request.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

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<B>Field Detail</B></FONT></TD>
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<A NAME="REQUEST"><!-- --></A><H3>
REQUEST</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>REQUEST</B></PRE>
<DL>
<DD>Represents the REQUEST parameter
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.geotools.data.ows.Request.REQUEST">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="VERSION"><!-- --></A><H3>
VERSION</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>VERSION</B></PRE>
<DL>
<DD>Represents the VERSION parameter
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.geotools.data.ows.Request.VERSION">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="WMTVER"><!-- --></A><H3>
WMTVER</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>WMTVER</B></PRE>
<DL>
<DD>Represents the WMTVER parameter
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.geotools.data.ows.Request.WMTVER">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="SERVICE"><!-- --></A><H3>
SERVICE</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>SERVICE</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.geotools.data.ows.Request.SERVICE">Constant Field Values</A></DL>
</DL>

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<A NAME="getFinalURL()"><!-- --></A><H3>
getFinalURL</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/net/URL.html" title="class or interface in java.net">URL</A> <B>getFinalURL</B>()</PRE>
<DL>
<DD>Once the properties of the request are configured, this will return
 the URL that points to the server and contains all of the appropriate
 name/value parameters.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>a URL that can be used to issue the request</DL>
</DD>
</DL>
<HR>

<A NAME="setProperty(java.lang.String, java.lang.String)"><!-- --></A><H3>
setProperty</H3>
<PRE>
public void <B>setProperty</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;name,
                        <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;value)</PRE>
<DL>
<DD>Sets the name/value property for this request.
 
 Note that when using this method, it is up to the programmer to
 provide their own encoding of <code>value</code> according to the
 OWS specifications! The code will not do this for you. 
 
 Different OWS specifications define different ways to do this. There are 
 notorious differences between WMS 1.1.1 (section 6.2.1) and 
 WMS 1.3.0 (section 6.3.2) for example.
 
 If value is null, "name" is removed from the properties table.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - the name of the property<DD><CODE>value</CODE> - the value of the property</DL>
</DD>
</DL>
<HR>

<A NAME="getProperties()"><!-- --></A><H3>
getProperties</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Properties.html" title="class or interface in java.util">Properties</A> <B>getProperties</B>()</PRE>
<DL>
<DD><DL>

<DT><B>Returns:</B><DD>a copy of this request's properties</DL>
</DD>
</DL>
<HR>

<A NAME="createResponse(java.lang.String, java.io.InputStream)"><!-- --></A><H3>
createResponse</H3>
<PRE>
public <A HREF="../../../../org/geotools/data/ows/Response.html" title="class in org.geotools.data.ows">Response</A> <B>createResponse</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;contentType,
                               <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/InputStream.html" title="class or interface in java.io">InputStream</A>&nbsp;inputStream)
                        throws <A HREF="../../../../org/geotools/ows/ServiceException.html" title="class in org.geotools.ows">ServiceException</A>,
                               <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Each Request must know how to create it's counterpart Response. 
 Given the content type and input stream (containin the response data), 
 this method must return an appropriate Response object.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>contentType</CODE> - the MIME type of the data in the inputStream<DD><CODE>inputStream</CODE> - contains the data from the response
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/geotools/ows/ServiceException.html" title="class in org.geotools.ows">ServiceException</A></CODE>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="requiresPost()"><!-- --></A><H3>
requiresPost</H3>
<PRE>
public boolean <B>requiresPost</B>()</PRE>
<DL>
<DD>This method indicates whether this request needs to transmit some data
 to the server using POST. If this returns true, performPostOutput() will be called
 during the connection, allowing the data to be written out to the server.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>true if this request needs POST support, false otherwise.</DL>
</DD>
</DL>
<HR>

<A NAME="getPostContentType()"><!-- --></A><H3>
getPostContentType</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>getPostContentType</B>()</PRE>
<DL>
<DD>If this request uses POST, it must specify the content type of the data
 that is to be written out during performPostOutput().
 
 For open web services, this is usually "application/xml".
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the MIME type of the data to be sent during the request</DL>
</DD>
</DL>
<HR>

<A NAME="performPostOutput(java.io.OutputStream)"><!-- --></A><H3>
performPostOutput</H3>
<PRE>
public void <B>performPostOutput</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/OutputStream.html" title="class or interface in java.io">OutputStream</A>&nbsp;outputStream)
                       throws <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>This is called during the connection to the server, allowing this
 request to write out data to the server by using the provided
 outputStream.
 
 Implementors of this method do not need to call outputStream.flush() or 
 outputStream.close(). The framework will call them immediately after
 calling this method.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>outputStream</CODE> - 
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/IOException.html" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
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