package?com.longtop.picc.fileUpload.servlet;

import?java.io.IOException;
import?java.io.PrintWriter;

import?javax.servlet.ServletException;
import?javax.servlet.http.HttpServlet;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;

import?org.apache.commons.fileupload.*;
import?java.util.*;
import?java.util.regex.*;
import?java.io.*;
import?org.apache.commons.fileupload.servlet.*;
import?org.apache.commons.fileupload.disk.DiskFileItemFactory;

public?class?FileUpload?extends?HttpServlet?{

	private?String?uploadPath?=?““;?//?用于存放上傳文件的目錄

	private?File?tempPath?=?new?File（
			“D:\\“）;?//?用于存放臨時文件的目錄

	public?void?doPost（HttpServletRequest?req?HttpServletResponse?res）
			throws?ServletException?IOException?{
		res.setContentType（“text/html;?charset=GB18030“）;
		PrintWriter?out?=?res.getWriter（）;
		System.out.println（req.getContentLength（））;
		System.out.println（req.getContentType（））;
		DiskFileItemFactory?factory?=?new?DiskFileItemFactory（）;
		//?maximum?size?that?will?be?stored?in?memory
		//?允許設置內存中存儲數據的門限，單位：字節
		factory.setSizeThreshold（4096）;
		//?the?location?for?saving?data?that?is?larger?than?getSizeThreshold（）
		//?如果文件大小大于SizeThreshold，則保存到臨時目錄
		factory.setRepository（new?File（
				“D:\\“））;

		ServletFileUpload?upload?=?new?ServletFileUpload（factory）;
		//?maximum?size?before?a?FileUploadException?will?be?thrown
		//?最大上傳文件，單位：字節
		upload.setSizeMax（1000000）;
		try?{
			List?fileItems?=?upload.parseRequest（req）;
			//?assume?we?know?there?are?two?files.?The?first?file?is?a?small
			//?text?file?the?second?is?unknown?and?is?written?to?a?file?on
			//?the?server
			Iterator?iter?=?fileItems.iterator（）;

			//?正則匹配，過濾路徑取文件名
			String?regExp?=?“.+\\\\（.+）$“;

			//?過濾掉的文件類型
			String[]?errorType?=?{?“.exe“?“.com“?“.cgi“?“.asp“?};
			Pattern?p?=?Pattern.compile（regExp）;
			String?itemNo?=?““;//?文件存放路徑
			while?（iter.hasNext（））?{
				FileItem?item?=?（FileItem）?iter.next（）;

				//?忽略其他不是文件域的所有表單信息
				if?（!item.isFormField（））?{
					String?name?=?item.getName（）;
					long?size?=?item.getSize（）;
					if?（（name?==?null?||?name.equals（““））?&&?size?==?0）
						continue;
					Matcher?m?=?p.matcher（name）;
					boolean?result?=?m.find（）;
					if?（result）?{
						for?（int?temp?=?0;?temp?							if?（m.group（1）.endsWith（errorType[temp]））?{
								throw?new?IOException（name?+?“:?wrong?type“）;
							}
						}
						try?{

							//?保存上傳的文件到指定的目錄

							//?在下文中上傳文件至數據庫時，將對這里改寫
							item.write（new?File（“d:\\“?+?m.group（1）））;

							out.print（name?+?“  “?+?size?+?“
“）;

						}?catch?（Exception?e）?{
							out.println（e）;
						}

					}?else?{
						throw?new?IOException（“fail?to?upload“）;
					}
				}
			}
		}?catch?（IOException?e）?{
			out.println（e）;
		}?catch?（FileUploadException?e）?{
			out.println（e）;
		}
	}

	public?void?init（）?throws?ServletException?{
		t

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

?????文件????????472??2009-04-10?10:04??test\.classpath

?????文件????????849??2009-04-10?10:04??test\.project

?????文件????????334??2009-04-10?10:04??test\.settings\org.eclipse.jdt.core.prefs

?????文件????????210??2009-04-10?10:04??test\.settings\org.eclipse.jst.common.project.facet.core.prefs

?????文件????????436??2009-04-10?10:04??test\.settings\org.eclipse.wst.common.component

?????文件????????229??2009-04-10?10:04??test\.settings\org.eclipse.wst.common.project.facet.core.xml

?????文件???????4472??2009-05-19?16:43??test\build\classes\com\longtop\picc\fileUpload\servlet\FileUpload.class

?????文件???????3381??2009-05-19?11:04??test\src\com\longtop\picc\fileUpload\servlet\FileUpload.java

?????文件????????138??2009-05-19?10:57??test\WebContent\images\icon_close.gif

?????文件????????131??2009-05-19?11:01??test\WebContent\images\icon_open.gif

?????文件???????2391??2009-05-19?11:02??test\WebContent\jsp\index.html

?????文件?????????39??2009-04-10?10:04??test\WebContent\meta-INF\MANIFEST.MF

?????文件??????31825??2009-05-19?10:20??test\WebContent\WEB-INF\lib\commons-fileupload.jar

?????文件?????109043??2009-05-19?10:20??test\WebContent\WEB-INF\lib\commons-io-1.4.jar

?????文件????1232111??2009-04-23?16:56??test\WebContent\WEB-INF\lib\iText.jar

?????文件?????331811??2009-04-23?16:56??test\WebContent\WEB-INF\lib\iTextAsian.jar

?????文件??????94457??2009-05-19?10:27??test\WebContent\WEB-INF\lib\javax.servlet.jar

?????文件??????47867??2009-05-19?10:27??test\WebContent\WEB-INF\lib\javax.servlet.jsp.jar

?????文件???????1105??2009-05-19?10:36??test\WebContent\WEB-INF\web.xml

?????目錄??????????0??2009-05-19?16:57??test\build\classes\com\longtop\picc\fileUpload\servlet

?????目錄??????????0??2009-05-19?16:57??test\build\classes\com\longtop\picc\fileUpload

?????目錄??????????0??2009-05-19?16:57??test\src\com\longtop\picc\fileUpload\servlet

?????目錄??????????0??2009-05-19?16:57??test\build\classes\com\longtop\picc

?????目錄??????????0??2009-05-19?16:57??test\src\com\longtop\picc\fileUpload

?????目錄??????????0??2009-05-19?16:57??test\build\classes\com\longtop

?????目錄??????????0??2009-05-19?16:57??test\src\com\longtop\picc

?????目錄??????????0??2009-05-19?16:57??test\build\classes\com

?????目錄??????????0??2009-05-19?16:57??test\src\com\longtop

?????目錄??????????0??2009-05-19?16:57??test\WebContent\WEB-INF\lib

?????目錄??????????0??2009-05-19?16:57??test\build\classes

............此處省略13個文件信息