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java.lang.Objectjavax.servlet.GenericServlet
javax.servlet.http.HttpServlet
org.apache.jasper.servlet.JspServlet
public class JspServlet
The JSP engine (a.k.a Jasper). The servlet container is responsible for providing a URLClassLoader for the web application context Jasper is being used in. Jasper will try get the Tomcat ServletContext attribute for its ServletContext class loader, if that fails, it uses the parent class loader. In either case, it must be a URLClassLoader.
| Constructor Summary | |
|---|---|
JspServlet()
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| Method Summary | |
|---|---|
void |
destroy()
Called by the servlet container to indicate to a servlet that the servlet is being taken out of service. |
int |
getJspCount()
Returns the number of JSPs for which JspServletWrappers exist, i.e., the number of JSPs that have been loaded into the webapp with which this JspServlet is associated. |
int |
getJspReloadCount()
Gets the number of JSPs that have been reloaded. |
void |
init(javax.servlet.ServletConfig config)
Called by the servlet container to indicate to a servlet that the servlet is being placed into service. |
void |
periodicEvent()
Execute a periodic task, such as reloading, etc. |
void |
service(javax.servlet.http.HttpServletRequest request,
javax.servlet.http.HttpServletResponse response)
Receives standard HTTP requests from the public service method and dispatches
them to the doXXX methods defined in
this class. |
void |
setJspReloadCount(int count)
Resets the JSP reload counter. |
| Methods inherited from class javax.servlet.http.HttpServlet |
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doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service |
| Methods inherited from class javax.servlet.GenericServlet |
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getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log |
| Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public JspServlet()
| Method Detail |
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public void init(javax.servlet.ServletConfig config)
throws javax.servlet.ServletException
javax.servlet.GenericServletServlet.init(javax.servlet.ServletConfig).
This implementation stores the ServletConfig
object it receives from the servlet container for later use.
When overriding this form of the method, call
super.init(config).
init in interface javax.servlet.Servletinit in class javax.servlet.GenericServletconfig - the ServletConfig object
that contains configutation
information for this servlet
javax.servlet.ServletException - if an exception occurs that
interrupts the servlet's normal
operationUnavailableExceptionpublic int getJspCount()
This info may be used for monitoring purposes.
public void setJspReloadCount(int count)
count - Value to which to reset the JSP reload counterpublic int getJspReloadCount()
This info may be used for monitoring purposes.
public void service(javax.servlet.http.HttpServletRequest request,
javax.servlet.http.HttpServletResponse response)
throws javax.servlet.ServletException,
java.io.IOException
javax.servlet.http.HttpServletservice method and dispatches
them to the doXXX methods defined in
this class. This method is an HTTP-specific version of the
Servlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse) method. There's no
need to override this method.
service in class javax.servlet.http.HttpServletrequest - the HttpServletRequest object that
contains the request the client made of
the servletresponse - the HttpServletResponse object that
contains the response the servlet returns
to the client
javax.servlet.ServletException - if the HTTP request
cannot be handled
java.io.IOException - if an input or output error occurs
while the servlet is handling the
HTTP requestServlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse)public void destroy()
javax.servlet.GenericServletServlet.destroy().
destroy in interface javax.servlet.Servletdestroy in class javax.servlet.GenericServletpublic void periodicEvent()
PeriodicEventListener
periodicEvent in interface PeriodicEventListener
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