Servlet to jsp on button click - whats the error?

Question

I have a simple form on a jsp page, as given below. On clicking the button, it should take us to a servlet by the name of LoginValidation. But it doesn't work.

  <form name="login_form" action="LoginValidation" method="get" onsubmit="return func()" >
      <input type="text" placeholder="Username" id="username" class="style-4" />
      <input type="password" placeholder="Password" id="pass" class="style-4" />
      <input type="submit" class="button" name="Sign_button" "/>
  </form>

Here's func():

   function func()
        {  
            var filter="";
            var uname = document.getElementById('username').value;
            var pass = document.getElementById('pass').value;
            if(uname==filter && pass==filter)
                {
                    alert('Please enter your username and password to sign in.');
                    return false;

                }
            else if(uname==filter)
                {
                    alert('Please enter your username to sign in.');
                    return false;
                }
            else if(pass==filter)
                {
                    alert('Please enter your password to sign in.');
                    return false;  
                }
                else
                    return true;
        }

xml mapping (LoginValidation is in package Controller):

 <servlet>
    <servlet-name>LoginValidation</servlet-name>
    <servlet-class>Controller.LoginValidation</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>LoginValidation</servlet-name>
    <url-pattern>/LoginValidation</url-pattern>
</servlet-mapping>

Basically, on login, func() runs. If value is true, it should ideally go to the LoginValidation servlet. But the function is not running as well. This same thing is running in another project of mine when I did it earlier. What am I doing wrong?

Answer 1

Tried out the code in a separate jsp, picking up sections and pasting them, removing extra div's. Seemed to make it work.