JSP Action

Syntax

Description

jsp:include

<jsp:include page="relativeURL"

flush="true | false" >

<jsp:param name="parameterName" value="parameterValue"/>

</jsp:include>

The jsp:include action is executed at request time and enables the inclusion of both static and dynamic content. Compared to the include directive, the jsp:include does not include the contents of the specified resource, but the output generated by the resource.

You can include any type of Web resource, such as a JSP or servlet, as long as it produces content of the same type as the calling JSP.

jsp:useBean

<jsp:useBean id="name" scope="page|request |session|application" typeSpec/>

typeSpec ::= class="className"  | class="className" type="typeName" |

type="typeName" class="className" |

beanName="beanName" type="typeName" |

type="typeName" beanName="beanName" |

type="typeName"

Associates an instance of a Java object that is defined with a given scope and id and makes it available as a scripting variable of the same id.

jsp:getProperty

<jsp:getProperty name="name" property="propertyName" />

Access properties of a bean instance. Properties are converted to String and sent to the implicit out object as output.

jsp:setProperty

<jsp:setProperty name="beanName" property="property" value="value"/>

Sets the value of an attribute inside a JavaBean.

To use the jsp:getProperty and the jsp:setProperty actions, the JavaBean should already be available, that is, declared in a jsp:useBean tag.

jsp:forward

<jsp:forward page="relativeURL" />

Forwards the current request to another resource of the same context as the calling JSP.

jsp:param

<jsp:param name="name" value="value" />

Supplies name-value parameter pairs. You can use this element only as a subelement of <jsp:include>, <jsp:forward>, and <jsp:params>

jsp:plugin

<jsp:plugin type="bean|applet"

code="objectCode"

codebase="objectCodebase"

{ align="alignment" }

{ archive="archiveList" }

{ height="height" }

{ hspace="hspace" }

{ jreversion="jreversion" }

{ name="componentName" }

{ vspace="vspace" }

{ title="title" }

{ width="width" }

{ nspluginurl="url" }

{ iepluginurl="url" }

{ mayscript="true|false" } >

{ <jsp:params>

{ <jsp:param name="paramName" value="paramValue" /> }+

</jsp:params> }

{ <jsp:fallback> arbitrary_text </jsp:fallback> }

</jsp:plugin>

Specifies an applet or Java Bean component and generates the necessary markup for the component to be correctly displayed in the browser.

jsp:params

<jsp:params>

{ <jsp:param name="paramName" value="paramValue" /> }+

</jsp:params>

Part of the <jsp:plugin> action. Specifies the parameters for the component included in <jsp:plugin>. You can use this action only as a subelement of the <jsp:plugin> action.

jsp:fallback

<jsp:fallback> arbitrary_text </jsp:fallback>

Specifies the content to be used if the content specified by <jsp:plugin> cannot be displayed.

jsp:element

<jsp:element name="table">

<jsp:attribute name="border">1</jsp:attribute>

<jsp:body>

…

</jsp:body>

</jsp:element>

Defines dynamic values in tag elements.

jsp:attribute

Specifies attributes for an enclosing action. You can use this action only as a subelement of another action.

jsp:body

Defines explicitly the body of a custom or standard action. Accepts no attributes.

jsp:invoke

<jsp:invoke fragment="abc"/>

Used in tag files only. Takes the name of an attribute as a fragment, invokes the fragment, and sends the output to an attribute, scoped variable, or to the standard output.

jsp:doBody

Used in tag files only. Behaves in the same way as <jsp:invoke>, except that it operates on the body of a tag.

jsp:text

<jsp:text> This is some text.</jsp:text>

Encloses template text.

jsp:output

Modifies properties of the output of a JSP document or tag file. Used in tag files and JSP documents in XML syntax only.