DWR一个让人很不解的问题，希望高手能帮帮忙，谢谢了！！！

昨天在用dom4j解析DWR.xml配置文件时，抛出如下异常：
Connection timed out: connect Nested exception: Connection timed out: connect
org.dom4j.DocumentException: Connection timed out: connect Nested exception: Connection timed out: connect
at org.dom4j.io.SAXReader.read(SAXReader.java:484)
at org.dom4j.io.SAXReader.read(SAXReader.java:321)
at com.bf.common.pxvp.util.AutoCreateFile.createDwrDemoXml(AutoCreateFile.java:159)
at com.bf.common.pxvp.util.AutoCreateFileMain.createFile(AutoCreateFileMain.java:26)
at com.bf.common.pxvp.util.AutoCreateFileMain.main(AutoCreateFileMain.java:14)
Nested exception:
java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.<init>(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.startDTDEntity(Unknown Source)
at org.apache.xerces.impl.XMLDTDScannerImpl.setInputSource(Unknown Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.dom4j.io.SAXReader.read(SAXReader.java:321)
at com.bf.common.pxvp.util.AutoCreateFile.createDwrDemoXml(AutoCreateFile.java:159)
at com.bf.common.pxvp.util.AutoCreateFileMain.createFile(AutoCreateFileMain.java:26)
at com.bf.common.pxvp.util.AutoCreateFileMain.main(AutoCreateFileMain.java:14)
Nested exception: java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.<init>(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.startDTDEntity(Unknown Source)
at org.apache.xerces.impl.XMLDTDScannerImpl.setInputSource(Unknown Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.dom4j.io.SAXReader.read(SAXReader.java:321)
at com.bf.common.pxvp.util.AutoCreateFile.createDwrDemoXml(AutoCreateFile.java:159)
at com.bf.common.pxvp.util.AutoCreateFileMain.createFile(AutoCreateFileMain.java:26)
at com.bf.common.pxvp.util.AutoCreateFileMain.main(AutoCreateFileMain.java:14)
dwr.xml文件如下：

 <?xml version="1.0" encoding="UTF-8"?>

        <!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://getahead.org/dwr/dwr20.dtd">



        <dwr>

          <allow>

            <create creator="spring" javascript="UserService">

              <param name="beanName" value="userService"/>

            </create>

            <create creator="spring" javascript="PxvpService">

              <param name="beanName" value="pxvpService"/>

            </create>

          </allow>

        </dwr>

java代码如下：

public void createDwrDemoXml(String dirName, String modelName) {

                System.out.println("AutoCreateFile.creatDwrDemoXml()...");

                System.out.println("file is:"+System.getProperty("user.dir") + "\\WebRoot\\WEB-INF\\DWR-DEMO.xml");

                try {

                        Document doc = new SAXReader().read(System.getProperty("user.dir") + "\\WebRoot\\WEB-INF\\DWR-DEMO.xml");        //指定xml文件

                        

                        Element root = (Element)doc.getRootElement().selectSingleNode("/dwr/allow");                                                                 //获取根节点

                        List<Element> elementsList = root.elements();                                                        //获取allow节点下的所有节点

                        for(Element element:elementsList){                                                                                //判断节点是否添加过

                                if((element.attributeValue("javascript").equals(modelName + "Service"))){

                                        element.detach();                                                                                                //删除已存在节点

                                        break;

                                }

                        }

                        Element newRoot = root.addElement("create");                                                        //添加一个新的节点

                        newRoot.addAttribute("creator", "spring");                                                                //向节点添加属性及属性值

                        newRoot.addAttribute("javascript", modelName + "Service");                                        

                        Element inteRoot = newRoot.addElement("param");                                                        //添加新节点的子节点

                        inteRoot.addAttribute("name", "beanName");

                        inteRoot.addAttribute("value", modelName.toLowerCase() + "Service");

                        xmlWriter(doc,System.getProperty("user.dir") + "\\WebRoot\\WEB-INF\\DWR-DEMO.xml");

                        System.out.println(doc.asXML());

                } catch (DocumentException e) {

                        System.out.println(e.getMessage());

                        e.printStackTrace();

                }

        }

希望各位大鸟能帮帮忙，小弟在此谢过了！！！