Auszug aus der:
JavaServer Pages Specification - Draft
The two JavaServer Pages APIs are defined below:
- com.sun.server.http.HttpServiceRequest : This class implements the
javax.servlet.http.HttpServletRequest interface and adds a method to
set attributes defined by name. For more information refer to HttpServiceRequest
in Appendix A.
- com.sun.server.http.HttpServiceResponse : This class implements
the javax.servlet.http.HttpServletResponse interface and adds a method
that allows servlets to call pages and optionally pass a context. For more
information, refer to HttpServiceResponse in Appendix
B.
Appendix A: HttpServiceRequest
Back
to JavaServer Pages Specification - Draft
Class com.sun.server.http.HttpServiceRequest
java.lang.Object
|
+----com.sun.server.http.HttpServiceRequest
- public class HttpServiceRequest
- implements javax.servlet.http.HttpServletRequest
- extends Object
This class represents an HTTP request. It implements javax.servlet.http.HttpServletRequest.
The methods in the HttpServletRequest interface are not shown here. Only methods
that have been added to this class that are not in the servlet interface are shown
here.
-
setAttribute(String,
Object)
- This method stores an attribute in the request context
setAttribute
public void setAttribute(String key,
Object o)
- This method stores an attribute in the request context
- Parameters:
- key - a String specifying the name of the attribute
- o - a context object stored with the key.
Appendix B: HttpServiceResponse
Back to
JavaServer Pages Specification - Draft
Class com.sun.server.http.HttpServiceResponse
java.lang.Object
|
+----com.sun.server.http.HttpServiceResponse
- public class HttpServiceResponse
- implements javax.servlet.http.HttpServletResponse
- extends Object
This class represents an HTTP response. It implements the javax.servlet.http.HttpServletResponse
interface. The methods in the HttpServletResponse interface are not shown here.
Only methods that have been added to this class that are not in the servlet interface
is shown here.
- callPage(String,
HttpServletRequest)
- This method is used to serve a page from within a servlet.
callPage
public void callPage(String fileName,
HttpServletRequest hreq) throws ServletException, IOException
- This method is used to serve a page from within a servlet. A regular HTML
page can be served or a JavaServer Pages page can be served. If its a JavaServer
Pages page being served, then some context can be passed to it via the request
object. The file passed back will be passed with a header directive that will
indicate to the browser that this page is not to be cached.
- Parameters:
- fileName: - The name of the URL that identifies a file that will be used
to generate the output and present the content. When the name begins with
a "/" it is assumed relative to the document root. When it does not begin
with a "/" it is assumed to be relative to the URL that this current request
was invoked with.
- req: - The HttpServletRequest object of the servlet invoking this method.
Typically the content is passed as a bean in the context of the request
object.