I am getting blank page as output in my web browser when I run DemoServlet
note : I have used both doGet and doPost methods in my servlet instead of service method even though I am getting the same output.
The below is the following code
public class Student_Class {
int RollNo = 0;
String Name="";
Student_Class(int RollNo,String Name) {
this.RollNo = RollNo;
this.Name = Name;
}
public int getRollNo() {
return RollNo;
}
public String getName() {
return Name;
}
}
the above is my StudentClass
I have created a servlet like below
import java.io.IOException;
import java.io.PrintWriter;
import jakarta.servlet.RequestDispatcher;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
public class DemoServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
Student_Class Student = new Student_Class(1,"Name1");
request.setAttribute("Student", Student);
RequestDispatcher rd = request.getRequestDispatcher("display.jsp");
rd.forward(request, response);
}
}
and my jsp file is below the name of my jsp file is : display.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib prefix= "c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
${Student}
</body>
</html>
my web.xml file is like below
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:web="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" id="WebApp_ID" version="2.5">
<display-name>JSTL_Demo</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<description></description>
<display-name>Demo</display-name>
<servlet-name>Demo</servlet-name>
<servlet-class>Demo</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Demo</servlet-name>
<url-pattern>/Demo</url-pattern>
</servlet-mapping>
<servlet>
<description></description>
<display-name>DemoServlet</display-name>
<servlet-name>DemoServlet</servlet-name>
<servlet-class>DemoServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>DemoServlet</servlet-name>
<url-pattern>/DemoServlet</url-pattern>
</servlet-mapping>
</web-app>
I am using tomcat 10.0.10 as my server and eclipse as my IDE
please help me I am a beginner and I don't know much about jsp and servlets correct me if I have done anything wrong
