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本文基于Spring MVC 注解，让Spring跑起来。
(1) 导入jar包：ant.jar、commons-fileupload.jar、connom-io.jar。
(2) 在src/context/dispatcher.xml中添加
<bean id="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver"p:defaultEncoding="UTF-8" />
注意，需要在头部添加内容，添加后如下所示：
<beans default-lazy-init="true"xmlns=""xmlns:p="" xmlns:xsi=""xmlns:context=""xmlns:mvc=""xsi:schemaLocation=""> (3) 添加工具类FileOperateUtil.java/** * * @author geloin * @date 2012-5-5 下午12:05:57 */package com.geloin.spring.util;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.tools.zip.ZipEntry;import org.apache.tools.zip.ZipOutputStream;import org.springframework.util.FileCopyUtils;import org.springframework.web.multipart.MultipartFile;import org.springframework.web.multipart.MultipartHttpServletRequest;/** * * @author geloin * @date 2012-5-5 下午12:05:57 */public class FileOperateUtil {private static final String REALNAME = "realName";private static final String STORENAME = "storeName";private static final String SIZE = "size";private static final String SUFFIX = "suffix";private static final String CONTENTTYPE = "contentType";private static final String CREATETIME = "createTime";private static final String UPLOADDIR = "uploadDir/";/** * 将上传的文件进行重命名 * * @author geloin * @date 2012-3-29 下午3:39:53 * @param name * @return */private static String rename(String name) {Long now = Long.parseLong(new SimpleDateFormat("yyyyMMddHHmmss").format(new Date()));Long random = (long) (Math.random() * now);String fileName = now + "" + random;if (name.indexOf(".") != -1) {fileName += name.substring(name.lastIndexOf("."));}return fileName;}/** * 压缩后的文件名 * * @author geloin * @date 2012-3-29 下午6:21:32 * @param name * @return */private static String zipName(String name) {String prefix = "";if (name.indexOf(".") != -1) {prefix = name.substring(0, name.lastIndexOf("."));} else {prefix = name;}return prefix + ".zip";}/** * 上传文件 * * @author geloin * @date 2012-5-5 下午12:25:47 * @param request * @param params * @param values * @return * @throws Exception */public static List<Map<String, Object>> upload(HttpServletRequest request,String[] params, Map<String, Object[]> values) throws Exception {List<Map<String, Object>> result = new ArrayList<Map<String, Object>>();MultipartHttpServletRequest mRequest = (MultipartHttpServletRequest) request;Map<String, MultipartFile> fileMap = mRequest.getFileMap();String uploadDir = request.getSession().getServletContext().getRealPath("/")+ FileOperateUtil.UPLOADDIR;File file = new File(uploadDir);if (!file.exists()) {file.mkdir();}String fileName = null;int i = 0;for (Iterator<Map.Entry<String, MultipartFile>> it = fileMap.entrySet().iterator(); it.hasNext(); i++) {Map.Entry<String, MultipartFile> entry = it.next();MultipartFile mFile = entry.getValue();fileName = mFile.getOriginalFilename();String storeName = rename(fileName);String noZipName = uploadDir + storeName;String zipName = zipName(noZipName);// 上传成为压缩文件ZipOutputStream outputStream = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipName)));outputStream.putNextEntry(new ZipEntry(fileName));outputStream.setEncoding("GBK");FileCopyUtils.copy(mFile.getInputStream(), outputStream);Map<String, Object> map = new HashMap<String, Object>();// 固定参数值对map.put(FileOperateUtil.REALNAME, zipName(fileName));map.put(FileOperateUtil.STORENAME, zipName(storeName));map.put(FileOperateUtil.SIZE, new File(zipName).length());map.put(FileOperateUtil.SUFFIX, "zip");map.put(FileOperateUtil.CONTENTTYPE, "application/octet-stream");map.put(FileOperateUtil.CREATETIME, new Date());// 自定义参数值对for (String param : params) {map.put(param, values.get(param)[i]);}result.add(map);}return result;}/** * 下载 * * @author geloin * @date 2012-5-5 下午12:25:39 * @param request * @param response * @param storeName * @param contentType * @param realName * @throws Exception */public static void download(HttpServletRequest request,HttpServletResponse response, String storeName, String contentType,String realName) throws Exception {response.setContentType("text/html;charset=UTF-8");request.setCharacterEncoding("UTF-8");BufferedInputStream bis = null;BufferedOutputStream bos = null;String ctxPath = request.getSession().getServletContext().getRealPath("/")+ FileOperateUtil.UPLOADDIR;String downLoadPath = ctxPath + storeName;long fileLength = new File(downLoadPath).length();response.setContentType(contentType);response.setHeader("Content-disposition", "attachment; filename="+ new String(realName.getBytes("utf-8"), "ISO8859-1"));response.setHeader("Content-Length", String.valueOf(fileLength));bis = new BufferedInputStream(new FileInputStream(downLoadPath));bos = new BufferedOutputStream(response.getOutputStream());byte[] buff = new byte[2048];int bytesRead;while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {bos.write(buff, 0, bytesRead);}bis.close();bos.close();}} 可完全使用而不必改变该类，需要注意的是，该类中设定将上传后的文件放置在WebContent/uploadDir下。不要再以任何人说你，因为你不是为任何人而活，你只为自己而活，
