dom4j解析xml字符串实例

//先加入dom4j.jar包 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; /** * @description 解析xml字符串 * @author Who Know * */ public class Test { 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 { 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); map.put("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); map.put("username", username); map.put("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); 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); } } }