xml与bean转换

1. XStream类实现转换

import com.thoughtworks.xstream.XStream;

import java.util.Map;
import java.util.Iterator;

/**
* XML与JavaBean相互转换工具类
* File: XMLBeanUtils.java
* User: leizhimin
* Date: 2008-3-5 14:28:29
*/
public final class XMLBeanUtils {
    /**
     * 将Bean转换为XML
     *
     * @param clazzMap 别名-类名映射Map
     * @param bean     要转换为xml的bean对象
     * @return XML字符串
     */
    public static String bean2xml(Map<String, Class> clazzMap, Object bean) {
        XStream xstream = new XStream();
        for (Iterator it = clazzMap.entrySet().iterator(); it.hasNext();) {
            Map.Entry<String, Class> m = (Map.Entry<String, Class>) it.next();
            xstream.alias(m.getKey(), m.getValue());
        }
        String xml = xstream.toXML(bean);
        return xml;
    }

    /**
     * 将XML转换为Bean
     *
     * @param clazzMap 别名-类名映射Map
     * @param xml      要转换为bean对象的xml字符串
     * @return Java Bean对象
     */
    public static Object xml2Bean(Map<String, Class> clazzMap, String xml) {
        XStream xstream = new XStream();
        for (Iterator it = clazzMap.entrySet().iterator(); it.hasNext();) {
            Map.Entry<String, Class> m = (Map.Entry<String, Class>) it.next();
            xstream.alias(m.getKey(), m.getValue());
        }
        Object bean = xstream.fromXML(xml);
        return bean;
    }

    /**
     * 获取XStream对象
     *
     * @param clazzMap 别名-类名映射Map
     * @return XStream对象
     */
    public static XStream getXStreamObject(Map<String, Class> clazzMap) {
        XStream xstream = new XStream();
        for (Iterator it = clazzMap.entrySet().iterator(); it.hasNext();) {
            Map.Entry<String, Class> m = (Map.Entry<String, Class>) it.next();
            xstream.alias(m.getKey(), m.getValue());
        }
        return xstream;
    }
}


import com.thoughtworks.xstream.XStream;

import java.util.Map;
import java.util.HashMap;

/**
* Created by IntelliJ IDEA.
* File: XStreamFactory.java
* User: leizhimin
* Date: 2008-3-6 15:36:13
*/
public class XStreamFactory {

    /**
     * 获取????的XStream对象
     *
     * @return XStream对象
     */
    public static XStream getXXXStream() {
        Map<String, Class> cm = new HashMap<String, Class>();
        cm.put("test", org.xxx.Test.class);
        cm.put("ssss", org.xxx.s.Ssss.class);
        return XMLBeanUtils.getXStreamObject(cm);
    }
}

2. castor,jaxb,digester

都可以实现类似功能 具体哪个更好没有分析。