xml解析

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.xml.resolve.action;

import java.io.File;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;

import com.oreilly.servlet.MultipartRequest;

/**
 * MyEclipse Struts
 * Creation date: 08-28-2009
 *
 * XDoclet definition:
 * @struts.action scope="request"
 */
public class test extends Action {
 /*
  * Generated Methods
  */

 /**
  * Method execute
  * @param mapping
  * @param form
  * @param request
  * @param response
  * @return ActionForward
  */
 public ActionForward execute(ActionMapping mapping, ActionForm form,
   HttpServletRequest request, HttpServletResponse response) {
  try {
   MultipartRequest mu = new MultipartRequest(request, System
     .getProperty("user.dir"), 100000000, "gb2312");
   File f = mu.getFile("file");//"file"为jsp界面中对应的File组件的名称
   DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
   DocumentBuilder db = dbf.newDocumentBuilder();
   Document d = db.parse(f);
            NodeList n=d.getElementsByTagName("Policy");
            Node n1=n.item(0);
            NodeList n2=n1.getChildNodes();//n2包含回车，因为DOM解析时会把回车当做一个节点
            for(int i=0;i<n2.getLength();i++){
             Node n3=n2.item(i);
             if(n3.hasChildNodes()){
              System.out.println(n3.getNodeName()+"="+n3.getTextContent());
             }
            }
  } catch (Exception e) {
   System.out.print("error");  
   return mapping.findForward("index");
  }
  return mapping.findForward("ok");
 }

}