urldatasource.html

j2ee api,很好的api。我这现在有

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<A NAME="URLDataSource(java.net.URL)"><!-- --></A><H3>
URLDataSource</H3>
<PRE>
public <B>URLDataSource</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/net/URL.html" title="class or interface in java.net">URL</A>&nbsp;url)</PRE>
<DL>
<DD>URLDataSource constructor. The URLDataSource class will
 not open a connection to the URL until a method requiring it
 to do so is called.
<P>
<DT><B>Parameters:</B><DD><CODE>url</CODE> - The URL to be encapsulated in this object.</DL>

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<A NAME="getContentType()"><!-- --></A><H3>
getContentType</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>getContentType</B>()</PRE>
<DL>
<DD>Returns the value of the URL content-type header field.
 It calls the URL's <code>URLConnection.getContentType</code> method
 after retrieving a URLConnection object.
 <i>Note: this method attempts to call the <code>openConnection</code>
 method on the URL. If this method fails, or if a content type is not
 returned from the URLConnection, getContentType returns
 "application/octet-stream" as the content type.</i>
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../javax/activation/DataSource.html#getContentType()">getContentType</A></CODE> in interface <CODE><A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the content type.</DL>
</DD>
</DL>
<HR>

<A NAME="getName()"><!-- --></A><H3>
getName</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>getName</B>()</PRE>
<DL>
<DD>Calls the <code>getFile</code> method on the URL used to
 instantiate the object.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../javax/activation/DataSource.html#getName()">getName</A></CODE> in interface <CODE><A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the result of calling the URL's getFile method.</DL>
</DD>
</DL>
<HR>

<A NAME="getInputStream()"><!-- --></A><H3>
getInputStream</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/InputStream.html" title="class or interface in java.io">InputStream</A> <B>getInputStream</B>()
                           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>The getInputStream method from the URL. Calls the
 <code>openStream</code> method on the URL.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../javax/activation/DataSource.html#getInputStream()">getInputStream</A></CODE> in interface <CODE><A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the InputStream.
<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>
<HR>

<A NAME="getOutputStream()"><!-- --></A><H3>
getOutputStream</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/io/OutputStream.html" title="class or interface in java.io">OutputStream</A> <B>getOutputStream</B>()
                             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>The getOutputStream method from the URL. First an attempt is
 made to get the URLConnection object for the URL. If that
 succeeds, the getOutputStream method on the URLConnection
 is returned.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../javax/activation/DataSource.html#getOutputStream()">getOutputStream</A></CODE> in interface <CODE><A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the OutputStream.
<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>
<HR>

<A NAME="getURL()"><!-- --></A><H3>
getURL</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>getURL</B>()</PRE>
<DL>
<DD>Return the URL used to create this DataSource.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The URL.</DL>
</DD>
</DL>
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