package?servlet.upload;

import?java.io.File;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.io.InputStream;
import?java.io.OutputStream;
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.disk.DiskFileItemFactory;
import?org.apache.commons.fileupload.servlet.ServletFileUpload;

public?class?ProgressUploadServlet?extends?HttpServlet?{

	protected?void?doGet（HttpServletRequest?req?HttpServletResponse?resp）
			throws?ServletException?IOException?{
		resp.setHeader（“Cache-Control“?“no-store“）;//?禁止瀏覽器緩存
		resp.setHeader（“Pragrma“?“no-cache“）;//?禁止瀏覽器緩存
		resp.setDateHeader（“Expires“?0）;//?禁止瀏覽器緩存

		UploadStatus?status?=?（UploadStatus）?req.getSession（true）.getAttribute（
				“uploadstatus“）;
		if?（status?==?null）?{
			this.log（“沒有上傳文件!“）;
			return;
		}
		long?startTime?=?status.getStartTime（）;
		long?currentTime?=?System.currentTimeMillis（）;
		long?time?=?（currentTime?-?startTime）?/?1000?+?1;?//?已傳輸?shù)臅r間?單位：s
		double?velocity?=?（（double）?status.getByteRead（））?/?（double）?time;//?傳輸速度
																			//?bytes/s
		double?totalTime?=?status.getContentLength（）?/?velocity;//?估計時間
		double?timeLeft?=?totalTime?-?time;//?剩余時間
		int?percent?=?（int）?（100?*?（double）?status.getByteRead（）?/?（double）?status
				.getContentLength（））;//?已完成的百分比
		double?length?=?（（double）?status.getByteRead（）?/?1024?/?1024）;//?已完成數(shù)
																		//?單位：M
		double?totalLength?=?（（double）?status.getContentLength（））?/?1024?/?1024;//?總長度：
																				//?單位：M
		//?格式:
		//?百分比||已完成數(shù)（M）||文件總長度（M）||傳輸速率（K）||已用時間（S）||估計總時間（S）||估計剩余時間（S）||正在上傳第幾個文件
		String?value?=?percent?+?“||“?+?length?+?“||“?+?totalLength?+?“||“
				+?velocity?+?“||“?+?time?+?“||“?+?totalTime?+?“||“?+?timeLeft
				+?“||“?+?status.getItems（）;
		resp.getWriter（）.print（value）;//?輸出給瀏覽器進度條

	}

	protected?void?doPost（HttpServletRequest?req?HttpServletResponse?resp）
			throws?ServletException?IOException?{
		UploadStatus?status?=?new?UploadStatus（）;//?上傳狀態(tài)
		UploadListener?listener?=?new?UploadListener（status）;//?監(jiān)聽器
		req.getSession（true）.setAttribute（“uploadstatus“?status）;
		ServletFileUpload?upload?=?new?ServletFileUpload（
				new?DiskFileItemFactory（））;//?解析
		upload.setProgressListener（listener）;//?設(shè)置上傳的listener
		
		
		try?{
//			upload.setSizeMax（10*1024*1024）;//設(shè)置大小，超出則拋出FileUploadException
			List?itemList?=?upload.parseRequest（req）;
			for?（Iterator?it?=?itemList.iterator（）;?it.hasNext（）;）?{
				FileItem?item?=?（FileItem）?it.next（）;
				if?（!item.isFormField（））//?如果是非表單數(shù)據(jù)
				{		
					if（item.getName（）.length（）<=0）return;//表示后面的文件域沒有選中文件
					
					this.log（“file?size:?“+（（double）item.getSize（）/1024/1024）+“M“）;
					this.log（“file?type：“+item.

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????629??2011-12-10?14:48??upload\.settings\org.eclipse.jdt.core.prefs

?????文件????????120??2011-12-10?14:48??upload\.settings\com.genuitec.jboss.ide.eclipse.xdoclet.run.prefs

?????文件???????1040??2011-12-10?14:48??upload\.settings\com.genuitec.eclipse.j2eedt.core.prefs

?????文件????????137??2011-12-10?14:48??upload\.settings\org.eclipse.ltk.core.refactoring.prefs

?????文件????????799??2011-12-08?22:01??upload\src\servlet\upload\UploadStatus.java

?????文件????????585??2011-12-08?22:09??upload\src\servlet\upload\UploadListener.java

?????文件???????4228??2011-12-10?14:35??upload\src\servlet\upload\ProgressUploadServlet.java

?????文件??????57779??2011-12-08?22:05??upload\WebRoot\WEB-INF\lib\commons-fileupload-1.2.1.jar

?????文件?????109043??2011-12-08?22:05??upload\WebRoot\WEB-INF\lib\commons-io-1.4.jar

?????文件???????1177??2011-12-10?14:43??upload\WebRoot\WEB-INF\classes\servlet\upload\UploadStatus.class

?????文件????????774??2011-12-10?14:43??upload\WebRoot\WEB-INF\classes\servlet\upload\UploadListener.class

?????文件???????4467??2011-12-10?14:43??upload\WebRoot\WEB-INF\classes\servlet\upload\ProgressUploadServlet.class

?????文件????????707??2011-12-10?14:44??upload\WebRoot\WEB-INF\web.xml

?????文件?????????36??2011-12-04?10:39??upload\WebRoot\meta-INF\MANIFEST.MF

?????文件???????2701??2011-12-10?13:47??upload\WebRoot\upload.jsp

?????文件??????72174??2011-12-08?22:57??upload\WebRoot\js\jquery-1.4.2.min.js

?????文件????????526??2011-12-08?22:05??upload\.classpath

?????文件????????292??2011-12-10?14:48??upload\.mymetadata

?????文件???????1281??2011-12-04?10:39??upload\.project

?????文件?????????66??2011-12-10?14:48??upload\.myumldata

?????目錄??????????0??2011-12-10?14:43??upload\WebRoot\WEB-INF\classes\servlet\upload

?????目錄??????????0??2011-12-10?14:43??upload\WebRoot\WEB-INF\classes\servlet

?????目錄??????????0??2011-12-08?22:00??upload\src\servlet\upload

?????目錄??????????0??2011-12-04?10:39??upload\WebRoot\WEB-INF\lib

?????目錄??????????0??2011-12-04?10:39??upload\WebRoot\WEB-INF\classes

?????目錄??????????0??2011-12-04?10:41??upload\src\servlet

?????目錄??????????0??2011-12-04?10:39??upload\WebRoot\WEB-INF

?????目錄??????????0??2011-12-04?10:39??upload\WebRoot\meta-INF

?????目錄??????????0??2011-12-08?22:57??upload\WebRoot\js

?????目錄??????????0??2011-12-04?10:39??upload\.settings

............此處省略7個文件信息