📄 httpsession.html
字号:
<BR>
<B>Deprecated.</B> <I>As of Version 2.2, this method is
replaced by <A HREF="../../../javax/servlet/http/HttpSession.html#getAttributeNames()"><CODE>getAttributeNames()</CODE></A></I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpSession.html#invalidate()">invalidate</A></B>()</CODE>
<BR>
Invalidates this session then unbinds any objects bound
to it.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpSession.html#isNew()">isNew</A></B>()</CODE>
<BR>
Returns <code>true</code> if the client does not yet know about the
session or if the client chooses not to join the session.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpSession.html#putValue(java.lang.String, java.lang.Object)">putValue</A></B>(java.lang.String name,
java.lang.Object value)</CODE>
<BR>
<B>Deprecated.</B> <I>As of Version 2.2, this method is
replaced by <A HREF="../../../javax/servlet/http/HttpSession.html#setAttribute(java.lang.String, java.lang.Object)"><CODE>setAttribute(java.lang.String, java.lang.Object)</CODE></A></I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpSession.html#removeAttribute(java.lang.String)">removeAttribute</A></B>(java.lang.String name)</CODE>
<BR>
Removes the object bound with the specified name from
this session.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpSession.html#removeValue(java.lang.String)">removeValue</A></B>(java.lang.String name)</CODE>
<BR>
<B>Deprecated.</B> <I>As of Version 2.2, this method is
replaced by <A HREF="../../../javax/servlet/http/HttpSession.html#removeAttribute(java.lang.String)"><CODE>removeAttribute(java.lang.String)</CODE></A></I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpSession.html#setAttribute(java.lang.String, java.lang.Object)">setAttribute</A></B>(java.lang.String name,
java.lang.Object value)</CODE>
<BR>
Binds an object to this session, using the name specified.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpSession.html#setMaxInactiveInterval(int)">setMaxInactiveInterval</A></B>(int interval)</CODE>
<BR>
Specifies the time, in seconds, between client requests before the
servlet container will invalidate this session.</TD>
</TR>
</TABLE>
<P>
<!-- ============ FIELD DETAIL =========== -->
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>
<A NAME="getCreationTime()"><!-- --></A><H3>
getCreationTime</H3>
<PRE>
public long <B>getCreationTime</B>()</PRE>
<DL>
<DD>Returns the time when this session was created, measured
in milliseconds since midnight January 1, 1970 GMT.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>a <code>long</code> specifying
when this session was created,
expressed in
milliseconds since 1/1/1970 GMT
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalStateException</CODE> - if this method is called on an
invalidated session</DL>
</DD>
</DL>
<HR>
<A NAME="getId()"><!-- --></A><H3>
getId</H3>
<PRE>
public java.lang.String <B>getId</B>()</PRE>
<DL>
<DD>Returns a string containing the unique identifier assigned
to this session. The identifier is assigned
by the servlet container and is implementation dependent.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>a string specifying the identifier
assigned to this session
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalStateException</CODE> - if this method is called on an
invalidated session</DL>
</DD>
</DL>
<HR>
<A NAME="getLastAccessedTime()"><!-- --></A><H3>
getLastAccessedTime</H3>
<PRE>
public long <B>getLastAccessedTime</B>()</PRE>
<DL>
<DD>Returns the last time the client sent a request associated with
this session, as the number of milliseconds since midnight
January 1, 1970 GMT, and marked by the time the container received the request.
<p>Actions that your application takes, such as getting or setting
a value associated with the session, do not affect the access
time.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>a <code>long</code>
representing the last time
the client sent a request associated
with this session, expressed in
milliseconds since 1/1/1970 GMT
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalStateException</CODE> - if this method is called on an
invalidated session</DL>
</DD>
</DL>
<HR>
<A NAME="getServletContext()"><!-- --></A><H3>
getServletContext</H3>
<PRE>
public <A HREF="../../../javax/servlet/ServletContext.html" title="interface in javax.servlet">ServletContext</A> <B>getServletContext</B>()</PRE>
<DL>
<DD>Returns the ServletContext to which this session belongs.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>The ServletContext object for the web application<DT><B>Since:</B></DT>
<DD>2.3</DD>
</DL>
</DD>
</DL>
<HR>
<A NAME="setMaxInactiveInterval(int)"><!-- --></A><H3>
setMaxInactiveInterval</H3>
<PRE>
public void <B>setMaxInactiveInterval</B>(int interval)</PRE>
<DL>
<DD>Specifies the time, in seconds, between client requests before the
servlet container will invalidate this session. A negative time
indicates the session should never timeout.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>interval</CODE> - An integer specifying the number
of seconds</DL>
</DD>
</DL>
<HR>
<A NAME="getMaxInactiveInterval()"><!-- --></A><H3>
getMaxInactiveInterval</H3>
<PRE>
public int <B>getMaxInactiveInterval</B>()</PRE>
<DL>
<DD>Returns the maximum time interval, in seconds, that
the servlet container will keep this session open between
client accesses. After this interval, the servlet container
will invalidate the session. The maximum time interval can be set
with the <code>setMaxInactiveInterval</code> method.
A negative time indicates the session should never timeout.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>an integer specifying the number of
seconds this session remains open
between client requests<DT><B>See Also:</B><DD><A HREF="../../../javax/servlet/http/HttpSession.html#setMaxInactiveInterval(int)"><CODE>setMaxInactiveInterval(int)</CODE></A></DL>
</DD>
</DL>
<HR>
<A NAME="getSessionContext()"><!-- --></A><H3>
getSessionContext</H3>
<PRE>
public <A HREF="../../../javax/servlet/http/HttpSessionContext.html" title="interface in javax.servlet.http">HttpSessionContext</A> <B>getSessionContext</B>()</PRE>
<DL>
<DD><B>Deprecated.</B> <I>As of Version 2.1, this method is
deprecated and has no replacement.
It will be removed in a future
version of the Java Servlet API.</I>
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getAttribute(java.lang.String)"><!-- --></A><H3>
getAttribute</H3>
<PRE>
public java.lang.Object <B>getAttribute</B>(java.lang.String name)</PRE>
<DL>
<DD>Returns the object bound with the specified name in this session, or
<code>null</code> if no object is bound under the name.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - a string specifying the name of the object
<DT><B>Returns:</B><DD>the object with the specified name
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalStateException</CODE> - if this method is called on an
invalidated session</DL>
</DD>
</DL>
<HR>
<A NAME="getValue(java.lang.String)"><!-- --></A><H3>
getValue</H3>
<PRE>
public java.lang.Object <B>getValue</B>(java.lang.String name)</PRE>
<DL>
<DD><B>Deprecated.</B> <I>As of Version 2.2, this method is
replaced by <A HREF="../../../javax/servlet/http/HttpSession.html#getAttribute(java.lang.String)"><CODE>getAttribute(java.lang.String)</CODE></A>.</I>
<P>
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