找不到指定路径问题

package com.imooc.util;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.fileupload.FileItem;

import org.apache.commons.fileupload.FileUploadException;

import org.apache.commons.fileupload.disk.DiskFileItemFactory;

import org.apache.commons.fileupload.servlet.ServletFileUpload;

public class UploadUtils {

public static Map<String, Object> UploadFile(String uploadDirectory, HttpServletRequest request)

throws ServletException, IOException {

Map<String, Object> map = new HashMap<String, Object>();

try {

// 创建一个磁盘文件工厂对象

DiskFileItemFactory factory = new DiskFileItemFactory();

// 创建一个核心解析类

ServletFileUpload upload = new ServletFileUpload(factory);

// 解析request请求，返回的是list集合，list集合中存放的是FileItem对象

List<FileItem> list= upload.parseRequest(request);

String url=null ;

// 遍历集合,将每个表单项存储到Map集合

for (FileItem fileItem : list) {

if (fileItem.isFormField()) {

String name=fileItem.getFieldName();

String value=fileItem.getString("utf-8");

System.out.println(name+"  "+value);

map.put(name, value);

} else {

String fileName = fileItem.getName();

System.out.println(fileName);

// 获取文件的随机名

String uuidFileName = UuidUtils.getUUIDFileName(fileName);

// 获取文件上传的数据

InputStream is = fileItem.getInputStream();

// 将输入流对接到输出流

url = uploadDirectory + "\\" + uuidFileName;

OutputStream os = new FileOutputStream(url);

int len = 0;

byte[] bytes = new byte[1024];

while ((len = is.read(bytes)) != -1) {

os.write(bytes, 0, len);

}

is.close();

os.close();

// 将文件地址保存到集合

}

}

} catch (FileUploadException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return map;

}

}

package com.imooc.servlet;

import java.io.IOException;

import java.util.Map;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.imooc.model.FoodDaoImpl;

import com.imooc.util.UploadUtils;

/**

 * 添加菜品信息的Servlet 

 */

@WebServlet("/FoodAddServlet")

public class FoodAddServlet extends HttpServlet {

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

//将文件上传路径导入

Map<String,Object> map=UploadUtils.UploadFile("/upload", request);

FoodDaoImpl fdi=new FoodDaoImpl();

fdi.addFood(map);

request.getSession().setAttribute("list", fdi.getFoodByName(request.getParameter("foodName")));

response.sendRedirect(request.getContextPath()+"/showFoodList.jsp");

}

protected void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doGet(request, response);

}

}