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Using the Cos component to implement uploading attachments in JSP with Jsp&servlet refactoring project
fileupload.jsp--Fileuploadcontroller.java-fileuploadresult.jsp
fileupload.jsp
<%@ Page Language="Java"ContentType="text/html; Charset=utf-8"pageencoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd "><HTML><Head><Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8"><title>File Upload Demo</title><Linkhref= "/web01//css/main.css"rel= "stylesheet"type= "Text/css" /></Head><%@ include file="top.jsp" %><Body> <formAction= "/web01/fileuploadcontroller"name= "Frm1"Method= "POST"enctype= "Multipart/form-data">file name:<inputtype= "File"name= "File1"size= " the"><BR> <inputtype= "Submit"value= "Upload"> </form></Body><%@ include file="bottom.jsp" %></HTML>
Fileuploadcontroller.java
PackageCom.test.IF.controller;Importjava.io.IOException;Importjava.util.Enumeration;Importjavax.servlet.ServletException;ImportJavax.servlet.annotation.WebServlet;ImportJavax.servlet.http.HttpServlet;Importjavax.servlet.http.HttpServletRequest;ImportJavax.servlet.http.HttpServletResponse;Importcom.oreilly.servlet.MultipartRequest;ImportCom.oreilly.servlet.multipart.DefaultFileRenamePolicy;/*** Servlet Implementation class Fileuploadcontroller*/@WebServlet ("/fileuploadcontroller") Public classFileuploadcontrollerextendsHttpServlet {Private Static Final LongSerialversionuid = 1L; /** * @seeHttpservlet#httpservlet ()*/ PublicFileuploadcontroller () {Super(); } /** * @seeHttpservlet#doget (httpservletrequest request, httpservletresponse response)*/ protected voidDoget (HttpServletRequest request, httpservletresponse response)throwsservletexception, IOException { This. DoPost (request, response); } /** * @seeHttpservlet#dopost (httpservletrequest request, httpservletresponse response)*/ protected voidDoPost (HttpServletRequest request, httpservletresponse response)throwsservletexception, IOException {//path to save the fileString Savepath = "d:/test/uploadfile/"; intSizeLimit = 30 * 1024 * 1024; String FileName= ""; String Filesystemname= ""; LongFileSize = 0; Multipartrequest Multi=NewMultipartrequest (Request, Savepath, SizeLimit, "UTF-8",NewDefaultfilerenamepolicy ()); Enumeration FileNames=Multi.getfilenames (); while(Filenames.hasmoreelements ()) {FileName=(String) filenames.nextelement (); Filesystemname=Multi.getfilesystemname (fileName); if(Filesystemname! =NULL) {fileSize= Multi.getfile (fileName). Length ()/1024; }} request.setattribute ("Filesystemname", Filesystemname); Request.setattribute ("FileSize", fileSize); Request.getrequestdispatcher ("/view/fileuploadresult.jsp"). Forward (request, response); }}
fileuploadresult.jsp
<%@ Page Language="Java"ContentType="text/html; Charset=utf-8"pageencoding="UTF-8"%><%@ taglib URI="Http://java.sun.com/jsp/jstl/core"prefix="C" %><!DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd "><HTML><Head><Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8"><title>File Upload Demo</title><Linkhref= "/web01//css/main.css"rel= "stylesheet"type= "Text/css" /></Head><%@ include file="top.jsp" %><Body>File Upload Successful! <BR>file name:<C:outvalue= "${requestscope.filesystemname}"></C:out><BR>File Size:<C:outvalue= "${requestscope.filesize}"></C:out></Body><%@ include file="bottom.jsp" %></HTML>
"Refactoring" implements JSP upload attachments using COS components
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