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Implicit objects in JSP

Source: Internet
Author: User
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This article briefly introduces the bank objects in JSP:

1. pagecontext

2. pagination, requestscope, sessionscope, applicationscope

3. Param, paramvalues

4. header, headervalues

5. Cookie

6. initparam

1. pagecontext: http://download.oracle.com/javaee/1.4/api/javax/servlet/jsp/PageContext.html#getRequest%28%29

2. pagination, requestscope, sessionscope, applicationscope

These objects are used to access the values of variables within the corresponding range.

3. Param and paramvalues

Extract the value from the rerquest object.

4. header, headervalues

Obtain the header information in the request.

5. Cookie

6. initparam

Obtain custom parameters in Web. xml. For example, define in the web. xml file:

Code:

<Context-param> <br/> <description> the author of the website </description> <br/> <param-Name> developer </param-Name> <br/> <param-value> jefferyxu </param-value> <br/> </context-param>

How to use it?

<Body> <br/> the developer :$ {initparam. developer} <br/> </body>

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Related Keywords:
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