package?com.servlet;

import?java.io.File;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.io.InputStream;
import?java.io.OutputStream;
import?java.io.PrintWriter;
import?java.text.SimpleDateFormat;
import?java.util.Date;
import?java.util.Iterator;
import?java.util.List;
import?java.util.Random;

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

import?org.apache.commons.fileupload.FileItem;
import?org.apache.commons.fileupload.FileUploadException;
import?org.apache.commons.fileupload.disk.DiskFileItemFactory;
import?org.apache.commons.fileupload.servlet.ServletFileUpload;

import?com.google.gson.Gson;
import?com.zip.DeCompressUtil;

public?class?UploadFile?extends?HttpServlet?{

	private?static?final?long?serialVersionUID?=?1L;
	private?String?uploadpath?=?“upload“;//?文件上傳地址
	private?String?unpackpath?=?““;
	private?long?maxSize?=?100?*?1024?*?1024;//?最大文件大小100M
	private?String?limitfile?=?“ziprar“;//?限制上傳類型docdocxxlsxlsxppthtmhtmltxt
	private?Gson?gson?=?new?Gson（）;

	@Override
	protected?void?doGet（HttpServletRequest?req?HttpServletResponse?resp）?{
		try?{
			req.setCharacterEncoding（“UTF-8“）;
			resp.setContentType（“text/html;?charset=UTF-8“）;
			String?upid?=?req.getParameter（“upid“）;
			UploadState?state?=?（UploadState）?req.getSession（）.getAttribute（“upstate“）;
			String?s=““;
			if?（upid!=null&&state?!=?null?&&?upid.equals（state.getId（）））?{
				s?=?gson.toJson（state）;
			}
			System.out.println（state+“?GET：“+upid+“_“+s）;
			PrintWriter?out?=?resp.getWriter（）;
			out.write（s）;
			out.flush（）;
			out.close（）;
		}?catch?（Exception?e）?{
			e.printStackTrace（）;
		}
	}

	@Override
	protected?void?doPost（HttpServletRequest?req?HttpServletResponse?resp）?{
		try?{
			req.setCharacterEncoding（“UTF-8“）;
			resp.setContentType（“text/html;?charset=UTF-8“）;
			
			String?s=““;
			PrintWriter?out?=?resp.getWriter（）;
			boolean?ismulti=ServletFileUpload.isMultipartContent（req）;
			if（ismulti）{
				HttpSession?session=req.getSession（）;
				UploadState?us=（UploadState）session.getAttribute（“upstate“）;
				if?（us?==?null）?{
					us?=?new?UploadState（）;
					session.setAttribute（“upstate“?us）;
				}
				us.setTargetfile（““）;
				us.setErrormsg（““）;
				us.setTotalsize（0）;
				us.setUploadsize（0）;
				us.setState（0）;//?默認正常狀態(tài)
				long?length?=?req.getContentLength（）;
				us.setTotalsize（length）;
				if?（length?>?maxSize）?{
					setStatusMsg（req?-1?“文件內(nèi)容超過最大限制!“）;
					s?=?gson.toJson（us）;
				}?else?{
					processFileUpload（req?out）;
					s?=?gson.toJson（us）;
				}
			}
			
			out.write（s）;
			out.flush（）;
			out.close（）;
		}?catch?（Exception?e）?{
			e.printStackTrace（）;
		}
		

	}

	@SuppressWarnings（“unchecked“）
	public?void?processFileUpload（HttpServletRequest?r

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-03-14?10:03??MyUpload\
?????文件?????????965??2013-03-13?16:32??MyUpload\.classpath
?????目錄???????????0??2013-03-14?10:03??MyUpload\.myeclipse\
?????文件?????????294??2013-03-11?10:40??MyUpload\.mymetadata
?????文件????????1226??2013-03-11?11:36??MyUpload\.project
?????目錄???????????0??2013-03-14?10:03??MyUpload\.settings\
?????目錄???????????0??2013-03-14?10:03??MyUpload\ROOT\
?????目錄???????????0??2013-03-14?10:03??MyUpload\ROOT\meta-INF\
?????文件??????????39??2013-03-11?10:40??MyUpload\ROOT\meta-INF\MANIFEST.MF
?????目錄???????????0??2013-03-14?10:03??MyUpload\ROOT\WEB-INF\
?????目錄???????????0??2013-03-14?10:03??MyUpload\ROOT\WEB-INF\classes\
?????目錄???????????0??2013-03-14?10:03??MyUpload\ROOT\WEB-INF\classes\com\
?????目錄???????????0??2013-03-14?10:03??MyUpload\ROOT\WEB-INF\classes\com\servlet\
?????文件????????8067??2013-03-14?10:02??MyUpload\ROOT\WEB-INF\classes\com\servlet\UploadFile.class
?????文件????????1828??2013-03-14?10:02??MyUpload\ROOT\WEB-INF\classes\com\servlet\UploadProgressListener.class
?????文件????????1536??2013-03-14?10:02??MyUpload\ROOT\WEB-INF\classes\com\servlet\UploadState.class
?????目錄???????????0??2013-03-14?10:03??MyUpload\ROOT\WEB-INF\classes\com\zip\
?????文件????????4891??2013-03-14?10:02??MyUpload\ROOT\WEB-INF\classes\com\zip\AntZip.class
?????文件????????3430??2013-03-14?10:02??MyUpload\ROOT\WEB-INF\classes\com\zip\DeCompressUtil.class
?????目錄???????????0??2013-03-14?10:03??MyUpload\ROOT\WEB-INF\lib\
?????文件?????1323005??2013-03-12?13:48??MyUpload\ROOT\WEB-INF\lib\ant.jar
?????文件???????57779??2013-03-11?10:44??MyUpload\ROOT\WEB-INF\lib\commons-fileupload-1.2.1.jar
?????文件??????279781??2013-03-11?10:44??MyUpload\ROOT\WEB-INF\lib\commons-httpclient-3.0.1.jar
?????文件??????109043??2013-03-11?10:44??MyUpload\ROOT\WEB-INF\lib\commons-io-1.4.jar
?????文件??????261809??2013-03-11?10:44??MyUpload\ROOT\WEB-INF\lib\commons-lang-2.4.jar
?????文件???????60686??2013-03-11?10:44??MyUpload\ROOT\WEB-INF\lib\commons-logging-1.1.1.jar
?????文件??????189285??2013-03-11?12:02??MyUpload\ROOT\WEB-INF\lib\gson-2.2.2.jar
?????文件??????132819??2013-03-13?16:32??MyUpload\ROOT\WEB-INF\lib\java-unrar-0.3.jar
?????文件?????????620??2013-03-11?11:36??MyUpload\ROOT\WEB-INF\web.xml
?????文件????????3204??2013-03-13?13:06??MyUpload\ROOT\index.jsp
?????目錄???????????0??2013-03-14?10:03??MyUpload\ROOT\js\
............此處省略11個文件信息