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Servlet API Version 23
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getMethod
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public String getMethod()
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Returns the HTTP method contained in the first line of the request, eg, GET or POST
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getPathInfo
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public String getPathInfo()
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Returns the substring of the request URL that follows the servlet name, or null if there is no additional path information Same as the CGI variable PATH_INFO
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public String getPathTranslated()
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Returns the substring of the request URL that follows the servlet name converted to a real filesystem path, or null if there is no additional path information Same as the CGI variable PATH_TRANSLATED
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getQueryString
public String getQueryString()
Returns the substring of the request URL that follows the " ", or null if there is no query string Usually found only in GET requests Same as the CGI variable QUERY_STRING
getRemoteUser
public String getRemoteUser()
Returns the user name, if HTTP authentication is active and the user had logged in Returns null otherwise Same as the CGI variable REMOTE_USER
APPENDIXES
getRequestedSessionId
public String getRequestedSessionId()
JSP: The Complete Reference
Returns the value of the session ID returned by the client Usually the same as the current session, but may refer to an old expired session Returns null if the request does not specify a session ID
getRequestURI
public String getRequestURI()
Returns the substring of the request URL starting with the protocol name ( eg, http:// ) if present, and extending to but not including the query string (which starts with " ")
getRequestURL
public StringBuffer getRequestURL()
Reconstructs the entire URL used for the request Includes the protocol, server name, port number (if other than the default), and file name Does not include the query string
getServletPath
public String getServletPath()
Returns the part of this request s URL that calls the servlet This 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
getSession
public HttpSession getSession()
A convenience method that returns the value of HttpSessiongetSession(true)
getSession
public HttpSession getSession(boolean create)
Returns the current HttpSession object or creates a new one (if the create parameter is true) The returned value depends on whether the session already exists and whether the create parameter is true or false:
Appendix A:
Servlet API Version 23
Session Exists
false false true true
create
false true false true
Returned
null new session existing session existing session
getUserPrincipal
public Principal getUserPrincipal()
If the user has been authenticated, returns a javasecurityPrincipal object for the user Otherwise, the method returns null
isRequestedSessionIdFromCookie
public boolean isRequestedSessionIdFromCookie()
Returns true if the request session ID was received from a Cookie as opposed to being sent as part of the request URL
[deprecated] isRequestedSessionIdFromUrl
public boolean isRequestedSessionIdFromUrl()
No longer supported Use isRequestedSessionIdFromURL() instead
isRequestedSessionIdFromURL
public boolean isRequestedSessionIdFromURL()
Returns true if the requested session ID came in as part of the request URL as opposed to being sent from a Cookie
APPENDIXES
isRequestedSessionIdValid
public boolean isRequestedSessionIdValid()
Returns true if the request specifies the ID of a valid, active session
JSP: The Complete Reference
isUserInRole
public boolean isUserInRole(String role)
Returns true if the authenticated user is included in the specified logical "role" in the deployment descriptor
HttpServletRequestWrapper
Full Name: Type: Extends: Implements: javaxservlethttpHttpServletRequestWrapper Class javaxservletServletRequestWrapper javaxservlethttpHttpServletRequest
This class is a concrete implementation of HttpServletRequest which can be overriden in servlet-engine-neutral way to provide additional functionality to the request object By default, looks through to the corresponding servlet-engine-specific methods
Constructors
HttpServletRequestWrapper
public HttpServletRequestWrapper(HttpServletRequest request)
Creates a request object wrapping the given request
Methods
getAuthType
public String getAuthType()
If the server uses an authentication scheme like BASIC or SSL, returns the name of this scheme, otherwise returns null
getContextPath
public String getContextPath()
Appendix A:
Servlet API Version 23
Returns the portion of the request URI that specifies the servlet context (application) The path starts with but does not end with a "/" character
getCookies
public Cookie getCookies()
Returns an array containing all of the Cookie objects the client sent with this request Returns null if no cookies were sent
getDateHeader
public long getDateHeader(String name)
Given a request header name, converts the corresponding header value into a Date object, which is returned as a long value (the number of milliseconds since January 1, 1970) If the specified request header does not exist, returns -1
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