I am getting the following error.
type Exception report
message Error instantiating servlet class LoginServlet
description The server encountered an internal error that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Error instantiating servlet class LoginServlet
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
root cause
java.lang.ClassNotFoundException: LoginServlet
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
java.lang.Thread.run(Thread.java:745)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.56 logs.
I am using annotation instead of web.xml file. Since all answers are provided for projects with web.xml file. I find difficult to locate answer for my problem. Given below are my login.jsp page and LoginServlet class codes.
login.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>APIS</title>
<link rel="stylesheet" href="public/css/bootstrap.min.css">
<link rel="stylesheet" href="public/css/style.css">
<%@page import= "com.servlet.LoginServlet" %>
</head>
<body>
<ul class="nav navbar-nav">
<li><a href="index.jsp"><span class="glyphicon glyphicon-home"></span> Home</a></li>
<li class="active"><a href="login.jsp"><span class="glyphicon glyphicon-lock"></span> Login</a></li>
<%
if (session.getAttribute("agencyname") != null) {
if (session.getAttribute("agencyname").toString().equals("slc")) {
%>
<li><a href="register.jsp"><span class="glyphicon glyphicon-user"></span> New Register</a></li>
<%
}
%>
<li><a href="resetPassword.jsp"><span class="glyphicon glyphicon-refresh"></span> Reset Password</a></li>
<%
}
%>
</ul>
<form class="login-form" action="LoginServlet" method="post">
<h2 class="form-signin-heading" style="margin-left:20px;margin-bottom:30px;">Sign In</h2>
<div class="form-group">
<input type="text" class="form-control" id="exampleInputEmail1" placeholder="UserName" name="UserName">
</div>
<div class="form-group">
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password" name="Password">
</div>
<input type="submit" class="btn btn-success btn-block" value="Submit">
</form>
</body>
<script src="public/js/jquery.min.js"></script>
<script src="public/js/bootstrap.min.js"></script>
</html>
LoginServlet class
package com.servlet;
import com.controller.UserDAO;
import com.model.OgaUser;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
@WebServlet(name = "LoginServlet", urlPatterns = {"/LoginServlet"})
public class LoginServlet extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter()) {
/* TODO output your page here. You may use following sample code. */
out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet LoginServlet</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet LoginServlet at " + request.getContextPath() + "</h1>");
out.println("</body>");
out.println("</html>");
}
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
System.out.println("******************************");
System.out.println("In doPost method");
String username = request.getParameter("UserName");
String password = request.getParameter("Password");
//OgaUser ou = new OgaUser();
String loginResult = UserDAO.login(username, password);
if (loginResult != null) {
HttpSession session = request.getSession();
if (loginResult.equalsIgnoreCase("slc")) {
session.setAttribute("agency", "slc");
session.setAttribute("username","Harsha");
response.sendRedirect("index.jsp");
} else {
response.sendRedirect("index.jsp");
}
} else {
}
}
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
