Java Server Pages - The scriptlets
On April 13,2023 by Tom Routley
A JSP scriptlet is a block of Java code contained between the following tags:
The Java code (which must of course be valid) present between the becomes the body of the _jspService() method when generating the servlet (at least if no directive is indicated).
The scriptlet implicitly has access to many objects. The most widely used objects in scriptlets are:
-The request object: to have the details of the HTTP request (e.g when using forms)
-The out object out to send data to the client browser. For example:
Here is the list of implicitly accessible objects from any scriptlet:
Here is the list of implicitly accessible objects from any scriptlet:
Objet Dérivé de Description request javax.servlet.ServletRequest Objet containing client request response javax.servlet.ServletResponse Object containing the response from the JSP page. This object is used with servlets and is generally not used with JSP, since the HTML is created directly pageContext javax.servlet.jsp.PageContext Object that contains information about the server environment session javax.servlet.http.HttpSession Object containing the current session application javax.servlet.ServletContext Object containing the servlet context out javax.servlet.jsp.JspWriter Object containing the output stream config javax.servlet.ServletConfig Object containing the configuration of the servlet page java.lang.Object Object designating the page itself exception java.lang.Throwable Object representing an uncaught exception
Original document published on CommentcaMarcheet
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