public class RequestDispatcherImpl extends Object implements RequestDispatcher
ERROR_EXCEPTION, ERROR_EXCEPTION_TYPE, ERROR_MESSAGE, ERROR_REQUEST_URI, ERROR_SERVLET_NAME, ERROR_STATUS_CODE, FORWARD_CONTEXT_PATH, FORWARD_MAPPING, FORWARD_PATH_INFO, FORWARD_QUERY_STRING, FORWARD_REQUEST_URI, FORWARD_SERVLET_PATH, INCLUDE_CONTEXT_PATH, INCLUDE_MAPPING, INCLUDE_PATH_INFO, INCLUDE_QUERY_STRING, INCLUDE_REQUEST_URI, INCLUDE_SERVLET_PATH| Constructor and Description |
|---|
RequestDispatcherImpl(ServletChain chain,
ServletContextImpl servletContext) |
RequestDispatcherImpl(String path,
ServletContextImpl servletContext) |
| Modifier and Type | Method and Description |
|---|---|
void |
error(ServletRequestContext servletRequestContext,
ServletRequest request,
ServletResponse response,
String servletName) |
void |
error(ServletRequestContext servletRequestContext,
ServletRequest request,
ServletResponse response,
String servletName,
String message) |
void |
error(ServletRequestContext servletRequestContext,
ServletRequest request,
ServletResponse response,
String servletName,
Throwable exception) |
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 |
include(ServletRequest request,
ServletResponse response)
Includes the content of a resource (servlet, JSP page, HTML file) in the response.
|
void |
mock(ServletRequest request,
ServletResponse response) |
public RequestDispatcherImpl(String path, ServletContextImpl servletContext)
public RequestDispatcherImpl(ServletChain chain, ServletContextImpl servletContext)
public void forward(ServletRequest request, ServletResponse response) throws ServletException, 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.
This method sets the dispatcher type of the given request to DispatcherType.FORWARD.
forward in interface RequestDispatcherrequest - 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 exceptionIOException - if the target resource throws this exceptionServletRequest.getDispatcherType()public void include(ServletRequest request, ServletResponse response) throws ServletException, 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.
This method sets the dispatcher type of the given request to DispatcherType.INCLUDE.
include in interface RequestDispatcherrequest - a ServletRequest object that contains the client's requestresponse - a ServletResponse object that contains the servlet's responseServletException - if the included resource throws this exceptionIOException - if the included resource throws this exceptionServletRequest.getDispatcherType()public void error(ServletRequestContext servletRequestContext, ServletRequest request, ServletResponse response, String servletName, String message) throws ServletException, IOException
ServletExceptionIOExceptionpublic void error(ServletRequestContext servletRequestContext, ServletRequest request, ServletResponse response, String servletName) throws ServletException, IOException
ServletExceptionIOExceptionpublic void error(ServletRequestContext servletRequestContext, ServletRequest request, ServletResponse response, String servletName, Throwable exception) throws ServletException, IOException
ServletExceptionIOExceptionpublic void mock(ServletRequest request, ServletResponse response) throws ServletException, IOException
ServletExceptionIOExceptionCopyright © 2019 JBoss by Red Hat. All rights reserved.