JSP syntax (1)

An HTML comment is displayed on the client.

JSP syntax

<! -- Comment [<% = expression %>] -->

Example 1

<! -- This file displays the user login screen -->

Generate the same data as the above in the HTML source code of the client:

<! -- This file displays the user login screen -->

Example 2

<! -- This page was loaded on <% = (new java. util. Date (). toLocaleString () %> -->

In the HTML source code of the client, it is displayed:

<! -- This page was loaded on January 1, 2000 -->

Description

This annotation is similar to HTML, that is, it can be seen in "View Source Code.

The only difference is that you can use an expression in this comment (Example 2 ). This expression is indefinite. Different pages allow you to use various expressions as long as they are valid.