package?com.upload;

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

public?class?JqueryFileUploadServlet?extends?HttpServlet?{

	/**
	?*?
	?*/
	private?static?final?long?serialVersionUID?=?1L;

	/**
	?*?The?doPost?method?of?the?servlet.?

	?*?
	?*?This?method?is?called?when?a?form?has?its?tag?value?method?equals?to
	?*?post.
	?*?
	?*?@param?request
	?*????????????the?request?send?by?the?client?to?the?server
	?*?@param?response
	?*????????????the?response?send?by?the?server?to?the?client
	?*?@throws?ServletException
	?*?????????????if?an?error?occurred
	?*?@throws?IOException
	?*?????????????if?an?error?occurred
	?*/
	public?void?doPost（HttpServletRequest?request?HttpServletResponse?response）
			throws?ServletException?IOException?{

		response.setCharacterEncoding（“UTF-8“）;?//?設置處理請求的編碼方式
		
//		在Response頭中指定Content-Type為text/html，而并非text/html，是可以解決問題的。這樣返回給客戶端的是一個JSON字符串（并非JSON對象）
//		，無需IE來解析。隨后，使用JSON.parse（）函數將JSON字符串解析為JSON對象即可。
//		response.setContentType（“application/json;charset=UTF-8“）;?//?設置Content-Type字段值
		response.setContentType（“text/html;charset=UTF-8“）;?//?設置Content-Type字段值
		PrintWriter?out?=?response.getWriter（）;

		//?實例化一個硬盤文件工廠，用來配置文件上傳組件ServletFileUpload

		FileItemFactory?factory?=?new?DiskFileItemFactory（）;
		ServletFileUpload?upload?=?new?ServletFileUpload（factory）;?//?利用硬盤文件工廠配置文件上傳組件
		List?items?=?null;?//?存放FileItem對象
		try?{?//?獲取文件的FileItem對象，即表單域分為普通表單域和文件域
			items?=?upload.parseRequest（request）;
		}?catch?（FileUploadException?e）?{
			e.printStackTrace（）;
		}
		String?path?=?null;?//?存放上傳文件的完整名稱，包括路徑。
		String?filename?=?“?“;?//?存放文件名
		InputStream?is?=?null;
		//?循環處理上傳文件
		for?（FileItem?item?:?items）?{
			if?（item.isFormField（））?{
				if?（item.getFieldName（）.equals（“filename“））?{
					if?（!item.getString（）.equals（““））
						filename?=?item.getString（“UTF-8“）;
				}
			}?else?if?（item.getName（）.trim（）?!=?null
					&&?!item.getName（）.trim（）.equals（“?“））?{
				path?=?item.getName（）;//?得到文件完整路徑
				filename?=?path.substring（path.lastIndexOf（“\\“）?+?1）;
				is?=?item.getInputStream（）;?//?獲得上傳文件的InputStream對象
			}
		}
		String?pathName?=?request.getRealPath（“/“）?+?filename;
		if?（new?File（pathName）.exists（））?{
//			out.println（“該文件已經存在，請為文件指定一個新的文件名！“）;
			out.println（“{\“Result\“:\“-2\“}“）;
		}?else?if?（!pathName.equals（““））?{
			FileOutputStream?fos?=?ne

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

?????文件????????526??2015-01-30?17:38??uploadDemo\.classpath

?????文件????????303??2015-01-30?17:33??uploadDemo\.mymetadata

?????文件???????1228??2015-01-30?17:35??uploadDemo\.project

?????文件???????3908??2015-02-28?15:32??uploadDemo\src\com\upload\JqueryFileUploadServlet.java

?????文件???????3414??2015-02-28?14:04??uploadDemo\src\com\upload\NormalFileUploadServlet.java

?????文件???????2727??2015-02-28?13:55??uploadDemo\WebRoot\css\WizardWuUpload_Blue.css

?????文件???????2621??2015-02-28?13:55??uploadDemo\WebRoot\css\WizardWuUpload_Green.css

?????文件???????2641??2015-02-28?13:55??uploadDemo\WebRoot\css\WizardWuUpload_Silver.css

?????文件????????511??2015-02-28?15:03??uploadDemo\WebRoot\index.jsp

?????文件???????3092??2015-02-28?15:40??uploadDemo\WebRoot\jqupload_single.jsp

?????文件??????94840??2015-02-28?13:55??uploadDemo\WebRoot\js\jquery-1.7.2.min.js

?????文件??????39718??2015-02-28?13:55??uploadDemo\WebRoot\js\jquery.form.js

?????文件??????17898??2015-02-28?15:39??uploadDemo\WebRoot\js\json2.js

?????文件???????7917??2015-02-28?15:58??uploadDemo\WebRoot\js\WizardWuUpload.js

?????文件?????????39??2015-01-30?17:33??uploadDemo\WebRoot\meta-INF\MANIFEST.MF

?????文件????????748??2015-02-28?14:05??uploadDemo\WebRoot\normal.jsp

?????文件???????3971??2015-02-28?15:32??uploadDemo\WebRoot\WEB-INF\classes\com\upload\JqueryFileUploadServlet.class

?????文件???????3963??2015-02-28?14:04??uploadDemo\WebRoot\WEB-INF\classes\com\upload\NormalFileUploadServlet.class

?????文件??????69002??2015-01-30?17:38??uploadDemo\WebRoot\WEB-INF\lib\commons-fileupload-1.3.1.jar

?????文件?????185140??2015-01-30?17:38??uploadDemo\WebRoot\WEB-INF\lib\commons-io-2.4.jar

?????文件???????1005??2015-02-28?14:06??uploadDemo\WebRoot\WEB-INF\web.xml

?????目錄??????????0??2015-02-28?14:06??uploadDemo\WebRoot\WEB-INF\classes\com\upload

?????目錄??????????0??2015-02-12?09:32??uploadDemo\WebRoot\WEB-INF\classes\com

?????目錄??????????0??2015-02-28?14:06??uploadDemo\src\com\upload

?????目錄??????????0??2015-02-12?09:32??uploadDemo\WebRoot\WEB-INF\classes

?????目錄??????????0??2015-01-30?17:38??uploadDemo\WebRoot\WEB-INF\lib

?????目錄??????????0??2015-01-30?17:57??uploadDemo\src\com

?????目錄??????????0??2015-02-28?13:55??uploadDemo\WebRoot\css

?????目錄??????????0??2015-02-28?15:39??uploadDemo\WebRoot\js

?????目錄??????????0??2015-01-30?17:33??uploadDemo\WebRoot\meta-INF

............此處省略8個文件信息