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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.4.2) on Wed Apr 19 08:11:00 PDT 2006 --><TITLE>URLDataSource (JavaBeans Activation Framework API documentation)</TITLE><META NAME="keywords" CONTENT="javax.activation.URLDataSource class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="URLDataSource (JavaBeans Activation Framework API documentation)";}</SCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/URLDataSource.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javax/activation/MimetypesFileTypeMap.html" title="class in javax.activation"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="URLDataSource.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.activation</FONT><BR>Class URLDataSource</H2><PRE>java.lang.Object <IMG SRC="../../resources/inherit.gif" ALT="extended by"><B>javax.activation.URLDataSource</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A></DD></DL><HR><DL><DT>public class <B>URLDataSource</B><DT>extends java.lang.Object<DT>implements <A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation">DataSource</A></DL><P>The URLDataSource class provides an object that wraps a <code>URL</code> object in a DataSource interface. URLDataSource simplifies the handling of data described by URLs within the JavaBeans Activation Framework because this class can be used to create new DataHandlers. <i>NOTE: The DataHandler object creates a URLDataSource internally, when it is constructed with a URL.</i><P><P><DL><DT><B>See Also:</B><DD><A HREF="../../javax/activation/DataSource.html" title="interface in javax.activation"><CODE>DataSource</CODE></A>, <A HREF="../../javax/activation/DataHandler.html" title="class in javax.activation"><CODE>DataHandler</CODE></A></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../javax/activation/URLDataSource.html#URLDataSource(java.net.URL)">URLDataSource</A></B>(java.net.URL url)</CODE><BR> URLDataSource constructor.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></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/activation/URLDataSource.html#getContentType()">getContentType</A></B>()</CODE><BR> Returns the value of the URL content-type header field.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.io.InputStream</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/activation/URLDataSource.html#getInputStream()">getInputStream</A></B>()</CODE><BR> The getInputStream method from the URL.</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/activation/URLDataSource.html#getName()">getName</A></B>()</CODE><BR> Calls the <code>getFile</code> method on the URL used to instantiate the object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.io.OutputStream</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/activation/URLDataSource.html#getOutputStream()">getOutputStream</A></B>()</CODE><BR> The getOutputStream method from the URL.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> java.net.URL</CODE></FONT></TD><TD><CODE><B><A HREF="../../javax/activation/URLDataSource.html#getURL()">getURL</A></B>()</CODE><BR> Return the URL used to create this DataSource.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.Object</B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TD></TR></TABLE><A NAME="URLDataSource(java.net.URL)"><!-- --></A><H3>URLDataSource</H3><PRE>public <B>URLDataSource</B>(java.net.URL 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><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Method Detail</B></FONT></TD></TR></TABLE><A NAME="getContentType()"><!-- --></A><H3>getContentType</H3><PRE>public java.lang.String <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 java.lang.String <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 java.io.InputStream <B>getInputStream</B>() throws java.io.IOException</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>java.io.IOException</CODE></DL></DD></DL><HR><A NAME="getOutputStream()"><!-- --></A><H3>getOutputStream</H3><PRE>public java.io.OutputStream <B>getOutputStream</B>() throws java.io.IOException</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>java.io.IOException</CODE></DL></DD></DL><HR><A NAME="getURL()"><!-- --></A><H3>getURL</H3><PRE>public java.net.URL <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><!-- ========= END OF CLASS DATA ========= --><HR><!-- ======= START OF BOTTOM NAVBAR ====== --><A NAME="navbar_bottom"><!-- --></A><A HREF="#skip-navbar_bottom" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/URLDataSource.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../javax/activation/MimetypesFileTypeMap.html" title="class in javax.activation"><B>PREV CLASS</B></A> NEXT CLASS</FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="URLDataSource.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_bottom"></A><!-- ======== END OF BOTTOM NAVBAR ======= --><HR></BODY></HTML>⌨️ 快捷键说明
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