JSP Action Element

SP Standard Tag(Action Element)

JSP specification provides Standard(Action) tags for use within your JSP pages. These tags are used to remove or eliminate scriptlet code from your JSP page because scriplet code are technically not recommended nowadays. It's considered to be bad practice to put java code directly inside your JSP page.
Standard tags begin with the jsp: prefix. There are many JSP Standard Action tag which are used to perform some specific task.
The following are some JSP Standard Action Tags available:


Action TagDescription
jsp:forward
forward the request to a new page
Usage : <jsp:forward page="Relative URL" />
jsp:useBean
instantiates a JavaBean
Usage : <jsp:useBean id="beanId" />
jsp:getProperty




retrieves a property from a JavaBean instance.
Usage : 
<jsp:useBean id="beanId" ... />
...
<jsp:getProperty name="beanId" property="someProperty" .../>
Where, beanName is the name of pre-defined bean whose property we want to access.
jsp:setProperty





store data in property of any JavaBeans instance.
Usage : 
<jsp:useBean id="beanId" ... />
...
<jsp:setProperty name="beanId" property="someProperty" 
value="some value"/>
Where, beanName is the name of pre-defined bean whose property we want to access.
jsp:includeincludes the runtime response of a JSP page into the current page.
jsp:plugin
Generates client browser-specific construct that makes an OBJECT or EMBED tag for the Java Applets
jsp:fallback

Supplies alternate text if java plugin is unavailable on the client. You can print a message using this, if the included jsp plugin is not loaded.
jsp:elementDefines XML elements dynamically
jsp:attributedefines dynamically defined XML element's attribute
jsp:bodyUsed within standard or custom tags to supply the tag body.
jsp:paramAdds parameters to the request object.
jsp:text
Used to write template text in JSP pages and documents.
Usage : <jsp:text>Template data</jsp:text>

Comments

Post a Comment