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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<div class="subTitle">javax.servlet.http</div>
<h2 title="Interface HttpServletRequest" class="title">Interface HttpServletRequest</h2>
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<dd><a href="../../../javax/servlet/http/HttpServletRequestWrapper.html" title="class in javax.servlet.http">HttpServletRequestWrapper</a></dd>
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<pre>public interface <span class="strong">HttpServletRequest</span>
extends <a href="../../../javax/servlet/ServletRequest.html" title="interface in javax.servlet">ServletRequest</a></pre>
<div class="block">Extends the <a href="../../../javax/servlet/ServletRequest.html" title="interface in javax.servlet"><code>ServletRequest</code></a> interface
 to provide request information for HTTP servlets. 

 <p>The servlet container creates an <code>HttpServletRequest</code> 
 object and passes it as an argument to the servlet's service
 methods (<code>doGet</code>, <code>doPost</code>, etc).</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#BASIC_AUTH">BASIC_AUTH</a></strong></code>
<div class="block">String identifier for Basic authentication.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#CLIENT_CERT_AUTH">CLIENT_CERT_AUTH</a></strong></code>
<div class="block">String identifier for Client Certificate authentication.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#DIGEST_AUTH">DIGEST_AUTH</a></strong></code>
<div class="block">String identifier for Digest authentication.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#FORM_AUTH">FORM_AUTH</a></strong></code>
<div class="block">String identifier for Form authentication.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getAuthType()">getAuthType</a></strong>()</code>
<div class="block">Returns the name of the authentication scheme used to protect
 the servlet.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getContextPath()">getContextPath</a></strong>()</code>
<div class="block">Returns the portion of the request URI that indicates the context
 of the request.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../javax/servlet/http/Cookie.html" title="class in javax.servlet.http">Cookie</a>[]</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getCookies()">getCookies</a></strong>()</code>
<div class="block">Returns an array containing all of the <code>Cookie</code>
 objects the client sent with this request.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getDateHeader(java.lang.String)">getDateHeader</a></strong>(java.lang.String&nbsp;name)</code>
<div class="block">Returns the value of the specified request header
 as a <code>long</code> value that represents a 
 <code>Date</code> object.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getHeader(java.lang.String)">getHeader</a></strong>(java.lang.String&nbsp;name)</code>
<div class="block">Returns the value of the specified request header
 as a <code>String</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.util.Enumeration</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getHeaderNames()">getHeaderNames</a></strong>()</code>
<div class="block">Returns an enumeration of all the header names
 this request contains.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.util.Enumeration</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getHeaders(java.lang.String)">getHeaders</a></strong>(java.lang.String&nbsp;name)</code>
<div class="block">Returns all the values of the specified request header
 as an <code>Enumeration</code> of <code>String</code> objects.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getIntHeader(java.lang.String)">getIntHeader</a></strong>(java.lang.String&nbsp;name)</code>
<div class="block">Returns the value of the specified request header
 as an <code>int</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getMethod()">getMethod</a></strong>()</code>
<div class="block">Returns the name of the HTTP method with which this 
 request was made, for example, GET, POST, or PUT.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getPathInfo()">getPathInfo</a></strong>()</code>
<div class="block">Returns any extra path information associated with
 the URL the client sent when it made this request.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getPathTranslated()">getPathTranslated</a></strong>()</code>
<div class="block">Returns any extra path information after the servlet name
 but before the query string, and translates it to a real
 path.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getQueryString()">getQueryString</a></strong>()</code>
<div class="block">Returns the query string that is contained in the request
 URL after the path.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getRemoteUser()">getRemoteUser</a></strong>()</code>
<div class="block">Returns the login of the user making this request, if the
 user has been authenticated, or <code>null</code> if the user 
 has not been authenticated.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getRequestedSessionId()">getRequestedSessionId</a></strong>()</code>
<div class="block">Returns the session ID specified by the client.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getRequestURI()">getRequestURI</a></strong>()</code>
<div class="block">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.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.lang.StringBuffer</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getRequestURL()">getRequestURL</a></strong>()</code>
<div class="block">Reconstructs the URL the client used to make the request.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getServletPath()">getServletPath</a></strong>()</code>
<div class="block">Returns the part of this request's URL that calls
 the servlet.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../javax/servlet/http/HttpSession.html" title="interface in javax.servlet.http">HttpSession</a></code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getSession()">getSession</a></strong>()</code>
<div class="block">Returns the current session associated with this request,
 or if the request does not have a session, creates one.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../javax/servlet/http/HttpSession.html" title="interface in javax.servlet.http">HttpSession</a></code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getSession(boolean)">getSession</a></strong>(boolean&nbsp;create)</code>
<div class="block">Returns the current <code>HttpSession</code>
 associated with this request or, if there is no
 current session and <code>create</code> is true, returns 
 a new session.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.security.Principal</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#getUserPrincipal()">getUserPrincipal</a></strong>()</code>
<div class="block">Returns a <code>java.security.Principal</code> object containing
 the name of the current authenticated user.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#isRequestedSessionIdFromCookie()">isRequestedSessionIdFromCookie</a></strong>()</code>
<div class="block">Checks whether the requested session ID came in as a cookie.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#isRequestedSessionIdFromUrl()">isRequestedSessionIdFromUrl</a></strong>()</code>
<div class="block"><strong>Deprecated.</strong>&nbsp;
<div class="block"><i>As of Version 2.1 of the Java Servlet
                                API, use <a href="../../../javax/servlet/http/HttpServletRequest.html#isRequestedSessionIdFromURL()"><code>isRequestedSessionIdFromURL()</code></a>
                                instead.</i></div>
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#isRequestedSessionIdFromURL()">isRequestedSessionIdFromURL</a></strong>()</code>
<div class="block">Checks whether the requested session ID came in as part of the 
 request URL.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#isRequestedSessionIdValid()">isRequestedSessionIdValid</a></strong>()</code>
<div class="block">Checks whether the requested session ID is still valid.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpServletRequest.html#isUserInRole(java.lang.String)">isUserInRole</a></strong>(java.lang.String&nbsp;role)</code>
<div class="block">Returns a boolean indicating whether the authenticated user is included
 in the specified logical "role".</div>
</td>
</tr>
</table>
<ul class="blockList">
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<h3>Methods inherited from interface&nbsp;javax.servlet.<a href="../../../javax/servlet/ServletRequest.html" title="interface in javax.servlet">ServletRequest</a></h3>
<code><a href="../../../javax/servlet/ServletRequest.html#getAttribute(java.lang.String)">getAttribute</a>, <a href="../../../javax/servlet/ServletRequest.html#getAttributeNames()">getAttributeNames</a>, <a href="../../../javax/servlet/ServletRequest.html#getCharacterEncoding()">getCharacterEncoding</a>, <a href="../../../javax/servlet/ServletRequest.html#getContentLength()">getContentLength</a>, <a href="../../../javax/servlet/ServletRequest.html#getContentType()">getContentType</a>, <a href="../../../javax/servlet/ServletRequest.html#getInputStream()">getInputStream</a>, <a href="../../../javax/servlet/ServletRequest.html#getLocalAddr()">getLocalAddr</a>, <a href="../../../javax/servlet/ServletRequest.html#getLocale()">getLocale</a>, <a href="../../../javax/servlet/ServletRequest.html#getLocales()">getLocales</a>, <a href="../../../javax/servlet/ServletRequest.html#getLocalName()">getLocalName</a>, <a href="../../../javax/servlet/ServletRequest.html#getLocalPort()">getLocalPort</a>, <a href="../../../javax/servlet/ServletRequest.html#getParameter(java.lang.String)">getParameter</a>, <a href="../../../javax/servlet/ServletRequest.html#getParameterMap()">getParameterMap</a>, <a href="../../../javax/servlet/ServletRequest.html#getParameterNames()">getParameterNames</a>, <a href="../../../javax/servlet/ServletRequest.html#getParameterValues(java.lang.String)">getParameterValues</a>, <a href="../../../javax/servlet/ServletRequest.html#getProtocol()">getProtocol</a>, <a href="../../../javax/servlet/ServletRequest.html#getReader()">getReader</a>, <a href="../../../javax/servlet/ServletRequest.html#getRealPath(java.lang.String)">getRealPath</a>, <a href="../../../javax/servlet/ServletRequest.html#getRemoteAddr()">getRemoteAddr</a>, <a href="../../../javax/servlet/ServletRequest.html#getRemoteHost()">getRemoteHost</a>, <a href="../../../javax/servlet/ServletRequest.html#getRemotePort()">getRemotePort</a>, <a href="../../../javax/servlet/ServletRequest.html#getRequestDispatcher(java.lang.String)">getRequestDispatcher</a>, <a href="../../../javax/servlet/ServletRequest.html#getScheme()">getScheme</a>, <a href="../../../javax/servlet/ServletRequest.html#getServerName()">getServerName</a>, <a href="../../../javax/servlet/ServletRequest.html#getServerPort()">getServerPort</a>, <a href="../../../javax/servlet/ServletRequest.html#isSecure()">isSecure</a>, <a href="../../../javax/servlet/ServletRequest.html#removeAttribute(java.lang.String)">removeAttribute</a>, <a href="../../../javax/servlet/ServletRequest.html#setAttribute(java.lang.String,%20java.lang.Object)">setAttribute</a>, <a href="../../../javax/servlet/ServletRequest.html#setCharacterEncoding(java.lang.String)">setCharacterEncoding</a></code></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
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<li class="blockList">
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<ul class="blockList">
<li class="blockList"><a name="field_detail">
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<h3>Field Detail</h3>
<a name="BASIC_AUTH">
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<h4>BASIC_AUTH</h4>
<pre>static final&nbsp;java.lang.String BASIC_AUTH</pre>
<div class="block">String identifier for Basic authentication. Value "BASIC"</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#javax.servlet.http.HttpServletRequest.BASIC_AUTH">Constant Field Values</a></dd></dl>
</li>
</ul>
<a name="FORM_AUTH">
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<h4>FORM_AUTH</h4>
<pre>static final&nbsp;java.lang.String FORM_AUTH</pre>
<div class="block">String identifier for Form authentication. Value "FORM"</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#javax.servlet.http.HttpServletRequest.FORM_AUTH">Constant Field Values</a></dd></dl>
</li>
</ul>
<a name="CLIENT_CERT_AUTH">
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<h4>CLIENT_CERT_AUTH</h4>
<pre>static final&nbsp;java.lang.String CLIENT_CERT_AUTH</pre>
<div class="block">String identifier for Client Certificate authentication. Value "CLIENT_CERT"</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#javax.servlet.http.HttpServletRequest.CLIENT_CERT_AUTH">Constant Field Values</a></dd></dl>
</li>
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<h4>DIGEST_AUTH</h4>
<pre>static final&nbsp;java.lang.String DIGEST_AUTH</pre>
<div class="block">String identifier for Digest authentication. Value "DIGEST"</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../constant-values.html#javax.servlet.http.HttpServletRequest.DIGEST_AUTH">Constant Field Values</a></dd></dl>
</li>
</ul>
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</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method_detail">
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<h3>Method Detail</h3>
<a name="getAuthType()">
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<ul class="blockList">
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<h4>getAuthType</h4>
<pre>java.lang.String&nbsp;getAuthType()</pre>
<div class="block">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 authenticated <code>null</code> is returned. 

 <p>Same as the value of the CGI variable AUTH_TYPE.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>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
                        <code>null</code> if the request was 
                        not authenticated.</dd></dl>
</li>
</ul>
<a name="getCookies()">
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<ul class="blockList">
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<h4>getCookies</h4>
<pre><a href="../../../javax/servlet/http/Cookie.html" title="class in javax.servlet.http">Cookie</a>[]&nbsp;getCookies()</pre>
<div class="block">Returns an array containing all of the <code>Cookie</code>
 objects the client sent with this request.
 This method returns <code>null</code> if no cookies were sent.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>an array of all the <code>Cookies</code>
                        included with this request, or <code>null</code>
                        if the request has no cookies</dd></dl>
</li>
</ul>
<a name="getDateHeader(java.lang.String)">
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<h4>getDateHeader</h4>
<pre>long&nbsp;getDateHeader(java.lang.String&nbsp;name)</pre>
<div class="block">Returns the value of the specified request header
 as a <code>long</code> value that represents a 
 <code>Date</code> object. Use this method with
 headers that contain dates, such as
 <code>If-Modified-Since</code>. 

 <p>The date is returned as
 the number of milliseconds since January 1, 1970 GMT.
 The header name is case insensitive.

 <p>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 <code>IllegalArgumentException</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - a <code>String</code> specifying the
                                name of the header</dd>
<dt><span class="strong">Returns:</span></dt><dd>a <code>long</code> 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</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - If the header value
                                                        can't be converted
                                                        to a date</dd></dl>
</li>
</ul>
<a name="getHeader(java.lang.String)">
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<h4>getHeader</h4>
<pre>java.lang.String&nbsp;getHeader(java.lang.String&nbsp;name)</pre>
<div class="block">Returns the value of the specified request header
 as a <code>String</code>. If the request did not include a header
 of the specified name, this method returns <code>null</code>.
 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.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - a <code>String</code> specifying the
                                header name</dd>
<dt><span class="strong">Returns:</span></dt><dd>a <code>String</code> containing the
                                value of the requested
                                header, or <code>null</code>
                                if the request does not
                                have a header of that name</dd></dl>
</li>
</ul>
<a name="getHeaders(java.lang.String)">
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<h4>getHeaders</h4>
<pre>java.util.Enumeration&nbsp;getHeaders(java.lang.String&nbsp;name)</pre>
<div class="block">Returns all the values of the specified request header
 as an <code>Enumeration</code> of <code>String</code> objects.

 <p>Some headers, such as <code>Accept-Language</code> can be sent
 by clients as several headers each with a different value rather than
 sending the header as a comma separated list.

 <p>If the request did not include any headers
 of the specified name, this method returns an empty
 <code>Enumeration</code>.
 The header name is case insensitive. You can use
 this method with any request header.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - a <code>String</code> specifying the
                                header name</dd>
<dt><span class="strong">Returns:</span></dt><dd>an <code>Enumeration</code> 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</dd></dl>
</li>
</ul>
<a name="getHeaderNames()">
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<ul class="blockList">
<li class="blockList">
<h4>getHeaderNames</h4>
<pre>java.util.Enumeration&nbsp;getHeaderNames()</pre>
<div class="block">Returns an enumeration of all the header names
 this request contains. If the request has no
 headers, this method returns an empty enumeration.

 <p>Some servlet containers do not allow
 servlets to access headers using this method, in
 which case this method returns <code>null</code></div>
<dl><dt><span class="strong">Returns:</span></dt><dd>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,
                                <code>null</code></dd></dl>
</li>
</ul>
<a name="getIntHeader(java.lang.String)">
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<h4>getIntHeader</h4>
<pre>int&nbsp;getIntHeader(java.lang.String&nbsp;name)</pre>
<div class="block">Returns the value of the specified request header
 as an <code>int</code>. 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 a <code>NumberFormatException</code>.

 <p>The header name is case insensitive.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - a <code>String</code> specifying the name
                                of a request header</dd>
<dt><span class="strong">Returns:</span></dt><dd>an integer expressing the value 
                                of the request header or -1
                                if the request doesn't have a
                                header of this name</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.NumberFormatException</code> - If the header value
                                                        can't be converted
                                                        to an <code>int</code></dd></dl>
</li>
</ul>
<a name="getMethod()">
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<h4>getMethod</h4>
<pre>java.lang.String&nbsp;getMethod()</pre>
<div class="block">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.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>String</code> 
                                specifying the name
                                of the method with which
                                this request was made</dd></dl>
</li>
</ul>
<a name="getPathInfo()">
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<h4>getPathInfo</h4>
<pre>java.lang.String&nbsp;getPathInfo()</pre>
<div class="block">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.

 <p>This method returns <code>null</code> if there
 was no extra path information.

 <p>Same as the value of the CGI variable PATH_INFO.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>String</code>, decoded by the
                        web container, specifying 
                        extra path information that comes
                        after the servlet path but before
                        the query string in the request URL;
                        or <code>null</code> if the URL does not have
                        any extra path information</dd></dl>
</li>
</ul>
<a name="getPathTranslated()">
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<h4>getPathTranslated</h4>
<pre>java.lang.String&nbsp;getPathTranslated()</pre>
<div class="block">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.

 <p>If the URL does not have any extra path information,
 this method returns <code>null</code> 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.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>String</code> specifying the
                        real path, or <code>null</code> if
                        the URL does not have any extra path
                        information</dd></dl>
</li>
</ul>
<a name="getContextPath()">
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<h4>getContextPath</h4>
<pre>java.lang.String&nbsp;getContextPath()</pre>
<div class="block">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.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>String</code> specifying the
                        portion of the request URI that indicates the context
                        of the request</dd></dl>
</li>
</ul>
<a name="getQueryString()">
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<ul class="blockList">
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<h4>getQueryString</h4>
<pre>java.lang.String&nbsp;getQueryString()</pre>
<div class="block">Returns the query string that is contained in the request
 URL after the path. This method returns <code>null</code>
 if the URL does not have a query string. Same as the value
 of the CGI variable QUERY_STRING.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>String</code> containing the query
                        string or <code>null</code> if the URL 
                        contains no query string. The value is not
                        decoded by the container.</dd></dl>
</li>
</ul>
<a name="getRemoteUser()">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>getRemoteUser</h4>
<pre>java.lang.String&nbsp;getRemoteUser()</pre>
<div class="block">Returns the login of the user making this request, if the
 user has been authenticated, or <code>null</code> 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.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>String</code> specifying the login
                        of the user making this request, or <code>null</code>
                        if the user login is not known</dd></dl>
</li>
</ul>
<a name="isUserInRole(java.lang.String)">
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<ul class="blockList">
<li class="blockList">
<h4>isUserInRole</h4>
<pre>boolean&nbsp;isUserInRole(java.lang.String&nbsp;role)</pre>
<div class="block">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 returns <code>false</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>role</code> - a <code>String</code> specifying the name
                                of the role</dd>
<dt><span class="strong">Returns:</span></dt><dd>a <code>boolean</code> indicating whether
                        the user making this request belongs to a given role;
                        <code>false</code> if the user has not been 
                        authenticated</dd></dl>
</li>
</ul>
<a name="getUserPrincipal()">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getUserPrincipal</h4>
<pre>java.security.Principal&nbsp;getUserPrincipal()</pre>
<div class="block">Returns a <code>java.security.Principal</code> object containing
 the name of the current authenticated user. If the user has not been
 authenticated, the method returns <code>null</code>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>java.security.Principal</code> containing
                        the name of the user making this request;
                        <code>null</code> if the user has not been 
                        authenticated</dd></dl>
</li>
</ul>
<a name="getRequestedSessionId()">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>getRequestedSessionId</h4>
<pre>java.lang.String&nbsp;getRequestedSessionId()</pre>
<div class="block">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 returns
 <code>null</code>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>String</code> specifying the session
                        ID, or <code>null</code> if the request did
                        not specify a session ID</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../javax/servlet/http/HttpServletRequest.html#isRequestedSessionIdValid()"><code>isRequestedSessionIdValid()</code></a></dd></dl>
</li>
</ul>
<a name="getRequestURI()">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>getRequestURI</h4>
<pre>java.lang.String&nbsp;getRequestURI()</pre>
<div class="block">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:

 <table summary="Examples of Returned Values">
 <tr align=left><th>First line of HTTP request      </th>
 <th>     Returned Value</th>
 <tr><td>POST /some/path.html HTTP/1.1<td><td>/some/path.html
 <tr><td>GET http://foo.bar/a.html HTTP/1.0
 <td><td>/a.html
 <tr><td>HEAD /xyz?a=b HTTP/1.1<td><td>/xyz
 </table>

 <p>To reconstruct an URL with a scheme and host, use
 <a href="../../../javax/servlet/http/HttpServletRequest.html#getRequestURL()"><code>getRequestURL()</code></a>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>String</code> containing
                        the part of the URL from the 
                        protocol name up to the query string</dd></dl>
</li>
</ul>
<a name="getRequestURL()">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getRequestURL</h4>
<pre>java.lang.StringBuffer&nbsp;getRequestURL()</pre>
<div class="block">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.

 <p>Because this method returns a <code>StringBuffer</code>,
 not a string, you can modify the URL easily, for example,
 to append query parameters.

 <p>This method is useful for creating redirect messages
 and for reporting errors.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>StringBuffer</code> object containing
                        the reconstructed URL</dd></dl>
</li>
</ul>
<a name="getServletPath()">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>getServletPath</h4>
<pre>java.lang.String&nbsp;getServletPath()</pre>
<div class="block">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.

 <p>This method will return an empty string ("") if the
 servlet used to process this request was matched using
 the "/*" pattern.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a <code>String</code> 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.</dd></dl>
</li>
</ul>
<a name="getSession(boolean)">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getSession</h4>
<pre><a href="../../../javax/servlet/http/HttpSession.html" title="interface in javax.servlet.http">HttpSession</a>&nbsp;getSession(boolean&nbsp;create)</pre>
<div class="block">Returns the current <code>HttpSession</code>
 associated with this request or, if there is no
 current session and <code>create</code> is true, returns 
 a new session.

 <p>If <code>create</code> is <code>false</code>
 and the request has no valid <code>HttpSession</code>,
 this method returns <code>null</code>.

 <p>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.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>create</code> - <code>true</code> to create
                        a new session for this request if necessary; 
                        <code>false</code> to return <code>null</code>
                        if there's no current session</dd>
<dt><span class="strong">Returns:</span></dt><dd>the <code>HttpSession</code> associated 
                        with this request or <code>null</code> if
                        <code>create</code> is <code>false</code>
                        and the request has no valid session</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../javax/servlet/http/HttpServletRequest.html#getSession()"><code>getSession()</code></a></dd></dl>
</li>
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<a name="getSession()">
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<h4>getSession</h4>
<pre><a href="../../../javax/servlet/http/HttpSession.html" title="interface in javax.servlet.http">HttpSession</a>&nbsp;getSession()</pre>
<div class="block">Returns the current session associated with this request,
 or if the request does not have a session, creates one.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the <code>HttpSession</code> associated
                        with this request</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../javax/servlet/http/HttpServletRequest.html#getSession(boolean)"><code>getSession(boolean)</code></a></dd></dl>
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<pre>boolean&nbsp;isRequestedSessionIdValid()</pre>
<div class="block">Checks whether the requested session ID is still valid.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>true</code> if this
                                request has an id for a valid session
                                in the current session context;
                                <code>false</code> otherwise</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../javax/servlet/http/HttpServletRequest.html#getRequestedSessionId()"><code>getRequestedSessionId()</code></a>, 
<a href="../../../javax/servlet/http/HttpServletRequest.html#getSession(boolean)"><code>getSession(boolean)</code></a>, 
<a href="../../../javax/servlet/http/HttpSessionContext.html" title="interface in javax.servlet.http"><code>HttpSessionContext</code></a></dd></dl>
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<pre>boolean&nbsp;isRequestedSessionIdFromCookie()</pre>
<div class="block">Checks whether the requested session ID came in as a cookie.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the session ID
                                came in as a
                                cookie; otherwise, <code>false</code></dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../javax/servlet/http/HttpServletRequest.html#getSession(boolean)"><code>getSession(boolean)</code></a></dd></dl>
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<pre>boolean&nbsp;isRequestedSessionIdFromURL()</pre>
<div class="block">Checks whether the requested session ID came in as part of the 
 request URL.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the session ID
                                came in as part of a URL; otherwise,
                                <code>false</code></dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../../javax/servlet/http/HttpServletRequest.html#getSession(boolean)"><code>getSession(boolean)</code></a></dd></dl>
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<pre>boolean&nbsp;isRequestedSessionIdFromUrl()</pre>
<div class="block"><span class="strong">Deprecated.</span>&nbsp;<i>As of Version 2.1 of the Java Servlet
                                API, use <a href="../../../javax/servlet/http/HttpServletRequest.html#isRequestedSessionIdFromURL()"><code>isRequestedSessionIdFromURL()</code></a>
                                instead.</i></div>
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