JSP pageContext object

@Abhishek Uncategorized

JSP pageContext object

JSP pageContext implicit object is instance of javax.servlet.jsp.PageContext.

It is used to  get attribute, set attribute and remove attribute at any of the below scope–

  1. JSP Page – Scope: PAGE_CONTEXT
  2. HTTP Request – Scope: REQUEST_CONTEXT
  3. HTTP Session – Scope: SESSION_CONTEXT
  4. Application Level – Scope: APPLICATION_CONTEXT

 

Example of pageContext implicit object

index.html

<html>

<head>

<body>

<form action="first.jsp">

<input type="text" name="uname"><br>

<input type="text" name="password"><br>

<input type="submit" value="Login">

</form>

</body>

</html>

first.jsp

<html>

<body>

<% 
String name=request.getParameter("uname");

String pass=request.getParameter("password");

out.println("hello "+name);

pageContext.setAttribute("UName", name, PageContext.SESSION_SCOPE);

pageContext.setAttribute("UPassword", pass, PageContext.SESSION_SCOPE);

%>
<a href="second.jsp">Go to second jsp</a>

</body>

</html>

second.jsp

<html>

<body>

<%

String name= (String) pageContext.getAttribute("UName", PageContext.SESSION_SCOPE);

String password= (String) pageContext.getAttribute("UPassword", PageContext.SESSION_SCOPE);

out.println("Name="+name);

out.println("Password= "+password);
%>
</body>

</html>
 
 

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