httputils.html
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Java 2 Platform EE v1.3: Class HttpUtils
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javax.servlet.http</FONT>
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Class HttpUtils</H2>
<PRE>
java.lang.Object
|
+--<B>javax.servlet.http.HttpUtils</B>
</PRE>
<HR>
<B>Deprecated.</B> <I>As of Java(tm) Servlet API 2.3.
These methods were only useful
with the default encoding and have been moved
to the request interfaces.</I>
<P>
<DL>
<DT>public class <B>HttpUtils</B><DT>extends java.lang.Object</DL>
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<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpUtils.html#HttpUtils()">HttpUtils</A></B>()</CODE>
<BR>
<B>Deprecated.</B> Constructs an empty <code>HttpUtils</code> object.</TD>
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<CODE>static java.lang.StringBuffer</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpUtils.html#getRequestURL(javax.servlet.http.HttpServletRequest)">getRequestURL</A></B>(<A HREF="../../../javax/servlet/http/HttpServletRequest.html">HttpServletRequest</A> req)</CODE>
<BR>
<B>Deprecated.</B> Reconstructs the URL the client used to make the request,
using information in the <code>HttpServletRequest</code> object.</TD>
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<CODE>static java.util.Hashtable</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpUtils.html#parsePostData(int, javax.servlet.ServletInputStream)">parsePostData</A></B>(int len,
<A HREF="../../../javax/servlet/ServletInputStream.html">ServletInputStream</A> in)</CODE>
<BR>
<B>Deprecated.</B> Parses data from an HTML form that the client sends to
the server using the HTTP POST method and the
<i>application/x-www-form-urlencoded</i> MIME type.</TD>
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<CODE>static java.util.Hashtable</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../javax/servlet/http/HttpUtils.html#parseQueryString(java.lang.String)">parseQueryString</A></B>(java.lang.String s)</CODE>
<BR>
<B>Deprecated.</B> Parses a query string passed from the client to the
server and builds a <code>HashTable</code> object
with key-value pairs.</TD>
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<TD><B>Methods inherited from class java.lang.Object</B></TD>
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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<A NAME="HttpUtils()"><!-- --></A><H3>
HttpUtils</H3>
<PRE>
public <B>HttpUtils</B>()</PRE>
<DL>
<DD><B>Deprecated.</B> <DD>Constructs an empty <code>HttpUtils</code> object.</DL>
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<A NAME="parseQueryString(java.lang.String)"><!-- --></A><H3>
parseQueryString</H3>
<PRE>
public static java.util.Hashtable <B>parseQueryString</B>(java.lang.String s)</PRE>
<DL>
<DD><B>Deprecated.</B> <DD>Parses a query string passed from the client to the
server and builds a <code>HashTable</code> object
with key-value pairs.
The query string should be in the form of a string
packaged by the GET or POST method, that is, it
should have key-value pairs in the form <i>key=value</i>,
with each pair separated from the next by a & character.
<p>A key can appear more than once in the query string
with different values. However, the key appears only once in
the hashtable, with its value being
an array of strings containing the multiple values sent
by the query string.
<p>The keys and values in the hashtable are stored in their
decoded form, so
any + characters are converted to spaces, and characters
sent in hexadecimal notation (like <i>%xx</i>) are
converted to ASCII characters.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s</CODE> - a string containing the query to be parsed<DT><B>Returns:</B><DD>a <code>HashTable</code> object built
from the parsed key-value pairs<DT><B>Throws:</B><DD><CODE>java.lang.IllegalArgumentException</CODE> - if the query string
is invalid</DL>
</DD>
</DL>
<HR>
<A NAME="parsePostData(int, javax.servlet.ServletInputStream)"><!-- --></A><H3>
parsePostData</H3>
<PRE>
public static java.util.Hashtable <B>parsePostData</B>(int len,
<A HREF="../../../javax/servlet/ServletInputStream.html">ServletInputStream</A> in)</PRE>
<DL>
<DD><B>Deprecated.</B> <DD>Parses data from an HTML form that the client sends to
the server using the HTTP POST method and the
<i>application/x-www-form-urlencoded</i> MIME type.
<p>The data sent by the POST method contains key-value
pairs. A key can appear more than once in the POST data
with different values. However, the key appears only once in
the hashtable, with its value being
an array of strings containing the multiple values sent
by the POST method.
<p>The keys and values in the hashtable are stored in their
decoded form, so
any + characters are converted to spaces, and characters
sent in hexadecimal notation (like <i>%xx</i>) are
converted to ASCII characters.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>len</CODE> - an integer specifying the length,
in characters, of the
<code>ServletInputStream</code>
object that is also passed to this
method<DD><CODE>in</CODE> - the <code>ServletInputStream</code>
object that contains the data sent
from the client<DT><B>Returns:</B><DD>a <code>HashTable</code> object built
from the parsed key-value pairs<DT><B>Throws:</B><DD><CODE>java.lang.IllegalArgumentException</CODE> - if the data
sent by the POST method is invalid</DL>
</DD>
</DL>
<HR>
<A NAME="getRequestURL(javax.servlet.http.HttpServletRequest)"><!-- --></A><H3>
getRequestURL</H3>
<PRE>
public static java.lang.StringBuffer <B>getRequestURL</B>(<A HREF="../../../javax/servlet/http/HttpServletRequest.html">HttpServletRequest</A> req)</PRE>
<DL>
<DD><B>Deprecated.</B> <DD>Reconstructs the URL the client used to make the request,
using information in the <code>HttpServletRequest</code> object.
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.<DD><DL>
<DT><B>Parameters:</B><DD><CODE>req</CODE> - a <code>HttpServletRequest</code> object
containing the client's request<DT><B>Returns:</B><DD>a <code>StringBuffer</code> object containing
the reconstructed URL</DL>
</DD>
</DL>
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