SpringMVC文件上传与下载二(上传成为压缩文件).docx

相关资源下载地址：/detail/geloin/4506561 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java view plain copy print?1. 注意，需要在头部添加内容，添加后如下所示：java view plain copy print?1. (3) 添加工具类FileOperateUtil.java java view plain copy print?1. /*2. *3. *authorgeloin4. *date2012-5-5下午12:05:575. */6. packagecom.geloin.spring.util;7. 8. importjava.io.BufferedInputStream;9. importjava.io.BufferedOutputStream;10. importjava.io.File;11. importjava.io.FileInputStream;12. importjava.io.FileOutputStream;13. importjava.text.SimpleDateFormat;14. importjava.util.ArrayList;15. importjava.util.Date;16. importjava.util.HashMap;17. importjava.util.Iterator;18. importjava.util.List;19. importjava.util.Map;20. 21. importjavax.servlet.http.HttpServletRequest;22. importjavax.servlet.http.HttpServletResponse;23. 24. importorg.apache.tools.zip.ZipEntry;25. importorg.apache.tools.zip.ZipOutputStream;26. importorg.springframework.util.FileCopyUtils;27. importorg.springframework.web.multipart.MultipartFile;28. importorg.springframework.web.multipart.MultipartHttpServletRequest;29. 30. /*31. *32. *authorgeloin33. *date2012-5-5下午12:05:5734. */35. publicclassFileOperateUtil36. privatestaticfinalStringREALNAME=realName;37. privatestaticfinalStringSTORENAME=storeName;38. privatestaticfinalStringSIZE=size;39. privatestaticfinalStringSUFFIX=suffix;40. privatestaticfinalStringCONTENTTYPE=contentType;41. privatestaticfinalStringCREATETIME=createTime;42. privatestaticfinalStringUPLOADDIR=uploadDir/;43. 44. /*45. *将上传的文件进行重命名46. *47. *authorgeloin48. *date2012-3-29下午3:39:5349. *paramname50. *return51. */52. privatestaticStringrename(Stringname)53. 54. Longnow=Long.parseLong(newSimpleDateFormat(yyyyMMddHHmmss)55. .format(newDate();56. Longrandom=(long)(Math.random()*now);57. StringfileName=now+random;58. 59. if(name.indexOf(.)!=-1)60. fileName+=name.substring(name.lastIndexOf(.);61. 62. 63. returnfileName;64. 65. 66. /*67. *压缩后的文件名68. *69. *authorgeloin70. *date2012-3-29下午6:21:3271. *paramname72. *return73. */74. privatestaticStringzipName(Stringname)75. Stringprefix=;76. if(name.indexOf(.)!=-1)77. prefix=name.substring(0,name.lastIndexOf(.);78. else79. prefix=name;80. 81. returnprefix+.zip;82. 83. 84. /*85. *上传文件86. *87. *authorgeloin88. *date2012-5-5下午12:25:4789. *paramrequest90. *paramparams91. *paramvalues92. *return93. *throwsException94. */95. publicstaticListMapupload(HttpServletRequestrequest,96. Stringparams,Mapvalues)throwsException97. 98. ListMapresult=newArrayListMap();99. 100. MultipartHttpServletRequestmRequest=(MultipartHttpServletRequest)request;101. MapfileMap=mRequest.getFileMap();102. 103. StringuploadDir=request.getSession().getServletContext()104. .getRealPath(/)105. +FileOperateUtil.UPLOADDIR;106. Filefile=newFile(uploadDir);107. 108. if(!file.exists()109. file.mkdir();110. 111. 112. StringfileName=null;113. inti=0;114. for(IteratorMap.Entryit=fileMap.entrySet()115. .iterator();it.hasNext();i+)116. 117. Map.Entryentry=it.next();118. MultipartFilemFile=entry.getValue();119. 120. fileName=mFile.getOriginalFilename();121. 122. StringstoreName=rename(fileName);123. 124. StringnoZipName=uploadDir+storeName;125. StringzipName=zipName(noZipName);126. 127. /上传成为压缩文件128. ZipOutputStreamoutputStream=newZipOutputStream(129. newBufferedOutputStream(newFileOutputStream(zipName);130. outputStream.putNextEntry(newZipEntry(fileName);131. outputStream.setEncoding(GBK);132. 133. FileCopyUtils.copy(mFile.getInputStream(),outputStream);134. 135. Mapmap=newHashMap();136. /固定参数值对137. map.put(FileOperateUtil.REALNAME,zipName(fileName);138. map.put(FileOperateUtil.STORENAME,zipName(storeName);139. map.put(FileOperateUtil.SIZE,newFile(zipName).length();140. map.put(FileOperateUtil.SUFFIX,zip);141. map.put(FileOperateUtil.CONTENTTYPE,application/octet-stream);142. map.put(FileOperateUtil.CREATETIME,newDate();143. 144. /自定义参数值对145. for(Stringparam:params)146. map.put(param,values.get(param)i);147. 148. 149. result.add(map);150. 151. returnresult;152. 153. 154. /*155. *下载156. *157. *authorgeloin158. *date2012-5-5下午12:25:39159. *paramrequest160. *paramresponse161. *paramstoreName162. *paramcontentType163. *paramrealName164. *throwsException165. */166. publicstaticvoiddownload(HttpServletRequestrequest,167. HttpServletResponseresponse,StringstoreName,StringcontentType,168. StringrealName)throwsException169. response.setContentType(text/html;charset=UTF-8);170. request.setCharacterEncoding(UTF-8);171. BufferedInputStreambis=null;172. BufferedOutputStreambos=null;173. 174. StringctxPath=request.getSession().getServletContext()175. .getRealPath(/)176. +FileOperateUtil.UPLOADDIR;177. StringdownLoadPath=ctxPath+storeName;178. 179. longfileLength=newFile(downLoadPath).length();180. 181. response.setContentType(contentType);182. response.setHeader(Content-disposition,attachment;filename=183. +newString(realName.getBytes(utf-8),ISO8859-1);184. response.setHeader(Content-Length,String.valueOf(fileLength);185. 186. bis=newBufferedInputStream(newFileInputStream(downLoadPath);187. bos=newBufferedOutputStream(response.getOutputStream();188. bytebuff=newbyte2048;189. intbytesRead;190. while(-1!=(bytesRead=bis.read(buff,0,buff.length)191. bos.write(buff,0,bytesRead);192. 193. bis.close();194. bos.close();195. 196. /* * * 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 ListMap upload(HttpServletRequest request,String params, Map values) throws Exception ListMap result = new ArrayListMap();MultipartHttpServletRequest mRequest = (MultipartHttpServletRequest) request;Map 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 (IteratorMap.Entry it = fileMap.entrySet().iterator(); it.hasNext(); i+) Map.Entry 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 map = new HashMap();/ 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 byte2048;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。 (4) 添加FileOperateController.Javajava view plain copy print?1. /*2. *3. *authorgeloin4. *date2012-5-5上午11:56:355. */6. packagecom.geloin.spring.controller;7. 8. importjava.util.HashMap;9. importjava.util.List;10. importjava.util.Map;11. 12. importjavax.servlet.http.HttpServletRequest;13. importjavax.servlet.http.HttpServletResponse;14. 15. importorg.springframework.stereotype.Controller;16. importorg.springframework.web.bind.ServletRequestUtils;17. importorg.springframework.web.bind.annotation.RequestMapping;18. importorg.springframework.web.servlet.ModelAndView;19. 20. importcom.geloin.spring.util.FileOperateUtil;21. 22. /*23. *24. *authorgeloin25. *date2012-5-5上午11:56:3526. */27. Controller28. RequestMapping(value=background/fileOperate)29. publicclassFileOperateController30. /*31. *到上传文件的位置32. *33. *authorgeloin34. *date2012-3-29下午4:01:3135. *return36. */37. RequestMapping(value=to_upload)38. publicModelAndViewtoUpload()39. returnnewModelAndView(background/fileOperate/upload);40. 41. 42. /*43. *上传文件44. *45. *authorgeloin46. *date2012-3-29下午4:01:4147. *paramrequest48. *return49. *throwsException50. */51. RequestMapping(value=upload)52. publicModelAndViewupload(HttpServletRequestrequest)throwsException53. 54. Mapmap=newHashMap();55. 56. /别名57. Stringalaises=ServletRequestUtils.getStringParameters(request,58. alais);59. 60. Stringparams=newStringalais;61. Mapvalues=newHashMap();62. values.put(alais,alaises);63. 64. ListMapresult=FileOperateUtil.upload(request,65. params,values);66. 67. map.put(result,result);68. 69. returnnewModelAndView(background/fileOperate/list,map);70. 71. 72. /*73. *下载74. *75. *authorgeloin76. *date2012-3-29下午5:24:1477. *paramattachment78. *paramrequest79. *paramresponse80. *return81. *throwsException82. */83. RequestMapping(value=download)84. publicModelAndViewdownload(HttpServletRequestrequest,85. HttpServletResponseresponse)throwsException86. 87. StringstoreName=201205051340364510870879724.zip;88. StringrealName=Java设计模式.zip;89. StringcontentType=application/octet-stream;90. 91. FileOperateUtil.download(requ