xstream实现xml与Object之间的自如转换

因为项目中用到xml交互数据，所以一时间想起了这个工具（XStream），于是琢磨了怎么使用。通过自已的一些编程经验及网络的强大，，最终轻松搞定。需要准备如下jar包（xstream-1.4.7.jar、xpp3_min-1.1.4c.jar、xmlpull-1.1.3.1.jar）

1. 编写对应实体

RootBean

@XStreamAlias(“root”){@XStreamAlias(“DocInfo”)private DocInfoBean docInfo;@XStreamAlias(“PAGES”)private List<PageBean> pages;//getter和setter…}DocInfoBean{@XStreamAlias(“APP_CODE”)private String appCode;@XStreamAlias(“APP_NAME”)private String appName;@XStreamAlias(“BUSI_NO”)private String busiNo;//getter和setter…}PageBean@XStreamAlias(“PAGE”){@XStreamAlias(“DOC_TYPE”)@XStreamAsAttributeprivate String docType;@XStreamAlias(“DOC_NAME”)@XStreamAsAttributeprivate String docName;@XStreamAlias(“PAGE_URL”)@XStreamAsAttributeprivate String pageUrl;@XStreamAlias(“PAGE_NAME”)@XStreamAsAttributeprivate String pageName;@XStreamAlias(“UP_USER”)@XStreamAsAttributeprivate String upUser;@XStreamAlias(“UP_ORG”)@XStreamAsAttributeprivate String upOrg;@XStreamAlias(“UP_TIME”)@XStreamAsAttributeprivate String upTime;//getter和setter…}

2. xml到对象

private RootBean getRootBean(File xmlFile) {InputStreamReader reader = null;try {reader = new InputStreamReader(new FileInputStream(busiXmlFile), “UTF-8”);} catch (Exception e) {e.printStackTrace();}XStream xStream=new XStream(new DomDriver(“UTF-8”, new XmlFriendlyNameCoder(“-_”, “_”)));xStream.alias(“root”, RootBean.class);xStream.autodetectAnnotations(true);return (RootBean) xStream.fromXML(reader);}

2. 对象到xml

public void testObj2XmlNew(){RootBean rootBean = new RootBean();DocInfoBean docInfo = new DocInfoBean();docInfo.setAppCode(“009”);docInfo.setAppName(“测试”);docInfo.setBusiNo(“12345a”);rootBean.setDocInfo(docInfo);List<PageBean> pages = new ArrayList<PageBean>();for(int i=0;i<3;i++){PageBean page = new PageBean();page.setDocName(“身份证”);page.setDocType(“010”);page.setPageName(“0000.jpg”);page.setPageUrl(“1111.jpg”);page.setUpOrg(“惠普”);page.setUpTime(“34543312321”);page.setUpUser(“12433124”);pages.add(page);}rootBean.setPages(pages);//解决了早期bug（”_”转化到xml时会变为”__”）//XStream xStream=new XStream(new DomDriver());XStream xStream=new XStream(new DomDriver(“UTF-8”, new XmlFriendlyNameCoder(“-_”, “_”)));xStream.alias(“root”, RootBean.class);xStream.autodetectAnnotations(true);String str= xStream.toXML(rootBean);System.out.println(str);}运行结果>009>12345a>===========>

要永不言弃坚持到底百折不挠宁死不屈，但我们好多人没想过，