我正在尝试在项目运行时制作饼图。饼图的值正在计算并由类别无线电的函数rq返回。 饼图在运行代码时形成，但只有在再次构建项目时才会显示它们。因此显示的饼图具有prvious run的值。如果我运行代码并制作饼图，这些将在我构建项目并再次运行时显示。因此存在滞后。如何显示当前的饼图而不在同一次运行中再次构建项目？请帮帮我。
<jsp:useBean id="radioques" scope="page" class="abc.radioques" />
<%
String q[] = new String[44];
int j;
for (int i = 0; i < 44; i++) {
j = 0;
j = i + 1;
q[i] = request.getParameter("question" + j);
}
radioques.rq(q);
%>
<jsp:useBean id="music" scope="page" class="abc.music" />
<%@ page import="java.io.*" %>
<%@ page import="org.jfree.chart.ChartFactory" %>
<%@ page import="org.jfree.chart.JFreeChart" %>
<%@ page import="org.jfree.chart.plot.PiePlot3D" %>
<%@ page import="org.jfree.data.general.DefaultPieDataset" %>
<%@ page import="org.jfree.chart.ChartUtilities" %>
<%@ page import="java.lang.*" %>
<%@ page import="java.awt.Font"%>
<%@ page import="org.jfree.chart.ChartPanel"%>
<%@ page import="org.jfree.chart.JFreeChart"%>
<%@ page import="org.jfree.chart.labels.*"%>
<%@ page import="org.jfree.chart.plot.MultiplePiePlot"%>
<%@ page import="org.jfree.chart.plot.PiePlot"%>
<%@ page import="org.jfree.data.category.CategoryDataset"%>
<%@ page import="org.jfree.data.general.DatasetUtilities"%>
<%@ page import="org.jfree.util.TableOrder"%>
<%@ page import="abc.radioques" %>
<%
radioques r = new radioques();
double temp[] = new double[5];
temp = r.rq(q);
DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue("O+ = " + Math.round(temp[0]), (double) (temp[0]));
dataset.setValue("O- = " + Math.round(100 - temp[0]), (100 - (double) (temp[0])));
JFreeChart chart = ChartFactory.createPieChart3D(
"Openness", // chart title
dataset, // data
true, // include legend
true,
false);
final PiePlot3D plot = (PiePlot3D) chart.getPlot();
plot.setStartAngle(270);
plot.setForegroundAlpha(0.60f);
plot.setInteriorGap(0.02);
int width = 640; /* Width of the image */
int height = 480; /* Height of the image */
File pieChart3D = new File("C:/Users/Prashant/Documents/NetBeansProjects/WebApplication4/web/piecharts/pie3D.jpeg");
ChartUtilities.saveChartAsJPEG(pieChart3D, chart, width, height);
DefaultPieDataset dataset1 = new DefaultPieDataset();
dataset1.setValue("C+ = " + Math.round(temp[1]), (double) (temp[1]));
dataset1.setValue("C- = " + Math.round(100 - temp[1]), (100 - (double) (temp[1])));
JFreeChart chart1 = ChartFactory.createPieChart3D(
"Conscientiousness", // chart title
dataset1, // data
true, // include legend
true,
false);
final PiePlot3D plot1 = (PiePlot3D) chart1.getPlot();
plot1.setStartAngle(270);
plot1.setForegroundAlpha(0.60f);
plot1.setInteriorGap(0.02);
int width1 = 640; /* Width of the image */
int height1 = 480; /* Height of the image */
File pieChart3D1 = new File("C:/Users/Prashant/Documents/NetBeansProjects/WebApplication4/web/piecharts/pie3D1.jpeg");
ChartUtilities.saveChartAsJPEG(pieChart3D1, chart1, width1, height1);
DefaultPieDataset dataset2 = new DefaultPieDataset();
dataset2.setValue("E+ = " + Math.round(temp[2]), (double) (temp[2]));
dataset2.setValue("E- = " + Math.round(100 - temp[2]), (100 - (double) (temp[2])));
JFreeChart chart2 = ChartFactory.createPieChart3D(
"Extraversion", // chart title
dataset2, // data
true, // include legend
true,
false);
final PiePlot3D plot2 = (PiePlot3D) chart2.getPlot();
plot2.setStartAngle(270);
plot2.setForegroundAlpha(0.60f);
plot1.setInteriorGap(0.02);
int width2 = 640; /* Width of the image */
int height2 = 480; /* Height of the image */
File pieChart3D2 = new File("C:/Users/Prashant/Documents/NetBeansProjects/WebApplication4/web/piecharts/pie3D2.jpeg");
ChartUtilities.saveChartAsJPEG(pieChart3D2, chart2, width2, height2);
DefaultPieDataset dataset3 = new DefaultPieDataset();
dataset3.setValue("A+ = " + Math.round(temp[3]), (double) (temp[3]));
dataset3.setValue("A- = " + Math.round(100 - temp[3]), (100 - (double) (temp[3])));
JFreeChart chart3 = ChartFactory.createPieChart3D(
"Agreeableness", // chart title
dataset3, // data
true, // include legend
true,
false);
final PiePlot3D plot3 = (PiePlot3D) chart3.getPlot();
plot3.setStartAngle(270);
plot3.setForegroundAlpha(0.60f);
plot3.setInteriorGap(0.02);
int width3 = 640; /* Width of the image */
int height3 = 480; /* Height of the image */
File pieChart3D3 = new File("C:/Users/Prashant/Documents/NetBeansProjects/WebApplication4/web/piecharts/pie3D3.jpeg");
ChartUtilities.saveChartAsJPEG(pieChart3D3, chart3, width3, height3);
DefaultPieDataset dataset4 = new DefaultPieDataset();
dataset4.setValue("N+ = " + Math.round(temp[4]), (double) (temp[4]));
dataset4.setValue("N- = " + Math.round(100 - temp[4]), (100 - (double) (temp[4])));
JFreeChart chart4 = ChartFactory.createPieChart3D(
"Neuroticism", // chart title
dataset4, // data
true, // include legend
true,
false);
final PiePlot3D plot4 = (PiePlot3D) chart4.getPlot();
plot4.setStartAngle(270);
plot4.setForegroundAlpha(0.60f);
plot4.setInteriorGap(0.02);
int width4 = 640; /* Width of the image */
int height4 = 480; /* Height of the image */
File pieChart3D4 = new File("C:/Users/Prashant/Documents/NetBeansProjects/WebApplication4/web/piecharts/pie3D4.jpeg");
ChartUtilities.saveChartAsJPEG(pieChart3D4, chart4, width4, height4);
music.selectsongs(temp);
%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Your Personality</title>
<link rel="stylesheet" type="text/css" href="newcss2.css">
</head>
<body>
<h1>Your Personality</h1>
<table>
<thead>
<tr>
<th> Your OCEAN Traits Values</th>
</tr>
</thead>
<tbody>
<tr>
<td class="t1" align="left">
<img src="piecharts/pie3D.jpeg" width="342px">
</td>
<td class="t1" align="center">
<img src="piecharts/pie3D1.jpeg" width="342px">
</td>
<td class="t1" align="right">
<img src="piecharts/pie3D2.jpeg" width="342px">
</td>
</tr>
<tr>
<td class="t1" align="left">
<img src="piecharts/pie3D3.jpeg" width="342px">
</td>
<td class="t1" align="center">
<img src="piecharts/pie3D4.jpeg" width="342px">
</td>
<td align="middle" align="center">
<form name="ocean" action="page3.jsp" method="POST">
<input type="submit" width="100" height="50" name="Next2" value="Next" />
</form>
</td>
</tr>
</tbody>
</table>
</body>
</html>