uploadify批量上传

时间：2022-03-07 22:55:10

js:

$("#uploadify").uploadify({

'uploader':'uploadServlet',

'swf':'image/uploadify.swf',

'cancelImg' : 'image/uploadify-cancel.png',

'folder' : 'upload/full', //您想将文件保存到的路径

'queueID' : 'fileQueue',//与下面的id对应

'queueSizeLimit' : 5,

'fileSizeLimit' : '2MB',

'fileTypeDesc' : 'jpg文件或png文件',

'fileTypeExts' : '*.jpg;*.png', //控制可上传文件的扩展名，启用本项时需同时声明fileDesc

'auto' : false,

'multi' : true,

'simUploadLimit' : 2,

'buttonText' : '选择文件',

'onUploadSuccess':function(file,data,response){

console.log(data);

$("#picList").append(data);

}

});

　　

后台servlet:

package com.lab.util;

import java.io.File;

import java.io.IOException;

import java.io.PrintWriter;

import java.util.Date;

import java.util.Iterator;

import java.util.List;

import javax.annotation.Resource;

import javax.servlet.ServletContext;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

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;

import org.apache.log4j.Logger;

import com.lab.po.ClientPO;

import com.lab.po.IbeaconPO;

import com.lab.po.PicturePO;

import com.lab.service.ClientService;

import com.lab.service.PictureService;

import com.lab.service.impl.PictureServiceImpl;

/**

 * Servlet implementation class uploadServlet

 */

public class uploadServlet extends HttpServlet {

	private static final long serialVersionUID = 1L;

	private static Logger logger = Logger.getLogger(uploadServlet.class);

    /**

     * @see HttpServlet#HttpServlet()

     */

    public uploadServlet() {

        super();

        // TODO Auto-generated constructor stub

    }

	/**

	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

	 */

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		// TODO Auto-generated method stub

	}

	/**

	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)

	 */

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

		// TODO Auto-generated method stub

		request.setCharacterEncoding("utf-8");

		response.setCharacterEncoding("utf-8");

		DiskFileItemFactory factory = new DiskFileItemFactory();

		ServletFileUpload sfUpload = new ServletFileUpload(factory);

		sfUpload.setFileSizeMax(5000*1024);

		boolean flag = false;

		String fileName = null;

		ServletContext svct = getServletContext();

		String path=svct.getRealPath("upload");

		System.out.println(path);

		try {

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

			Iterator<FileItem> items = list.iterator();

			while(items.hasNext()){

				FileItem item = items.next();

				if(!item.isFormField()){

					fileName = item.getName();

					System.out.println(fileName);

					fileName = System.currentTimeMillis()+fileName.substring(fileName.lastIndexOf("."));

					String uploadDir = path+"\\full\\"+fileName;

					File file = new File(path);

					if(!file.exists()){

						file.mkdir();

					}

					File ffile = new File(uploadDir);

					if(!ffile.exists()){

						item.write(ffile);

						flag=true;

					}

				}

			}

		} catch (FileUploadException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		} catch (Exception e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

		if(flag){

			String fullPath=path+"\\full\\"+fileName;

			String thumbPath=path+"\\thumb\\"+fileName;

			PictureUtil.toThumbPic(fullPath, thumbPath);

			PicturePO picturePO = new PicturePO();

			picturePO.setFull_path("upload\\full\\"+fileName);

			picturePO.setThumb_path("upload\\thumb\\"+fileName);

			HttpSession session = request.getSession(false);

			if(session!=null){

				picturePO.setIbeaconPO((IbeaconPO)session.getAttribute("ibeacon"));

			}

			//调用service方法时，只能通过getbean的方法得到service实例，普通的@resource不能用。

			PictureService pictureService=(PictureService) AppContext.getInstance().getAbstractApplicationContext().getBean("pictureService");

			//PictureService pictureService = new PictureServiceImpl();

			System.out.println(picturePO.getId());

			String resultString=null;

			if(pictureService.addPicture(picturePO)){

				if(session.getAttribute("client")!=null){

					ClientPO clientPO = (ClientPO) session.getAttribute("client");

					clientPO.setUpdateDate(new Date());

					ClientService clientService = (ClientService) AppContext.getInstance().getAbstractApplicationContext().getBean("clientService");

					clientService.updateClient(clientPO);

				}

				logger.info("上传图片成功！");

				System.out.println(picturePO.getId());

				resultString = "<li><div class='myCheckbox'><input type='checkbox' name='picCheck' value='"+picturePO.getId()+"' /></div><img onclick='showFullPic("+picturePO.getId()+")' src='"+picturePO.getThumb_path()+"' class='img-thumbnail'><br/><span><button type='button' class='btn btn-default btn-sm' onclick='deletePic("+picturePO.getId()+",this)'>删除</button></span></li>";

			}else{

				resultString = "false";

			}

			response.getWriter().print(resultString);

			//out.println("<script>parent.callBack('"+fileName+"')</script>");

		}else{

			//out.println("<script>parent.callBack('upload failed')</script>");

		}

	}

}

　　

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