Question

<form>
. . . 
    <div class="loginDiv">
        <%= new java.util.Date() %>
        <br/><br/>
        Username : <input type="text" class="resizedTextbox" name="username">&nbsp;&nbsp;
        Password : <input type="text" class="resizedTextbox" name="password">&nbsp;&nbsp;
        <input type="submit" name="btnLogin" value="LogIn">
            &nbsp;&nbsp;&nbsp;
            <a href="register.jsp">Register</a>
    </div>
</form>
               <%
                if(request.getAttribute("btnLogin") != null){
                    String username = request.getParameter("username");
                    String password = request.getParameter("password");
                    if(username != "" && password != ""){
                        out.print("Invalid Username/Password!");
                    }
                    else{
                        out.print("Invalid Username/Password!");
                    }
                }
               %>

I placed a breakpoint and when I click on the btnLogin the code inside the request.getAttribute(“btnLogin”).. is never being called.
Why is this so?

Answer 1

Try to do this:

if(request.getParameter("username") != null && request.getParameter("password") != null)

instead of this:

if(request.getAttribute("btnLogin") != null){