第一次出现java bug

最新推荐文章于 2025-05-11 15:58:03 发布

最新推荐文章于 2025-05-11 15:58:03 发布 · 267 阅读

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#Java #jfreechart #UI #SUN #JSP

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本文记录了一个使用Java进行jfreechart图表开发过程中遇到的系统崩溃问题。在尝试将图表标题设置为中文时，程序发生了异常崩溃，并抛出了EXCEPTION_ACCESS_VIOLATION错误。通过分析错误日志和提供的代码示例，探讨了可能的原因及解决方案。

用了2年多java了.还是第一次出现直接崩溃的系统bug.

控制台输出

写道

#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x075132fe, pid=3768, tid=2532
#
# JRE version: 6.0_15-b03
# Java VM: Java HotSpot(TM) Client VM (14.1-b02 mixed mode, sharing windows-x86 )
# Problematic frame:
# C [SOGOUPY.IME+0x432fe]
#
# An error report file with more information is saved as:
# D:\Backup\�ҵ��ĵ�\NetBeansProjects\jfreechartTest\hs_err_pid3768.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

产生原因是在做jfreechart demo的时候.修改图表标题为中文的时候,点解确定.或者没修改点击退出.程序直接退出

例子代码

package jfreecharttest;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer3D;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DatasetUtilities;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class BarChart3DDemo1 extends ApplicationFrame {

    public BarChart3DDemo1(final String title) {
        super(title);
        final CategoryDataset dataset = createDataset();
        final JFreeChart chart = createChart(dataset);
        final ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
        setContentPane(chartPanel);
    }

    private CategoryDataset createDataset() {
        final double[][] data = new double[][]{{10.0, 4.0, 15.0, 14.0},
            {-5.0, -7.0, 14.0, -3.0},
            {6.0, 17.0, -12.0, 7.0},
            {7.0, 15.0, 11.0, 0.0},
            {-8.0, -6.0, 10.0, -9.0},
            {9.0, 8.0, 0.0, 6.0},
            {-10.0, 9.0, 7.0, 7.0},
            {11.0, 13.0, 9.0, 9.0},
            {-3.0, 7.0, 11.0, -10.0}};
        return DatasetUtilities.createCategoryDataset("Series ", "Category ", data);
    }

    private JFreeChart createChart(final CategoryDataset dataset) {
        final JFreeChart chart = ChartFactory.createBarChart3D(
                "3D Bar Chart Demo", // chart title
                "Category", // domain axis label
                "Value", // range axis label
                dataset, // data
                PlotOrientation.VERTICAL, // orientation
                true, // include legend
                true, // tooltips
                false // urls
                );
        final CategoryPlot plot = chart.getCategoryPlot();
        final CategoryAxis axis = plot.getDomainAxis();
        axis.setCategoryLabelPositions(
                CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 8.0));
        final BarRenderer3D renderer = (BarRenderer3D) plot.getRenderer();
        renderer.setDrawBarOutline(false);

        return chart;
    }

    public static void main(final String[] args) {
        final BarChart3DDemo1 demo = new BarChart3DDemo1("3D Bar Chart Demo 1");
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.pack();
        demo.setVisible(true);
    }
}

jfreechart是1.0.13

依赖的jar包

产生bug截图.貌似je上传的文件下载不了...图片显示不了..