JavaBean转换为XML的源码

package com.cmge.utils;

import java.util.Iterator;

import com.cmge.org.oa.bean.OADepartment;
import com.coast.foundation.utils.StringUtil;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.XmlFriendlyReplacer;
import com.thoughtworks.xstream.io.xml.XppDriver;

import java.util.HashMap;
import java.util.LinkedList;
import java.util.Map; 
import java.util.Iterator; 

/** 
* XML与JavaBean相互转换工具类 
* File: XMLBeanUtils.java 
 19
*/ 

public class XmlXStreamUtil { 
    private String version = "";
    private String xml = "";
    private LinkedList<String> addXml = new LinkedList<String>();
    public static XmlXStreamUtil Build(){        
        return new XmlXStreamUtil();
    }
    
    public XmlXStreamUtil xmlVersion(){
        version = "<?xml version=\"1.0\" encoding=\"utf-8\"?>";
        return this;
    }
    
    public XmlXStreamUtil xmlVersion(String version,String encoding){
        version = "<?xml version=\""+version+"\" encoding=\""+encoding+"\"?>";
        return this;
    }
    
    public XmlXStreamUtil XmlAdd(String v){
        addXml.push(v);
        return this;
    }
    
    public String toString(){
        StringBuffer sb = new StringBuffer();
        
        if(!StringUtil.isNull(version))
            sb.append(version);
        for(int i = 0; i < addXml.size(); i++){
            String v = addXml.get(i).toString();
            sb.append("<"+v+">").append("\n");                
        }
        //
        sb.append(xml);        
        //        
        for(int i = addXml.size()-1; i >= 0; i--){
            String v = addXml.get(i).toString();
            sb.append("\n</"+v+">");
        }
        return sb.toString();
    }
    
    
    public XmlXStreamUtil bean2xml(Class cls,String alias,Object bean){
        bean2xml(cls,alias,null,bean);
        return this;
    }
    
    public XmlXStreamUtil bean2xml(Class cls,String alias,String attribute,Object bean){
        XStream xstream = new XStream(
                new XppDriver(new XmlFriendlyReplacer("_-", "_"))); 
        xstream.alias(alias, cls);
        if(!StringUtil.isNull(attribute)){
            xstream.useAttributeFor( cls,attribute);
            xstream.autodetectAnnotations(true);
        }
        xml = xstream.toXML(bean);        
        return this;
    }
    
    
    /** 
     * 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 XmlXStreamUtil bean2xml(Map<String, Class> clazzMap, Object bean) { 
        XStream xstream = new XStream(
                new XppDriver(new XmlFriendlyReplacer("_-", "_"))); 
        
        for (Iterator it = clazzMap.entrySet().iterator(); it.hasNext();) { 
            Map.Entry<String, Class> m = (Map.Entry<String, Class>) it.next(); 
            System.out.println("key="+m.getKey()+",v="+m.getValue());
            xstream.alias(m.getKey(), m.getValue()); 
        }
        xml = xstream.toXML(bean); 
        System.out.println("xml=\n");
        return this; 
    } 

    /** 
     * 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 Object xml2Bean(Map<String, Class> clazzMap, String xml) { 
        XStream xstream = new XStream(
                new XppDriver(new XmlFriendlyReplacer("_-", "_"))); 
        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 XStream getXStreamObject(Map<String, Class> clazzMap) { 
        XStream xstream = new XStream(
                new XppDriver(new XmlFriendlyReplacer("_-", "_"))); 
        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; 
    } 
    
    
    public static void main(String [] args){
    
        
        OADepartment od = new OADepartment();
        
        od.setFullname("12312");
        od.setCode("123");
        od.setOrg_code("dd");
        od.setCanceled("");
        //XmlUtil.beanToXmlStr(OADepartment.class, "1", "2");
        Map<String,Class> map = new HashMap();
        map.put("org", OADepartment.class);
        String xml = XmlXStreamUtil.Build()
                     
                    //    .bean2xml(map, od)
                      .XmlAdd("root")
                      .XmlAdd("orglist")
                      .XmlAdd("ff")
                      .xmlVersion()
                       .bean2xml(OADepartment.class, "org","code", od)
                      .toString();
        
        System.out.println(xml);
        
        
        System.out.println("\n\n\n\n");
        String xml2 = XmlXStreamUtil.Build()
 
                   .bean2xml(OADepartment.class, "org", od)
                  .toString();
        System.out.println(xml2);
    }
}