FormFile file=manform.getFile(); String newfileName = null;String newpathname=null;String fileAddre="/numUp";try {InputStream stream = file.getInputStream();// 把文件讀入String filePath = request.getRealPath(fileAddre);//取系統當前路徑File file1 = new File(filePath);//添加了自動創建目錄的功能((File) file1).mkdir(); newfileName = System.currentTimeMillis()+ file.getFileName().substring(file.getFileName().lastIndexOf('.'));ByteArrayOutputStream baos = new ByteArrayOutputStream();OutputStream bos = new FileOutputStream(filePath + "/"+ newfileName);newpathname=filePath+"/"+newfileName;System.out.println(newpathname);// 建立一個上傳文件的輸出流System.out.println(filePath+"/"+file.getFileName());int bytesRead = 0;byte[] buffer = new byte[8192];while ((bytesRead = stream.read(buffer, 0, 8192)) != -1) {bos.write(buffer, 0, bytesRead);// 將文件寫入服務器}bos.close();stream.close();} catch (FileNotFoundException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}

package com.vogoal.util;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.Hashtable;import javax.servlet.ServletInputStream;import javax.servlet.http.HttpServletRequest;public class JspFileUpload {/** request對象 */private HttpServletRequest request = null;/** 上傳文件的路徑 */private String uploadPath = null;/** 每次讀取得字節的大小 */private static int BUFSIZE = 1024 * 8;/** 存儲參數的Hashtable */private Hashtable paramHt = new Hasptable();/** 存儲上傳的文件的文件名的ArrayList */private ArrayList updFileArr = new ArrayList();/*** 設定request對象。* * @param request* HttpServletRequest request對象*/public void setRequest(HttpServletRequest request) {this.request = request;}/*** 設定文件上傳路徑。* * @param path* 用戶指定的文件的上傳路徑。*/public void setUploadPath(String path) {this.uploadPath = path;}/*** 文件上傳處理主程序。�������B* * @return int 操作結果 0 文件操作成功；1 request對象不存在。 2 沒有設定文件保存路徑或者文件保存路徑不正確；3* 沒有設定正確的enctype；4 文件操作異常。*/public int process() {int status = 0;// 文件上傳前，對request對象，上傳路徑以及enctype進行check。status = preCheck();// 出錯的時候返回錯誤代碼。if (status != 0)return status;try {// ��參數或者文件名�u��String name = null;// 參數的valueString value = null;// 讀取的流是否為文件的標志位boolean fileFlag = false;// 要存儲的文件。File tmpFile = null;// 上傳的文件的名字String fName = null;FileOutputStream baos = null;BufferedOutputStream bos = null;// ��存儲參數的HashtableparamHt = new Hashtable();updFileArr = new ArrayList();int rtnPos = 0;byte[] buffs = new byte[BUFSIZE * 8];// �取得ContentTypeString contentType = request.getContentType();int index = contentType.indexOf("boundary=");String boundary = "--" + contentType.substring(index + 9);String endBoundary = boundary + "--";// �從request對象中取得流。ServletInputStream sis = request.getInputStream();// 讀取1行while ((rtnPos = sis.readLine(buffs, 0, buffs.length)) != -1) {String strBuff = new String(buffs, 0, rtnPos);// 讀取1行數據�n��if (strBuff.startsWith(boundary)) {if (name != null && name.trim().length() > 0) {if (fileFlag) {bos.flush();baos.close();bos.close();baos = null;bos = null;updFileArr.add(fName);} else {Object obj = paramHt.get(name);ArrayList al = new ArrayList();if (obj != null) {al = (ArrayList) obj;}al.add(value);System.out.println(value);paramHt.put(name, al);}}name = new String();value = new String();fileFlag = false;fName = new String();rtnPos = sis.readLine(buffs, 0, buffs.length);if (rtnPos != -1) {strBuff = new String(buffs, 0, rtnPos);if (strBuff.toLowerCase().startsWith("content-disposition: form-data; ")) {int nIndex = strBuff.toLowerCase().indexOf("name=/"");int nLastIndex = strBuff.toLowerCase().indexOf("/"", nIndex + 6);name = strBuff.substring(nIndex + 6, nLastIndex);}int fIndex = strBuff.toLowerCase().indexOf("filename=/"");if (fIndex != -1) {fileFlag = true;int fLastIndex = strBuff.toLowerCase().indexOf("/"", fIndex + 10);fName = strBuff.substring(fIndex + 10, fLastIndex);fName = getFileName(fName);if (fName == null || fName.trim().length() == 0) {fileFlag = false;sis.readLine(buffs, 0, buffs.length);sis.readLine(buffs, 0, buffs.length);sis.readLine(buffs, 0, buffs.length);continue;}else{fName = getFileNameByTime(fName);sis.readLine(buffs, 0, buffs.length);sis.readLine(buffs, 0, buffs.length);}}}} else if (strBuff.startsWith(endBoundary)) {if (name != null && name.trim().length() > 0) {if (fileFlag) {bos.flush();baos.close();bos.close();baos = null;bos = null;updFileArr.add(fName);} else {Object obj = paramHt.get(name);ArrayList al = new ArrayList();if (obj != null) {al = (ArrayList) obj;}al.add(value);paramHt.put(name, al);}}} else {if (fileFlag) {if (baos == null && bos == null) {tmpFile = new File(uploadPath + fName);baos = new FileOutputStream(tmpFile);bos = new BufferedOutputStream(baos);}bos.write(buffs, 0, rtnPos);baos.flush();} else {System.out.println("test :" + value + "--" + strBuff);value = value + strBuff;}}}} catch (IOException e) {status = 4;}return status;}private int preCheck() {int errCode = 0;if ( request == null )return 1;if ( uploadPath == null || uploadPath.trim().length() == 0 )return 2;else{File tmpF = new File(uploadPath);if (!tmpF.exists())return 2;}String contentType = request.getContentType();if ( contentType.indexOf("multipart/form-data") == -1 )return 3;return errCode;}public String getParameter(String name){String value = "";if ( name == null || name.trim().length() == 0 )return value;value = (paramHt.get(name) == null)?"":(String)((ArrayList)paramHt.get(name)).get(0);return value;}public String[] getParameters(String name){if ( name == null || name.trim().length() == 0 )return null;if ( paramHt.get(name) == null )return null;ArrayList al = (ArrayList)paramHt.get(name);String[] strArr = new String[al.size()];for ( int i=0;i<al.size();i++ )strArr[i] = (String)al.get(i);return strArr;}public int getUpdFileSize(){return updFileArr.size();}public String[] getUpdFileNames(){String[] strArr = new String[updFileArr.size()];for ( int i=0;i<updFileArr.size();i++ )strArr[i] = (String)updFileArr.get(i);return strArr;}private String getFileName(String input){int fIndex = input.lastIndexOf("http://");if (fIndex == -1) {fIndex = input.lastIndexOf("/");if (fIndex == -1) {return input;}} input = input.substring(fIndex + 1);return input;}private String getFileNameByTime(String input){int index = input.indexOf(".");Date dt = new Date();SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS");return input.substring(0,index) + sdf.format(dt) + input.substring(index);}}

<%@page import="com.vogoal.util.JspFileUpload"%><%//初始化JspFileUpload jfu = new JspFileUpload();//設定request對象jfu.setRequest(request);//設定上傳的文件路徑jfu.setUploadPath("C://");//上傳處理int rtn = jfu.process();//取得form中其他input控件參數的值String username = jfu.getParameter("username");//如果對應同一個參數有多個input控件，返回數組String[] usernameArr = jfu.getParameters("username");//取得上傳的文件的名字String[] fileArr = jfu.getUpdFileNames();//取得上傳文件的個數，這個方法有點雞肋int fileNumber = jfu.getUpdFileSize();//下面的是測試輸出的代碼。// out.println("parameter:" + username);// out.println("parameter size:" + usernameArr.length);// out.println("fileArr size:" + fileArr.length);// if (fileArr.length > 0)// out.println("fileArr 0:" + fileArr[0]);%>

public class UploadAction{ private File uploadImage; //文件 private String uploadImageContentType;//文件的類型 private String uploadImageFileName;//文件的名稱 private String bookname;//書名 private String author;//作者 private String savePath;//文件的保存位置 //屬性的getter/setter方法 public String upload() throws Exception{ //實現上傳代碼，I/O操作完成 return "uploadSuccess"; } } 

<action name="upload" class="com.gqy.UploadAction"> <param name="savePath">/uploadFile</param> <result>/success.jsp</result> </action> 

<param name="allowTypes"> image/bmp,image/png,image/gif,image/jpeg </param> 

<param name="maximumSize" >1048576</param> 

<action name="uploadFileAction" class="com.actions.UploadFileAction"> <interceptor-ref name="defaultStack"> <!-- 配置允許上傳的文件類型，多個用","分隔 --> <param name="fileUpload.allowedTypes"> image/bmp,image/png,image/gif,image/jpeg,image/jpg ,image/x-png, image/pjpeg </param> <!-- 配置允許上傳的文件大小，單位字節,本例為：1MB --> <param name="fileUpload.maximumSize">1048576</param> </interceptor-ref> <result name="input">/jsp/oneFileFileupload.jsp</result> <result name="success">/jsp/result.jsp</result> </action> 

<constant name="struts.custom.i18n.resources" value="messages"/>或<constant name="struts.custom.i18n.resources" value="messages_zh_CN"/>

public class FileDownloadAction implements Action{ //該屬性值在配置文件中指定，Struts2會自動進行注入（即賦值），需要為該屬性提供setter和 getter方法 private String inputPath;//指定要下載的文件的完整路徑(路徑名＋文件名) /* * 實現下載的Action類應該提供一個返回InputStream實例的方法，該方法對應在 <result.../>里的inputName屬性值為targetFile */ public InputStream getTargetFile() throws Exception{ return ServletActionContext.getServletContext().getResourceAsStream(inputPath); } //處理用戶請求的execute方法，該方法返回success字符串 public String execute() throws Exception{ return "success"; } } 

<action name="download" class="com.FileDownloadAction"><!--指定被下載資源的位置--><param name="inputPath">/uploadFile/demo.txt</param><!--配置結果類型為stream的結果--><result name="success" type="stream"><!--指定下載文件的文件類型--><param name="contentType"></param><!--指定下載文件的文件位置--><param name="inputName">targetFile</param><!--指定下載文件的下載方式及下載時的保存文件名，filename保存時的文件名必須有擴展名，擴展名指示了下載類型的圖標--><param name="contentDisposition">attachment;filename=Struts2.txt</param><!--指定下載文件的緩沖區大小--><param name="bufferSize">4096</param></result></action>