用SAXparser解析xml文件时老是提示找不到文件，小弟我以经把路径给它了

package com.iotek.xml.studentXML;import java.io.File;import java.util.ArrayList;import java.util.List;public class TestStudentSAXParser {    /**     * @param args     */    public static void main(String[] args) {        List<Student> students=new ArrayList<Student>();                        String xmlpathString="E:\\Documents and Settings\\Administrator\\Workspaces\\MyEclipse 8.5\\my_java\\Student.xml";            System.out.println("读取到的XML文件的路径为:  " + xmlpathString);            File file=new File(xmlpathString);            StudentReader studentReader=new StudentReader();            studentReader.read(file);        }        }------------------------------------------------------------------------package com.iotek.xml.studentXML;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.io.InputStream;import java.util.List;import java.util.ArrayList;import javax.xml.parsers.ParserConfigurationException;import javax.xml.parsers.SAXParser;import javax.xml.parsers.SAXParserFactory;import org.xml.sax.Attributes;import org.xml.sax.Locator;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;public class StudentReader extends DefaultHandler {            public void read(File file){        SAXParserFactory factory=SAXParserFactory.newInstance();                SAXParser parser=null;        try {            parser = factory.newSAXParser();        } catch (ParserConfigurationException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } catch (SAXException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }                        /*InputStream is=null;        try {            is = new FileInputStream(file);        } catch (FileNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }*/        StudentReader dh=new StudentReader();        [color=#FF0000]try {            parser.parse(file, dh);在这里提示找不到文件        } catch (SAXException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }[/color]    @Override    public void characters(char[] ch, int start, int length)            throws SAXException {            }    @Override    public void endDocument() throws SAXException {        System.out.println("end parse the document");    }    @Override    public void endElement(String uri, String localName, String qName)            throws SAXException {            }    @Override    public void endPrefixMapping(String prefix) throws SAXException {            }    @Override    public void ignorableWhitespace(char[] ch, int start, int length)            throws SAXException {            }    @Override    public void processingInstruction(String target, String data)            throws SAXException {                    }    @Override    public void setDocumentLocator(Locator locator) {            }    @Override    public void skippedEntity(String name) throws SAXException {            }    @Override    public void startDocument() throws SAXException {            System.out.println("start to parse the document");    }    @Override    public void startElement(String uri, String localName, String qName,            Attributes atts) throws SAXException {                    }    @Override    public void startPrefixMapping(String prefix, String uri)            throws SAXException {                    }}