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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Sep 11 11:26:59 BST 2003 --><TITLE>ServletUtilities (JFreeChart Class Library (version 0.9.12))</TITLE><META NAME="keywords" CONTENT="org.jfree.chart.servlet.ServletUtilities,ServletUtilities class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="ServletUtilities (JFreeChart Class Library (version 0.9.12))";}</SCRIPT><BODY BGCOLOR="white" onload="asd();"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A 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======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">org.jfree.chart.servlet</FONT><BR>Class ServletUtilities</H2><PRE>java.lang.Object | +--<B>org.jfree.chart.servlet.ServletUtilities</B></PRE><HR><DL><DT>public class <B>ServletUtilities</B><DT>extends java.lang.Object</DL><P>Utility class used for servlet related JFreeChart operations.<P><P><DL><DT><B>Author:</B></DT> <DD>Richard Atkinson</DD></DL><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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="../../../../org/jfree/chart/servlet/ServletUtilities.html#ServletUtilities()">ServletUtilities</A></B>()</CODE><BR> </TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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>protected static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#createTempDir()">createTempDir</A></B>()</CODE><BR> Creates the temporary directory if it does not exist.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#registerChartForDeletion(java.io.File, javax.servlet.http.HttpSession)">registerChartForDeletion</A></B>(java.io.File tempFile, javax.servlet.http.HttpSession session)</CODE><BR> Adds a ChartDeleter object to the session object with the name JFreeChart_Deleter if there is not already one bound to the session and adds the filename to the list of charts to be deleted.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#saveChartAsJPEG(org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo, javax.servlet.http.HttpSession)">saveChartAsJPEG</A></B>(<A HREF="../../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height, <A HREF="../../../../org/jfree/chart/ChartRenderingInfo.html">ChartRenderingInfo</A> info, javax.servlet.http.HttpSession session)</CODE><BR> Saves the chart as a JPEG format file in the temporary directory and populates the ChartRenderingInfo object which can be used to generate an HTML image map.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#saveChartAsJPEG(org.jfree.chart.JFreeChart, int, int, javax.servlet.http.HttpSession)">saveChartAsJPEG</A></B>(<A HREF="../../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height, javax.servlet.http.HttpSession session)</CODE><BR> Saves the chart as a JPEG format file in the temporary directory.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#saveChartAsPNG(org.jfree.chart.JFreeChart, int, int, org.jfree.chart.ChartRenderingInfo, javax.servlet.http.HttpSession)">saveChartAsPNG</A></B>(<A HREF="../../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height, <A HREF="../../../../org/jfree/chart/ChartRenderingInfo.html">ChartRenderingInfo</A> info, javax.servlet.http.HttpSession session)</CODE><BR> Saves the chart as a PNG format file in the temporary directory and populates the ChartRenderingInfo object which can be used to generate an HTML image map.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#saveChartAsPNG(org.jfree.chart.JFreeChart, int, int, javax.servlet.http.HttpSession)">saveChartAsPNG</A></B>(<A HREF="../../../../org/jfree/chart/JFreeChart.html">JFreeChart</A> chart, int width, int height, javax.servlet.http.HttpSession session)</CODE><BR> Saves the chart as a PNG format file in the temporary directory.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#searchReplace(java.lang.String, java.lang.String, java.lang.String)">searchReplace</A></B>(java.lang.String inputString, java.lang.String searchString, java.lang.String replaceString)</CODE><BR> Perform a search/replace operation on a String There are String methods to do this since (JDK 1.4)</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#sendTempFile(java.io.File, javax.servlet.http.HttpServletResponse)">sendTempFile</A></B>(java.io.File file, javax.servlet.http.HttpServletResponse response)</CODE><BR> Binary streams the specified file to the HTTP response in 1KB chunks</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#sendTempFile(java.io.File, javax.servlet.http.HttpServletResponse, java.lang.String)">sendTempFile</A></B>(java.io.File file, javax.servlet.http.HttpServletResponse response, java.lang.String mimeType)</CODE><BR> Binary streams the specified file to the HTTP response in 1KB chunks</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#sendTempFile(java.lang.String, javax.servlet.http.HttpServletResponse)">sendTempFile</A></B>(java.lang.String filename, javax.servlet.http.HttpServletResponse response)</CODE><BR> Binary streams the specified file in the temporary directory to the HTTP response in 1KB chunks</TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TD></TR></TABLE><A NAME="ServletUtilities()"><!-- --></A><H3>ServletUtilities</H3><PRE>public <B>ServletUtilities</B>()</PRE>⌨️ 快捷键说明
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