Hi everybody,

I am a beginner of JSP,so please forgive I am asking some foolish questions as below.

I have read many JSP tutorial books and I seldom find a topic teaches us how to use a parameter to get a jsp page. Even there is, the content is very insufficient.

For example, I copy your link "http://p2p.wrox.com/post.asp?method=Topic&FORUM_ID=86"

It show the param"?method=Topic&FORUM_ID=86". I want to know how can I use one parameter to get the different contents within a JSP page?

Within a website there may be many different links, so it is difficult to manage if I create a new page for every link. And I heard that I could use a parameter to represent a page (eg.ID=1,2,3...) in order to show different content within the same template.

Is it difficult to understand my question? Am I not well to express my problem? Could you help me to solve it? I couldn't find any solution from the tutorial books in bookshop. Please help, thanks!

All the best
Roy

Hi,

You can use scriplets or custom tags for branching and check the parameter value to display different contents.for example

<%
int id = Integer.parseInt(request.getParameter("id"));
if(id == 1){
  out.print("Title One");
}else if(id == 2){
  out.print("Title Two");
}else{
 out.print("Title other");
}
%>

Mostly we use parameter values to get data from database for example id parameter value might be book id[primary key column] in a book store example and by getting the id value as parameter we use to construct a query and get the book data.

Hope i gave usefull info.

Regards,
Rakesh