Java大文件上传（1GB,图片,视频,Flash文件,音频文件）

package com.upload.web.servlet; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintWriter; 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 javax.servlet.http.HttpSession; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; /** * @see 批量上传文件 * @version 1.0 * */ public class MoreUploadSvl extends HttpServlet { private static final long serialVersionUID = 1L; @Override @SuppressWarnings("unchecked") protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { HttpSession session = request.getSession(); String path = request.getParameter("upPath");// 上传保存的目录 //String fileType = request.getParameter("fileType");// 文件类型:0图片,1视频,2Flash文件,3音频文件,4任何文件 String base = session.getServletContext().getRealPath("/");// 文件上传的根目录 createFolder(base + path);// 创建文件夹 DiskFileItemFactory factory = new DiskFileItemFactory(); factory.setSizeThreshold(4096); ServletFileUpload upload = new ServletFileUpload(factory); Long maxFileSize = 524288000l;// 允许上传的最大文件大小(字节) upload.setSizeMax(maxFileSize); request.setCharacterEncoding("UTF-8"); List items = upload.parseRequest(request); Iterator iterator = items.iterator(); while (iterator.hasNext()) { FileItem item = (FileItem) iterator.next();//源文件 if (!item.isFormField() && !"".equals(item.getName())) { String fileName = item.getName();//原文件名 //String extend = fileName.substring(fileName.lastIndexOf(".") + 1);//后缀名 //fileName = FileUtil.getNowDate(2) + FileUtil.getRandom(3) + "." + extend;//新文件名 File folder = new File(base + path);//文件夹 File file = new File(folder, fileName);//新文件 OutputStream output = new FileOutputStream(file); InputStream input = item.getInputStream(); try { byte[] buffer = new byte[1024]; int i = 0; while ((i = input.read(buffer)) != -1) { output.write(buffer, 0, i);//保存文件 } } catch (Exception e) { e.printStackTrace(); } finally { input.close(); output.close(); } out.print(file.getName()); out.close(); return; } } } catch (Exception e) { e.printStackTrace(); } out.print("fail"); out.close(); return; } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doGet(request, response); } /** * @see 创建文件夹 * @param path 文件夹物理路径 * */ private void createFolder(String path) { try { File folder = new File(path); if (!folder.exists()) { folder.mkdirs(); } } catch (Exception e) { e.printStackTrace(); } } }