package?com.java.servlet;

import?java.io.File;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.io.InputStream;
import?java.io.OutputStream;
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;

/**
?*?
?*?@author?zero
?*
?*/
public?class?UploadHandleServlet?extends?HttpServlet?{
	@Override
	protected?void?doGet（HttpServletRequest?req?HttpServletResponse?resp）
			throws?ServletException?IOException?{
		
System.out.println（“get?the?request?from?the?page....“）;
		
		String?path?=?req.getRealPath（“/upload“）;//create?a?path?to?save?the?file?uploaded
		
System.out.println（path）;
		
		File?file?=?new?File（path）;
		file.mkdirs（）;
		??
????????DiskFileItemFactory?factory?=?new?DiskFileItemFactory（）;??
????????factory.setRepository（file）;???//set?temporary?file
??		factory.setSizeThreshold（1024*1024）;//set?temporary?file‘s?size
??		
??		ServletFileUpload?upload?=?new?ServletFileUpload（factory）;
??		upload.setHeaderEncoding（“UTF-8“）;//set?the?encoding?language
??		
??		try?{
??			List?list?=?（List）upload.parseRequest（req）;??//get?the?item?list?from?the?from?label
??	
??			for（FileItem?item?:?list）?{
??				String?name?=?item.getFieldName（）;???//get?the?file（field?or?real?file）‘s?name
??				if（item.isFormField（））?{
System.out.println（“just?a?simple?field....“）;
				String?value?=?item.getString（）;
System.out.println（name?+?“?=?“?+?value?）;
??					req.setAttribute（name?value）;
??				}else{
??					?String?value?=?item.getName（）;//this?item?is?real?file
??					?
System.out.println（“got?a?real?file“）;??	

??					?int?start?=?value.lastIndexOf（“\\“）;
??					?String?filename?=?value.substring（start+1）;//獲得真正的文件名字，通常這一步轉化只有在使用Opera瀏覽器時才需要使用
??					?
System.out.println（“file?name?:?“?+?filename）;
??					
??					?req.setAttribute（name??filename）;
??					
??					?File?f1?=?new?File（pathfilename）;
??					?
??					?OutputStream?os?=?new?FileOutputStream（f1）;
??					?InputStream?is?=?item.getInputStream（）;
??					?
??					?byte[]?buffer?=?new?byte[400];
??					?int?length;
??					?
??					?while（（length?=?is.read（buffer））!=-1）?{
??						?os.write（buffer?0?length）;
??					?}
??					?
??					?is.close（）;
??					?os.close（）;
System.out.println（“generate?a?file?in?the?server.....“）;
??		??	??		req.getRequestDispatcher（“index.jsp?&fileName=upload/“?+?filename）.forward（req?resp）;
??				}
??			}
??		}catch（Exception?e）?{
??			e.printStackTrace（）;
??		}
??		
	}
	
	@Override
	protected?void?doPost（HttpServletRequest?req?HttpServletResponse?resp）{
		try?{
			doGet（req?resp）;
		}?catch?（ServletException?e）?{
			e.printStack

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-03-30?19:03??FileUploadDownLoad\
?????文件?????????853??2015-03-30?19:03??FileUploadDownLoad\.classpath
?????文件????????1343??2015-03-30?19:09??FileUploadDownLoad\.project
?????目錄???????????0??2015-03-30?19:03??FileUploadDownLoad\.settings\
?????文件?????????522??2015-03-30?19:03??FileUploadDownLoad\.settings\.jsdtscope
?????文件?????????364??2015-03-30?19:03??FileUploadDownLoad\.settings\org.eclipse.jdt.core.prefs
?????文件?????????515??2015-03-30?19:03??FileUploadDownLoad\.settings\org.eclipse.wst.common.component
?????文件?????????348??2015-03-30?19:03??FileUploadDownLoad\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2015-03-30?19:03??FileUploadDownLoad\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2015-03-30?19:03??FileUploadDownLoad\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2015-03-30?20:21??FileUploadDownLoad\WebRoot\
?????目錄???????????0??2015-03-30?19:03??FileUploadDownLoad\WebRoot\meta-INF\
?????文件??????????39??2015-03-30?19:03??FileUploadDownLoad\WebRoot\meta-INF\MANIFEST.MF
?????目錄???????????0??2015-03-30?19:03??FileUploadDownLoad\WebRoot\WEB-INF\
?????目錄???????????0??2015-03-30?19:12??FileUploadDownLoad\WebRoot\WEB-INF\classes\
?????目錄???????????0??2015-03-30?19:12??FileUploadDownLoad\WebRoot\WEB-INF\classes\com\
?????目錄???????????0??2015-03-30?19:12??FileUploadDownLoad\WebRoot\WEB-INF\classes\com\java\
?????目錄???????????0??2015-03-30?19:12??FileUploadDownLoad\WebRoot\WEB-INF\classes\com\java\servlet\
?????文件????????4599??2015-03-30?21:12??FileUploadDownLoad\WebRoot\WEB-INF\classes\com\java\servlet\UploadHandleServlet.class
?????目錄???????????0??2015-03-30?19:03??FileUploadDownLoad\WebRoot\WEB-INF\lib\
?????文件???????57779??2015-03-30?19:03??FileUploadDownLoad\WebRoot\WEB-INF\lib\commons-fileupload-1.2.1.jar
?????文件???????87776??2015-03-30?19:03??FileUploadDownLoad\WebRoot\WEB-INF\lib\commons-io-1.3.2.jar
?????文件????????1019??2015-03-30?19:45??FileUploadDownLoad\WebRoot\WEB-INF\web.xml
?????文件????????1611??2015-03-30?21:00??FileUploadDownLoad\WebRoot\index.jsp
?????文件??????247351??2015-03-30?20:21??FileUploadDownLoad\WebRoot\jquery-2.1.1.js
?????目錄???????????0??2015-03-30?19:12??FileUploadDownLoad\src\
?????目錄???????????0??2015-03-30?19:12??FileUploadDownLoad\src\com\
?????目錄???????????0??2015-03-30?19:12??FileUploadDownLoad\src\com\java\
?????目錄???????????0??2015-03-30?19:12??FileUploadDownLoad\src\com\java\servlet\
?????文件????????3107??2015-03-30?21:12??FileUploadDownLoad\src\com\java\servlet\UploadHandleServlet.java