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portal越来越流行了

 include the portlet mode that caused this exception
 
<DT><A HREF="javax/portlet/PortletModeException.html#PortletModeException(java.lang.Throwable, javax.portlet.PortletMode)"><B>PortletModeException(Throwable, PortletMode)</B></A> - 
Constructor for class javax.portlet.<A HREF="javax/portlet/PortletModeException.html">PortletModeException</A>
<DD>Constructs a new portlet mode exception when the portlet needs to throw an
 exception.
<DT><A HREF="javax/portlet/PortletPreferences.html"><B>PortletPreferences</B></A> - interface javax.portlet.<A HREF="javax/portlet/PortletPreferences.html">PortletPreferences</A>.<DD>The <CODE>PortletPreferences</CODE> interface allows the portlet to store
 configuration data.<DT><A HREF="javax/portlet/PortletRequest.html"><B>PortletRequest</B></A> - interface javax.portlet.<A HREF="javax/portlet/PortletRequest.html">PortletRequest</A>.<DD>The <CODE>PortletRequest</CODE> defines the base interface to provide client
 request information to a portlet.<DT><A HREF="javax/portlet/PortletRequestDispatcher.html"><B>PortletRequestDispatcher</B></A> - interface javax.portlet.<A HREF="javax/portlet/PortletRequestDispatcher.html">PortletRequestDispatcher</A>.<DD>The <code>PortletRequestDispatcher</code> interface 
 defines an object that receives requests from the client
 and sends them to the specified resources (such as a servlet,
 HTML file, or JSP file) on the server.<DT><A HREF="javax/portlet/PortletResponse.html"><B>PortletResponse</B></A> - interface javax.portlet.<A HREF="javax/portlet/PortletResponse.html">PortletResponse</A>.<DD>The <CODE>PortletResponse</CODE> defines the base interface to assist a
 portlet in creating and sending a response to the client.<DT><A HREF="javax/portlet/PortletSecurityException.html"><B>PortletSecurityException</B></A> - exception javax.portlet.<A HREF="javax/portlet/PortletSecurityException.html">PortletSecurityException</A>.<DD>A portlet should throw a <CODE>PortletSecurityException</CODE>
 when a call fails because of security reasons.<br>
 Additionally it can be thrown by the portal/portlet-container.<DT><A HREF="javax/portlet/PortletSecurityException.html#PortletSecurityException(java.lang.String)"><B>PortletSecurityException(String)</B></A> - 
Constructor for class javax.portlet.<A HREF="javax/portlet/PortletSecurityException.html">PortletSecurityException</A>
<DD>Constructs a new security exception with the given text.
<DT><A HREF="javax/portlet/PortletSecurityException.html#PortletSecurityException(java.lang.String, java.lang.Throwable)"><B>PortletSecurityException(String, Throwable)</B></A> - 
Constructor for class javax.portlet.<A HREF="javax/portlet/PortletSecurityException.html">PortletSecurityException</A>
<DD>Constructs a new portlet security exception when the portlet needs to do
 the following:
 
 <il>throw an exception 
 include a message about the "root cause" that interfered
     with its normal operation
 include a description message
 
<DT><A HREF="javax/portlet/PortletSecurityException.html#PortletSecurityException(java.lang.Throwable)"><B>PortletSecurityException(Throwable)</B></A> - 
Constructor for class javax.portlet.<A HREF="javax/portlet/PortletSecurityException.html">PortletSecurityException</A>
<DD>Constructs a new portlet security exception when the portlet needs to throw an
 exception.
<DT><A HREF="javax/portlet/PortletSession.html"><B>PortletSession</B></A> - interface javax.portlet.<A HREF="javax/portlet/PortletSession.html">PortletSession</A>.<DD>The <CODE>PortletSession</CODE> interface provides a way to identify a user
 across more than one request and to store transient information about that user.<DT><A HREF="javax/portlet/PortletSessionUtil.html"><B>PortletSessionUtil</B></A> - class javax.portlet.<A HREF="javax/portlet/PortletSessionUtil.html">PortletSessionUtil</A>.<DD>The <CODE>PortletSessionUtil</CODE>  class helps identify and decode
 attributes in the <CODE>PORTLET_SCOPE</CODE> scope of the PortletSession
 when accessed through the HttpSession an from within calls to methods
 of the HttpSessionBindingListener interface.<DT><A HREF="javax/portlet/PortletSessionUtil.html#PortletSessionUtil()"><B>PortletSessionUtil()</B></A> - 
Constructor for class javax.portlet.<A HREF="javax/portlet/PortletSessionUtil.html">PortletSessionUtil</A>
<DD>&nbsp;
<DT><A HREF="javax/portlet/PortletURL.html"><B>PortletURL</B></A> - interface javax.portlet.<A HREF="javax/portlet/PortletURL.html">PortletURL</A>.<DD>The <CODE>PortletURL</CODE> interface represents a URL
 that reference the portlet itself.<DT><A HREF="javax/portlet/PreferencesValidator.html"><B>PreferencesValidator</B></A> - interface javax.portlet.<A HREF="javax/portlet/PreferencesValidator.html">PreferencesValidator</A>.<DD>The <CODE>PreferencesValidator</CODE> allows to validate the set of
 preferences of the associated portlet just before they are
 stored in the persistent store.<DT><A HREF="javax/portlet/PortletException.html#printStackTrace()"><B>printStackTrace()</B></A> - 
Method in class javax.portlet.<A HREF="javax/portlet/PortletException.html">PortletException</A>
<DD>Prints the stack trace of this exception to the standard error stream.
<DT><A HREF="javax/portlet/PortletException.html#printStackTrace(java.io.PrintStream)"><B>printStackTrace(PrintStream)</B></A> - 
Method in class javax.portlet.<A HREF="javax/portlet/PortletException.html">PortletException</A>
<DD>Prints the stack trace of this exception to the specified print stream.
<DT><A HREF="javax/portlet/PortletException.html#printStackTrace(java.io.PrintWriter)"><B>printStackTrace(PrintWriter)</B></A> - 
Method in class javax.portlet.<A HREF="javax/portlet/PortletException.html">PortletException</A>
<DD>Prints the stack trace of this exception to the specified print writer.
<DT><A HREF="javax/portlet/Portlet.html#processAction(javax.portlet.ActionRequest, javax.portlet.ActionResponse)"><B>processAction(ActionRequest, ActionResponse)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/Portlet.html">Portlet</A>
<DD>Called by the portlet container to allow the portlet to process
 an action request.
<DT><A HREF="javax/portlet/GenericPortlet.html#processAction(javax.portlet.ActionRequest, javax.portlet.ActionResponse)"><B>processAction(ActionRequest, ActionResponse)</B></A> - 
Method in class javax.portlet.<A HREF="javax/portlet/GenericPortlet.html">GenericPortlet</A>
<DD>Called by the portlet container to allow the portlet to process
 an action request.
</DL>
<HR>
<A NAME="_R_"><!-- --></A><H2>
<B>R</B></H2>
<DL>
<DT><A HREF="javax/portlet/ReadOnlyException.html"><B>ReadOnlyException</B></A> - exception javax.portlet.<A HREF="javax/portlet/ReadOnlyException.html">ReadOnlyException</A>.<DD>The <CODE>ReadOnlyException</CODE> is thrown when a portlet tries
 to change the value for a read-only preference attribute.<DT><A HREF="javax/portlet/ReadOnlyException.html#ReadOnlyException(java.lang.String)"><B>ReadOnlyException(String)</B></A> - 
Constructor for class javax.portlet.<A HREF="javax/portlet/ReadOnlyException.html">ReadOnlyException</A>
<DD>Constructs a new read-only exception with the given text.
<DT><A HREF="javax/portlet/ReadOnlyException.html#ReadOnlyException(java.lang.String, java.lang.Throwable)"><B>ReadOnlyException(String, Throwable)</B></A> - 
Constructor for class javax.portlet.<A HREF="javax/portlet/ReadOnlyException.html">ReadOnlyException</A>
<DD>Constructs a new read-only exception when the portlet needs to do
 the following:
 
 <il>throw an exception 
 include a message about the "root cause" that interfered
     with its normal operation
 include a description message
 
<DT><A HREF="javax/portlet/ReadOnlyException.html#ReadOnlyException(java.lang.Throwable)"><B>ReadOnlyException(Throwable)</B></A> - 
Constructor for class javax.portlet.<A HREF="javax/portlet/ReadOnlyException.html">ReadOnlyException</A>
<DD>Constructs a new read-only exception when the portlet needs to throw an
 exception.
<DT><A HREF="javax/portlet/PortletRequest.html#removeAttribute(java.lang.String)"><B>removeAttribute(String)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletRequest.html">PortletRequest</A>
<DD>Removes an attribute from this request.
<DT><A HREF="javax/portlet/PortletSession.html#removeAttribute(java.lang.String)"><B>removeAttribute(String)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletSession.html">PortletSession</A>
<DD>Removes the object bound with the specified name under
 the <code>PORTLET_SCOPE</code> from
 this session.
<DT><A HREF="javax/portlet/PortletContext.html#removeAttribute(java.lang.String)"><B>removeAttribute(String)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletContext.html">PortletContext</A>
<DD>Removes the attribute with the given name from the portlet context.
<DT><A HREF="javax/portlet/PortletSession.html#removeAttribute(java.lang.String, int)"><B>removeAttribute(String, int)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletSession.html">PortletSession</A>
<DD>Removes the object bound with the specified name and the given scope from
 this session.
<DT><A HREF="javax/portlet/Portlet.html#render(javax.portlet.RenderRequest, javax.portlet.RenderResponse)"><B>render(RenderRequest, RenderResponse)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/Portlet.html">Portlet</A>
<DD>Called by the portlet container to allow the portlet to generate
 the content of the response based on its current state.
<DT><A HREF="javax/portlet/GenericPortlet.html#render(javax.portlet.RenderRequest, javax.portlet.RenderResponse)"><B>render(RenderRequest, RenderResponse)</B></A> - 
Method in class javax.portlet.<A HREF="javax/portlet/GenericPortlet.html">GenericPortlet</A>
<DD>The default implementation of this method sets the title 
 using the <code>getTitle</code> method and invokes the
 <code>doDispatch</code> method.
<DT><A HREF="javax/portlet/RenderRequest.html"><B>RenderRequest</B></A> - interface javax.portlet.<A HREF="javax/portlet/RenderRequest.html">RenderRequest</A>.<DD>The <CODE>RenderRequest</CODE> represents the request sent to the portlet
 to handle a render.<DT><A HREF="javax/portlet/RenderResponse.html"><B>RenderResponse</B></A> - interface javax.portlet.<A HREF="javax/portlet/RenderResponse.html">RenderResponse</A>.<DD>The <CODE>RenderResponse</CODE> defines an object to assist a portlet in
 sending a response to the portal.<DT><A HREF="javax/portlet/RenderResponse.html#reset()"><B>reset()</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/RenderResponse.html">RenderResponse</A>
<DD>Clears any data that exists in the buffer as well as the properties set.
<DT><A HREF="javax/portlet/PortletPreferences.html#reset(java.lang.String)"><B>reset(String)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletPreferences.html">PortletPreferences</A>
<DD>Resets or removes the value associated with the specified key.
<DT><A HREF="javax/portlet/RenderResponse.html#resetBuffer()"><B>resetBuffer()</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/RenderResponse.html">RenderResponse</A>
<DD>Clears the content of the underlying buffer in the response without
 clearing properties set.
</DL>
<HR>
<A NAME="_S_"><!-- --></A><H2>
<B>S</B></H2>
<DL>
<DT><A HREF="javax/portlet/ActionResponse.html#sendRedirect(java.lang.String)"><B>sendRedirect(String)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/ActionResponse.html">ActionResponse</A>
<DD>Instructs the portlet container to send a redirect response 
 to the client using the specified redirect location URL.
<DT><A HREF="javax/portlet/PortletRequest.html#setAttribute(java.lang.String, java.lang.Object)"><B>setAttribute(String, Object)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletRequest.html">PortletRequest</A>
<DD>Stores an attribute in this request.
<DT><A HREF="javax/portlet/PortletSession.html#setAttribute(java.lang.String, java.lang.Object)"><B>setAttribute(String, Object)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletSession.html">PortletSession</A>
<DD>Binds an object to this session under the <code>PORTLET_SCOPE</code>, using the name specified.
<DT><A HREF="javax/portlet/PortletContext.html#setAttribute(java.lang.String, java.lang.Object)"><B>setAttribute(String, Object)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletContext.html">PortletContext</A>
<DD>Binds an object to a given attribute name in this portlet context.
<DT><A HREF="javax/portlet/PortletSession.html#setAttribute(java.lang.String, java.lang.Object, int)"><B>setAttribute(String, Object, int)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletSession.html">PortletSession</A>
<DD>Binds an object to this session in the given scope, using the name specified.
<DT><A HREF="javax/portlet/RenderResponse.html#setBufferSize(int)"><B>setBufferSize(int)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/RenderResponse.html">RenderResponse</A>
<DD>Sets the preferred buffer size for the body of the response.
<DT><A HREF="javax/portlet/ActionRequest.html#setCharacterEncoding(java.lang.String)"><B>setCharacterEncoding(String)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/ActionRequest.html">ActionRequest</A>
<DD>Overrides the name of the character encoding used in the body of this
 request.
<DT><A HREF="javax/portlet/RenderResponse.html#setContentType(java.lang.String)"><B>setContentType(String)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/RenderResponse.html">RenderResponse</A>
<DD>Sets the MIME type for the render response.
<DT><A HREF="javax/portlet/PortletSession.html#setMaxInactiveInterval(int)"><B>setMaxInactiveInterval(int)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletSession.html">PortletSession</A>
<DD>Specifies the time, in seconds, between client requests, before the 
 portlet container invalidates this session.
<DT><A HREF="javax/portlet/PortletURL.html#setParameter(java.lang.String, java.lang.String)"><B>setParameter(String, String)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletURL.html">PortletURL</A>
<DD>Sets the given String parameter to this URL.
<DT><A HREF="javax/portlet/PortletURL.html#setParameter(java.lang.String, java.lang.String[])"><B>setParameter(String, String[])</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletURL.html">PortletURL</A>
<DD>Sets the given String array parameter to this URL.
<DT><A HREF="javax/portlet/PortletURL.html#setParameters(java.util.Map)"><B>setParameters(Map)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletURL.html">PortletURL</A>
<DD>Sets a parameter map for this URL.
<DT><A HREF="javax/portlet/ActionResponse.html#setPortletMode(javax.portlet.PortletMode)"><B>setPortletMode(PortletMode)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/ActionResponse.html">ActionResponse</A>
<DD>Sets the portlet mode of a portlet to the given portlet mode.
<DT><A HREF="javax/portlet/PortletURL.html#setPortletMode(javax.portlet.PortletMode)"><B>setPortletMode(PortletMode)</B></A> - 
Method in interface javax.portlet.<A HREF="javax/portlet/PortletURL.html">PortletURL</A>
<DD>Indicates the portlet mode the portlet must be in, if this
 portlet URL