JSP out implicit object :
PrintWriter out=response.getWriter();
JSP request implicit object
The JSP ask for is a verifiable protest of sort HttpServletRequest i.e. made for each jsp ask for by the web compartment. It can be utilized to get ask for data, for example, parameter, header data, remote address, server name, server port, content sort, character encoding and so on. It can likewise be utilized to set, get and expel traits from the jsp ask for scope.Example:index.htmlwelcome.jsp
<%
String name=request.getParameter("uname");
out.print("welcome "+name);
%>
JAVA Tutorial Video
[embed]https://www.youtube.com/watch?v=Mb8nG-NH6gg&t=2835s[/embed]JSP response implicit object:
In JSP, reaction is an understood question of sort HttpServletResponse. The occurrence of HttpServletResponse is made by the web compartment for each jsp ask.It can be utilized to include or control reaction, for example, divert reaction to another asset, send blunder and so on.Example: index.htmlwelcome.jsp
<%
response.sendRedirect("http://www.google.com");
%>
JSP config implicit object :
In JSP, config is a verifiable protest of sort ServletConfig. This protest can be utilized to get instatement parameter for a specific JSP page. The config protest is made by the web holder for each jsp page. By and large, it is utilized to get instatement parameter from the web.xml record.
Example:
index.html:web.xml file:
welcome.jsp:
<%
out.print("Welcome "+request.getParameter("uname"));
String driver=config.getInitParameter("dname");
out.print("driver name is="+driver);
%>
JSP application:
In JSP, application is an understood question of sort ServletContext. The occurrence of ServletContext is made just once by the web holder when application or venture is sent on the server.
This protest can be utilized to get instatement parameter from configuaration record (web.xml). It can likewise be utilized to get, set or expel trait from the application scope. This instatement parameter can be utilized by all jsp pages.
index.html :web.xml file :
welcome.jsp:
<%
out.print("Welcome "+request.getParameter("uname"));
String driver=application.getInitParameter("dname");
out.print("driver name is="+driver);
%>
session implicit object :
The implicit object is a type of HttpSession,the set,get and session implicit object used by the developer.PageContext :
- page
- request
- session
- application