/**
?*?
?*?author?:?wubl
?*?
?*?date:?2018/4/23
?*?
?*/

package?com.demo;

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

import?javax.servlet.ServletException;
import?javax.servlet.annotation.MultipartConfig;
import?javax.servlet.annotation.WebServlet;
import?javax.servlet.http.HttpServlet;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
import?javax.servlet.http.Part;

@MultipartConfig?
@WebServlet（“/PortraitServlet“）
public?class?PortraitServlet?extends?HttpServlet?{

	protected?void?doGet（HttpServletRequest?request?HttpServletResponse?response）?throws?ServletException?IOException?{
		response.setContentType（“application/text;?charset=utf-8“）;
		PrintWriter?out?=?response.getWriter（）;
		
		final?Part?filePart?=?request.getPart（“headerImg“）;??
????????if?（filePart?==?null）?{??
????????????response.getWriter（）.print（“未指定文件“）;??
????????????return;??
????????}??
??????????
????????if?（filePart.getSize（）?>?1024?*?500）?{??
????????????response.getWriter（）.print（“文件太大“）;??
????????????return;??
????????}??
????????String?filename?=?filePart.getSubmittedFileName（）;//獲取上傳文件名??
//			System.out.println（filename）;
		String?realPath?=?this.getServletContext（）.getRealPath（“/avatorImg“）;??
			System.out.println（realPath）;
????????//獲取web目錄的真實物理路徑，文件將保存在upload文件夾下??
????????File?dir=new?File（realPath）;??
????????if（!dir.exists（））{??
????????????dir.mkdir（）;//如果目錄不存在，則創(chuàng)建??
????????}??
??
????????filePart.write（realPath?+?“/“?+?filename）;//將文件寫入磁盤??
??????????????
????????out.print（1）;??
	}

	
	protected?void?doPost（HttpServletRequest?request?HttpServletResponse?response）?throws?ServletException?IOException?{
		//?TODO?Auto-generated?method?stub
		doGet（request?response）;
	}

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-04-22?21:03??HeadPortraitDemo\
?????文件?????????842??2018-04-22?21:03??HeadPortraitDemo\.classpath
?????文件?????????916??2018-04-22?21:03??HeadPortraitDemo\.project
?????目錄???????????0??2018-04-22?22:47??HeadPortraitDemo\.settings\
?????文件?????????567??2018-04-22?21:03??HeadPortraitDemo\.settings\.jsdtscope
?????文件??????????69??2018-04-22?22:47??HeadPortraitDemo\.settings\org.eclipse.core.resources.prefs
?????文件?????????364??2018-04-22?21:03??HeadPortraitDemo\.settings\org.eclipse.jdt.core.prefs
?????文件?????????500??2018-04-22?21:03??HeadPortraitDemo\.settings\org.eclipse.wst.common.component
?????文件?????????345??2018-04-22?21:03??HeadPortraitDemo\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2018-04-22?21:03??HeadPortraitDemo\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2018-04-22?21:03??HeadPortraitDemo\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2018-04-22?21:03??HeadPortraitDemo\build\
?????目錄???????????0??2018-04-23?12:59??HeadPortraitDemo\build\classes\
?????目錄???????????0??2018-04-23?12:59??HeadPortraitDemo\build\classes\com\
?????目錄???????????0??2018-04-23?12:59??HeadPortraitDemo\build\classes\com\demo\
?????文件????????2512??2018-04-23?14:06??HeadPortraitDemo\build\classes\com\demo\PortraitServlet.class
?????目錄???????????0??2018-04-23?12:59??HeadPortraitDemo\src\
?????目錄???????????0??2018-04-23?12:59??HeadPortraitDemo\src\com\
?????目錄???????????0??2018-04-23?12:59??HeadPortraitDemo\src\com\demo\
?????文件????????1949??2018-04-23?14:06??HeadPortraitDemo\src\com\demo\PortraitServlet.java
?????目錄???????????0??2018-04-23?13:01??HeadPortraitDemo\WebContent\
?????目錄???????????0??2018-04-23?13:01??HeadPortraitDemo\WebContent\css\
?????文件????????1668??2018-04-22?22:49??HeadPortraitDemo\WebContent\css\portrait.css
?????文件?????????990??2018-04-27?23:11??HeadPortraitDemo\WebContent\index.jsp
?????目錄???????????0??2018-04-23?13:02??HeadPortraitDemo\WebContent\js\
?????文件???????86927??2018-02-03?16:25??HeadPortraitDemo\WebContent\js\jquery-3.3.1.min.js
?????文件????????2297??2018-04-23?21:34??HeadPortraitDemo\WebContent\js\portrait.js
?????目錄???????????0??2018-04-22?21:03??HeadPortraitDemo\WebContent\meta-INF\
?????文件??????????39??2018-04-22?21:03??HeadPortraitDemo\WebContent\meta-INF\MANIFEST.MF
?????目錄???????????0??2018-04-22?22:32??HeadPortraitDemo\WebContent\WEB-INF\
?????目錄???????????0??2018-04-22?21:03??HeadPortraitDemo\WebContent\WEB-INF\lib\
............此處省略1個文件信息