piechartdemo7.java

能使报表生成图像的大全代码

// Decompiled by Jad v1.5.8g. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://www.kpdus.com/jad.html
// Decompiler options: packimports(3) 

package demo.servlet;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.chart.servlet.ServletUtilities;
import org.jfree.data.general.DefaultPieDataset;

public class PieChartDemo7 extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		System.out.println("-----------------PieChartDemo7-------------------");
		DefaultPieDataset defaultpiedataset = new DefaultPieDataset();
		defaultpiedataset.setValue("Section 1", 23.300000000000001D);
		defaultpiedataset.setValue("Section 2", 56.5D);
		defaultpiedataset.setValue("Section 3", 43.299999999999997D);
		defaultpiedataset.setValue("Section 4", 11.1D);
		JFreeChart jfreechart0 = ChartFactory.createPieChart("Chart 1",
				defaultpiedataset, false, false, false);

		JFreeChart jfreechart1 = ChartFactory.createPieChart("Chart 2",
				defaultpiedataset, false, false, false);
		PiePlot pieplot = (PiePlot) jfreechart1.getPlot();
		pieplot.setCircular(false);

		JFreeChart jfreechart2 = ChartFactory.createPieChart3D("Chart 3",
				defaultpiedataset, false, false, false);

		PiePlot3D pieplot3d = (PiePlot3D) jfreechart2.getPlot();
		pieplot3d.setForegroundAlpha(0.6F);
		pieplot3d.setCircular(true);

		JFreeChart jfreechart3 = ChartFactory.createPieChart3D("Chart 4",
				defaultpiedataset, false, false, false);

		PiePlot3D pieplot3d1 = (PiePlot3D) jfreechart3.getPlot();
		pieplot3d1.setForegroundAlpha(0.6F);

		HttpSession session = request.getSession();

		String filename0 = ServletUtilities.saveChartAsPNG(jfreechart0, 900,
				350, null, session);
		String filename1 = ServletUtilities.saveChartAsPNG(jfreechart1, 900,
				350, null, session);
		String filename2 = ServletUtilities.saveChartAsPNG(jfreechart2, 900,
				350, null, session);
		String filename3 = ServletUtilities.saveChartAsPNG(jfreechart3, 900,
				350, null, session);

		String graphURL0 = request.getContextPath()
				+ "/servlet/DisplayChart?filename=" + filename0;
		String graphURL1 = request.getContextPath()
				+ "/servlet/DisplayChart?filename=" + filename1;
		String graphURL2 = request.getContextPath()
				+ "/servlet/DisplayChart?filename=" + filename2;
		String graphURL3 = request.getContextPath()
				+ "/servlet/DisplayChart?filename=" + filename3;

		request.setAttribute("filename0", filename0);
		request.setAttribute("filename1", filename1);
		request.setAttribute("filename2", filename2);
		request.setAttribute("filename3", filename3);

		request.setAttribute("graphURL0", graphURL0);
		request.setAttribute("graphURL1", graphURL1);
		request.setAttribute("graphURL2", graphURL2);
		request.setAttribute("graphURL3", graphURL3);

		System.out.println(filename0 + "<-->" + graphURL0);
		this.getServletContext().getRequestDispatcher("/PieChartDemo7.jsp")
				.forward(request, response);

	}

}