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| import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.awt.Color;
import org.jfree.chart.*;
import org.jfree.chart.plot.*;
import org.jfree.data.category.*;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.chart.labels.PieSectionLabelGenerator;
import org.jfree.data.general.PieDataset;
import org.jfree.data.*;
import org.jfree.data.general.*;
import java.util.*;
public class jfr extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
DefaultPieDataset pieDataset = new DefaultPieDataset();
for (int i=0;i<table_bdd.length;i++){
pieDataset.setValue(table_bdd[i],i);
}
JFreeChart pieChart = ChartFactory.createPieChart3D("Répartition des causes de non-conformités",
pieDataset, true, true, true);
pieChart.setBackgroundPaint(Color.white);
pieChart.isBorderVisible();
PiePlot3D plot3 = (PiePlot3D) pieChart.getPlot();
plot3.setForegroundAlpha(0.7f);
plot3.setNoDataMessage("Aucune données à afficher");
plot3.setLabelLinksVisible(true);
OutputStream out = response.getOutputStream();
response.setContentType("image/png");
ChartUtilities.writeChartAsPNG(out, pieChart, 450, 280);
}
} |
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