Index.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Index</title>
</head>
<body>
<form method="get" action="loggin">
<h3>Enter the Vehicle ID</h3> <input type="text" name="vehicleID" />
<br>
<br>
<input type="submit" value="Submit"/>
</form>
</body>
</html>
logginServlet.java
package org.nissan.abhi;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.nissan.abhi.dto.Cars;
import org.nissan.service.logginservice;
public class logginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public void doGet(HttpServletRequest req,HttpServletResponse res)
throws ServletException
{
try
{
doPost(req,res);
}
catch(IOException e)
{
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String vehicleID;
response.setContentType("text/html");
vehicleID= request.getParameter("vehicleID");
logginservice lgnsrv = new logginservice();
boolean result = lgnsrv.authenticate(vehicleID);
if(result)
{
Cars car2= lgnsrv.getCarDetails(vehicleID);
RequestDispatcher dispatcher = request.getRequestDispatcher("success.jsp");
dispatcher.forward(request, response);
return;
}
else
{
response.sendRedirect("index.jsp");
return;
}
}
}
logginservice.java
package org.nissan.service;
import java.util.HashMap;
import org.nissan.abhi.dto.Cars;
public class logginservice {
HashMap<String,String> cars = new HashMap<String,String>();
public logginservice()
{
cars.put("1234","Nissan");
cars.put("4567","Ford");
cars.put("8910","Dodge");
}
public boolean authenticate(String VehicleID){
if(VehicleID == null || VehicleID.trim()=="")
{
return false;
}
return true;
}
public Cars getCarDetails(String vehicleID)
{
Cars car1 = new Cars();
car1.setVehicleID(vehicleID);
car1.setCarName(cars.get(vehicleID));
return car1;
}
}
Success.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1" import="org.nissan.abhi.dto.Cars" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Success</title>
</head>
<body>
<h5>Loggin Successful</h5>
<%
Cars car =(Cars) request.getAttribute("cars");
%>
Vehicle ID : <%=car.getVehicleID()%>
Car Type : <%=car.getCarName()%>
</body>
</html>
Cars.Java
package org.nissan.abhi.dto;
public class Cars {
private String vehicleID;
private String carName;
public String getVehicleID() {
return vehicleID;
}
public void setVehicleID(String vehicleID) {
this.vehicleID = vehicleID;
}
public String getCarName() {
return carName;
}
public void setCarName(String carName) {
this.carName = carName;
}
}
Web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Nissan1</display-name>
<
servlet>
<servlet-name>logginServlet</servlet-name>
<servlet-class>org.nissan.abhi.logginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>logginServlet</servlet-name>
<url-pattern>/loggin</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
I’m getting the Error:
HTTP Status 500 -
________________________________________
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for
JSP:
An error occurred at line: 6 in the generated
java file
Only a type can be imported. org.nissan.abhi.dto.Cars resolves to a package
An error occurred at line: 12 in the jsp file: /success.jsp
Cars cannot be resolved to a type
9: <body>
10: <h5>Loggin Successful</h5>
11: <%
12: Cars car =(Cars) request.getAttribute("cars");
13:
14: %>
15: Vehicle ID : <%=car.getVehicleID()%>
An error occurred at line: 12 in the jsp file: /success.jsp
Cars cannot be resolved to a type
9: <body>
10: <h5>Loggin Successful</h5>
11: <%
12: Cars car =(Cars) request.getAttribute("cars");
13:
14: %>
15: Vehicle ID : <%=car.getVehicleID()%>
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:356)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:321)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717
1
