<form action="loginprocess.jsp">
Email:<input type="text" name="email"/><br/><br/>
Password:<input type="password" name="pass"/><br/><br/>
<input type="submit" value="login"/>
</form>

<%@page import="bean.LoginDao"%>
<jsp:useBean id="obj" class="bean.LoginBean"/>

<jsp:setProperty property="*" name="obj"/>

<%
boolean status=LoginDao.validate(obj);
if(status){
out.println("You r successfully logged in");
session.setAttribute("session","TRUE");
}
else
{
out.print("Sorry, email or password error");
%>
<jsp:include page="index.jsp"></jsp:include>
<%
}
%>

import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.ResultSet;
    import java.sql.Statement;
    public class LoginDao {
    //public static void main(String args[]){
    public static boolean validate( LoginBean bean ){
           Connection c = null;
             Statement stmt = null;
            boolean status=false;
            try{

                Class.forName("org.postgresql.Driver");
             c = DriverManager.getConnection("jdbc:postgresql://localhost:5432/test","postgres", "pgadmin");
            // c.setAutoCommit(false);
                //PreparedStatement ps=c.prepareStatement("select * from user432 where email=? and pass=?;");
                //ps.setString(1,bean.getEmail());
                //ps.setString(2, bean.getPass());
                stmt = c.createStatement();
                ResultSet rs = stmt.executeQuery( "SELECT * FROM public."USER432" where email= 'a' and pass='a' ;" );
                //ResultSet rs = stmt.executeQuery( "SELECT * FROM public.company;" );
                status=rs.next();
                 rs.close();
             stmt.close();
             c.close();
            }catch(Exception e){}
                //System.out.println(status);
            return true;



    }
    }

package bean;

public class LoginBean {
private String email,pass;

public String getEmail() {
    return email;
}

public void setEmail(String email) {
    this.email = email;
}

public String getPass() {
    return pass;
}

public void setPass(String pass) {
    this.pass = pass;
}


}