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java.lang.Object | +--com.caucho.server.http.QRequestDispatcher
Method Summary | |
void |
chain(ServletRequest request,
ServletResponse response)
|
void |
forward(CauchoRequest req,
CauchoResponse res,
java.lang.String method,
boolean isLogin)
Forwards the request to the servlet named by the request dispatcher. |
void |
forward(ServletRequest request,
ServletResponse response)
Forwards a request from a servlet to another resource (servlet, JSP file, or HTML file) on the server. |
void |
forward(ServletRequest request,
ServletResponse response,
java.lang.String method,
boolean isLogin)
|
void |
include(ServletRequest request,
ServletResponse response)
Includes the content of a resource (servlet, JSP page, HTML file) in the response. |
void |
include(ServletRequest request,
ServletResponse response,
java.lang.String method)
Include a request into the current page. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
public void forward(ServletRequest request, ServletResponse response) throws ServletException, java.io.IOException
RequestDispatcher
For a RequestDispatcher
obtained via
getRequestDispatcher()
, the ServletRequest
object has its path elements and parameters adjusted to match
the path of the target resource.
forward
should be called before the response has been
committed to the client (before response body output has been flushed).
If the response already has been committed, this method throws
an IllegalStateException
.
Uncommitted output in the response buffer is automatically cleared
before the forward.
The request and response parameters must be either the same
objects as were passed to the calling servlet's service method or be
subclasses of the ServletRequestWrapper
or ServletResponseWrapper
classes
that wrap them.
forward
in interface RequestDispatcher
javax.servlet.RequestDispatcher
request
- a ServletRequest
object
that represents the request the client
makes of the servletresponse
- a ServletResponse
object
that represents the response the servlet
returns to the clientServletException
- if the target resource throws this exceptionjava.io.IOException
- if the target resource throws this exceptionjava.lang.IllegalStateException
- if the response was already committedpublic void forward(ServletRequest request, ServletResponse response, java.lang.String method, boolean isLogin) throws ServletException, java.io.IOException
public void forward(CauchoRequest req, CauchoResponse res, java.lang.String method, boolean isLogin) throws ServletException, java.io.IOException
req
- the servlet request.response
- the servlet response.method
- special to tell if from error.public void include(ServletRequest request, ServletResponse response) throws ServletException, java.io.IOException
RequestDispatcher
The ServletResponse
object has its path elements
and parameters remain unchanged from the caller's. The included
servlet cannot change the response status code or set headers;
any attempt to make a change is ignored.
The request and response parameters must be either the same
objects as were passed to the calling servlet's service method or be
subclasses of the ServletRequestWrapper
or ServletResponseWrapper
classes
that wrap them.
include
in interface RequestDispatcher
javax.servlet.RequestDispatcher
request
- a ServletRequest
object
that contains the client's requestresponse
- a ServletResponse
object
that contains the servlet's responseServletException
- if the included resource throws this exceptionjava.io.IOException
- if the included resource throws this exceptionpublic void chain(ServletRequest request, ServletResponse response) throws ServletException, java.io.IOException
public void include(ServletRequest request, ServletResponse response, java.lang.String method) throws ServletException, java.io.IOException
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