XML报文转Map

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;




public class StringXmlToMap {

	/**
	 * @param args
	 * @throws JDOMException 
	 * @throws IOException 
	 */
	public static void main(String[] args) throws IOException,JDOMException {
		//待转化的String类型的xml报文
		String strxml="<xml>" +
							"<return_code>" +
								"<![CDATA[FAIL]]>" +
							"</return_code>" +
							"<return_msg>" +
							"	<![CDATA[appid不存在]]>" +
							"</return_msg>" +
						"</xml>";
		
		StringXmlToMap str=new StringXmlToMap();
		Map map=str.strXmlToMap(strxml);
		System.out.println(map.get("return_code"));
		

	}
	
	/**
	 * 将传入的 String 类型的XML报文转化为Map类型的对象
	 * @param strxml
	 * @return
	 * @throws IOException
	 * @throws JDOMException
	 */
	public Map strXmlToMap(String strxml) throws IOException,JDOMException{
		
		if(null == strxml || "".equals(strxml)) {
			return null;
		}
		
		Map m = new HashMap();
		InputStream in = new   ByteArrayInputStream(strxml.getBytes("UTF-8"));  
		SAXBuilder builder = new SAXBuilder();
		Document doc = builder.build(in);
		Element root = doc.getRootElement();
		List list = root.getChildren();
		Iterator it = list.iterator();
		while(it.hasNext()) {
			Element e = (Element) it.next();
			String k = e.getName();
			String v = "";
			List children = e.getChildren();
			if(children.isEmpty()) {
				v = e.getTextNormalize();
			} else {
				v = getChildrenText(children);
			}
			
			m.put(k,v);
		}
		
		//关闭流
		in.close();
		
		return m;
	}
	
	/**
	 * 获取子节点的Xml
	 * @param children
	 * @return
	 */
	public static String getChildrenText(List children) {
		StringBuffer sb = new StringBuffer();
		if(!children.isEmpty()) {
			Iterator it = children.iterator();
			while(it.hasNext()) {
				Element e = (Element) it.next();
				String name = e.getName();
				String value = e.getTextNormalize();
				List list = e.getChildren();
				sb.append("<" + name + ">");
				if(!list.isEmpty()) {
					sb.append(getChildrenText(list));
				}
				sb.append(value);
				sb.append("</" + name + ">");
			}
		}
		
		return sb.toString();
	}

}

（编辑：李大同）

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