157 lines
4.7 KiB
XML
157 lines
4.7 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">
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<taglib>
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<tlibversion>1.0</tlibversion>
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<jspversion>1.1</jspversion>
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<shortname>session</shortname>
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<uri>http://jakarta.apache.org/taglibs/session-1.0</uri>
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<info>The SESSION JSP tag library provides tags for reading or modifying client
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HttpSession information.
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A servlet container uses an HttpSession to store information about a
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clients session on the server. By default a JSP page will create a session for
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a user. The user is tied to the session using either a Cookie or by using URL
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rewriting. This is how you can tie information to a user between multiple HTTP
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requests to your server.
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Session Attributes are what makes it possible to store information about a
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clients session between multiple HTTP requests. A session attribute consists of
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a name and value. To save information about a users session on your server use
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the setAttribute tag.
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The session attributes you save only exist while the sessions exists.
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Servlet containers will expire a users session and remove it after the user has
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been inactive for a period of time. Many servlet containers default to 30
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minutes. You can change this by using the maxInactiveInterval tag.
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A typical example of this is a shopping cart application where you use the
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session to track what items the user wants to purchase. Each time a user
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selects an item to purchase you set a session attribute which contains
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information about the item. Then when the user later checks out, you can
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determine what items they want to purchase by looking at the session
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attributes.
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</info>
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<tag>
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<name>session</name>
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<tagclass>org.apache.taglibs.session.SessionTag</tagclass>
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<teiclass>org.apache.taglibs.session.SessionTEI</teiclass>
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<bodycontent>empty</bodycontent>
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<attribute>
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<name>id</name>
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<required>yes</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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</tag>
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<tag>
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<name>isNew</name>
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<tagclass>org.apache.taglibs.session.IsNewTag</tagclass>
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<bodycontent>JSP</bodycontent>
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<attribute>
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<name>value</name>
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<required>no</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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</tag>
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<tag>
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<name>invalidate</name>
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<tagclass>org.apache.taglibs.session.InvalidateTag</tagclass>
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<bodycontent>empty</bodycontent>
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</tag>
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<tag>
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<name>maxInactiveInterval</name>
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<tagclass>org.apache.taglibs.session.MaxInactiveIntervalTag</tagclass>
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<bodycontent>JSP</bodycontent>
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</tag>
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<tag>
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<name>attribute</name>
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<tagclass>org.apache.taglibs.session.AttributeTag</tagclass>
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<bodycontent>empty</bodycontent>
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<attribute>
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<name>name</name>
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<required>yes</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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</tag>
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<tag>
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<name>attributes</name>
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<tagclass>org.apache.taglibs.session.AttributesTag</tagclass>
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<teiclass>org.apache.taglibs.session.AttributesTEI</teiclass>
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<bodycontent>JSP</bodycontent>
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<attribute>
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<name>id</name>
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<required>yes</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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</tag>
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<tag>
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<name>equalsAttribute</name>
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<tagclass>org.apache.taglibs.session.EqualsAttributeTag</tagclass>
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<bodycontent>JSP</bodycontent>
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<attribute>
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<name>name</name>
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<required>yes</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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<attribute>
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<name>value</name>
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<required>no</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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<attribute>
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<name>match</name>
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<required>yes</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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<attribute>
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<name>ignoreCase</name>
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<required>no</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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</tag>
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<tag>
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<name>existsAttribute</name>
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<tagclass>org.apache.taglibs.session.ExistsAttributeTag</tagclass>
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<bodycontent>JSP</bodycontent>
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<attribute>
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<name>name</name>
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<required>yes</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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<attribute>
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<name>value</name>
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<required>no</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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</tag>
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<tag>
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<name>removeAttribute</name>
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<tagclass>org.apache.taglibs.session.RemoveAttributeTag</tagclass>
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<bodycontent>empty</bodycontent>
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<attribute>
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<name>name</name>
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<required>yes</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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</tag>
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<tag>
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<name>setAttribute</name>
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<tagclass>org.apache.taglibs.session.SetAttributeTag</tagclass>
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<bodycontent>JSP</bodycontent>
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<attribute>
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<name>name</name>
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<required>yes</required>
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<rtexprvalue>no</rtexprvalue>
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</attribute>
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</tag>
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</taglib>
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