使用XStream进行XML与对象的互相转换 下划线问题

使用XStream进行XML与对象的互相转换

  近来遇到的编程过程中需要对XML进行大量的处理,java是面向对象的,所以要把XML的处理转化为面向对象的处理.下面记录下我用XStream进行XML与对象的转换过程.

  public class XmlUtils {
private static XStream xstream;

  static {
 xstream = new XStream(new DomDriver("UTF-8", new XmlFriendlyNameCoder("-_", "_")));

  }

  /**
* XML to object.

* @param inputXml
*      XML string.
* @param types
*      annotation classes.
* @return
* @throws Exception
*/
public static Object xml2Object(String inputXml, Class< >[] types) throws Exception {

  if (null == inputXml || "".equals(inputXml)) {
  return null;
 }
 xstream.processAnnotations(types);
 return xstream.fromXML(inputXml);

  }

  /**
* object to XML.

* @param ro
*      Object.
* @param types
*      annotation classes.
* @return
* @throws Exception
*/
public static String object2Xml(Object ro, Class< >[] types) throws Exception {
 if (null == ro) {
  return null;
 }
 xstream.processAnnotations(types);

  return xstream.toXML(ro);
}
}
对生成xml中__替换_的最新写法是:xstream = new XStream(new DomDriver("UTF-8", new XmlFriendlyNameCoder("-_", "_")));

  网上很多用这种XStream xstream = new XStream(new XppDriver(new XmlFriendlyReplacer("-_", "_")));

  帮助文档上明确写明

  /**
   * @since 1.2
   * @deprecated As of 1.4, use {@link #DomDriver(String, NameCoder)} instead.
   */

  说明1.4已经废弃了这种做法.

  处理过程中都用了annotations来处理对象,下面是其中一个对象的例子

  import com.thoughtworks.xstream.annotations.XStreamAlias;

  @XStreamAlias("RESULT")
public class ResultObject {
@XStreamAlias("RTNCODE")
private String rtncode;

  @XStreamAlias("MESSAGE")
private String message;

  @XStreamAlias("CONTENT")
private Content content;
...省略了get, set方法

  下面是使用XmlUtils 的测试例子

  try {
  Class< >[] types = new Class[] { ResultObject.class, Content.class};
  resultXml = XmlUtils.object2Xml(ro, types);//其中ro是要转换的对象
  System.out.println(resultXml);
 } catch (Exception e) {
  System.out.println(e.getMessage());
  e.printStackTrace();
 }

  //下面是转换xml成对象的测试代码
  InputObject io = (InputObject) XmlUtils.xml2Object(str, new Class[] { InputObject.class });

  其中str是xml格式字符串.

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