jfreechart的封装用例

package chart.abs; import java.awt.Color; import java.awt.Font; import java.awt.RenderingHints; import java.io.IOException; import java.util.Map; import javax.servlet.http.HttpServletRequest; import org.jfree.chart.ChartFactory; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.AxisLocation; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.labels.*; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer3D; import org.jfree.chart.servlet.ServletUtilities; import org.jfree.chart.title.TextTitle; import org.jfree.data.category.CategoryDataset; import org.jfree.data.general.DatasetUtilities; import org.jfree.ui.TextAnchor; public class BarBase { private String title; private int width; private int higth; private String xString; private String yString; private double maximumBarWidth; private double minimumBarWidth; public String getXString() { return xString; } public void setXString(String string) { xString = string; } public String getYString() { return yString; } public void setYString(String string) { yString = string; } public BarBase() { maximumBarWidth = 0.080000000000000002D; minimumBarWidth = 0.02D; width = 500; higth = 300; } public BarBase(String title) { maximumBarWidth = 0.080000000000000002D; minimumBarWidth = 0.02D; this.title = title; } public BarBase(int width, int higth) { maximumBarWidth = 0.080000000000000002D; minimumBarWidth = 0.02D; this.width = width; this.higth = higth; } public BarBase(String title, int width, int higth) { maximumBarWidth = 0.080000000000000002D; minimumBarWidth = 0.02D; this.title = title; this.width = width; this.higth = higth; } protected CategoryDataset getCategoryDataset(String rowKeys[], String columnKeys[], double data[][]) { CategoryDataset dataset = DatasetUtilities.createCategoryDataset(rowKeys, columnKeys, data); return dataset; } protected CategoryDataset getCategoryDataset(Map map) { return null; } public String getDefaultBar(String title, String xString, String yString, double data[][], String rowKeys[], String columnKeys[], HttpServletRequest request) { CategoryDataset dataset = getCategoryDataset(rowKeys, columnKeys, data); JFreeChart chart = ChartFactory.createBarChart3D(title, xString, yString, dataset, PlotOrientation.VERTICAL, true, true, false); CategoryPlot plot = chart.getCategoryPlot(); CategoryAxis domainAxis =(CategoryAxis) plot.getDomainAxis(); ValueAxis rAxis = plot.getRangeAxis(); /*----------设置消除字体的锯齿渲染（解决中文问题）--------------*/ chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF); /*----------设置标题字体--------------------------*/ TextTitle textTitle = chart.getTitle(); textTitle.setFont(new Font("黑体", Font.PLAIN, 20)); /*------设置X轴坐标上的文字-----------*/ domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12)); /*------设置X轴的标题文字------------*/ domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 15)); /*------设置Y轴坐标上的文字-----------*/ rAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12)); /*------设置Y轴的标题文字------------*/ rAxis.setLabelFont(new Font("宋体", Font.PLAIN, 15)); /*---------设置横坐标轴含义的字体---------*/ chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12)); plot.setBackgroundPaint(Color.WHITE); plot.setDomainGridlinePaint(Color.PINK); plot.setRangeGridlinePaint(Color.PINK); BarRenderer3D renderer = new BarRenderer3D(); renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator()); renderer.setBaseItemLabelsVisible(true); renderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_LEFT)); renderer.setItemLabelAnchorOffset(10D); renderer.setMaximumBarWidth(getMaximumBarWidth()); renderer.setMinimumBarLength(getMinimumBarWidth()); plot.setRenderer(renderer); plot.setDomainAxisLocation(AxisLocation.TOP_OR_RIGHT); plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_RIGHT); String filename = ""; try { filename = ServletUtilities.saveChartAsPNG(chart, getWidth(), getHigth(), null, request.getSession()); } catch (IOException e) { e.printStackTrace(); } return filename; } public String getDefaultBar(double data[][], String rowKeys[], String columnKeys[], HttpServletRequest request) { CategoryDataset dataset = getCategoryDataset(rowKeys, columnKeys, data); JFreeChart chart = ChartFactory.createBarChart3D(title, xString, yString, dataset, PlotOrientation.VERTICAL, true, true, false); CategoryPlot plot = chart.getCategoryPlot(); CategoryAxis domainAxis =(CategoryAxis) plot.getDomainAxis(); ValueAxis rAxis = plot.getRangeAxis(); /*----------设置消除字体的锯齿渲染（解决中文问题）--------------*/ chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF); /*----------设置标题字体--------------------------*/ TextTitle textTitle = chart.getTitle(); textTitle.setFont(new Font("黑体", Font.PLAIN, 20)); /*------设置X轴坐标上的文字-----------*/ domainAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12)); /*------设置X轴的标题文字------------*/ domainAxis.setLabelFont(new Font("宋体", Font.PLAIN, 15)); /*------设置Y轴坐标上的文字-----------*/ rAxis.setTickLabelFont(new Font("sans-serif", Font.PLAIN, 12)); /*------设置Y轴的标题文字------------*/ rAxis.setLabelFont(new Font("宋体", Font.PLAIN, 15)); /*---------设置横坐标轴含义的字体---------*/ chart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 12)); plot.setBackgroundPaint(Color.WHITE); plot.setDomainGridlinePaint(Color.PINK); plot.setRangeGridlinePaint(Color.PINK); BarRenderer3D renderer = new BarRenderer3D(); renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator()); renderer.setBaseItemLabelsVisible(true); renderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_LEFT)); renderer.setItemLabelAnchorOffset(10D); renderer.setMaximumBarWidth(getMaximumBarWidth()); renderer.setMinimumBarLength(getMinimumBarWidth()); plot.setRenderer(renderer); plot.setDomainAxisLocation(AxisLocation.TOP_OR_RIGHT); plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_RIGHT); String filename = ""; try { filename = ServletUtilities.saveChartAsPNG(chart, getWidth(), getHigth(), null, request.getSession()); } catch (IOException e) { e.printStackTrace(); } return filename; } public String getDefaultBar2X(double data[][], String rowKeys[], HttpServletRequest request) { String columnKeys[] = { "" }; CategoryDataset dataset = getCategoryDataset(rowKeys, columnKeys, data); JFreeChart chart = ChartFactory.createBarChart3D(title, xString, yString, dataset, PlotOrientation.VERTICAL, true, true, false); CategoryPlot plot = chart.getCategoryPlot(); CategoryAxis domainAxis =(CategoryAxis) plot.getDomainAxis(); ValueAxis rAxis = plot.getRangeAxis(); /*----------设置消除字体的锯齿渲染（解决中文问题）--------------*/ chart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_OFF); /*----------设置标题字体--------------------------*/ TextTitle textTitle = chart.getTitle(); textTitle.setFont(new Font("黑体", F