java dom4j 解析xml字符串的操作实例

package test;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;

/**   
* @Title: TestDom4j.java
* @Package 
* @Description: 解析xml字符串
* @author 无处不在
* @date 2012-11-20 下午05:14:05
* @version V1.0   
*/
public class ParseDataUtil {

  public void readStringXml(String xml) {
      Document doc = null;
      try {

          // 读取并解析XML文档
          // SAXReader就是一个管道，用一个流的方式，把xml文件读出来
          // 																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																			
          // SAXReader reader = new SAXReader(); //User.hbm.xml表示你要解析的xml文档
          // Document document = reader.read(new File("User.hbm.xml"));
          // 下面的是通过解析xml字符串的
          doc = DocumentHelper.parseText(xml); // 将字符串转为XML
          																												
          Element rootElt = doc.getRootElement(); // 获取根节点
          System.out.println("根节点：" + rootElt.getName()); // 拿到根节点的名称

          Iterator iter = rootElt.elementIterator("head"); // 获取根节点下的子节点head

          // 遍历head节点
          while (iter.hasNext()) {

              Element recordEle = (Element) iter.next();
              String title = recordEle.elementTextTrim("title"); // 拿到head节点下的子节点title值
              System.out.println("title:" + title);

              Iterator iters = recordEle.elementIterator("script"); // 获取子节点head下的子节点script

              // 遍历Header节点下的Response节点
              while (iters.hasNext()) {

                  Element itemEle = (Element) iters.next();

                  String username = itemEle.elementTextTrim("username"); // 拿到head下的子节点script下的字节点username的值
                  String password = itemEle.elementTextTrim("password");

                  System.out.println("username:" + username);
                  System.out.println("password:" + password);
              }
          }
          Iterator iterss = rootElt.elementIterator("body"); ///获取根节点下的子节点body
          // 遍历body节点
          while (iterss.hasNext()) {

              Element recordEless = (Element) iterss.next();
              String result = recordEless.elementTextTrim("result"); // 拿到body节点下的子节点result值
              System.out.println("result:" + result);

              Iterator itersElIterator = recordEless.elementIterator("form"); // 获取子节点body下的子节点form
              // 遍历Header节点下的Response节点
              while (itersElIterator.hasNext()) {

                  Element itemEle = (Element) itersElIterator.next();

                  String banlce = itemEle.elementTextTrim("banlce"); // 拿到body下的子节点form下的字节点banlce的值
                  String subID = itemEle.elementTextTrim("subID");

                  System.out.println("banlce:" + banlce);
                  System.out.println("subID:" + subID);
              }
          }
      } catch (DocumentException e) {
          e.printStackTrace();

      } catch (Exception e) {
          e.printStackTrace();

      }
  }

  /**
   * @description 将xml字符串转换成map
   * @param xml
   * @return Map
   */
  public static Map readStringXmlOut(String xml) {
      Map map = new HashMap();
      Document doc = null;
      try {
          // 将字符串转为XML
          doc = DocumentHelper.parseText(xml); 
          // 获取根节点
          Element rootElt = doc.getRootElement(); 
          // 拿到根节点的名称
          System.out.println("根节点：" + rootElt.getName()); 

          // 获取根节点下的子节点head
          Iterator iter = rootElt.elementIterator("head"); 
          // 遍历head节点
          while (iter.hasNext()) {

              Element recordEle = (Element) iter.next();
              // 拿到head节点下的子节点title值
              String title = recordEle.elementTextTrim("title"); 
              System.out.println("title:" + title);
              map.put("title", title);
              // 获取子节点head下的子节点script
              Iterator iters = recordEle.elementIterator("script"); 
              // 遍历Header节点下的Response节点
              while (iters.hasNext()) {
                  Element itemEle = (Element) iters.next();
                  // 拿到head下的子节点script下的字节点username的值
                  String username = itemEle.elementTextTrim("username"); 
                  String password = itemEle.elementTextTrim("password");

                  System.out.println("username:" + username);
                  System.out.println("password:" + password);
                  map.put("username", username);
                  map.put("password", password);
              }
          }

          //获取根节点下的子节点body
          Iterator iterss = rootElt.elementIterator("body"); 
          // 遍历body节点
          while (iterss.hasNext()) {
              Element recordEless = (Element) iterss.next();
              // 拿到body节点下的子节点result值
              String result = recordEless.elementTextTrim("result"); 
              System.out.println("result:" + result);
              // 获取子节点body下的子节点form
              Iterator itersElIterator = recordEless.elementIterator("form"); 
              // 遍历Header节点下的Response节点
              while (itersElIterator.hasNext()) {
                  Element itemEle = (Element) itersElIterator.next();
                  // 拿到body下的子节点form下的字节点banlce的值
                  String banlce = itemEle.elementTextTrim("banlce"); 
                  String subID = itemEle.elementTextTrim("subID");

                  System.out.println("banlce:" + banlce);
                  System.out.println("subID:" + subID);
                  map.put("result", result);
                  map.put("banlce", banlce);
                  map.put("subID", subID);
              }
          }
      } catch (DocumentException e) {
          e.printStackTrace();
      } catch (Exception e) {
          e.printStackTrace();
      }
      return map;
  }

  public static void main(String[] args) {

      // 下面是需要解析的xml字符串例子
      String xmlString = 
  "" + 
	  "" + 
		  ""+ 
		  "" + 
	  ""+ 
	  "" + 
		  "0" + 
		  "
" + 
			  "1000" + 
			  "36242519880716"+ 
		  "
" + 
	  "" + 
  "";

      /*
       * Test2 test = new Test2(); test.readStringXml(xmlString);
       */
      Map map = readStringXmlOut(xmlString);
      Iterator iters = map.keySet().iterator();
      while (iters.hasNext()) {
          String key = iters.next().toString(); // 拿到键
          String val = map.get(key).toString(); // 拿到值
          System.out.println(key + "=" + val);
      }
  }

}