04","05");

//注意：
//需要转换的NacaoRequest对象一定要添加@XmlRootElement注解，其里面的其他对象则不需要
//需要转换的NacaoRequest对象一定要有不带参数的构造方法，包括该对象里面引用的对象。

<span style="color: rgb(255, 0, 0); font-family: Helvetica, Tahoma, Arial, sans-serif; font-size: 14px; line-height: 25.2000007629395px;"></span>        NacaoRequest req2 =  new NacaoRequest();        req2.setUserName("user");        req2.setPassword("pwd");        req2.setCaInfo("ca");        req2.setInterfaceInfo(inf);                String a = bean2xml(NacaoRequest.class.getName(),req2);        System.out.println(a);}}

希望能起到抛砖引玉的效果。

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