JSP PageContext Implicit Object
In JSP, pageContext is an implicit object of
type PageContext class.The
pageContext object can be used to set,get or
remove attribute from one of
the following scopes:
o page
o request
o session
o application
|
Example of pageContext implicit object
index.html
<html>
<body>
<form action="welcome.jsp">
<input type="text" name="uname">
<input type="submit" value="go"><br/>
</form>
</body>
</html>
welcome.jsp
<html>
<body>
<%
String name=request.getParameter("uname");
out.print("Welcome "+name);
pageContext.setAttribute("user",name,PageContext.SESSION_SCOPE);
<a href="second.jsp">second jsp page</a>
%>
</body>
</html>
second.jsp
<html>
<body>
<%
Stringname=(String)pageContext.getAttribute("user",PageContext.SESSION_SCOPE);
out.print("Hello "+name);
%>
</body>
</html>
Output
Fig: JSP Pagecontext object |
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