Class RequestFacade
- All Implemented Interfaces:
HttpServletRequest
,ServletRequest
- Author:
- Craig R. McClanahan, Remy Maucherat
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Field Summary
Fields inherited from interface javax.servlet.http.HttpServletRequest
BASIC_AUTH, CLIENT_CERT_AUTH, DIGEST_AUTH, FORM_AUTH
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Constructor Summary
ConstructorDescriptionRequestFacade
(Request request) Construct a wrapper for the specified request. -
Method Summary
Modifier and TypeMethodDescriptionboolean
authenticate
(HttpServletResponse response) Triggers the same authentication process as would be triggered if the request is for a resource that is protected by a security constraint.Changes the session ID of the session associated with this request.void
clear()
Clear facade.protected Object
clone()
Prevent cloning the facade.boolean
Get the current AsyncContext.getAttribute
(String name) Returns the value of the named attribute as anObject
, ornull
if no attribute of the given name exists.Returns anEnumeration
containing the names of the attributes available to this request.Returns the name of the authentication scheme used to protect the servlet.Returns the name of the character encoding used in the body of this request.int
Returns the length, in bytes, of the request body and made available by the input stream, or -1 if the length is not known.long
Returns the length, in bytes, of the request body and made available by the input stream, or -1 if the length is not known.Returns the MIME type of the body of the request, ornull
if the type is not known.Returns the portion of the request URI that indicates the context of the request.Cookie[]
Returns an array containing all of theCookie
objects the client sent with this request.long
getDateHeader
(String name) Returns the value of the specified request header as along
value that represents aDate
object.Returns the value of the specified request header as aString
.Returns an enumeration of all the header names this request contains.getHeaders
(String name) Returns all the values of the specified request header as anEnumeration
ofString
objects.Retrieves the body of the request as binary data using aServletInputStream
.int
getIntHeader
(String name) Returns the value of the specified request header as anint
.Returns the Internet Protocol (IP) address of the interface on which the request was received.Returns the preferredLocale
that the client will accept content in, based on the Accept-Language header.Returns anEnumeration
ofLocale
objects indicating, in decreasing order starting with the preferred locale, the locales that are acceptable to the client based on the Accept-Language header.Returns the host name of the Internet Protocol (IP) interface on which the request was received.int
Returns the Internet Protocol (IP) port number of the interface on which the request was received.Returns the name of the HTTP method with which this request was made, for example, GET, POST, or PUT.getParameter
(String name) Returns the value of a request parameter as aString
, ornull
if the parameter does not exist.Returns a java.util.Map of the parameters of this request.Returns anEnumeration
ofString
objects containing the names of the parameters contained in this request.String[]
getParameterValues
(String name) Returns an array ofString
objects containing all of the values the given request parameter has, ornull
if the parameter does not exist.Gets the named Part or null if the Part does not exist.getParts()
Return a collection of all uploaded Parts.Returns any extra path information associated with the URL the client sent when it made this request.Returns any extra path information after the servlet name but before the query string, and translates it to a real path.Returns the name and version of the protocol the request uses in the form protocol/majorVersion.minorVersion, for example, HTTP/1.1.Returns the query string that is contained in the request URL after the path.Retrieves the body of the request as character data using aBufferedReader
.getRealPath
(String path) Returns the Internet Protocol (IP) address of the client or last proxy that sent the request.Returns the fully qualified name of the client or the last proxy that sent the request.int
Returns the Internet Protocol (IP) source port of the client or last proxy that sent the request.Returns the login of the user making this request, if the user has been authenticated, ornull
if the user has not been authenticated.getRequestDispatcher
(String path) Returns aRequestDispatcher
object that acts as a wrapper for the resource located at the given path.Returns the session ID specified by the client.Returns the part of this request's URL from the protocol name up to the query string in the first line of the HTTP request.Reconstructs the URL the client used to make the request.Returns the name of the scheme used to make this request, for example,http
,https
, orftp
.Returns the host name of the server to which the request was sent.int
Returns the port number to which the request was sent.Returns the part of this request's URL that calls the servlet.Returns the current session associated with this request, or if the request does not have a session, creates one.getSession
(boolean create) Returns the currentHttpSession
associated with this request or, if there is no current session andcreate
is true, returns a new session.Returns ajava.security.Principal
object containing the name of the current authenticated user.boolean
boolean
boolean
Checks whether the requested session ID came in as a cookie.boolean
boolean
Checks whether the requested session ID came in as part of the request URL.boolean
Checks whether the requested session ID is still valid.boolean
isSecure()
Returns a boolean indicating whether this request was made using a secure channel, such as HTTPS.boolean
isUserInRole
(String role) Returns a boolean indicating whether the authenticated user is included in the specified logical "role".void
Authenticate the provided user name and password and then associated the authenticated user with the request.void
logout()
Removes any authenticated user from the request.newPushBuilder
(HttpServletRequest request) void
removeAttribute
(String name) Removes an attribute from this request.void
setAttribute
(String name, Object o) Stores an attribute in this request.void
Overrides the name of the character encoding used in the body of this request.startAsync
(ServletRequest request, ServletResponse response) <T extends HttpUpgradeHandler>
TStart the HTTP upgrade process and create and instance of the provided protocol handler class.
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Field Details
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request
The wrapped request.
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Constructor Details
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RequestFacade
Construct a wrapper for the specified request.- Parameters:
request
- The request to be wrapped
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Method Details
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clear
public void clear()Clear facade. -
clone
Prevent cloning the facade.- Overrides:
clone
in classObject
- Throws:
CloneNotSupportedException
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getAttribute
Description copied from interface:javax.servlet.ServletRequest
Returns the value of the named attribute as anObject
, ornull
if no attribute of the given name exists.Attributes can be set two ways. The servlet container may set attributes to make available custom information about a request. For example, for requests made using HTTPS, the attribute
javax.servlet.request.X509Certificate
can be used to retrieve information on the certificate of the client. Attributes can also be set programmatically usingServletRequest.setAttribute(java.lang.String, java.lang.Object)
. This allows information to be embedded into a request before aRequestDispatcher
call.Attribute names should follow the same conventions as package names. Names beginning with
java.*
andjavax.*
are reserved for use by the Servlet specification. Names beginning withsun.*
,com.sun.*
,oracle.*
andcom.oracle.*
) are reserved for use by Oracle Corporation.- Specified by:
getAttribute
in interfaceServletRequest
- Parameters:
name
- aString
specifying the name of the attribute- Returns:
- an
Object
containing the value of the attribute, ornull
if the attribute does not exist
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getAttributeNames
Description copied from interface:javax.servlet.ServletRequest
Returns anEnumeration
containing the names of the attributes available to this request. This method returns an emptyEnumeration
if the request has no attributes available to it.- Specified by:
getAttributeNames
in interfaceServletRequest
- Returns:
- an
Enumeration
of strings containing the names of the request's attributes
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getCharacterEncoding
Description copied from interface:javax.servlet.ServletRequest
Returns the name of the character encoding used in the body of this request. This method returnsnull
if the request does not specify a character encoding- Specified by:
getCharacterEncoding
in interfaceServletRequest
- Returns:
- a
String
containing the name of the character encoding, ornull
if the request does not specify a character encoding
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setCharacterEncoding
Description copied from interface:javax.servlet.ServletRequest
Overrides the name of the character encoding used in the body of this request. This method must be called prior to reading request parameters or reading input using getReader().- Specified by:
setCharacterEncoding
in interfaceServletRequest
- Parameters:
env
- aString
containing the name of the character encoding- Throws:
UnsupportedEncodingException
- if this is not a valid encoding
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getContentLength
public int getContentLength()Description copied from interface:javax.servlet.ServletRequest
Returns the length, in bytes, of the request body and made available by the input stream, or -1 if the length is not known. For HTTP servlets, same as the value of the CGI variable CONTENT_LENGTH.- Specified by:
getContentLength
in interfaceServletRequest
- Returns:
- an integer containing the length of the request body or -1 if the length is not known or is greater than
Integer.MAX_VALUE
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getContentType
Description copied from interface:javax.servlet.ServletRequest
Returns the MIME type of the body of the request, ornull
if the type is not known. For HTTP servlets, same as the value of the CGI variable CONTENT_TYPE.- Specified by:
getContentType
in interfaceServletRequest
- Returns:
- a
String
containing the name of the MIME type of the request, or null if the type is not known
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getInputStream
Description copied from interface:javax.servlet.ServletRequest
Retrieves the body of the request as binary data using aServletInputStream
. Either this method orServletRequest.getReader()
may be called to read the body, not both.- Specified by:
getInputStream
in interfaceServletRequest
- Returns:
- a
ServletInputStream
object containing the body of the request - Throws:
IOException
- if an input or output exception occurred
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getParameter
Description copied from interface:javax.servlet.ServletRequest
Returns the value of a request parameter as aString
, ornull
if the parameter does not exist. Request parameters are extra information sent with the request. For HTTP servlets, parameters are contained in the query string or posted form data.You should only use this method when you are sure the parameter has only one value. If the parameter might have more than one value, use
ServletRequest.getParameterValues(java.lang.String)
.If you use this method with a multivalued parameter, the value returned is equal to the first value in the array returned by
getParameterValues
.If the parameter data was sent in the request body, such as occurs with an HTTP POST request, then reading the body directly via
ServletRequest.getInputStream()
orServletRequest.getReader()
can interfere with the execution of this method.- Specified by:
getParameter
in interfaceServletRequest
- Parameters:
name
- aString
specifying the name of the parameter- Returns:
- a
String
representing the single value of the parameter - See Also:
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getParameterNames
Description copied from interface:javax.servlet.ServletRequest
Returns anEnumeration
ofString
objects containing the names of the parameters contained in this request. If the request has no parameters, the method returns an emptyEnumeration
.- Specified by:
getParameterNames
in interfaceServletRequest
- Returns:
- an
Enumeration
ofString
objects, eachString
containing the name of a request parameter; or an emptyEnumeration
if the request has no parameters
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getParameterValues
Description copied from interface:javax.servlet.ServletRequest
Returns an array ofString
objects containing all of the values the given request parameter has, ornull
if the parameter does not exist.If the parameter has a single value, the array has a length of 1.
- Specified by:
getParameterValues
in interfaceServletRequest
- Parameters:
name
- aString
containing the name of the parameter whose value is requested- Returns:
- an array of
String
objects containing the parameter's values - See Also:
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getParameterMap
Description copied from interface:javax.servlet.ServletRequest
Returns a java.util.Map of the parameters of this request. Request parameters are extra information sent with the request. For HTTP servlets, parameters are contained in the query string or posted form data.- Specified by:
getParameterMap
in interfaceServletRequest
- Returns:
- an immutable java.util.Map containing parameter names as keys and parameter values as map values. The keys in the parameter map are of type String. The values in the parameter map are of type String array.
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getProtocol
Description copied from interface:javax.servlet.ServletRequest
Returns the name and version of the protocol the request uses in the form protocol/majorVersion.minorVersion, for example, HTTP/1.1. For HTTP servlets, the value returned is the same as the value of the CGI variableSERVER_PROTOCOL
.- Specified by:
getProtocol
in interfaceServletRequest
- Returns:
- a
String
containing the protocol name and version number
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getScheme
Description copied from interface:javax.servlet.ServletRequest
Returns the name of the scheme used to make this request, for example,http
,https
, orftp
. Different schemes have different rules for constructing URLs, as noted in RFC 1738.- Specified by:
getScheme
in interfaceServletRequest
- Returns:
- a
String
containing the name of the scheme used to make this request
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getServerName
Description copied from interface:javax.servlet.ServletRequest
Returns the host name of the server to which the request was sent. It is the value of the part before ":" in theHost
header value, if any, or the resolved server name, or the server IP address.- Specified by:
getServerName
in interfaceServletRequest
- Returns:
- a
String
containing the name of the server
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getServerPort
public int getServerPort()Description copied from interface:javax.servlet.ServletRequest
Returns the port number to which the request was sent. It is the value of the part after ":" in theHost
header value, if any, or the server port where the client connection was accepted on.- Specified by:
getServerPort
in interfaceServletRequest
- Returns:
- an integer specifying the port number
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getReader
Description copied from interface:javax.servlet.ServletRequest
Retrieves the body of the request as character data using aBufferedReader
. The reader translates the character data according to the character encoding used on the body. Either this method orServletRequest.getInputStream()
may be called to read the body, not both.- Specified by:
getReader
in interfaceServletRequest
- Returns:
- a
BufferedReader
containing the body of the request - Throws:
UnsupportedEncodingException
- if the character set encoding used is not supported and the text cannot be decodedIOException
- if an input or output exception occurred- See Also:
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getRemoteAddr
Description copied from interface:javax.servlet.ServletRequest
Returns the Internet Protocol (IP) address of the client or last proxy that sent the request. For HTTP servlets, same as the value of the CGI variableREMOTE_ADDR
.- Specified by:
getRemoteAddr
in interfaceServletRequest
- Returns:
- a
String
containing the IP address of the client that sent the request
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getRemoteHost
Description copied from interface:javax.servlet.ServletRequest
Returns the fully qualified name of the client or the last proxy that sent the request. If the engine cannot or chooses not to resolve the hostname (to improve performance), this method returns the dotted-string form of the IP address. For HTTP servlets, same as the value of the CGI variableREMOTE_HOST
.- Specified by:
getRemoteHost
in interfaceServletRequest
- Returns:
- a
String
containing the fully qualified name of the client
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setAttribute
Description copied from interface:javax.servlet.ServletRequest
Stores an attribute in this request. Attributes are reset between requests. This method is most often used in conjunction withRequestDispatcher
.Attribute names should follow the same conventions as package names. Names beginning with
java.*
andjavax.*
are reserved for use by the Servlet specification. Names beginning withsun.*
,com.sun.*
,oracle.*
andcom.oracle.*
) are reserved for use by Oracle Corporation.
If the object passed in is null, the effect is the same as callingServletRequest.removeAttribute(java.lang.String)
.
It is warned that when the request is dispatched from the servlet resides in a different web application byRequestDispatcher
, the object set by this method may not be correctly retrieved in the caller servlet.- Specified by:
setAttribute
in interfaceServletRequest
- Parameters:
name
- aString
specifying the name of the attributeo
- theObject
to be stored
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removeAttribute
Description copied from interface:javax.servlet.ServletRequest
Removes an attribute from this request. This method is not generally needed as attributes only persist as long as the request is being handled.Attribute names should follow the same conventions as package names. Names beginning with
java.*
andjavax.*
are reserved for use by the Servlet specification. Names beginning withsun.*
,com.sun.*
,oracle.*
andcom.oracle.*
) are reserved for use by Oracle Corporation.- Specified by:
removeAttribute
in interfaceServletRequest
- Parameters:
name
- aString
specifying the name of the attribute to remove
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getLocale
Description copied from interface:javax.servlet.ServletRequest
Returns the preferredLocale
that the client will accept content in, based on the Accept-Language header. If the client request doesn't provide an Accept-Language header, this method returns the default locale for the server.- Specified by:
getLocale
in interfaceServletRequest
- Returns:
- the preferred
Locale
for the client
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getLocales
Description copied from interface:javax.servlet.ServletRequest
Returns anEnumeration
ofLocale
objects indicating, in decreasing order starting with the preferred locale, the locales that are acceptable to the client based on the Accept-Language header. If the client request doesn't provide an Accept-Language header, this method returns anEnumeration
containing oneLocale
, the default locale for the server.- Specified by:
getLocales
in interfaceServletRequest
- Returns:
- an
Enumeration
of preferredLocale
objects for the client
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isSecure
public boolean isSecure()Description copied from interface:javax.servlet.ServletRequest
Returns a boolean indicating whether this request was made using a secure channel, such as HTTPS.- Specified by:
isSecure
in interfaceServletRequest
- Returns:
- a boolean indicating if the request was made using a secure channel
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getRequestDispatcher
Description copied from interface:javax.servlet.ServletRequest
Returns aRequestDispatcher
object that acts as a wrapper for the resource located at the given path. ARequestDispatcher
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 specified may be relative, although it cannot extend outside the current servlet context. If the path begins with a "/" it is interpreted as relative to the current context root. This method returns
null
if the servlet container cannot return aRequestDispatcher
.The difference between this method and
ServletContext.getRequestDispatcher(java.lang.String)
is that this method can take a relative path.- Specified by:
getRequestDispatcher
in interfaceServletRequest
- Parameters:
path
- aString
specifying the pathname to the resource. If it is relative, it must be relative against the current servlet.- Returns:
- a
RequestDispatcher
object that acts as a wrapper for the resource at the specified path, ornull
if the servlet container cannot return aRequestDispatcher
- See Also:
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getRealPath
- Specified by:
getRealPath
in interfaceServletRequest
- Parameters:
path
- The virtual path to be converted to a real path- Returns:
ServletContext.getRealPath(String)
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getAuthType
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the name of the authentication scheme used to protect the servlet. All servlet containers support basic, form and client certificate authentication, and may additionally support digest authentication. If the servlet is not authenticatednull
is returned.Same as the value of the CGI variable AUTH_TYPE.
- Specified by:
getAuthType
in interfaceHttpServletRequest
- Returns:
- one of the static members BASIC_AUTH, FORM_AUTH, CLIENT_CERT_AUTH, DIGEST_AUTH (suitable for ==
comparison) or the container-specific string indicating the authentication scheme, or
null
if the request was not authenticated.
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getCookies
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns an array containing all of theCookie
objects the client sent with this request. This method returnsnull
if no cookies were sent.- Specified by:
getCookies
in interfaceHttpServletRequest
- Returns:
- an array of all the
Cookies
included with this request, ornull
if the request has no cookies
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getDateHeader
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the value of the specified request header as along
value that represents aDate
object. Use this method with headers that contain dates, such asIf-Modified-Since
.The date is returned as the number of milliseconds since January 1, 1970 GMT. The header name is case insensitive.
If the request did not have a header of the specified name, this method returns -1. If the header can't be converted to a date, the method throws an
IllegalArgumentException
.- Specified by:
getDateHeader
in interfaceHttpServletRequest
- Parameters:
name
- aString
specifying the name of the header- Returns:
- a
long
value representing the date specified in the header expressed as the number of milliseconds since January 1, 1970 GMT, or -1 if the named header was not included with the request
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getHeader
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the value of the specified request header as aString
. If the request did not include a header of the specified name, this method returnsnull
. If there are multiple headers with the same name, this method returns the first head in the request. The header name is case insensitive. You can use this method with any request header.- Specified by:
getHeader
in interfaceHttpServletRequest
- Parameters:
name
- aString
specifying the header name- Returns:
- a
String
containing the value of the requested header, ornull
if the request does not have a header of that name
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getHeaders
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns all the values of the specified request header as anEnumeration
ofString
objects.Some headers, such as
Accept-Language
can be sent by clients as several headers each with a different value rather than sending the header as a comma separated list.If the request did not include any headers of the specified name, this method returns an empty
Enumeration
. The header name is case insensitive. You can use this method with any request header.- Specified by:
getHeaders
in interfaceHttpServletRequest
- Parameters:
name
- aString
specifying the header name- Returns:
- an
Enumeration
containing the values of the requested header. If the request does not have any headers of that name return an empty enumeration. If the container does not allow access to header information, return null
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getHeaderNames
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns an enumeration of all the header names this request contains. If the request has no headers, this method returns an empty enumeration.Some servlet containers do not allow servlets to access headers using this method, in which case this method returns
null
- Specified by:
getHeaderNames
in interfaceHttpServletRequest
- Returns:
- an enumeration of all the header names sent with this request; if the request has no headers, an empty
enumeration; if the servlet container does not allow servlets to use this method,
null
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getIntHeader
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the value of the specified request header as anint
. If the request does not have a header of the specified name, this method returns -1. If the header cannot be converted to an integer, this method throws aNumberFormatException
.The header name is case insensitive.
- Specified by:
getIntHeader
in interfaceHttpServletRequest
- Parameters:
name
- aString
specifying the name of a request header- Returns:
- an integer expressing the value of the request header or -1 if the request doesn't have a header of this name
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getMethod
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the name of the HTTP method with which this request was made, for example, GET, POST, or PUT. Same as the value of the CGI variable REQUEST_METHOD.- Specified by:
getMethod
in interfaceHttpServletRequest
- Returns:
- a
String
specifying the name of the method with which this request was made
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getPathInfo
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns any extra path information associated with the URL the client sent when it made this request. The extra path information follows the servlet path but precedes the query string and will start with a "/" character.This method returns
null
if there was no extra path information.Same as the value of the CGI variable PATH_INFO.
- Specified by:
getPathInfo
in interfaceHttpServletRequest
- Returns:
- a
String
, decoded by the web container, specifying extra path information that comes after the servlet path but before the query string in the request URL; ornull
if the URL does not have any extra path information
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getPathTranslated
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns any extra path information after the servlet name but before the query string, and translates it to a real path. Same as the value of the CGI variable PATH_TRANSLATED.If the URL does not have any extra path information, this method returns
null
or the servlet container cannot translate the virtual path to a real path for any reason (such as when the web application is executed from an archive). The web container does not decode this string.- Specified by:
getPathTranslated
in interfaceHttpServletRequest
- Returns:
- a
String
specifying the real path, ornull
if the URL does not have any extra path information
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getContextPath
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the portion of the request URI that indicates the context of the request. The context path always comes first in a request URI. The path starts with a "/" character but does not end with a "/" character. For servlets in the default (root) context, this method returns "". The container does not decode this string.- Specified by:
getContextPath
in interfaceHttpServletRequest
- Returns:
- a
String
specifying the portion of the request URI that indicates the context of the request
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getQueryString
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the query string that is contained in the request URL after the path. This method returnsnull
if the URL does not have a query string. Same as the value of the CGI variable QUERY_STRING.- Specified by:
getQueryString
in interfaceHttpServletRequest
- Returns:
- a
String
containing the query string ornull
if the URL contains no query string. The value is not decoded by the container.
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getRemoteUser
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the login of the user making this request, if the user has been authenticated, ornull
if the user has not been authenticated. Whether the user name is sent with each subsequent request depends on the browser and type of authentication. Same as the value of the CGI variable REMOTE_USER.- Specified by:
getRemoteUser
in interfaceHttpServletRequest
- Returns:
- a
String
specifying the login of the user making this request, ornull
if the user login is not known
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isUserInRole
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns a boolean indicating whether the authenticated user is included in the specified logical "role". Roles and role membership can be defined using deployment descriptors. If the user has not been authenticated, the method returnsfalse
.- Specified by:
isUserInRole
in interfaceHttpServletRequest
- Parameters:
role
- aString
specifying the name of the role- Returns:
- a
boolean
indicating whether the user making this request belongs to a given role;false
if the user has not been authenticated
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getUserPrincipal
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns ajava.security.Principal
object containing the name of the current authenticated user. If the user has not been authenticated, the method returnsnull
.- Specified by:
getUserPrincipal
in interfaceHttpServletRequest
- Returns:
- a
java.security.Principal
containing the name of the user making this request;null
if the user has not been authenticated
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getRequestedSessionId
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the session ID specified by the client. This may not be the same as the ID of the current valid session for this request. If the client did not specify a session ID, this method returnsnull
.- Specified by:
getRequestedSessionId
in interfaceHttpServletRequest
- Returns:
- a
String
specifying the session ID, ornull
if the request did not specify a session ID - See Also:
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getRequestURI
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the part of this request's URL from the protocol name up to the query string in the first line of the HTTP request. The web container does not decode this String. For example:Examples of Returned Values First line of HTTP request Returned Value POST /some/path.html HTTP/1.1 /some/path.html GET http://foo.bar/a.html HTTP/1.0 /a.html HEAD /xyz?a=b HTTP/1.1 /xyz To reconstruct a URL with a scheme and host, use
HttpServletRequest.getRequestURL()
.- Specified by:
getRequestURI
in interfaceHttpServletRequest
- Returns:
- a
String
containing the part of the URL from the protocol name up to the query string - See Also:
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getRequestURL
Description copied from interface:javax.servlet.http.HttpServletRequest
Reconstructs the URL the client used to make the request. The returned URL contains a protocol, server name, port number, and server path, but it does not include query string parameters.Because this method returns a
StringBuffer
, not a string, you can modify the URL easily, for example, to append query parameters.This method is useful for creating redirect messages and for reporting errors.
- Specified by:
getRequestURL
in interfaceHttpServletRequest
- Returns:
- a
StringBuffer
object containing the reconstructed URL
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getServletPath
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the part of this request's URL that calls the servlet. This path starts with a "/" character and includes either the servlet name or a path to the servlet, but does not include any extra path information or a query string. Same as the value of the CGI variable SCRIPT_NAME.This method will return an empty string ("") if the servlet used to process this request was matched using the "/*" pattern.
- Specified by:
getServletPath
in interfaceHttpServletRequest
- Returns:
- a
String
containing the name or path of the servlet being called, as specified in the request URL, decoded, or an empty string if the servlet used to process the request is matched using the "/*" pattern.
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getSession
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the currentHttpSession
associated with this request or, if there is no current session andcreate
is true, returns a new session.If
create
isfalse
and the request has no validHttpSession
, this method returnsnull
.To make sure the session is properly maintained, you must call this method before the response is committed. If the container is using cookies to maintain session integrity and is asked to create a new session when the response is committed, an IllegalStateException is thrown.
- Specified by:
getSession
in interfaceHttpServletRequest
- Parameters:
create
-true
to create a new session for this request if necessary;false
to returnnull
if there's no current session- Returns:
- the
HttpSession
associated with this request ornull
ifcreate
isfalse
and the request has no valid session - See Also:
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getSession
Description copied from interface:javax.servlet.http.HttpServletRequest
Returns the current session associated with this request, or if the request does not have a session, creates one.- Specified by:
getSession
in interfaceHttpServletRequest
- Returns:
- the
HttpSession
associated with this request - See Also:
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changeSessionId
Description copied from interface:javax.servlet.http.HttpServletRequest
Changes the session ID of the session associated with this request. This method does not create a new session object it only changes the ID of the current session.- Specified by:
changeSessionId
in interfaceHttpServletRequest
- Returns:
- the new session ID allocated to the session
- See Also:
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isRequestedSessionIdValid
public boolean isRequestedSessionIdValid()Description copied from interface:javax.servlet.http.HttpServletRequest
Checks whether the requested session ID is still valid.- Specified by:
isRequestedSessionIdValid
in interfaceHttpServletRequest
- Returns:
true
if this request has an id for a valid session in the current session context;false
otherwise- See Also:
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isRequestedSessionIdFromCookie
public boolean isRequestedSessionIdFromCookie()Description copied from interface:javax.servlet.http.HttpServletRequest
Checks whether the requested session ID came in as a cookie.- Specified by:
isRequestedSessionIdFromCookie
in interfaceHttpServletRequest
- Returns:
true
if the session ID came in as a cookie; otherwise,false
- See Also:
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isRequestedSessionIdFromURL
public boolean isRequestedSessionIdFromURL()Description copied from interface:javax.servlet.http.HttpServletRequest
Checks whether the requested session ID came in as part of the request URL.- Specified by:
isRequestedSessionIdFromURL
in interfaceHttpServletRequest
- Returns:
true
if the session ID came in as part of a URL; otherwise,false
- See Also:
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isRequestedSessionIdFromUrl
public boolean isRequestedSessionIdFromUrl()- Specified by:
isRequestedSessionIdFromUrl
in interfaceHttpServletRequest
- Returns:
HttpServletRequest.isRequestedSessionIdFromURL()
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getLocalAddr
Description copied from interface:javax.servlet.ServletRequest
Returns the Internet Protocol (IP) address of the interface on which the request was received.- Specified by:
getLocalAddr
in interfaceServletRequest
- Returns:
- a
String
containing the IP address on which the request was received.
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getLocalName
Description copied from interface:javax.servlet.ServletRequest
Returns the host name of the Internet Protocol (IP) interface on which the request was received.- Specified by:
getLocalName
in interfaceServletRequest
- Returns:
- a
String
containing the host name of the IP on which the request was received.
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getLocalPort
public int getLocalPort()Description copied from interface:javax.servlet.ServletRequest
Returns the Internet Protocol (IP) port number of the interface on which the request was received.- Specified by:
getLocalPort
in interfaceServletRequest
- Returns:
- an integer specifying the port number
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getRemotePort
public int getRemotePort()Description copied from interface:javax.servlet.ServletRequest
Returns the Internet Protocol (IP) source port of the client or last proxy that sent the request.- Specified by:
getRemotePort
in interfaceServletRequest
- Returns:
- an integer specifying the port number
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getServletContext
- Specified by:
getServletContext
in interfaceServletRequest
- Returns:
- TODO
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startAsync
- Specified by:
startAsync
in interfaceServletRequest
- Returns:
- TODO
- Throws:
IllegalStateException
- If async is not supported for this request
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startAsync
public AsyncContext startAsync(ServletRequest request, ServletResponse response) throws IllegalStateException - Specified by:
startAsync
in interfaceServletRequest
- Parameters:
request
- The ServletRequest with which to initialise the asynchronous contextresponse
- The ServletResponse with which to initialise the asynchronous context- Returns:
- TODO
- Throws:
IllegalStateException
- If async is not supported for this request
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isAsyncStarted
public boolean isAsyncStarted()- Specified by:
isAsyncStarted
in interfaceServletRequest
- Returns:
- TODO
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isAsyncSupported
public boolean isAsyncSupported()- Specified by:
isAsyncSupported
in interfaceServletRequest
- Returns:
- TODO
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getAsyncContext
Description copied from interface:javax.servlet.ServletRequest
Get the current AsyncContext.- Specified by:
getAsyncContext
in interfaceServletRequest
- Returns:
- The current AsyncContext
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getDispatcherType
- Specified by:
getDispatcherType
in interfaceServletRequest
- Returns:
- TODO
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authenticate
Description copied from interface:javax.servlet.http.HttpServletRequest
Triggers the same authentication process as would be triggered if the request is for a resource that is protected by a security constraint.- Specified by:
authenticate
in interfaceHttpServletRequest
- Parameters:
response
- The response to use to return any authentication challenge- Returns:
true
if the user is successfully authenticated andfalse
if not- Throws:
IOException
- if the authentication process attempted to read from the request or write to the response and an I/O error occurredServletException
- if the authentication failed and the caller is expected to handle the failure
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login
Description copied from interface:javax.servlet.http.HttpServletRequest
Authenticate the provided user name and password and then associated the authenticated user with the request.- Specified by:
login
in interfaceHttpServletRequest
- Parameters:
username
- The user name to authenticatepassword
- The password to use to authenticate the user- Throws:
ServletException
- If any ofHttpServletRequest.getRemoteUser()
,HttpServletRequest.getUserPrincipal()
orHttpServletRequest.getAuthType()
are non-null, if the configured authenticator does not support user name and password authentication or if the authentication fails
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logout
Description copied from interface:javax.servlet.http.HttpServletRequest
Removes any authenticated user from the request.- Specified by:
logout
in interfaceHttpServletRequest
- Throws:
ServletException
- If the logout fails
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getParts
Description copied from interface:javax.servlet.http.HttpServletRequest
Return a collection of all uploaded Parts.- Specified by:
getParts
in interfaceHttpServletRequest
- Returns:
- A collection of all uploaded Parts.
- Throws:
IllegalStateException
- if size limits are exceeded or no multipart configuration is providedIOException
- if an I/O error occursServletException
- if the request is not multipart/form-data
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getPart
Description copied from interface:javax.servlet.http.HttpServletRequest
Gets the named Part or null if the Part does not exist. Triggers upload of all Parts.- Specified by:
getPart
in interfaceHttpServletRequest
- Parameters:
name
- The name of the Part to obtain- Returns:
- The named Part or null if the Part does not exist
- Throws:
IllegalStateException
- if size limits are exceededIOException
- if an I/O error occursServletException
- if the request is not multipart/form-data
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getAllowTrace
public boolean getAllowTrace() -
getContentLengthLong
public long getContentLengthLong()Description copied from interface:javax.servlet.ServletRequest
Returns the length, in bytes, of the request body and made available by the input stream, or -1 if the length is not known. For HTTP servlets, same as the value of the CGI variable CONTENT_LENGTH.- Specified by:
getContentLengthLong
in interfaceServletRequest
- Returns:
- a long integer containing the length of the request body or -1 if the length is not known
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upgrade
public <T extends HttpUpgradeHandler> T upgrade(Class<T> httpUpgradeHandlerClass) throws IOException, ServletException Description copied from interface:javax.servlet.http.HttpServletRequest
Start the HTTP upgrade process and create and instance of the provided protocol handler class. The connection will be passed this instance once the current request/response pair has completed processing. Calling this method sets the response status toHttpServletResponse.SC_SWITCHING_PROTOCOLS
.- Specified by:
upgrade
in interfaceHttpServletRequest
- Type Parameters:
T
- The type of the upgrade handler- Parameters:
httpUpgradeHandlerClass
- The class that implements the upgrade handler- Returns:
- A newly created instance of the specified upgrade handler type
- Throws:
IOException
- if an I/O error occurred during the upgradeServletException
- if the given httpUpgradeHandlerClass fails to be instantiated
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getHttpServletMapping
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newPushBuilder
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newPushBuilder
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