Getting 404 when i forward request using request dispetcher

Hi,

I have written a servlet which forward the request to jsp page, but i am getting 404 error code. Can anybody help me solving this issue.

Bellow is my servlet mapping in DD

Bellow is my servlet code.

public class ExcelUploadServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

private static final String FILE_UPLOAD = "/ExcelUploadPOC/upload/file";

private static final String EXCEL_UPLOAD = "/ExcelUploadPOC/upload/excel";

private static final String KEY_FILE_LOCATION = "file.location";

protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		String requestURI = req.getRequestURI();
		FileItemFactory factory = null;
		ServletFileUpload upload = null;
		try {
			boolean isMultipart = ServletFileUpload.isMultipartContent(req);
			if (isMultipart) {
				factory = new DiskFileItemFactory();
				upload = new ServletFileUpload(factory);
				List<FileItem> items = upload.parseRequest(req);
				Iterator<FileItem> iter = items.iterator();
				while (iter.hasNext()) {
					FileItem item = (FileItem) iter.next();
					if (!(item.isFormField())) {
						req.setAttribute("cellTypeString", Cell.CELL_TYPE_STRING);
						req.setAttribute("cellTypeBoolean", Cell.CELL_TYPE_BOOLEAN);
						req.setAttribute("cellTypeNumeric", Cell.CELL_TYPE_NUMERIC);
						if (EXCEL_UPLOAD.equalsIgnoreCase(requestURI)) {
							req.setAttribute("cellList", processUploadedFile(item));
							System.out.println("EXCEL UPLOAD 1 ");
							req.getRequestDispatcher("/ExcelUploadPOC/WebContent/upload.jsp").forward(req, resp);
						} else if (FILE_UPLOAD.equalsIgnoreCase(requestURI)) {
							File file1 = new File(item.getName());
							String uploadLocation = Utility.getAppProperty(KEY_FILE_LOCATION);
							File file = new File(uploadLocation + File.separator + file1.getName());
							item.write(file);
							file = new File(uploadLocation, file1.getName());
							InputStream inputStream = new FileInputStream(file);
							req.setAttribute("cellList", processUploadedFile(inputStream));
							req.getRequestDispatcher("/ExcelUploadPOC/upload_file.jsp").forward(req, resp);
						}
					}
				}
			} else {
				System.out.println("Is not a multipart request");
			}
		} catch (FileUploadException e) {
			e.printStackTrace();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			upload = null;
			factory = null;
		}
	}

And below is my JSP which is in the application root folder.

<%@ page language="java" contentType="text/html;charset=UTF-8" isELIgnored="false"%>
<%@ taglib uri="http://java.sun.com/jstl/core_rt" prefix="c" %>
<html>
<head>
</head>
<body>
<form name="uploadForm" method="post" action="./upload/excel" enctype="multipart/form-data">
	<table>
		<tr>
			<td>
				<input type="file" name="filePath" id="filePath" />
			</td>
			<td>
				<input type="submit" name="uploadButton" value="Upload" />
			</td>
		</tr>
	</table>
	<table border="1">
		<c:forEach var="cells" items="${requestScope.cellList }">
			<tr>
				<c:forEach var="cell" items="${cells }">
					<c:choose>
						<c:when test="${requestScope.cellTypeString == cell.cellType}">
							<td>
								${cell.stringCellValue }
							</td>						
						</c:when>
						<c:when test="${requestScope.cellTypeNumeric == cell.cellType}">
							<td>
								${cell.numericCellValue }
							</td>
						</c:when>
						<c:when test="${requestScope.cellTypeBoolean == cell.cellType}">
							<td>
								${cell.booleanCellValue }
							</td>
						</c:when>
					</c:choose>
				</c:forEach>
			</tr>
		</c:forEach>
	</table>
	
	
</form>
</body>
</html>

I am sending request from the same jsp and forwarding the request to the same jsp i am fetching some data and putting in the request attribute to display it on jsp.

Console

It seems simple and Should work.
I tried on my system and it did.
The only way you get a 404 here is when the folder structure /ExcelUploadPOC/WebContent/upload.jsp
is under web-inf i.e. you have places your JSP
here: <Tomcat-Dir> \webapps\<WebApplicationName>\WEB-INF\ExcelUploadPOC/WebContent/upload.jsp
put it here it will work:
<Tomcat-Dir> \webapps\<WebApplicationName>\ExcelUploadPOC/WebContent/upload.jsp

Let me know if it solves the issue.

Is the tag "<servlet>" closed? Up there in the code you posted still opened...

Hebert Coelho wrote:Is the tag "<servlet>" closed? Up there in the code you posted still opened...

yeah the tag is closed, i just missed it while copy on the forum.

Prashant Hurria wrote:It seems simple and Should work.
I tried on my system and it did.
The only way you get a 404 here is when the folder structure /ExcelUploadPOC/WebContent/upload.jsp
is under web-inf i.e. you have places your JSP
here: <Tomcat-Dir> \webapps\<WebApplicationName>\WEB-INF\ExcelUploadPOC/WebContent/upload.jsp
put it here it will work:
<Tomcat-Dir> \webapps\<WebApplicationName>\ExcelUploadPOC/WebContent/upload.jsp

Let me know if it solves the issue.

Hi Prashant,

Actually the JSPs are not underthe WEB-INF folder. I can access the jsp using below url

http://localhost:7001/ExcelUploadPOC/upload.jsp

I thought it has the problem with build, but even after cleaning, rebuild, restarting the weblogic, restarting the IDE, restarting the computer issue is still persist.

I tested it on Tomcat. I have seen people facing strange issues on JBoss,Weblogic and most of the time it turns out to be problems like using \ insted of / and other similar things. I will ask a friend who faced a similar issue and will get back to you. In the meanwhile you can google the problem with Weblogic as additional keyword (I am sure you would have done already.)

Ya i have already done the google exercise... Currently i am setting attributes in session and using response.sendRedirect(String). And its working fine as a temperory workaround.