基于java带进度条的多文件上传

package com.zz.servlet; import java.io.File; import java.io.IOException; import java.util.Iterator; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; 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 com.zz.util.ProgressStates; /** * @ClassName FileUploadServlet * @author Administrator * */ public class FileUploadServlet extends HttpServlet{ public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); //判断是否是MutiPart类型上传 boolean isMutiPart=ServletFileUpload.isMultipartContent(request); if(isMutiPart){ try { //硬件文件工厂 DiskFileItemFactory diskFactory=new DiskFileItemFactory(); //文件上传的工具类 ServletFileUpload upload=new ServletFileUpload(diskFactory); //增加监听器 upload.setProgressListener(new ProgressStates(request.getSession())); //获取上传表单域 List<FileItem> fileItems=upload.parseRequest(request); //获取上传表单域集合的迭代器 Iterator<FileItem> iter=fileItems.iterator(); //进行上传操作 while(iter.hasNext()){ //通过迭代获取表单域对象 FileItem fileItem=iter.next(); //普通表单域不处理 if(!fileItem.isFormField()){ //获取文件路径 String fileName=fileItem.getName(); //如果文件路径为空，则文件域没有选择文件上传 if(fileName!=null&&!fileName.equals("")){ File temFile=new File(fileName); //创建服务器存储菜单目录 File fileOnServer=new File(this.getServletContext().getRealPath("/upload"),temFile.getName()); //将文件写入本地服务器 fileItem.write(fileOnServer); System.out.println("文件"+fileOnServer.getName()+"上传成功!"); } } } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } } }