1 import java.io.File; 2 import java.io.IOException; 3 import java.util.Iterator; 4 import java.util.List; 5 import org.jdom.Document; 6 import org.jdom.Element; 7 import org.jdom.JDOMException; 8 import org.jdom.input.SAXBuilder; 9 public class JdomReadXml {10  /**11   * @param args12   */13  public static void main(String[] args) {14   /**15    * <?xml version="1.0" encoding="UTF-8"?> <actions m="001"><action16    * path="/test" class="com.mystruts.demo.LoginAction"><forward17    * name="success" url="test.jsp" /><forward name="failure"18    * url="failure.jsp" /></action><action path="/user"19    * class="com.mystruts.demo.UserAction"><forward name="success"20    * url="test.jsp" /><forward name="failure" url="failure.jsp" /></action></actions>21    */22   SAXBuilder sax = new SAXBuilder();23   Document doc;24   try {25    try {26     doc = sax.build(new File("mystruts.xml"));27     Element root = doc.getRootElement();28     List actions = root.getChildren();29     // 遍历获取根节点下的一级子节点，并作为入参传入递归方法30     for (Iterator i = actions.iterator(); i.hasNext();) {31      Element action = (Element) i.next();32      System.out.println(action.getAttributeValue("path"));33      System.out.println(action.getAttributeValue("class"));34      List forwards = action.getChildren();35      for (Iterator j = forwards.iterator(); j.hasNext();) {36       Element forward = (Element) j.next();37       System.out.println(forward.getAttributeValue("name"));38       System.out.println(forward.getAttributeValue("url"));39      }40     }41    } catch (IOException e) {42     // TODO Auto-generated catch block43     e.printStackTrace();44    }45   } catch (JDOMException e) {46    e.printStackTrace();47   }48  }49 }

import java.io.File;import java.io.FileWriter;import org.jdom.Attribute;import org.jdom.Document;import org.jdom.Element;import org.jdom.input.SAXBuilder;import org.jdom.output.XMLOutputter;public class JdomWriteXml { /**  * @param args  */ public static void main(String[] args) {  SAXBuilder sb = new SAXBuilder();  Element actions = new Element("actions");  Document document = new Document(actions);  Element action1 = new Element("action");  actions.addContent(action1);  Attribute path_atbt1 = new Attribute("path", "/test");  Attribute class_atbt1 = new Attribute("class",    "com.mystruts.demo.LoginAction");  action1.setAttribute(path_atbt1);  action1.setAttribute(class_atbt1);  Element action1_forward1 = new Element("forward");  action1.addContent(action1_forward1);  Attribute action1_forward1_name_atbt1 = new Attribute("name", "success");  Attribute action1_forward1_url_atbt1 = new Attribute("url", "test.jsp");  action1_forward1.setAttribute(action1_forward1_name_atbt1);  action1_forward1.setAttribute(action1_forward1_url_atbt1);  Element action1_forward2 = new Element("forward");  action1.addContent(action1_forward2);  Attribute action1_forward1_name_atbt2 = new Attribute("name", "failure");  Attribute action1_forward1_url_atbt2 = new Attribute("url",    "failure.jsp");  action1_forward2.setAttribute(action1_forward1_name_atbt2);  action1_forward2.setAttribute(action1_forward1_url_atbt2);  Element action2 = new Element("action");  actions.addContent(action2);  Attribute path_atbt2 = new Attribute("path", "/user");  Attribute class_atbt2 = new Attribute("class",    "com.mystruts.demo.UserAction");  action2.setAttribute(path_atbt2);  action2.setAttribute(class_atbt2);  Element action2_forward1 = new Element("forward");  action2.addContent(action2_forward1);  Attribute action2_forward1_name_atbt1 = new Attribute("name", "success");  Attribute action2_forward1_url_atbt1 = new Attribute("url", "test.jsp");  action2_forward1.setAttribute(action2_forward1_name_atbt1);  action2_forward1.setAttribute(action2_forward1_url_atbt1);  Element action2_forward2 = new Element("forward");  action2.addContent(action2_forward2);  Attribute action2_forward1_name_atbt2 = new Attribute("name", "failure");  Attribute action2_forward1_url_atbt2 = new Attribute("url",    "failure.jsp");  action2_forward2.setAttribute(action2_forward1_name_atbt2);  action2_forward2.setAttribute(action2_forward1_url_atbt2);  Attribute root_atbt1 = new Attribute("m", "001");  actions.setAttribute(root_atbt1);  try {   File f1 = new File("mystruts.xml");   // XMLOutputter xo=new XMLOutputter(" ",true,"GB2312");   XMLOutputter xo = new XMLOutputter();   FileWriter fw = new FileWriter(f1);   xo.output(document, fw);   fw.close();  } catch (Exception e) {   e.printStackTrace();  }  // System.out.println(document.toString()); }}

import java.io.File;import java.util.List;import org.dom4j.Document;import org.dom4j.DocumentException;import org.dom4j.Element;import org.dom4j.io.SAXReader;public class Dm4jReadXml { /**  * @param args  */ public static void main(String[] args) {  // dom4j读xml,解析xml  /**   * <?xml version="1.0" encoding="UTF-8"?> <actions><action path="/test"   * class="com.mystruts.demo.LoginAction"><forward name="success"   * url="hello.jsp"/><forward name="fail" url="fail.jsp"/></action><action   * path="/user" class="com.mystruts.demo.UserAction"><forward   * name="success" url="list.jsp"/><forward name="fail" url="fail.jsp"/></action></actions>   */  SAXReader saxReader = new SAXReader();  try {   Document document = saxReader.read(new File("d://mystruts.xml"));   Element root = document.getRootElement();   List actions = root.elements("action");   for (int i = 0; i < actions.size(); i++) {    Element action = (Element) actions.get(i);    System.out.println("action.path=="      + action.attributeValue("path"));    System.out.println("action.class=="      + action.attributeValue("class"));    List forwards = action.elements("forward");    for (int j = 0; j < forwards.size(); j++) {     Element forward = (Element) forwards.get(j);     System.out.println("forward.name=="       + forward.attributeValue("name"));     System.out.println("forward.url=="       + forward.attributeValue("url"));    }   }  } catch (DocumentException e) {   // TODO Auto-generated catch block   e.printStackTrace();  } }}

import java.io.File;import java.io.FileWriter;import org.dom4j.Document;import org.dom4j.DocumentHelper;import org.dom4j.Element;import org.dom4j.io.XMLWriter;public class DOM4j { public static void main(String[] args) {  // dom4j解析xml测试  // 1. dom4j写xml  /*   * <?xml version="1.0" encoding="UTF-8"?> <actions> <action path="/test"   * class="com.mystruts.demo.LoginAction"> <forward name="success"   * url="hello.jsp"/> <forward name="fail" url="fail.jsp"/> </action>   * <action path="/user" class="com.mystruts.demo.UserAction"> <forward   * name="success" url="list.jsp"/> <forward name="fail" url="fail.jsp"/>   * </action> </actions>   */  Document document = DocumentHelper.createDocument();  Element actionsElement = document.addElement("actions");  Element actionElement1 = actionsElement.addElement("action");  actionElement1.addAttribute("path", "/test");  actionElement1.addAttribute("class", "com.mystruts.demo.LoginAction");  Element forwardElement1 = actionElement1.addElement("forward");  forwardElement1.addAttribute("name", "success");  forwardElement1.addAttribute("url", "hello.jsp");  Element forwardElement2 = actionElement1.addElement("forward");  forwardElement2.addAttribute("name", "fail");  forwardElement2.addAttribute("url", "fail.jsp");  Element actionElement2 = actionsElement.addElement("action");  actionElement2.addAttribute("path", "/user");  actionElement2.addAttribute("class", "com.mystruts.demo.UserAction");  Element forwardElement21 = actionElement2.addElement("forward");  forwardElement21.addAttribute("name", "success");  forwardElement21.addAttribute("url", "list.jsp");  Element forwardElement22 = actionElement2.addElement("forward");  forwardElement22.addAttribute("name", "fail");  forwardElement22.addAttribute("url", "fail.jsp");  try {   /** 将document中的内容写入文件中 */   XMLWriter writer = new XMLWriter(new FileWriter(new File(     "d://mystruts.xml")));   writer.write(document);   writer.close();   /** 执行成功,需返回1 */  } catch (Exception ex) {   ex.printStackTrace();  }  System.out.println(document.asXML()); }}