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 =   "<html>" +   "<head>" +   "<title>dom4j解析一个例子</title>"+   "<script>" +   "<username>yangrong</username>"+   "<password>123456</password>" +   "</script>" +   "</head>"+   "<body>" +   "<result>0</result>" +   "<form>" +   "<banlce>1000</banlce>" +   "<subID>36242519880716</subID>"+   "</form>" +   "</body>" +   "</html>";      /*       * 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);      }  }}