Javaweb Dom4j解析XMl

package com.weisg.dom4j;

import java.io.File;

import java.io.FileOutputStream;

import java.io.OutputStream;

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;

import org.dom4j.io.OutputFormat;

import org.dom4j.io.SAXReader;

import org.dom4j.io.XMLWriter;

public class TestDom4j {

    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"));

            Element el_root = doc.getRootElement();//向外取数据，获取xml的根节点。

            Iterator it = el_root.elementIterator();//从根节点下依次遍历，获取根节点下所有子节点

            // 下面的是通过解析xml字符串的

            doc = DocumentHelper.parseText(xml); // 将字符串转为XML

            

            //OutputStream os = new FileOutputStream("d:/SqlMapConfig.xml");

            //XMLWriter writer = new XMLWriter(os,OutputFormat.createPrettyPrint());

            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

     */

    @SuppressWarnings("unchecked")

    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;

    }

    @SuppressWarnings("unchecked")

    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);

        }

    }

}