public interface ServletContext
There is one context per "web application" per Java Virtual Machine. (A
"web application" is a collection of servlets and content installed under a
specific subset of the server's URL namespace such as /catalog
and possibly installed via a .war
file.)
In the case of a web application marked "distributed" in its deployment descriptor, there will be one context instance for each virtual machine. In this situation, the context cannot be used as a location to share global information (because the information won't be truly global). Use an external resource like a database instead.
The ServletContext
object is contained within the
ServletConfig
object, which the Web server provides the servlet when
the servlet is initialized.
Servlet.getServletConfig()
,
ServletConfig.getServletContext()
Modifier and Type | Field and Description |
---|---|
static java.lang.String |
ORDERED_LIBS |
static java.lang.String |
TEMPDIR |
Modifier and Type | Method and Description |
---|---|
FilterRegistration.Dynamic |
addFilter(java.lang.String filterName,
java.lang.Class<? extends Filter> filterClass) |
FilterRegistration.Dynamic |
addFilter(java.lang.String filterName,
Filter filter) |
FilterRegistration.Dynamic |
addFilter(java.lang.String filterName,
java.lang.String className) |
void |
addListener(java.lang.Class<? extends java.util.EventListener> listenerClass) |
void |
addListener(java.lang.String className) |
<T extends java.util.EventListener> |
addListener(T t) |
ServletRegistration.Dynamic |
addServlet(java.lang.String servletName,
java.lang.Class<? extends Servlet> servletClass) |
ServletRegistration.Dynamic |
addServlet(java.lang.String servletName,
Servlet servlet) |
ServletRegistration.Dynamic |
addServlet(java.lang.String servletName,
java.lang.String className) |
<T extends Filter> |
createFilter(java.lang.Class<T> c) |
<T extends java.util.EventListener> |
createListener(java.lang.Class<T> c) |
<T extends Servlet> |
createServlet(java.lang.Class<T> c) |
void |
declareRoles(java.lang.String... roleNames) |
java.lang.Object |
getAttribute(java.lang.String name)
Returns the servlet container attribute with the given name, or
null if there is no attribute by that name. |
java.util.Enumeration<java.lang.String> |
getAttributeNames()
Returns an
Enumeration containing the attribute names
available within this servlet context. |
java.lang.ClassLoader |
getClassLoader() |
ServletContext |
getContext(java.lang.String uripath)
Returns a
ServletContext object that corresponds to a
specified URL on the server. |
java.lang.String |
getContextPath() |
java.util.Set<SessionTrackingMode> |
getDefaultSessionTrackingModes() |
int |
getEffectiveMajorVersion() |
int |
getEffectiveMinorVersion() |
java.util.Set<SessionTrackingMode> |
getEffectiveSessionTrackingModes() |
FilterRegistration |
getFilterRegistration(java.lang.String filterName) |
java.util.Map<java.lang.String,? extends FilterRegistration> |
getFilterRegistrations() |
java.lang.String |
getInitParameter(java.lang.String name)
Returns a
String containing the value of the named
context-wide initialization parameter, or null if the
parameter does not exist. |
java.util.Enumeration<java.lang.String> |
getInitParameterNames()
Returns the names of the context's initialization parameters as an
Enumeration of String objects, or an empty
Enumeration if the context has no initialization parameters. |
JspConfigDescriptor |
getJspConfigDescriptor() |
int |
getMajorVersion()
Returns the major version of the Java Servlet API that this servlet
container supports.
|
java.lang.String |
getMimeType(java.lang.String file)
Returns the MIME type of the specified file, or
null if the
MIME type is not known. |
int |
getMinorVersion()
Returns the minor version of the Servlet API that this servlet container
supports.
|
RequestDispatcher |
getNamedDispatcher(java.lang.String name)
Returns a
RequestDispatcher object that acts as a wrapper for the
named servlet. |
java.lang.String |
getRealPath(java.lang.String path)
Returns a
String containing the real path for a given
virtual path. |
RequestDispatcher |
getRequestDispatcher(java.lang.String path)
Returns a
RequestDispatcher object that acts as a wrapper for the
resource located at the given path. |
java.net.URL |
getResource(java.lang.String path)
Returns a URL to the resource that is mapped to a specified path.
|
java.io.InputStream |
getResourceAsStream(java.lang.String path)
Returns the resource located at the named path as an
InputStream object. |
java.util.Set<java.lang.String> |
getResourcePaths(java.lang.String path)
Returns a directory-like listing of all the paths to resources within the
web application whose longest sub-path matches the supplied path
argument.
|
java.lang.String |
getServerInfo()
Returns the name and version of the servlet container on which the
servlet is running.
|
Servlet |
getServlet(java.lang.String name)
Deprecated.
As of Java Servlet API 2.1, with no direct replacement.
This method was originally defined to retrieve a servlet from
a
In lieu of this method, servlets can share information using
the |
java.lang.String |
getServletContextName()
Returns the name of this web application corresponding to this
ServletContext as specified in the deployment descriptor for this web
application by the display-name element.
|
java.util.Enumeration<java.lang.String> |
getServletNames()
Deprecated.
As of Java Servlet API 2.1, with no replacement.
This method was originally defined to return an
|
ServletRegistration |
getServletRegistration(java.lang.String servletName)
Obtain the details of the named servlet.
|
java.util.Map<java.lang.String,? extends ServletRegistration> |
getServletRegistrations() |
java.util.Enumeration<Servlet> |
getServlets()
Deprecated.
As of Java Servlet API 2.0, with no replacement.
This method was originally defined to return an
|
SessionCookieConfig |
getSessionCookieConfig() |
void |
log(java.lang.Exception exception,
java.lang.String msg)
Deprecated.
As of Java Servlet API 2.1, use
log(String message, Throwable throwable) instead.
This method was originally defined to write an exception's stack trace and an explanatory error message to the servlet log file. |
void |
log(java.lang.String msg)
Writes the specified message to a servlet log file, usually an event log.
|
void |
log(java.lang.String message,
java.lang.Throwable throwable)
Writes an explanatory message and a stack trace for a given
Throwable exception to the servlet log file. |
void |
removeAttribute(java.lang.String name)
Removes the attribute with the given name from the servlet context.
|
void |
setAttribute(java.lang.String name,
java.lang.Object object)
Binds an object to a given attribute name in this servlet context.
|
boolean |
setInitParameter(java.lang.String name,
java.lang.String value) |
void |
setSessionTrackingModes(java.util.Set<SessionTrackingMode> sessionTrackingModes) |
static final java.lang.String TEMPDIR
static final java.lang.String ORDERED_LIBS
ServletContext getContext(java.lang.String uripath)
ServletContext
object that corresponds to a
specified URL on the server.
This method allows servlets to gain access to the context for various
parts of the server, and as needed obtain RequestDispatcher
objects from the context. The given path must be begin with "/", is
interpreted relative to the server's document root and is matched against
the context roots of other web applications hosted on this container.
In a security conscious environment, the servlet container may return
null
for a given URL.
uripath
- a String
specifying the context path of another
web application in the container.ServletContext
object that corresponds to the
named URL, or null if either none exists or the container wishes
to restrict this access.RequestDispatcher
java.lang.String getContextPath()
int getMajorVersion()
int getMinorVersion()
int getEffectiveMajorVersion()
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.int getEffectiveMinorVersion()
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.lang.String getMimeType(java.lang.String file)
null
if the
MIME type is not known. The MIME type is determined by the configuration
of the servlet container, and may be specified in a web application
deployment descriptor. Common MIME types are "text/html"
and
"image/gif"
.file
- a String
specifying the name of a fileString
specifying the file's MIME typejava.util.Set<java.lang.String> getResourcePaths(java.lang.String path)
path
- the partial path used to match the resources, which must start
with a /java.net.URL getResource(java.lang.String path) throws java.net.MalformedURLException
This method allows the servlet container to make a resource available to
servlets from any source. Resources can be located on a local or remote
file system, in a database, or in a .war
file.
The servlet container must implement the URL handlers and
URLConnection
objects that are necessary to access the
resource.
This method returns null
if no resource is mapped to the
pathname.
Some containers may allow writing to the URL returned by this method using the methods of the URL class.
The resource content is returned directly, so be aware that requesting a
.jsp
page returns the JSP source code. Use a
RequestDispatcher
instead to include results of an
execution.
This method has a different purpose than
java.lang.Class.getResource
, which looks up resources based
on a class loader. This method does not use class loaders.
path
- a String
specifying the path to the resourcenull
if
there is no resource at that pathjava.net.MalformedURLException
- if the pathname is not given in the correct formjava.io.InputStream getResourceAsStream(java.lang.String path)
InputStream
object.
The data in the InputStream
can be of any type or length.
The path must be specified according to the rules given in
getResource
. This method returns null
if no
resource exists at the specified path.
Meta-information such as content length and content type that is
available via getResource
method is lost when using this
method.
The servlet container must implement the URL handlers and
URLConnection
objects necessary to access the resource.
This method is different from
java.lang.Class.getResourceAsStream
, which uses a class
loader. This method allows servlet containers to make a resource
available to a servlet from any location, without using a class loader.
path
- a String
specifying the path to the resourceInputStream
returned to the servlet, or
null
if no resource exists at the specified pathRequestDispatcher getRequestDispatcher(java.lang.String path)
RequestDispatcher
object that acts as a wrapper for the
resource located at the given path. A RequestDispatcher
object can be used to forward a request to the resource or to include the
resource in a response. The resource can be dynamic or static.
The pathname must begin with a "/" and is interpreted as relative to the
current context root. Use getContext
to obtain a
RequestDispatcher
for resources in foreign contexts. This
method returns null
if the ServletContext
cannot return a RequestDispatcher
.
path
- a String
specifying the pathname to the resourceRequestDispatcher
object that acts as a wrapper for
the resource at the specified path, or null
if the
ServletContext
cannot return a
RequestDispatcher
RequestDispatcher
,
getContext(java.lang.String)
RequestDispatcher getNamedDispatcher(java.lang.String name)
RequestDispatcher
object that acts as a wrapper for the
named servlet.
Servlets (and JSP pages also) may be given names via server
administration or via a web application deployment descriptor. A servlet
instance can determine its name using
ServletConfig.getServletName()
.
This method returns null
if the ServletContext
cannot return a RequestDispatcher
for any reason.
name
- a String
specifying the name of a servlet to wrapRequestDispatcher
object that acts as a wrapper for
the named servlet, or null
if the
ServletContext
cannot return a
RequestDispatcher
RequestDispatcher
,
getContext(java.lang.String)
,
ServletConfig.getServletName()
Servlet getServlet(java.lang.String name) throws ServletException
This method was originally defined to retrieve a servlet from
a ServletContext
. In this version, this method
always returns null
and remains only to preserve
binary compatibility. This method will be permanently removed
in a future version of the Java Servlet API.
In lieu of this method, servlets can share information using
the ServletContext
class and can perform shared
business logic by invoking methods on common non-servlet
classes.
ServletException
java.util.Enumeration<Servlet> getServlets()
This method was originally defined to return an
Enumeration
of all the servlets known to this
servlet context. In this version, this method always returns
an empty enumeration and remains only to preserve binary
compatibility. This method will be permanently removed in a
future version of the Java Servlet API.
java.util.Enumeration<java.lang.String> getServletNames()
This method was originally defined to return an
Enumeration
of all the servlet names known to
this context. In this version, this method always returns an
empty Enumeration
and remains only to preserve
binary compatibility. This method will be permanently removed
in a future version of the Java Servlet API.
void log(java.lang.String msg)
msg
- a String
specifying the message to be written to
the log filevoid log(java.lang.Exception exception, java.lang.String msg)
log(String message, Throwable throwable)
instead.
This method was originally defined to write an exception's stack trace and an explanatory error message to the servlet log file.
void log(java.lang.String message, java.lang.Throwable throwable)
Throwable
exception to the servlet log file. The name and
type of the servlet log file is specific to the servlet container,
usually an event log.message
- a String
that describes the error or exceptionthrowable
- the Throwable
error or exceptionjava.lang.String getRealPath(java.lang.String path)
String
containing the real path for a given
virtual path. For example, the path "/index.html" returns the absolute
file path on the server's filesystem would be served by a request for
"http://host/contextPath/index.html", where contextPath is the context
path of this ServletContext..
The real path returned will be in a form appropriate to the computer and
operating system on which the servlet container is running, including the
proper path separators. This method returns null
if the
servlet container cannot translate the virtual path to a real path for
any reason (such as when the content is being made available from a
.war
archive).
path
- a String
specifying a virtual pathString
specifying the real path, or null if the
translation cannot be performedjava.lang.String getServerInfo()
The form of the returned string is
servername/versionnumber. For example, the JavaServer Web
Development Kit may return the string
JavaServer Web Dev Kit/1.0
.
The servlet container may return other optional information after the
primary string in parentheses, for example,
JavaServer Web Dev Kit/1.0 (JDK 1.1.6; Windows NT 4.0 x86)
.
String
containing at least the servlet container
name and version numberjava.lang.String getInitParameter(java.lang.String name)
String
containing the value of the named
context-wide initialization parameter, or null
if the
parameter does not exist.
This method can make available configuration information useful to an entire "web application". For example, it can provide a webmaster's email address or the name of a system that holds critical data.
name
- a String
containing the name of the parameter
whose value is requestedString
containing the value of the initialization
parameterServletConfig.getInitParameter(java.lang.String)
java.util.Enumeration<java.lang.String> getInitParameterNames()
Enumeration
of String
objects, or an empty
Enumeration
if the context has no initialization parameters.Enumeration
of String
objects
containing the names of the context's initialization parametersServletConfig.getInitParameter(java.lang.String)
boolean setInitParameter(java.lang.String name, java.lang.String value)
name
- value
- java.lang.IllegalStateException
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.lang.Object getAttribute(java.lang.String name)
null
if there is no attribute by that name. An attribute
allows a servlet container to give the servlet additional information not
already provided by this interface. See your server documentation for
information about its attributes. A list of supported attributes can be
retrieved using getAttributeNames
.
The attribute is returned as a java.lang.Object
or some
subclass. Attribute names should follow the same convention as package
names. The Java Servlet API specification reserves names matching
java.*
, javax.*
, and sun.*
.
name
- a String
specifying the name of the attributeObject
containing the value of the attribute, or
null
if no attribute exists matching the given namegetAttributeNames()
java.util.Enumeration<java.lang.String> getAttributeNames()
Enumeration
containing the attribute names
available within this servlet context. Use the getAttribute(java.lang.String)
method with an attribute name to get the value of an attribute.Enumeration
of attribute namesgetAttribute(java.lang.String)
void setAttribute(java.lang.String name, java.lang.Object object)
If listeners are configured on the ServletContext
the
container notifies them accordingly.
If a null value is passed, the effect is the same as calling
removeAttribute()
.
Attribute names should follow the same convention as package names. The
Java Servlet API specification reserves names matching
java.*
, javax.*
, and sun.*
.
name
- a String
specifying the name of the attributeobject
- an Object
representing the attribute to be boundvoid removeAttribute(java.lang.String name)
getAttribute(java.lang.String)
to retrieve the
attribute's value will return null
.
If listeners are configured on the ServletContext
the
container notifies them accordingly.
name
- a String
specifying the name of the attribute to
be removedjava.lang.String getServletContextName()
ServletRegistration.Dynamic addServlet(java.lang.String servletName, java.lang.String className)
servletName
- className
- java.lang.IllegalStateException
- If the context has already been initialisedjava.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.ServletRegistration.Dynamic addServlet(java.lang.String servletName, Servlet servlet)
servletName
- servlet
- java.lang.IllegalStateException
- If the context has already been initialisedjava.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.ServletRegistration.Dynamic addServlet(java.lang.String servletName, java.lang.Class<? extends Servlet> servletClass)
servletName
- servletClass
- java.lang.IllegalStateException
- If the context has already been initialisedjava.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.<T extends Servlet> T createServlet(java.lang.Class<T> c) throws ServletException
c
- ServletException
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.ServletRegistration getServletRegistration(java.lang.String servletName)
servletName
- The name of the Servlet of interestnull
if no Servlet has been registered with the
given namejava.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.util.Map<java.lang.String,? extends ServletRegistration> getServletRegistrations()
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.FilterRegistration.Dynamic addFilter(java.lang.String filterName, java.lang.String className)
filterName
- className
- java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.lang.IllegalStateException
- If the context has already been initialisedFilterRegistration.Dynamic addFilter(java.lang.String filterName, Filter filter)
filterName
- filter
- java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.lang.IllegalStateException
- If the context has already been initialisedFilterRegistration.Dynamic addFilter(java.lang.String filterName, java.lang.Class<? extends Filter> filterClass)
filterName
- filterClass
- java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.lang.IllegalStateException
- If the context has already been initialised<T extends Filter> T createFilter(java.lang.Class<T> c) throws ServletException
c
- java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.ServletException
FilterRegistration getFilterRegistration(java.lang.String filterName)
filterName
- java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.util.Map<java.lang.String,? extends FilterRegistration> getFilterRegistrations()
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.SessionCookieConfig getSessionCookieConfig()
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.void setSessionTrackingModes(java.util.Set<SessionTrackingMode> sessionTrackingModes) throws java.lang.IllegalStateException, java.lang.IllegalArgumentException
sessionTrackingModes
- java.lang.IllegalArgumentException
- If sessionTrackingModes specifies
SessionTrackingMode.SSL
in combination with any other
SessionTrackingMode
java.lang.IllegalStateException
- If the context has already been initialisedjava.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.util.Set<SessionTrackingMode> getDefaultSessionTrackingModes()
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.util.Set<SessionTrackingMode> getEffectiveSessionTrackingModes()
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.void addListener(java.lang.String className)
className
- java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.<T extends java.util.EventListener> void addListener(T t)
T
- t
- java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.void addListener(java.lang.Class<? extends java.util.EventListener> listenerClass)
listenerClass
- java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.<T extends java.util.EventListener> T createListener(java.lang.Class<T> c) throws ServletException
T
- c
- ServletException
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.void declareRoles(java.lang.String... roleNames)
roleNames
- java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.lang.IllegalArgumentException
java.lang.IllegalStateException
java.lang.ClassLoader getClassLoader()
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.java.lang.SecurityException
JspConfigDescriptor getJspConfigDescriptor()
java.lang.UnsupportedOperationException
- If called from a
ServletContextListener.contextInitialized(ServletContextEvent)
method of a ServletContextListener
that was not defined in a
web.xml file, a web-fragment.xml file nor annotated with
WebListener
. For example, a
ServletContextListener
defined in a TLD would not be able to
use this method.Copyright © 2000-2015 Apache Software Foundation. All Rights Reserved.