对象生成xml

你肯定想过，给你一个对象就生成对应的xml格式文件，这里就是一个。

CreateXMLUtils

package common;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.Node;
import org.dom4j.Text;

/**
 * 生成XML的工具类
 *@date Dec 23, 200910:04:38 AM
 *@author zhangjp
 *@param
 */
public class CreateXMLUtil {
 
 /**
  * 对普通的list进行生成XML
  * @param list
  * @param UID  是否把serialVersionUID也些在XML中
  * @returnCreateXMLUtil.java  
  */
 public static String getClassXML(List<?> list,boolean UID){
  try {
   if (list == null || list.size() == 0) {
    return null;
   }
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement("kedou");
   for (int i = 0; i < list.size(); i++) {
    String className = list.get(i).getClass().getName();
    String name = className.substring(className.lastIndexOf('.')+1);
    Element element = root.addElement(name);
       Field[] fields = list.get(i).getClass().getDeclaredFields();
         
    for (int j = 0; j < fields.length; j++) {
     fields[j].setAccessible(true);
     if(fields[j].get(list.get(i))==null){
      continue;
     }
     String objValue = fields[j].get(list.get(i)).toString();
     String fieldName = fields[j].toString().substring(fields[j].toString().lastIndexOf('.')+1);
     
     if("serialVersionUID".equals(fieldName)){
      if(UID==false){
       continue;
      }
     }
     
     element.addAttribute(fieldName,objValue);
    

     // HttpServletResponse response =
     // ServletActionContext.getResponse();
     // PrintWriter out = response.getWriter();
     // response.setContentType("text/xml;charset=utf-8");
     // response.setHeader("Cache-Control", "no-cache");
     // out.print(document.asXML());
     
    }
    
    
   }
                return document.asXML();
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  return null;
 }
 
 
 /**
  * 对普通的list进行生成XML 生成XMLrootNode为<kedou>
  * @param list
  * @returnCreateXMLUtil.java
  */
 public static String getClassXML(List<?> list ){
  try {
   if (list == null || list.size() == 0) {
    return null;
   }
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement("kedou");
   for (int i = 0; i < list.size(); i++) {
    String className = list.get(i).getClass().getName();
    String name = className.substring(className.lastIndexOf('.')+1);
    Element element = root.addElement(name);
       Field[] fields = list.get(i).getClass().getDeclaredFields();
  
    for (int j = 0; j < fields.length; j++) {
     fields[j].setAccessible(true);
     if(fields[j].get(list.get(i))==null){
      continue;
     }
     String objValue = fields[j].get(list.get(i)).toString();
     String fieldName = fields[j].toString().substring(fields[j].toString().lastIndexOf('.')+1);
     if("serialVersionUID".equals(fieldName)){
       continue; 
     }else{
      element.addAttribute(fieldName,objValue);
        }

     // HttpServletResponse response =
     // ServletActionContext.getResponse();
     // PrintWriter out = response.getWriter();
     // response.setContentType("text/xml;charset=utf-8");
     // response.setHeader("Cache-Control", "no-cache");
     // out.print(document.asXML());
     
    }
    
    
   }
                return document.asXML();
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  return null;
 }
 
 /**
  * 对普通的list进行生成XML
  * @param list
  * @param rootName 根节点名称
  * @returnCreateXMLUtil.java
  */
 public static String getClassXML(List<?> list ,String rootName){
  try {
   if (list == null || list.size() == 0) {
    return null;
   }
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement(rootName);
   for (int i = 0; i < list.size(); i++) {
    String className = list.get(i).getClass().getName();
    String name = className.substring(className.lastIndexOf('.')+1);
    Element element = root.addElement(name);
       Field[] fields = list.get(i).getClass().getDeclaredFields();
  
    for (int j = 0; j < fields.length; j++) {
     fields[j].setAccessible(true);
     if(fields[j].get(list.get(i))==null){
      continue;
     }
     String objValue = fields[j].get(list.get(i)).toString();
     String fieldName = fields[j].toString().substring(fields[j].toString().lastIndexOf('.')+1);
     if("serialVersionUID".equals(fieldName)){
       continue; 
     }else{
      //以下为两种风格输出XML
      //element.addAttribute(fieldName,objValue);
      Element ele = element.addElement(fieldName);
      ele.addText(objValue);
      
        }

     // HttpServletResponse response =
     // ServletActionContext.getResponse();
     // PrintWriter out = response.getWriter();
     // response.setContentType("text/xml;charset=utf-8");
     // response.setHeader("Cache-Control", "no-cache");
     // out.print(document.asXML());
     
    }
    
    
   }
                return document.asXML();
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  return null;
 }
 
 /**
  * 对普通的list进行生成XML
  * @param list
  * @param rootName 根节点名称
  * @returnCreateXMLUtil.java
  */
 public static String getClassXML(List<?> list ,String rootName ,boolean UID){
  try {
   if (list == null || list.size() == 0) {
    return null;
   }
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement(rootName);
   for (int i = 0; i < list.size(); i++) {
    String className = list.get(i).getClass().getName();
    String name = className.substring(className.lastIndexOf('.')+1);
    Element element = root.addElement(name);
       Field[] fields = list.get(i).getClass().getDeclaredFields();
  
    for (int j = 0; j < fields.length; j++) {
     fields[j].setAccessible(true);
     if(fields[j].get(list.get(i))==null){
      continue;
     }
     String objValue = fields[j].get(list.get(i)).toString();
     String fieldName = fields[j].toString().substring(fields[j].toString().lastIndexOf('.')+1);
     if("serialVersionUID".equals(fieldName)){
       if(UID==false){
        continue; 
       } 
     }else{
      element.addAttribute(fieldName,objValue);
        }

     // HttpServletResponse response =
     // ServletActionContext.getResponse();
     // PrintWriter out = response.getWriter();
     // response.setContentType("text/xml;charset=utf-8");
     // response.setHeader("Cache-Control", "no-cache");
     // out.print(document.asXML());
     
    }
    
    
   }
                return document.asXML();
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  return null;
 }
 
 /**
  * 对一般的pojo进行生成相对应得xml
  * @param obj
  * @param UID  是否把serialVersionUID也些在XML中
  * @returnCreateXMLUtil.java
  */
 public static String  getClassXML(Object obj,boolean UID){
  try {
   if (obj == null) {
    return null;
   }
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement("kedou");
    String className = obj.getClass().getName();
    String name = className.substring(className.lastIndexOf('.')+1);
    Element element = root.addElement(name);
       Field[] fields = obj.getClass().getDeclaredFields();
  
    for (int j = 0; j < fields.length; j++) {
     fields[j].setAccessible(true);
     if(fields[j].get(obj)==null){
      continue;
     }
     String objValue = fields[j].get(obj).toString();
     String fieldName = fields[j].toString().substring(fields[j].toString().lastIndexOf('.')+1);
     if("serialVersionUID".equals(fieldName)){
      if(UID==false){
       continue;
      }
     }
     element.addAttribute(fieldName,objValue);

     // HttpServletResponse response =
     // ServletActionContext.getResponse();
     // PrintWriter out = response.getWriter();
     // response.setContentType("text/xml;charset=utf-8");
     // response.setHeader("Cache-Control", "no-cache");
     // out.print(document.asXML());
     
    }
    
   return document.asXML();
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  return null;
 }
 
 
 /**
  * 对一般的pojo进行生成相对应得xml
  * @param obj
  * @param rootName 根节点名称
  * @param UID  是否把serialVersionUID也写在XML中
  * @returnCreateXMLUtil.java
  */
 public static String  getClassXML(Object obj,String rootName,boolean UID){
  try {
   if (obj == null) {
    return null;
   }
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement(rootName);
    String className = obj.getClass().getName();
    String name = className.substring(className.lastIndexOf('.')+1);
    Element element = root.addElement(name);
       Field[] fields = obj.getClass().getDeclaredFields();
  
    for (int j = 0; j < fields.length; j++) {
     fields[j].setAccessible(true);
     if(fields[j].get(obj)==null){
      continue;
     }
     String objValue = fields[j].get(obj).toString();
     String fieldName = fields[j].toString().substring(fields[j].toString().lastIndexOf('.')+1);
     if("serialVersionUID".equals(fieldName)){
      if(UID==false){
       continue;
      }
     }
     Element ele = element.addElement(fieldName);
     ele.addText(objValue);
     // HttpServletResponse response =
     // ServletActionContext.getResponse();
     // PrintWriter out = response.getWriter();
     // response.setContentType("text/xml;charset=utf-8");
     // response.setHeader("Cache-Control", "no-cache");
     // out.print(document.asXML());
     
    }
    
   return document.asXML();
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  return null;
 }
 public static String  getClassXML(Object obj){
  try {
   if (obj == null) {
    return null;
   }
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement("kedou");
    String className = obj.getClass().getName();
    String name = className.substring(className.lastIndexOf('.')+1);
    Element element = root.addElement(name);
       Field[] fields = obj.getClass().getDeclaredFields();
  
    for (int j = 0; j < fields.length; j++) {
     fields[j].setAccessible(true);
     if(fields[j].get(obj)==null){
      continue;
     }
     String objValue = fields[j].get(obj).toString();
     String fieldName = fields[j].toString().substring(fields[j].toString().lastIndexOf('.')+1);
     element.addAttribute(fieldName,objValue);

     // HttpServletResponse response =
     // ServletActionContext.getResponse();
     // PrintWriter out = response.getWriter();
     // response.setContentType("text/xml;charset=utf-8");
     // response.setHeader("Cache-Control", "no-cache");
     // out.print(document.asXML());
     
    }
    
   return document.asXML();
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  return null;
 }
 
 /**
  *
  *
   @author： zhangjp
   @功能：把一个简单和合一个list对象生成的xml合并成一个xml
   @公用: yes
   @date： Feb 14, 2010
  */
 public static String getClassXML(Object object,String objRootName ,List list,String listRootName){
  try {
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement("root");
   Element objectNode = CreateXMLUtil.getClassXMLDocument(object, objRootName,false);
   Element listNode = CreateXMLUtil.getClassXMLDocument(list, listRootName);
   root.add(objectNode);
   root.add(listNode);
   return document.asXML();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  return null;
 }
 
 /**
  *
   @author： zhangjp
   @功能：获得object对象的根元素
   @公用:是
   @date： Feb 14, 2010
  */
 public static Element  getClassXMLDocument(Object obj,String rootName,boolean UID){
  try {
   if (obj == null) {
    return null;
   }
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement(rootName);
    String className = obj.getClass().getName();
    String name = className.substring(className.lastIndexOf('.')+1);
    Element element = root.addElement(name);
       Field[] fields = obj.getClass().getDeclaredFields();
  
    for (int j = 0; j < fields.length; j++) {
     fields[j].setAccessible(true);
     if(fields[j].get(obj)==null){
      continue;
     }
     String objValue = fields[j].get(obj).toString();
     String fieldName = fields[j].toString().substring(fields[j].toString().lastIndexOf('.')+1);
     if("serialVersionUID".equals(fieldName)){
      if(UID==false){
       continue;
      }
     }
     Element ele = element.addElement(fieldName);
     ele.addText(objValue);

     // HttpServletResponse response =
     // ServletActionContext.getResponse();
     // PrintWriter out = response.getWriter();
     // response.setContentType("text/xml;charset=utf-8");
     // response.setHeader("Cache-Control", "no-cache");
     // out.print(document.asXML());
     
    }
    
   return root;
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  return null;
 }
 
 /**
  *
   @author： zhangjp
   @功能：获得list对象的根元素
   @公用: 是
   @date： Feb 14, 2010
  */
 public static Element getClassXMLDocument(List<?> list ,String rootName){
  try {
   if (list == null || list.size() == 0) {
    return null;
   }
   Document document = DocumentHelper.createDocument();
   Element root = document.addElement(rootName);
   for (int i = 0; i < list.size(); i++) {
    String className = list.get(i).getClass().getName();
    String name = className.substring(className.lastIndexOf('.')+1);
    Element element = root.addElement(name);
       Field[] fields = list.get(i).getClass().getDeclaredFields();
  
    for (int j = 0; j < fields.length; j++) {
     fields[j].setAccessible(true);
     if(fields[j].get(list.get(i))==null){
      continue;
     }
     String objValue = fields[j].get(list.get(i)).toString();
     String fieldName = fields[j].toString().substring(fields[j].toString().lastIndexOf('.')+1);
     if("serialVersionUID".equals(fieldName)){
       continue; 
     }else{
      //以下为两种风格输出XML
      //element.addAttribute(fieldName,objValue);
      Element ele = element.addElement(fieldName);
      ele.addText(objValue);
      
        }

     // HttpServletResponse response =
     // ServletActionContext.getResponse();
     // PrintWriter out = response.getWriter();
     // response.setContentType("text/xml;charset=utf-8");
     // response.setHeader("Cache-Control", "no-cache");
     // out.print(document.asXML());
     
    }
    
    
   }
                return root;
  } catch (SecurityException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  
  return null;
 }
 

 public void writeDocument(String str,File file) throws Exception{
   try {  
      /* StringWriter writer = new StringWriter();  
       OutputFormat format = OutputFormat.createPrettyPrint();  
       format.setEncoding("utf-8");  
       XMLWriter xmlwriter = new XMLWriter(writer, format);  
       xmlwriter.write(str);  
       String outString = writer.toString();   */
      
     OutputStream os = new FileOutputStream(file);
     PrintWriter out = new PrintWriter(new OutputStreamWriter(os,"utf-8"));
     System.out.println(str);
     out.print(str);
     out.flush();
   } catch (Exception ex) {  
         ex.printStackTrace();  
     }
 }
 
 /**
  *
   @author： zhangjp
   @功能：test
   @公用:
   @date： Feb 14, 2010
  */
 public static void main(String[] args) {
 
   /***
    * test here
    */
 }
}