I was trying to make a simple E-Commerce website using MVC architecture in java. Initially I made a controller servlet which is named TestingServlet,a web.xml file,a bean class in the package com.bean under classes folder named DbBean and a Default.jsp,Header.jsp,Menu.jsp to start with. I compiled bean and the servlet classes. Then finally when I deployed the application on WebLogic server and run it, I got the following error-
As you can see in the log that it says it failed to compile JSP JSP/Menu.jsp which means the problem must be with Menu.jsp. Moreover, it says that in line 28 bean cannot be resolved. So, I checked that part of the code but it looks fine to me. What is causing the problem?
Following are all the files that I made- TestingServlet.java
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.bean.DbBean;
public class TestingServlet extends HttpServlet
{
public void init(ServletConfig conf)
{
System.out.println("Initiallizing ControllerServlet");
ServletContext ctx = conf.getServletContext();
ctx.setAttribute("base",conf.getInitParameter("base"));
System.out.println("base = " +conf.getInitParameter("base"));
ctx.setAttribute("imageUrl",conf.getInitParameter("imageUrl"));
System.out.println("imageUrl = " +conf.getInitParameter("imageUrl"));
DbBean bean = new DbBean();
bean.setDbUrl(conf.getInitParameter("dbUrl"));
bean.setDbUserName(conf.getInitParameter("userName"));
bean.setDbPassword(conf.getInitParameter("password"));
ctx.setAttribute("bean",bean);
System.out.println("bean object successfully made,its properties set
and set in app scope..");
try
{
Class.forName(conf.getInitParameter("jdbcDriver"));
System.out.println("Driver Class Loaded Successfully");
}
catch(Exception e)
{
System.out.println("Could not load the driver class");
}
}
protected void doGet(HttpServletRequest req , HttpServletResponse res)
throws ServletException,IOException
{
doPost(req,res);
System.out.println("in doGet method");
}
protected void doPost(HttpServletRequest req , HttpServletResponse res)
throws ServletException,IOException
{
System.out.println("in doPost method");
String base = "/jsp/";
String url = base + "Default.jsp";
String action = req.getParameter("action");
if(action!=null)
{
if(action.equals("search"))
url = base + "SearchResults.jsp";
else if(action.equals("browseCatalog"))
url = base + "BrowseCatalog.jsp";
if(action.equals("productDetails"))
url = base + "ProductDetails.jsp";
if(action.equals("addShoppingItem") ||
action.equals("updateShoppingItem") ||
action.equals("deleteShoppingItem") ||
action.equals("displayShoppingCart"))
url = base + "ShoppingCart.jsp";
if(action.equals("checkOut"))
url = base + "CheckOut.jsp";
if(action.equals("order"))
url = base + "Order.jsp";
}
System.out.println("if part successfully executed");
RequestDispatcher rd = req.getRequestDispatcher(url);
System.out.println("RD object made successfully..");
rd.forward(req,res);
System.out.println("forward successfully executed..");
}
}
DbBean.java
package com.bean;
import java.sql.*;
import java.util.Hashtable;
public class DbBean
{
public String dbUrl = "";
public String dbUserName = "";
public String dbPassword = "";
public void setDbUrl(String url)
{
dbUrl = url;
}
public void setDbUserName(String userName)
{
dbUserName = userName;
}
public void setDbPassword(String password)
{
dbPassword = password;
}
public Hashtable getCategories()
{
Hashtable categories = new Hashtable();
try
{
Connection conn =
DriverManager.getConnection(dbUrl,dbUserName,dbPassword);
Statement stmt = conn.createStatement();
String sql = "select CategoryId,Category from Categories" +" ";
ResultSet rs = stmt.executeQuery(sql);
while(rs.next())
{
categories.put(rs.getString(1),rs.getString(2));
}
rs.close();
stmt.close();
conn.close();
}
catch(SQLException e)
{}
return categories;
}
}
Default.jsp
<html>
<head>
<title>Welcome</title>
</head>
<body>
<table>
<tr>
<td colspan="2">
<jsp:include page="Header.jsp" flush = "true"/>
</td>
</tr>
<tr>
<td>
<jsp:include page="Menu.jsp" flush="true"/>
</td>
<td valign="top">
<H2>WELCOME TO MY E-MALL.</H2>
</td>
</tr>
</table>
</body>
</html>
Menu.jsp
<%@ page import="java.util.*" %>
<jsp : useBean id = "bean" scope = "application" class="com.bean.DbBean" />
<%
String base = (String)application.getAttribute("base");
%>
<table cellspacing="0" cellpadding="5" width="150" border="0">
<tr>
<td bdcolor="F6F6F6">
<font face="Verdana">Search</font>
<form>
<input type="hidden" name="action" value="search">
<input type="text" name="keyword" size="10">
<input type="submit" value="Go">
</form>
</td>
</tr>
<tr >
<td bgcolor="F6F6F6">
<font face="Verdana">
Categories:
</font>
</td>
</tr>
<tr valign="top">
<td bgcolor="F6F6F6">
<%
Hashtable categories = bean.getCategories();
Enumeration categoryIds = categories.keys();
while(categoryIds.hasMoreElements())
{
Object categoryId = categoryIds.nextElement();
out.println("<a href=" +base +"?
action=browseCatalog&categoryId=" +categoryId.toString()
+">" +categories.get(categoryId) +"</a><br>");
}
%>
</td>
</tr>
</table>
