82
Example of out implicit Object
Example of request implicit object
Example of Response implicit Object
Example of application implicit object
Example of session implicit object
Example of pageContext implicit object
Example of page implicit object
Example of exception implicit object
4) JSP config implicit object
In JSP, config is an implicit object of type ServletConfig. This object can be used to get initialization parameter for a particular JSP page. The config object is created by the web container for each jsp page.
Generally, it is used to get initialization parameter from the web.xml file.
Example of config implicit object:
index.html
<form action="welcome"> <input type="text" name="uname"> <input type="submit" value="go"><br/> </form>
web.xml file
<web-app> <servlet> <servlet-name>tutoraspire</servlet-name> <jsp-file>/welcome.jsp</jsp-file> <init-param> <param-name>dname</param-name> <param-value>sun.jdbc.odbc.JdbcOdbcDriver</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>tutoraspire</servlet-name> <url-pattern>/welcome</url-pattern> </servlet-mapping> </web-app>
welcome.jsp
<% out.print("Welcome "+request.getParameter("uname")); String driver=config.getInitParameter("dname"); out.print("driver name is="+driver); %> Output
Other topics in JSP implicit Objects
Example of request implicit object
Example of Response implicit Object
Example of application implicit object
Example of session implicit object
Example of pageContext implicit object
Example of page implicit object
Example of exception implicit object