📄 servletutilities.html
字号:
<!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_03) on Mon Jun 07 16:42:35 BST 2004 --><TITLE>ServletUtilities (JFreeChart Class Library (version 0.9.20))</TITLE><META NAME="keywords" CONTENT="org.jfree.chart.servlet.ServletUtilities class"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="ServletUtilities (JFreeChart Class Library (version 0.9.20))";}</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="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <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="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-all.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="../../../../org/jfree/chart/servlet/DisplayChart.html" title="class in org.jfree.chart.servlet"><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="ServletUtilities.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">org.jfree.chart.servlet</FONT><BR>Class ServletUtilities</H2><PRE>java.lang.Object <IMG SRC="../../../../resources/inherit.gif" ALT="extended by"><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" 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="../../../../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" 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>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>static java.lang.String</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../org/jfree/chart/servlet/ServletUtilities.html#getTempFilePrefix()">getTempFilePrefix</A></B>()</CODE><BR> Returns the prefix for the temporary file names generated by this class.</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" title="class in org.jfree.chart">JFreeChart</A> chart, int width, int height, <A HREF="../../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">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" title="class in org.jfree.chart">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" title="class in org.jfree.chart">JFreeChart</A> chart, int width, int height, <A HREF="../../../../org/jfree/chart/ChartRenderingInfo.html" title="class in org.jfree.chart">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" title="class in org.jfree.chart">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><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#setTempFilePrefix(java.lang.String)">setTempFilePrefix</A></B>(java.lang.String prefix)</CODE><BR> Sets the prefix for the temporary file names generated by this class.</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="ServletUtilities()"><!-- --></A><H3>ServletUtilities</H3><PRE>public <B>ServletUtilities</B>()</PRE>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -