Hi friend,

Do some changes to convert in JSP page and remember some points :

1. replace the code
var url = "login.php?username=" + username + "&password=" +password ;

with :

var url = "login.jsp?username=" + username + "&password=" +password ;

2.Save the file "login.jsp" instead of "login.php"
"login.jsp"
<%
String username=request.getParamter("username");
String password=request.getParamter("password");

if(username.equals("admin") && password.equals("admin")){
out.println("yes");
}else{
out.println("No");
}
%>