JFreeChat 中文乱码、汉字乱码的解决方案

原帖：http://www.java2000.net/p14760

 

 

出现乱码的运行效果 


原始程序如下

package net.java2000.jfreechat.demo.bar; import java.awt.Color; import java.awt.Dimension; import java.awt.Font; import java.awt.GradientPaint; import javax.swing.JPanel; 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.axis.NumberAxis; import org.jfree.chart.labels.StandardCategorySeriesLabelGenerator; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; public class BarChartDemo1 extends ApplicationFrame { public BarChartDemo1(String s) { super(s); JPanel jpanel = createDemoPanel(); jpanel.setPreferredSize(new Dimension(500, 270)); setContentPane(jpanel); } private static CategoryDataset createDataset() { String s = "每日PV"; String s1 = "每日IP数"; String s2 = "注册用户数"; String s3 = "A网站"; String s4 = "B网站"; String s5 = "C网站"; String s6 = "D网站"; String s7 = "E网站"; DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset(); defaultcategorydataset.addValue(1.0D, s, s3); defaultcategorydataset.addValue(4D, s, s4); defaultcategorydataset.addValue(3D, s, s5); defaultcategorydataset.addValue(5D, s, s6); defaultcategorydataset.addValue(5D, s, s7); defaultcategorydataset.addValue(5D, s1, s3); defaultcategorydataset.addValue(7D, s1, s4); defaultcategorydataset.addValue(6D, s1, s5); defaultcategorydataset.addValue(8D, s1, s6); defaultcategorydataset.addValue(4D, s1, s7); defaultcategorydataset.addValue(4D, s2, s3); defaultcategorydataset.addValue(3D, s2, s4); defaultcategorydataset.addValue(2D, s2, s5); defaultcategorydataset.addValue(3D, s2, s6); defaultcategorydataset.addValue(6D, s2, s7); return defaultcategorydataset; } private static JFreeChart createChart(CategoryDataset categorydataset) { JFreeChart jfreechart = ChartFactory.createBarChart("Bar Chart Demo 1", "网站", "数值", categorydataset, PlotOrientation.VERTICAL, true, true, false); CategoryPlot categoryplot = (CategoryPlot) jfreechart.getPlot(); categoryplot.setDomainGridlinesVisible(true); categoryplot.setRangeCrosshairVisible(true); categoryplot.setRangeCrosshairPaint(Color.blue); NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis(); numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer(); barrenderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12)); barrenderer.setSeriesItemLabelFont(1, new Font("宋体", Font.PLAIN, 12)); barrenderer.setDrawBarOutline(false); GradientPaint gradientpaint = new GradientPaint(0.0F, 0.0F, Color.blue, 0.0F, 0.0F, new Color( 0, 0, 64)); GradientPaint gradientpaint1 = new GradientPaint(0.0F, 0.0F, Color.green, 0.0F, 0.0F, new Color(0, 64, 0)); GradientPaint gradientpaint2 = new GradientPaint(0.0F, 0.0F, Color.red, 0.0F, 0.0F, new Color( 64, 0, 0)); barrenderer.setSeriesPaint(0, gradientpaint); barrenderer.setSeriesPaint(1, gradientpaint1); barrenderer.setSeriesPaint(2, gradientpaint2); barrenderer.setLegendItemToolTipGenerator(new StandardCategorySeriesLabelGenerator( "Tooltip: {0}")); CategoryAxis categoryaxis = categoryplot.getDomainAxis(); categoryaxis.setCategoryLabelPositions(CategoryLabelPositions .createUpRotationLabelPositions(0.52359877559829882D)); return jfreechart; } public static JPanel createDemoPanel() { JFreeChart jfreechart = createChart(createDataset()); return new ChartPanel(jfreechart); } public static void main(String args[]) { BarChartDemo1 barchartdemo1 = new BarChartDemo1("黑体JFreeChart: BarChartDemo1.java"); barchartdemo1.pack(); RefineryUtilities.centerFrameOnScreen(barchartdemo1); barchartdemo1.setVisible(true); } }

增加如下的代码，解决汉字乱码问题

CategoryAxis domainAxis = categoryplot.getDomainAxis(); /*------设置X轴坐标上的文字-----------*/ domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11)); /*------设置X轴的标题文字------------*/ domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12)); /*------设置Y轴坐标上的文字-----------*/ numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12)); /*------设置Y轴的标题文字------------*/ numberaxis.setLabelFont(new Font("黑体", Font.PLAIN, 12)); /*------这句代码解决了底部汉字乱码的问题-----------*/ jfreechart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12));

运行效果如下

完整代码

package net.java2000.jfreechat.demo.bar; import java.awt.Color; import java.awt.Dimension; import java.awt.Font; import java.awt.GradientPaint; import javax.swing.JPanel; 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.axis.NumberAxis; import org.jfree.chart.labels.StandardCategorySeriesLabelGenerator; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; public class BarChartDemo1 extends ApplicationFrame { public BarChartDemo1(String s) { super(s); JPanel jpanel = createDemoPanel(); jpanel.setPreferredSize(new Dimension(500, 270)); setContentPane(jpanel); } private static CategoryDataset createDataset() { String s = "每日PV"; String s1 = "每日IP数"; String s2 = "注册用户数"; String s3 = "A网站"; String s4 = "B网站"; String s5 = "C网站"; String s6 = "D网站"; String s7 = "E网站"; DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset(); defaultcategorydataset.addValue(1.0D, s, s3); defaultcategorydataset.addValue(4D, s, s4); defaultcategorydataset.addValue(3D, s, s5); defaultcategorydataset.addValue(5D, s, s6); defaultcategorydataset.addValue(5D, s, s7); defaultcategorydataset.addValue(5D, s1, s3); defaultcategorydataset.addValue(7D, s1, s4); defaultcategorydataset.addValue(6D, s1, s5); defaultcategorydataset.addValue(8D, s1, s6); defaultcategorydataset.addValue(4D, s1, s7); defaultcategorydataset.addValue(4D, s2, s3); defaultcategorydataset.addValue(3D, s2, s4); defaultcategorydataset.addValue(2D, s2, s5); defaultcategorydataset.addValue(3D, s2, s6); defaultcategorydataset.addValue(6D, s2, s7); return defaultcategorydataset; } private static JFreeChart createChart(CategoryDataset categorydataset) { JFreeChart jfreechart = ChartFactory.createBarChart("Bar Chart Demo 1", "网站", "数值", categorydataset, PlotOrientation.VERTICAL, true, true, false); CategoryPlot categoryplot = (CategoryPlot) jfreechart.getPlot(); categoryplot.setDomainGridlinesVisible(true); categoryplot.setRangeCrosshairVisible(true); categoryplot.setRangeCrosshairPaint(Color.blue); NumberAxis numberaxis = (NumberAxis) categoryplot.getRangeAxis(); numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); BarRenderer barrenderer = (BarRenderer) categoryplot.getRenderer(); barrenderer.setBaseItemLabelFont(new Font("宋体", Font.PLAIN, 12)); barrenderer.setSeriesItemLabelFont(1, new Font("宋体", Font.PLAIN, 12)); CategoryAxis domainAxis = categoryplot.getDomainAxis(); /*------设置X轴坐标上的文字-----------*/ domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 11)); /*------设置X轴的标题文字------------*/ domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 12)); /*------设置Y轴坐标上的文字-----------*/ numberaxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12)); /*------设置Y轴的标题文字------------*/ numberaxis.setLabelFont(new Font("黑体", Font.PLAIN, 12)); /*------这句代码解决了底部汉字乱码的问题-----------*/ jfreechart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12)); barrenderer.setDrawBarOutline(false); GradientPaint gradientpaint = new GradientPaint(0.0F, 0.0F, Color.blue, 0.0F, 0.0F, new Color( 0, 0, 64)); GradientPaint gradientpaint1 = new GradientPaint(0.0F, 0.0F, Color.green, 0.0F, 0.0F, new Color(0, 64, 0)); GradientPaint gradientpaint2 = new GradientPaint(0.0F, 0.0F, Color.red, 0.0F, 0.0F, new Color( 64, 0, 0)); barrenderer.setSeriesPaint(0, gradientpaint); barrenderer.setSeriesPaint(1, gradientpaint1); barrenderer.setSeriesPaint(2, gradientpaint2); barrenderer.setLegendItemToolTipGenerator(new StandardCategorySeriesLabelGenerator( "Tooltip: {0}")); CategoryAxis categoryaxis = categoryplot.getDomainAxis(); categoryaxis.setCategoryLabelPositions(CategoryLabelPositions .createUpRotationLabelPositions(0.52359877559829882D)); return jfreechart; } public static JPanel createDemoPanel() { JFreeChart jfreechart = createChart(createDataset()); return new ChartPanel(jfreechart); } public static void main(String args[]) { BarChartDemo1 barchartdemo1 = new BarChartDemo1("黑体JFreeChart: BarChartDemo1.java"); barchartdemo1.pack(); RefineryUtilities.centerFrameOnScreen(barchartdemo1); barchartdemo1.setVisible(true); } }