import java.util.Iterator; import java.io.BufferedReader; import java.io.File; import java.io.IOException; import java.io.InputStreamReader; import java.net.MalformedURLException; import org.dom4j.*; import org.dom4j.io.SAXReader; public class XmlRead {     static StringBuilder sBuilder = new StringBuilder();     public static void main(String[] args) throws IOException {         BufferedReader bReader = new BufferedReader(new InputStreamReader(                 System.in));         String path = null;         System.out.println("请输入XML文件的绝对路径以及文件名:\n");         path = bReader.readLine();         sBuilder.append("开始输出XML文件内容\n");         Document document = null;         try {             document = read(path);             sBuilder.append(path + "\n");         } catch (MalformedURLException e) {             e.printStackTrace();         } catch (DocumentException e) {             e.printStackTrace();         }         Element root = getRootElement(document);         if (root == null) {             System.out.print("没有获取到root节点");             return;         }         // 获取XML文档的编码格式         String encString = document.getXMLEncoding();         sBuilder.append("<?xml version=\"1.0\" encoding=\"" + encString                 + "\">\n");         sBuilder.append(elementText(root, attText(root), 0));         System.out.println(getIterator(root, 0) + "</" + root.getName() + ">");     }     /**      * 递归节点      *      * @description      * @param element      * @param lvl      *            层级      * @return      */     private static String getIterator(Element element, int lvl) {         lvl += 1;         for (Iterator i = element.elementIterator(); i.hasNext();) {             Element e = (Element) i.next();             sBuilder.append(elementText(e, attText(e), lvl));             getIterator(e, lvl);             int count = e.nodeCount();             if (count > 0) {                 for (int j = 0; j < lvl; j++) {                     sBuilder.append("    ");                 }             }             sBuilder.append("</" + e.getName() + ">\n");         }         return sBuilder.toString();     }     /**      * 获取当前节点的属性的值的字符串      *      * @description      * @param element      *            当前节点      * @return      */     private static String attText(Element element) {         String str = " ";         for (int i = 0; i < element.attributeCount(); i++) {             Attribute attribute = element.attribute(i);             str += attribute.getName() + "=\"" + attribute.getValue() + "\" ";         }         return str;     }     /**      * 获取当前Element的文本值      *      * @description      * @param element      *            当前Element节点      * @param text      *            属性值      * @param lvl      *            层级      * @return      */     private static String elementText(Element element, String text, int lvl) {         String str = "";         for (int i = 0; i < lvl; i++) {             str += "    ";         }         str += "<" + element.getName();         if (text != null && text != "") {             str += text;         } 　　　　　//由于dom4j里面没有 hasChild这个属性或者方法，所以要用nodeCount()这个方法来判断时候还有子节点         int count = element.nodeCount();         if (count == 0) {             return str += ">";         }         return str += ">\n";     }     /**      *      * @description 读取XML文件      * @param file      *            XML文件路径，包含文件名      * @return Document 文档      * @throws MalformedURLException      * @throws DocumentException      */     public static Document read(String file) throws MalformedURLException,             DocumentException {         SAXReader reader = new SAXReader();         Document document = reader.read(new File(file));         return document;     }     /**      * 获取Document文档的root节点      *      * @param document      * @return      */     public static Element getRootElement(Document document) {         return document.getRootElement();     } }