Class HttpServletRequestImpl
- All Implemented Interfaces:
HttpServletRequest,ServletRequest,Holders.RequestHolder
Request request object. All methods are delegated to the wrapped request.- Version:
- $Revision: 1.7 $ $Date: 2007/08/01 19:04:28 $
- Author:
- Craig R. McClanahan, Remy Maucherat, Jean-Francois Arcand
-
Field Summary
FieldsModifier and TypeFieldDescriptionprotected RequestThe wrapped request.protected HttpServletResponseImplThe corresponding servlet responseprotected booleanUsing stream flag.protected booleanUsing writer flag.Fields inherited from interface jakarta.servlet.http.HttpServletRequest
BASIC_AUTH, CLIENT_CERT_AUTH, DIGEST_AUTH, FORM_AUTH -
Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedConstruct a wrapper for the specified request. -
Method Summary
Modifier and TypeMethodDescriptionbooleanUse the container login mechanism configured for theServletContextto authenticate the user making this request.Change the session id of the current session associated with this request and return the new session id.protected Objectclone()Prevent cloning the facade.static HttpServletRequestImplcreate()voidDisables async support for this request.Gets the AsyncContext that was created or reinitialized by the most recent invocation ofServletRequest.startAsync()orServletRequest.startAsync(ServletRequest,ServletResponse)on this request.getAttribute(String name) Returns the value of the named attribute as anObject, ornullif no attribute of the given name exists.Returns anEnumerationcontaining 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.intReturns the length, in bytes, of the request body and made available by the input stream, or -1 if the length is not known or is greater than Integer.MAX_VALUE.longReturns 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, ornullif the type is not known.protected WebappContextReturn the underlyingWebappContextReturns the portion of the request URI that indicates the context of the request.Cookie[]Returns an array containing all of theCookieobjects the client sent with this request.longgetDateHeader(String name) Returns the value of the specified request header as alongvalue that represents aDateobject.Gets the dispatcher type of this request.Cookie[]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 anEnumerationofStringobjects.Return the HttpServletMapping of the request.Retrieves the body of the request as binary data using aServletInputStream.Returns internal GrizzlyRequestassociated with this Holder.intgetIntHeader(String name) Returns the value of the specified request header as anint.Returns the Internet Protocol (IP) address representing the interface on which the request was received.Returns the preferredLocalethat the client will accept content in, based on the Accept-Language header.Returns anEnumerationofLocaleobjects 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 fully qualified name of the address returned byServletRequest.getLocalAddr().intReturns the Internet Protocol (IP) port number representing 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, ornullif the parameter does not exist.Returns a java.util.Map of the parameters of this request.Returns anEnumerationofStringobjects containing the names of the parameters contained in this request.String[]getParameterValues(String name) Returns an array ofStringobjects containing all of the values the given request parameter has, ornullif the parameter does not exist.Gets thePartwith the given name.getParts()Gets all thePartcomponents of this request, provided that it is of typemultipart/form-data.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.Obtain the request identifier for this request as defined by the protocol in use.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.Returns the Internet Protocol (IP) of the remote end of the connection on which the request was received.Returns the fully qualified name of the address returned byServletRequest.getRemoteAddr().intReturns the Internet Protocol (IP) source port the remote end of the connection on which the request was received.Returns the login of the user making this request, if the user has been authenticated, ornullif the user has not been authenticated.getRequestDispatcher(String path) Returns aRequestDispatcherobject that acts as a wrapper for the resource located at the given path.Returns the session ID specified by the client.Obtain a unique (within the lifetime of the Servlet container) identifier string for this request.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.intReturns the port number to which the request was sent.Obtain details of the network connection to the Servlet container that is being used by this request.Gets the servlet context to which this ServletRequest was last dispatched.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 currentHttpSessionassociated with this request or, if there is no current session andcreateis true, returns a new session.Get the request trailer fields.Returns ajava.security.Principalobject containing the name of the current authenticated user.voidinitialize(Request request, HttpServletResponseImpl servletResponse, WebappContext context) booleanChecks if this request has been put into asynchronous mode.booleanChecks if this request supports asynchronous operation.booleanChecks whether the requested session ID was conveyed to the server as an HTTP cookie.booleanChecks whether the requested session ID was conveyed to the server as part of the request URL.booleanChecks whether the requested session ID is still valid.booleanisSecure()Returns a boolean indicating whether this request was made using a secure channel, such as HTTPS.booleanReturn a boolean indicating whether trailer fields are ready to read usingHttpServletRequest.getTrailerFields().booleanbooleanisUserInRole(String role) Returns a boolean indicating whether the authenticated user is included in the specified logical "role".voidValidate the provided username and password in the password validation realm used by the web container login mechanism configured for theServletContext.voidlogout()Establishnullas the value returned whengetUserPrincipal,getRemoteUser, andgetAuthTypeis called on the request.Instantiates a new instance ofPushBuilderfor issuing server push responses from the current request.voidremoveAttribute(String name) Removes an attribute from this request.voidsetAttribute(String name, Object value) Stores an attribute in this request.voidOverrides the name of the character encoding used in the body of this request.protected voidsetContextImpl(WebappContext contextImpl) Set the underlyingWebappContextprotected voidsetContextPath(String contextPath) protected voidsetPathInfo(String pathInfo) voidsetServletPath(String servletPath) Programmatically set the servlet path value.Puts this request into asynchronous mode, and initializes itsAsyncContextwith the original (unwrapped) ServletRequest and ServletResponse objects.startAsync(ServletRequest servletRequest, ServletResponse servletResponse) Puts this request into asynchronous mode, and initializes itsAsyncContextwith the given request and response objects.<T extends HttpUpgradeHandler>
TCreate an instance ofHttpUpgradeHandlerfor an given class and uses it for the http protocol upgrade processing.
-
Field Details
-
request
The wrapped request. -
servletResponse
The corresponding servlet response -
usingInputStream
protected boolean usingInputStreamUsing stream flag. -
usingReader
protected boolean usingReaderUsing writer flag.
-
-
Constructor Details
-
HttpServletRequestImpl
protected HttpServletRequestImpl()Construct a wrapper for the specified request.
-
-
Method Details
-
create
-
initialize
public void initialize(Request request, HttpServletResponseImpl servletResponse, WebappContext context) throws IOException - Throws:
IOException
-
clone
Prevent cloning the facade.- Overrides:
clonein classObject- Throws:
CloneNotSupportedException
-
getAttribute
Returns the value of the named attribute as anObject, ornullif 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
jakarta.servlet.request.X509Certificatecan 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 aRequestDispatchercall.Attribute names should follow the same conventions as package names. This specification reserves names matching
java.*,javax.*, andsun.*.- Specified by:
getAttributein interfaceServletRequest- Parameters:
name- aStringspecifying the name of the attribute- Returns:
- an
Objectcontaining the value of the attribute, ornullif the attribute does not exist
-
getAttributeNames
Returns anEnumerationcontaining the names of the attributes available to this request. This method returns an emptyEnumerationif the request has no attributes available to it.- Specified by:
getAttributeNamesin interfaceServletRequest- Returns:
- an
Enumerationof strings containing the names of the request's attributes
-
getCharacterEncoding
Returns the name of the character encoding used in the body of this request. This method returnsnullif no request encoding character encoding has been specified. The following methods for specifying the request character encoding are consulted, in decreasing order of priority: per request, per web app (usingServletContext.setRequestCharacterEncoding(java.lang.String), deployment descriptor), and per container (for all web applications deployed in that container, using vendor specific configuration).- Specified by:
getCharacterEncodingin interfaceServletRequest- Returns:
- a
Stringcontaining the name of the character encoding, ornullif the request does not specify a character encoding
-
setCharacterEncoding
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(). Otherwise, it has no effect.- Specified by:
setCharacterEncodingin interfaceServletRequest- Parameters:
env-Stringcontaining the name of the character encoding.- Throws:
UnsupportedEncodingException- if this ServletRequest is still in a state where a character encoding may be set, but the specified encoding is invalid
-
getContentLength
public int getContentLength()Returns the length, in bytes, of the request body and made available by the input stream, or -1 if the length is not known or is greater than Integer.MAX_VALUE.- Specified by:
getContentLengthin 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.
-
getContentLengthLong
public long getContentLengthLong()Description copied from interface:ServletRequestReturns the length, in bytes, of the request body and made available by the input stream, or -1 if the length is not known.- Specified by:
getContentLengthLongin interfaceServletRequest- Returns:
- a long containing the length of the request body or -1L if the length is not known
-
getContentType
Returns the MIME type of the body of the request, ornullif the type is not known.- Specified by:
getContentTypein interfaceServletRequest- Returns:
- a
Stringcontaining the name of the MIME type of the request, or null if the type is not known
-
getInputStream
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:
getInputStreamin interfaceServletRequest- Returns:
- a
ServletInputStreamobject containing the body of the request - Throws:
IOException- if an input or output exception occurred
-
getParameter
Returns the value of a request parameter as aString, ornullif 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:
getParameterin interfaceServletRequest- Parameters:
name- aStringspecifying the name of the parameter- Returns:
- a
Stringrepresenting the single value of the parameter - See Also:
-
getParameterNames
Returns anEnumerationofStringobjects containing the names of the parameters contained in this request. If the request has no parameters, the method returns an emptyEnumeration.- Specified by:
getParameterNamesin interfaceServletRequest- Returns:
- an
EnumerationofStringobjects, eachStringcontaining the name of a request parameter; or an emptyEnumerationif the request has no parameters
-
getParameterValues
Returns an array ofStringobjects containing all of the values the given request parameter has, ornullif the parameter does not exist.If the parameter has a single value, the array has a length of 1.
- Specified by:
getParameterValuesin interfaceServletRequest- Parameters:
name- aStringcontaining the name of the parameter whose value is requested- Returns:
- an array of
Stringobjects containing the parameter's values - See Also:
-
getParameterMap
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:
getParameterMapin 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.
-
getProtocol
Returns the name and version of the protocol the request uses in the form protocol/majorVersion.minorVersion, for example, HTTP/1.1.- Specified by:
getProtocolin interfaceServletRequest- Returns:
- a
Stringcontaining the protocol name and version number
-
getScheme
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:
getSchemein interfaceServletRequest- Returns:
- a
Stringcontaining the name of the scheme used to make this request
-
getServerName
Returns the host name of the server to which the request was sent. It may be derived from a protocol specific mechanism, such as theHostheader, or the HTTP/2 authority, or RFC 7239, otherwise the resolved server name or the server IP address.- Specified by:
getServerNamein interfaceServletRequest- Returns:
- a
Stringcontaining the name of the server
-
getServerPort
public int getServerPort()Returns the port number to which the request was sent. It may be derived from a protocol specific mechanism, such as theHostheader, or HTTP authority, or RFC 7239, otherwise the server port where the client connection was accepted on.- Specified by:
getServerPortin interfaceServletRequest- Returns:
- an integer specifying the port number
-
getReader
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:
getReaderin interfaceServletRequest- Returns:
- a
BufferedReadercontaining 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:
-
getRemoteAddr
Returns the Internet Protocol (IP) of the remote end of the connection on which the request was received. By default this is either the address of the client or last proxy that sent the request. In some cases a protocol specific mechanism, such as RFC 7239, may be used to obtain an address different to that of the actual TCP/IP connection.- Specified by:
getRemoteAddrin interfaceServletRequest- Returns:
- a
Stringcontaining an IP address
-
getRemoteHost
Returns the fully qualified name of the address returned byServletRequest.getRemoteAddr(). If the engine cannot or chooses not to resolve the hostname (to improve performance), this method returns the IP address.- Specified by:
getRemoteHostin interfaceServletRequest- Returns:
- a
Stringcontaining a fully qualified name or IP address.
-
setAttribute
Description copied from interface:ServletRequestStores 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.
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:
setAttributein interfaceServletRequest- Parameters:
name- aStringspecifying the name of the attributevalue- theObjectto be stored
-
removeAttribute
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.*,javax.*, andcom.sun.*, are reserved for use by Sun Microsystems.- Specified by:
removeAttributein interfaceServletRequest- Parameters:
name- aStringspecifying the name of the attribute to remove
-
getLocale
Returns the preferredLocalethat 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:
getLocalein interfaceServletRequest- Returns:
- the preferred
Localefor the client
-
getLocales
Returns anEnumerationofLocaleobjects 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 anEnumerationcontaining oneLocale, the default locale for the server.- Specified by:
getLocalesin interfaceServletRequest- Returns:
- an
Enumerationof preferredLocaleobjects for the client
-
isSecure
public boolean isSecure()Returns a boolean indicating whether this request was made using a secure channel, such as HTTPS.- Specified by:
isSecurein interfaceServletRequest- Returns:
- a boolean indicating if the request was made using a secure channel
-
getRequestDispatcher
Returns aRequestDispatcherobject that acts as a wrapper for the resource located at the given path. ARequestDispatcherobject 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
nullif the servlet container cannot return aRequestDispatcher.Using a RequestDispatcher, requests may be dispatched to any part of the web application bypassing both implicit (no direct access to WEB-INF or META-INF) and explicit (defined by the web application) security constraints. Unsanitized user provided data must not be used to construct the path passed to the RequestDispatcher as it is very likely to create a security vulnerability in the application.
The difference between this method and
ServletContext.getRequestDispatcher(java.lang.String)is that this method can take a relative path.- Specified by:
getRequestDispatcherin interfaceServletRequest- Parameters:
path- aStringspecifying the pathname to the resource. If it is relative, it must be relative against the current servlet.- Returns:
- a
RequestDispatcherobject that acts as a wrapper for the resource at the specified path, ornullif the servlet container cannot return aRequestDispatcher - See Also:
-
getAuthType
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 authenticatednullis returned.- Specified by:
getAuthTypein 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
nullif the request was not authenticated.
-
getGrizzlyCookies
-
getDateHeader
Returns the value of the specified request header as alongvalue that represents aDateobject. 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:
getDateHeaderin interfaceHttpServletRequest- Parameters:
name- aStringspecifying the name of the header- Returns:
- a
longvalue 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
-
getHeader
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:
getHeaderin interfaceHttpServletRequest- Parameters:
name- aStringspecifying the header name- Returns:
- a
Stringcontaining the value of the requested header, ornullif the request does not have a header of that name
-
getHeaders
Returns all the values of the specified request header as anEnumerationofStringobjects.Some headers, such as
Accept-Languagecan 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:
getHeadersin interfaceHttpServletRequest- Parameters:
name- aStringspecifying the header name- Returns:
- an
Enumerationcontaining 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
-
getHeaderNames
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:
getHeaderNamesin 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
-
getIntHeader
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:
getIntHeaderin interfaceHttpServletRequest- Parameters:
name- aStringspecifying 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
-
getMethod
Returns the name of the HTTP method with which this request was made, for example, GET, POST, or PUT.- Specified by:
getMethodin interfaceHttpServletRequest- Returns:
- a
Stringspecifying the name of the method with which this request was made
-
getPathInfo
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
nullif there was no extra path information.- Specified by:
getPathInfoin interfaceHttpServletRequest- Returns:
- a
Stringspecifying extra path information that comes after the servlet path but before the query string in the request URL; ornullif the URL does not have any extra path information. The path will be canonicalized as per section 3.5 of the specification. This method will not return any encoded characters unless the container is configured specifically to allow them.
-
getPathTranslated
Returns any extra path information after the servlet name but before the query string, and translates it to a real path.If the URL does not have any extra path information, this method returns
nullor 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:
getPathTranslatedin interfaceHttpServletRequest- Returns:
- a
Stringspecifying the real path, ornullif the URL does not have any extra path information
-
getContextPath
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.It is possible that a servlet container may match a context by more than one context path. In such cases this method will return the actual context path used by the request and it may differ from the path returned by the
ServletContext.getContextPath()method. The context path returned byServletContext.getContextPath()should be considered as the prime or preferred context path of the application.- Specified by:
getContextPathin interfaceHttpServletRequest- Returns:
- a
Stringspecifying the portion of the request URI that indicates the context of the request. The path will be canonicalized as per section 3.5 of the specification. This method will not return any encoded characters unless the container is configured specifically to allow them. - See Also:
-
setContextPath
-
getQueryString
Returns the query string that is contained in the request URL after the path. This method returnsnullif the URL does not have a query string.- Specified by:
getQueryStringin interfaceHttpServletRequest- Returns:
- a
Stringcontaining the query string ornullif the URL contains no query string. The value is not decoded by the container.
-
getRemoteUser
Returns the login of the user making this request, if the user has been authenticated, ornullif the user has not been authenticated. Whether the user name is sent with each subsequent request depends on the browser and type of authentication.- Specified by:
getRemoteUserin interfaceHttpServletRequest- Returns:
- a
Stringspecifying the login of the user making this request, ornullif the user login is not known
-
isUserInRole
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.The role name "*" should never be used as an argument in calling
isUserInRole. Any call toisUserInRolewith "*" must return false. If the role-name of the security-role to be tested is "**", and the application has NOT declared an application security-role with role-name "**",isUserInRolemust only return true if the user has been authenticated; that is, only whenHttpServletRequest.getRemoteUser()andHttpServletRequest.getUserPrincipal()would both return a non-null value. Otherwise, the container must check the user for membership in the application role.- Specified by:
isUserInRolein interfaceHttpServletRequest- Parameters:
role- aStringspecifying the name of the role- Returns:
- a
booleanindicating whether the user making this request belongs to a given role;falseif the user has not been authenticated
-
getUserPrincipal
Returns ajava.security.Principalobject containing the name of the current authenticated user. If the user has not been authenticated, the method returnsnull.- Specified by:
getUserPrincipalin interfaceHttpServletRequest- Returns:
- a
java.security.Principalcontaining the name of the user making this request;nullif the user has not been authenticated
-
getRequestedSessionId
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:
getRequestedSessionIdin interfaceHttpServletRequest- Returns:
- a
Stringspecifying the session ID, ornullif the request did not specify a session ID - See Also:
-
getRequestURI
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: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 - Specified by:
getRequestURIin interfaceHttpServletRequest- Returns:
- a
Stringcontaining the part of the URL from the protocol name up to the query string
-
getRequestURL
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.If this request has been forwarded using
RequestDispatcher.forward(jakarta.servlet.ServletRequest, jakarta.servlet.ServletResponse), the server path in the reconstructed URL must reflect the path used to obtain the RequestDispatcher, and not the server path specified by the client.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:
getRequestURLin interfaceHttpServletRequest- Returns:
- a
StringBufferobject containing the reconstructed URL
-
getServletPath
Returns the part of this request's URL that calls the servlet. This path starts with a "/" character and includes the path to the servlet, but does not include any extra path information or a query string.This method will return an empty string ("") if the servlet used to process this request was matched using the "/*" pattern.
- Specified by:
getServletPathin interfaceHttpServletRequest- Returns:
- a
Stringcontaining the path of the servlet being called, as specified in the request URL, or an empty string if the servlet used to process the request is matched using the "/*" pattern. The path will be canonicalized as per section 3.5 of the specification. This method will not return any encoded characters unless the container is configured specifically to allow them.
-
getSession
Returns the currentHttpSessionassociated with this request or, if there is no current session andcreateis true, returns a new session.If
createisfalseand 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:
getSessionin interfaceHttpServletRequest- Parameters:
create-trueto create a new session for this request if necessary;falseto returnnullif there's no current session- Returns:
- the
HttpSessionassociated with this request ornullifcreateisfalseand the request has no valid session - See Also:
-
getSession
Returns the current session associated with this request, or if the request does not have a session, creates one.- Specified by:
getSessionin interfaceHttpServletRequest- Returns:
- the
HttpSessionassociated with this request - See Also:
-
changeSessionId
Description copied from interface:HttpServletRequestChange the session id of the current session associated with this request and return the new session id.- Specified by:
changeSessionIdin interfaceHttpServletRequest- Returns:
- the new session id
-
isRequestedSessionIdValid
public boolean isRequestedSessionIdValid()Checks whether the requested session ID is still valid.If the client did not specify any session ID, this method returns
false.- Specified by:
isRequestedSessionIdValidin interfaceHttpServletRequest- Returns:
trueif this request has an id for a valid session in the current session context;falseotherwise- See Also:
-
isRequestedSessionIdFromCookie
public boolean isRequestedSessionIdFromCookie()Checks whether the requested session ID was conveyed to the server as an HTTP cookie.
- Specified by:
isRequestedSessionIdFromCookiein interfaceHttpServletRequest- Returns:
trueif the session ID was conveyed to the server an an HTTP cookie; otherwise,false- See Also:
-
isRequestedSessionIdFromURL
public boolean isRequestedSessionIdFromURL()Checks whether the requested session ID was conveyed to the server as part of the request URL.
- Specified by:
isRequestedSessionIdFromURLin interfaceHttpServletRequest- Returns:
trueif the session ID was conveyed to the server as part of a URL; otherwise,false- See Also:
-
getCookies
Returns an array containing all of theCookieobjects the client sent with this request. This method returnsnullif no cookies were sent.- Specified by:
getCookiesin interfaceHttpServletRequest- Returns:
- an array of all the
Cookiesincluded with this request, ornullif the request has no cookies
-
getRemotePort
public int getRemotePort()Returns the Internet Protocol (IP) source port the remote end of the connection on which the request was received. By default this is either the port of the client or last proxy that sent the request. In some cases, protocol specific mechanisms such as RFC 7239 may be used to obtain a port different to that of the actual TCP/IP connection.- Specified by:
getRemotePortin interfaceServletRequest- Returns:
- an integer specifying the port number
-
getLocalName
Returns the fully qualified name of the address returned byServletRequest.getLocalAddr(). If the engine cannot or chooses not to resolve the hostname (to improve performance), this method returns the IP address.- Specified by:
getLocalNamein interfaceServletRequest- Returns:
- a
Stringcontaining the host name of the IP on which the request was received.
-
getLocalAddr
Returns the Internet Protocol (IP) address representing the interface on which the request was received. In some cases a protocol specific mechanism, such as RFC 7239, may be used to obtain an address different to that of the actual TCP/IP connection.- Specified by:
getLocalAddrin interfaceServletRequest- Returns:
- a
Stringcontaining an IP address.
-
getLocalPort
public int getLocalPort()Returns the Internet Protocol (IP) port number representing the interface on which the request was received. In some cases, a protocol specific mechanism such as RFC 7239 may be used to obtain an address different to that of the actual TCP/IP connection.- Specified by:
getLocalPortin interfaceServletRequest- Returns:
- an integer specifying a port number
-
getContextImpl
Return the underlyingWebappContext- Returns:
- Return the underlying
WebappContext
-
setContextImpl
Set the underlyingWebappContext- Parameters:
contextImpl- the underlyingWebappContext
-
setServletPath
Programmatically set the servlet path value. Default is an empty String.- Parameters:
servletPath- Servlet path to set.
-
setPathInfo
-
getRequest
-
getServletContext
Gets the servlet context to which this ServletRequest was last dispatched.- Specified by:
getServletContextin interfaceServletRequest- Returns:
- the servlet context to which this ServletRequest was last dispatched
-
getInternalRequest
Returns internal GrizzlyRequestassociated with this Holder.- Specified by:
getInternalRequestin interfaceHolders.RequestHolder
-
getDispatcherType
Gets the dispatcher type of this request.The dispatcher type of a request is used by the container to select the filters that need to be applied to the request: Only filters with matching dispatcher type and url patterns will be applied.
Allowing a filter that has been configured for multiple dispatcher types to query a request for its dispatcher type allows the filter to process the request differently depending on its dispatcher type.
The initial dispatcher type of a request is defined as
DispatcherType.REQUEST. The dispatcher type of a request dispatched viaRequestDispatcher.forward(ServletRequest, ServletResponse)orRequestDispatcher.include(ServletRequest, ServletResponse)is given asDispatcherType.FORWARDorDispatcherType.INCLUDE, respectively, while the dispatcher type of an asynchronous request dispatched via one of theAsyncContext.dispatch()methods is given asDispatcherType.ASYNC. Finally, the dispatcher type of a request dispatched to an error page by the container's error handling mechanism is given asDispatcherType.ERROR.- Specified by:
getDispatcherTypein interfaceServletRequest- Returns:
- the dispatcher type of this request
- See Also:
-
startAsync
Puts this request into asynchronous mode, and initializes itsAsyncContextwith the original (unwrapped) ServletRequest and ServletResponse objects.Calling this method will cause committal of the associated response to be delayed until
AsyncContext.complete()is called on the returnedAsyncContext, or the asynchronous operation has timed out.Calling
AsyncContext.hasOriginalRequestAndResponse()on the returned AsyncContext will returntrue. Any filters invoked in the outbound direction after this request was put into asynchronous mode may use this as an indication that any request and/or response wrappers that they added during their inbound invocation need not stay around for the duration of the asynchronous operation, and therefore any of their associated resources may be released.This method clears the list of
AsyncListenerinstances (if any) that were registered with the AsyncContext returned by the previous call to one of the startAsync methods, after calling each AsyncListener at itsonStartAsyncmethod.Subsequent invocations of this method, or its overloaded variant, will return the same AsyncContext instance, reinitialized as appropriate.
- Specified by:
startAsyncin interfaceServletRequest- Returns:
- the (re)initialized AsyncContext
- Throws:
IllegalStateException- if this request is within the scope of a filter or servlet that does not support asynchronous operations (that is,ServletRequest.isAsyncSupported()returns false), or if this method is called again without any asynchronous dispatch (resulting from one of theAsyncContext.dispatch()methods), is called outside the scope of any such dispatch, or is called again within the scope of the same dispatch, or if the response has already been closed- See Also:
-
startAsync
public AsyncContext startAsync(ServletRequest servletRequest, ServletResponse servletResponse) throws IllegalStateException Puts this request into asynchronous mode, and initializes itsAsyncContextwith the given request and response objects.The ServletRequest and ServletResponse arguments must be the same instances, or instances of
ServletRequestWrapperandServletResponseWrapperthat wrap them, that were passed to theservicemethod of the Servlet or thedoFiltermethod of the Filter, respectively, in whose scope this method is being called.Calling this method will cause committal of the associated response to be delayed until
AsyncContext.complete()is called on the returnedAsyncContext, or the asynchronous operation has timed out.Calling
AsyncContext.hasOriginalRequestAndResponse()on the returned AsyncContext will returnfalse, unless the passed in ServletRequest and ServletResponse arguments are the original ones or do not carry any application-provided wrappers. Any filters invoked in the outbound direction after this request was put into asynchronous mode may use this as an indication that some of the request and/or response wrappers that they added during their inbound invocation may need to stay in place for the duration of the asynchronous operation, and their associated resources may not be released. A ServletRequestWrapper applied during the inbound invocation of a filter may be released by the outbound invocation of the filter only if the givenservletRequest, which is used to initialize the AsyncContext and will be returned by a call toAsyncContext.getRequest(), does not contain said ServletRequestWrapper. The same holds true for ServletResponseWrapper instances.This method clears the list of
AsyncListenerinstances (if any) that were registered with the AsyncContext returned by the previous call to one of the startAsync methods, after calling each AsyncListener at itsonStartAsyncmethod.Subsequent invocations of this method, or its zero-argument variant, will return the same AsyncContext instance, reinitialized as appropriate. If a call to this method is followed by a call to its zero-argument variant, the specified (and possibly wrapped) request and response objects will remain locked in on the returned AsyncContext.
- Specified by:
startAsyncin interfaceServletRequest- Parameters:
servletRequest- the ServletRequest used to initialize the AsyncContextservletResponse- the ServletResponse used to initialize the AsyncContext- Returns:
- the (re)initialized AsyncContext
- Throws:
IllegalStateException- if this request is within the scope of a filter or servlet that does not support asynchronous operations (that is,ServletRequest.isAsyncSupported()returns false), or if this method is called again without any asynchronous dispatch (resulting from one of theAsyncContext.dispatch()methods), is called outside the scope of any such dispatch, or is called again within the scope of the same dispatch, or if the response has already been closed
-
isAsyncStarted
public boolean isAsyncStarted()Checks if this request has been put into asynchronous mode.A ServletRequest is put into asynchronous mode by calling
ServletRequest.startAsync()orServletRequest.startAsync(ServletRequest,ServletResponse)on it.This method returns false if this request was put into asynchronous mode, but has since been dispatched using one of the
AsyncContext.dispatch()methods or released from asynchronous mode via a call toAsyncContext.complete(). IfAsyncContext.dispatch()orAsyncContext.complete()is called before the container-initiated dispatch that calledServletRequest.startAsync()has returned to the container then this method must returntrueuntil the container-initiated dispatch that calledServletRequest.startAsync()has returned to the container.- Specified by:
isAsyncStartedin interfaceServletRequest- Returns:
- true if this request has been put into asynchronous mode, false otherwise
-
disableAsyncSupport
public void disableAsyncSupport()Disables async support for this request. Async support is disabled as soon as this request has passed a filter or servlet that does not support async (either via the designated annotation or declaratively). -
isAsyncSupported
public boolean isAsyncSupported()Checks if this request supports asynchronous operation.Asynchronous operation is disabled for this request if this request is within the scope of a filter or servlet that has not been annotated or flagged in the deployment descriptor as being able to support asynchronous handling.
- Specified by:
isAsyncSupportedin interfaceServletRequest- Returns:
- true if this request supports asynchronous operation, false otherwise
-
getAsyncContext
Gets the AsyncContext that was created or reinitialized by the most recent invocation ofServletRequest.startAsync()orServletRequest.startAsync(ServletRequest,ServletResponse)on this request.- Specified by:
getAsyncContextin interfaceServletRequest- Returns:
- the AsyncContext that was created or reinitialized by the most recent invocation of
ServletRequest.startAsync()orServletRequest.startAsync(ServletRequest,ServletResponse)on this request
-
upgrade
Create an instance ofHttpUpgradeHandlerfor an given class and uses it for the http protocol upgrade processing.- Specified by:
upgradein interfaceHttpServletRequest- Type Parameters:
T- TheClass, which extendsHttpUpgradeHandler, of thehandlerClass.- Parameters:
handlerClass- TheProtocolHandlerclass used for the upgrade.- Returns:
- an instance of the
HttpUpgradeHandler - Throws:
IOException- if an I/O error occurred during the upgrade- Since:
- Servlet 3.1
- See Also:
-
isUpgrade
public boolean isUpgrade() -
getHttpUpgradeHandler
-
authenticate
Description copied from interface:HttpServletRequestUse the container login mechanism configured for theServletContextto authenticate the user making this request.This method may modify and commit the argument
HttpServletResponse.- Specified by:
authenticatein interfaceHttpServletRequest- Parameters:
hsr- TheHttpServletResponseassociated with thisHttpServletRequest- Returns:
truewhen non-null values were or have been established as the values returned bygetUserPrincipal,getRemoteUser, andgetAuthType. Returnfalseif authentication is incomplete and the underlying login mechanism has committed, in the response, the message (e.g., challenge) and HTTP status code to be returned to the user.- Throws:
IOException- if an input or output error occurred while reading from this request or writing to the given responseServletException- if the authentication failed and the caller is responsible for handling the error (i.e., the underlying login mechanism did NOT establish the message and HTTP status code to be returned to the user)
-
login
Description copied from interface:HttpServletRequestValidate the provided username and password in the password validation realm used by the web container login mechanism configured for theServletContext.This method returns without throwing a
ServletExceptionwhen the login mechanism configured for theServletContextsupports username password validation, and when, at the time of the call to login, the identity of the caller of the request had not been established (i.e, all ofgetUserPrincipal,getRemoteUser, andgetAuthTypereturn null), and when validation of the provided credentials is successful. Otherwise, this method throws aServletExceptionas described below.When this method returns without throwing an exception, it must have established non-null values as the values returned by
getUserPrincipal,getRemoteUser, andgetAuthType.- Specified by:
loginin interfaceHttpServletRequest- Parameters:
string- TheStringvalue corresponding to the login identifier of the user.string1- The passwordStringcorresponding to the identified user.- Throws:
ServletException- if the configured login mechanism does not support username password authentication, or if a non-null caller identity had already been established (prior to the call to login), or if validation of the provided username and password fails.
-
logout
Description copied from interface:HttpServletRequestEstablishnullas the value returned whengetUserPrincipal,getRemoteUser, andgetAuthTypeis called on the request.- Specified by:
logoutin interfaceHttpServletRequest- Throws:
ServletException- if logout fails
-
getParts
Description copied from interface:HttpServletRequestGets all thePartcomponents of this request, provided that it is of typemultipart/form-data.If this request is of type
multipart/form-data, but does not contain anyPartcomponents, the returnedCollectionwill be empty.Any changes to the returned
Collectionmust not affect thisHttpServletRequest.- Specified by:
getPartsin interfaceHttpServletRequest- Returns:
- a (possibly empty)
Collectionof thePartcomponents of this request - Throws:
IOException- if an I/O error occurred during the retrieval of thePartcomponents of this requestServletException- if this request is not of typemultipart/form-data- See Also:
-
getPart
Description copied from interface:HttpServletRequestGets thePartwith the given name.- Specified by:
getPartin interfaceHttpServletRequest- Parameters:
string- the name of the requestedPart- Returns:
- The
Partwith the given name, ornullif this request is of typemultipart/form-data, but does not contain the requestedPart - Throws:
IOException- if an I/O error occurred during the retrieval of the requestedPartServletException- if this request is not of typemultipart/form-data- See Also:
-
getHttpServletMapping
Return the HttpServletMapping of the request.The mapping returned depends on the current
DispatcherTypeas obtained fromServletRequest.getDispatcherType():DispatcherType.REQUEST,DispatcherType.ASYNC,DispatcherType.ERROR- Return the mapping for the target of the dispatch i.e. the mapping for the current
Servlet. DispatcherType.INCLUDE- Return the mapping as prior to the current dispatch. i.e the mapping returned is unchanged by a call to
DispatcherType.FORWARD- Return the mapping for the target of the dispatch i.e. the mapping for the current
Servlet, unless theRequestDispatcherwas obtained viaServletContext.getNamedDispatcher(String), in which case return the mapping as prior to the current dispatch. i.e the mapping returned is changed during a call toRequestDispatcher.forward(ServletRequest, jakarta.servlet.ServletResponse)only if the dispatcher is not a named dispatcher.
RequestDispatcher.include(ServletRequest, jakarta.servlet.ServletResponse).For example:
- For a sequence Servlet1 --include--> Servlet2 --include--> Servlet3, a call to this method in Servlet3 will return the mapping for Servlet1.
- For a sequence Servlet1 --async--> Servlet2 --named-forward--> Servlet3, a call to this method in Servlet3 will return the mapping for Servlet2.
The returned object is immutable. Servlet 4.0 compliant implementations must override this method.
- Specified by:
getHttpServletMappingin interfaceHttpServletRequest- Returns:
- An instance of
HttpServletMappingdescribing the manner in which the current request was invoked.
-
newPushBuilder
Instantiates a new instance ofPushBuilderfor issuing server push responses from the current request. This method returns null if the current connection does not support server push, or server push has been disabled by the client via aSETTINGS_ENABLE_PUSHsettings frame value of0(zero).- Specified by:
newPushBuilderin interfaceHttpServletRequest- Returns:
- a
PushBuilderfor issuing server push responses from the current request, or null if push is not supported
-
getTrailerFields
Get the request trailer fields.The returned map is not backed by the
HttpServletRequestobject, so changes in the returned map are not reflected in theHttpServletRequestobject, and vice-versa.HttpServletRequest.isTrailerFieldsReady()should be called first to determine if it is safe to call this method without causing an exception.- Specified by:
getTrailerFieldsin interfaceHttpServletRequest- Returns:
- A map of trailer fields in which all the keys are in lowercase, regardless of the case they had at the
protocol level. If there are no trailer fields, yet
HttpServletRequest.isTrailerFieldsReady()is returning true, the empty map is returned.
-
isTrailerFieldsReady
public boolean isTrailerFieldsReady()Return a boolean indicating whether trailer fields are ready to read usingHttpServletRequest.getTrailerFields(). This methods returns true immediately if it is known that there is no trailer in the request, for instance, the underlying protocol (such as HTTP 1.0) does not supports the trailer fields, or the request is not in chunked encoding in HTTP 1.1. And the method also returns true if both of the following conditions are satisfied:- the application has read all the request data and an EOF indication has been returned from the
ServletRequest.getReader()orServletRequest.getInputStream(). - all the trailer fields sent by the client have been received. Note that it is possible that the client has sent no trailer fields.
- Specified by:
isTrailerFieldsReadyin interfaceHttpServletRequest- Returns:
- a boolean whether trailer fields are ready to read
- the application has read all the request data and an EOF indication has been returned from the
-
getRequestId
Description copied from interface:ServletRequestObtain a unique (within the lifetime of the Servlet container) identifier string for this request.There is no defined format for this string. The format is implementation dependent.
- Specified by:
getRequestIdin interfaceServletRequest- Returns:
- A unique identifier for the request
-
getProtocolRequestId
Description copied from interface:ServletRequestObtain the request identifier for this request as defined by the protocol in use. Note that some protocols do not define such an identifier.Examples of protocol provided request identifiers include:
- HTTP 1.x
- None, so the empty string should be returned
- HTTP 2
- The stream identifier
- HTTP 3
- The stream identifier
- AJP
- None, so the empty string should be returned
- Specified by:
getProtocolRequestIdin interfaceServletRequest- Returns:
- The request identifier if one is defined, otherwise an empty string
-
getServletConnection
Description copied from interface:ServletRequestObtain details of the network connection to the Servlet container that is being used by this request. The information presented may differ from information presented elsewhere in the Servlet API as raw information is presented without adjustments for, example, use of reverse proxies that may be applied elsewhere in the Servlet API.- Specified by:
getServletConnectionin interfaceServletRequest- Returns:
- The network connection details.
-