servletrequest.html
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Java 2 Platform EE v1.3: Interface ServletRequest
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SUMMARY: INNER | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
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javax.servlet</FONT>
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Interface ServletRequest</H2>
<DL>
<DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../javax/servlet/http/HttpServletRequest.html">HttpServletRequest</A></DD>
</DL>
<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../javax/servlet/ServletRequestWrapper.html">ServletRequestWrapper</A></DD>
</DL>
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<DL>
<DT>public interface <B>ServletRequest</B></DL>
<P>
Defines an object to provide client request information to a servlet. The
servlet container creates a <code>ServletRequest</code> object and passes
it as an argument to the servlet's <code>service</code> method.
<p>A <code>ServletRequest</code> object provides data including
parameter name and values, attributes, and an input stream.
Interfaces that extend <code>ServletRequest</code> can provide
additional protocol-specific data (for example, HTTP data is
provided by <A HREF="../../javax/servlet/http/HttpServletRequest.html"><CODE>HttpServletRequest</CODE></A>.
<P>
<DL>
<DT><B>See Also: </B><DD><A HREF="../../javax/servlet/http/HttpServletRequest.html"><CODE>HttpServletRequest</CODE></A></DL>
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<B>Method Summary</B></FONT></TD>
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<CODE> java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getAttribute(java.lang.String)">getAttribute</A></B>(java.lang.String name)</CODE>
<BR>
Returns the value of the named attribute as an <code>Object</code>,
or <code>null</code> if no attribute of the given name exists.</TD>
</TR>
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<CODE> java.util.Enumeration</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getAttributeNames()">getAttributeNames</A></B>()</CODE>
<BR>
Returns an <code>Enumeration</code> containing the
names of the attributes available to this request.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getCharacterEncoding()">getCharacterEncoding</A></B>()</CODE>
<BR>
Returns the name of the character encoding used in the body of this
request.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getContentLength()">getContentLength</A></B>()</CODE>
<BR>
Returns the length, in bytes, of the request body
and made available by the input stream, or -1 if the
length is not known.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getContentType()">getContentType</A></B>()</CODE>
<BR>
Returns the MIME type of the body of the request, or
<code>null</code> if the type is not known.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../javax/servlet/ServletInputStream.html">ServletInputStream</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getInputStream()">getInputStream</A></B>()</CODE>
<BR>
Retrieves the body of the request as binary data using
a <A HREF="../../javax/servlet/ServletInputStream.html"><CODE>ServletInputStream</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Locale</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getLocale()">getLocale</A></B>()</CODE>
<BR>
Returns the preferred <code>Locale</code> that the client will
accept content in, based on the Accept-Language header.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Enumeration</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getLocales()">getLocales</A></B>()</CODE>
<BR>
Returns an <code>Enumeration</code> of <code>Locale</code> objects
indicating, in decreasing order starting with the preferred locale, the
locales that are acceptable to the client based on the Accept-Language
header.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getParameter(java.lang.String)">getParameter</A></B>(java.lang.String name)</CODE>
<BR>
Returns the value of a request parameter as a <code>String</code>,
or <code>null</code> if the parameter does not exist.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Map</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getParameterMap()">getParameterMap</A></B>()</CODE>
<BR>
Returns a java.util.Map of the parameters of this request.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.util.Enumeration</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getParameterNames()">getParameterNames</A></B>()</CODE>
<BR>
Returns an <code>Enumeration</code> of <code>String</code>
objects containing the names of the parameters contained
in this request.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getParameterValues(java.lang.String)">getParameterValues</A></B>(java.lang.String name)</CODE>
<BR>
Returns an array of <code>String</code> objects containing
all of the values the given request parameter has, or
<code>null</code> if the parameter does not exist.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getProtocol()">getProtocol</A></B>()</CODE>
<BR>
Returns the name and version of the protocol the request uses
in the form <i>protocol/majorVersion.minorVersion</i>, for
example, HTTP/1.1.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.io.BufferedReader</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getReader()">getReader</A></B>()</CODE>
<BR>
Retrieves the body of the request as character data using
a <code>BufferedReader</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getRealPath(java.lang.String)">getRealPath</A></B>(java.lang.String path)</CODE>
<BR>
<B>Deprecated.</B> <I>As of Version 2.1 of the Java Servlet API,
use <A HREF="../../javax/servlet/ServletContext.html#getRealPath(java.lang.String)"><CODE>ServletContext.getRealPath(java.lang.String)</CODE></A> instead.</I></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getRemoteAddr()">getRemoteAddr</A></B>()</CODE>
<BR>
Returns the Internet Protocol (IP) address of the client
that sent the request.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getRemoteHost()">getRemoteHost</A></B>()</CODE>
<BR>
Returns the fully qualified name of the client that sent the
request.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../javax/servlet/RequestDispatcher.html">RequestDispatcher</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getRequestDispatcher(java.lang.String)">getRequestDispatcher</A></B>(java.lang.String path)</CODE>
<BR>
Returns a <A HREF="../../javax/servlet/RequestDispatcher.html"><CODE>RequestDispatcher</CODE></A> object that acts as a wrapper for
the resource located at the given path.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../javax/servlet/ServletRequest.html#getScheme()">getScheme</A></B>()</CODE>
<BR>
Returns the name of the scheme used to make this request,
for example,
<code>http</code>, <code>https</code>, or <code>ftp</code>.</TD>
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