学步园

现在贴出我封装了的jfreechar工具类，可以根据自己的要求去扩展和封装，大概封装了一下：

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.GradientPaint;
import java.awt.RenderingHints;
import java.io.FileOutputStream;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
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.axis.ValueAxis;
import org.jfree.chart.labels.ItemLabelAnchor;
import org.jfree.chart.labels.ItemLabelPosition;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.PolarPlot;
import org.jfree.chart.renderer.DefaultPolarItemRenderer;
import org.jfree.chart.renderer.category.BarRenderer3D;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.chart.servlet.ServletUtilities;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.data.xy.XYDataset;
import org.jfree.ui.TextAnchor;
import org.springframework.stereotype.Component;

/**
 * 通用的生成柱状图的方法
 * @author th
 *
 */
@Component
public class CommonStatisticsCreateImagesDao extends ServletUtilities{
	
	/**
	 * 生成多柱状图（柱状图）
	 * @param imagePath 生成后的图片路径
	 * @param imageName 生成后的图片名称
	 * @param categoryDataset  生成图片的数据结构
	 * @param yName  Y坐标的展示名称
	 * @param width  图片宽度
	 * @param height  图片高度
	 * @return
	 */
	public boolean creatPic(String imagePath,String imageName,String yName,CategoryDataset categoryDataset, int width,int height){
	       //设置默认宽度和高度
		    if(width == 0)
		    	width = 700;
		    if(height == 0)
		       height = 450;
		    // 图表标题 
		    // 目录轴的显示标签 x
			// 数值轴的显示标签 y
			// 数据集 
			// 图表方向：水平、垂直 
			// 是否显示图例(对于简单的柱状图必须是false) 
			// 是否生成工具 
			// 是否生成URL链接  createBarChart
	        JFreeChart jfreechart = ChartFactory.createBarChart3D(imageName, "", yName, categoryDataset, PlotOrientation.VERTICAL, true, true, false);
	        // 设置图标题的字体重新设置title new Font("宋体", Font.PLAIN, 10)
	    	Font font = new Font("隶书", Font.BOLD, 25); 
	    	TextTitle title = new TextTitle(imageName); 
	    	title.setFont(font); 
	    	jfreechart.setTitle(title); 
	    	
	    	Font labelFont = new Font("黑体", Font.BOLD, 12); 
	    	/* 
	    	* VALUE_TEXT_ANTIALIAS_OFF表示将文字的抗锯齿关闭, 
	    	* 使用的关闭抗锯齿后，字体尽量选择12到14号的宋体字,这样文字最清晰好看 
	    	*/ 
	    	jfreechart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF); 
	    	jfreechart.setTextAntiAlias(true); 
	    	
	    	jfreechart.setBackgroundPaint(Color.white); 
	    	//显示图例
	    	jfreechart.getLegend().setItemFont(new Font("黑体", Font.BOLD, 15)); 
	    	// create plot 
	    	CategoryPlot plot = jfreechart.getCategoryPlot(); 
	    	// 设置横虚线可见 
	    	plot.setRangeGridlinesVisible(true); 
	    	// 虚线色彩 
	    	plot.setRangeGridlinePaint(Color.gray); 

	    	// 数据轴精度 
	    	NumberAxis vn = (NumberAxis) plot.getRangeAxis(); 
	    	vn.setAutoRangeIncludesZero(true); 
	    	DecimalFormat df = new DecimalFormat("#0.00"); 
	    	vn.setNumberFormatOverride(df); // 数据轴数据标签的显示格式 
	    	// x轴设置 
	    	CategoryAxis domainAxis = plot.getDomainAxis(); 
	    	domainAxis.setLabelFont(labelFont);// 轴标题 
	    	domainAxis.setTickLabelFont(labelFont);// 轴数值 
	    	// Lable（Math.PI/3.0）度倾斜 
	    	domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI/3.0)); 
	    	domainAxis.setMaximumCategoryLabelWidthRatio(0.5f);// 横轴上的 Lable 是否完整显示 

	    	// 设置距离图片左端距离 
	    	domainAxis.setLowerMargin(0.1); 
	    	// 设置距离图片右端距离 
	    	domainAxis.setUpperMargin(0.1); 
	    	// 设置 columnKey 是否间隔显示 
	    	// domainAxis.setSkipCategoryLabelsToFit(true); 

	    	plot.setDomainAxis(domainAxis); 
	    	// 设置柱图背景色（注意，系统取色的时候要使用16位的模式来查看颜色编码，这样比较准确） 
	    	plot.setBackgroundPaint(new Color(255, 255, 204)); 
	    	
	    	
	    	// y轴设置 
	    	ValueAxis rangeAxis = plot.getRangeAxis(); 
	    	rangeAxis.setLabelFont(labelFont); 
	    	rangeAxis.setTickLabelFont(labelFont); 
	    	// 设置最高的一个 Item 与图片顶端的距离 
	    	rangeAxis.setUpperMargin(0.15); 
	    	// 设置最低的一个 Item 与图片底端的距离 
	    	rangeAxis.setLowerMargin(0.15); 
	    	plot.setRangeAxis(rangeAxis); 

	    	BarRenderer3D renderer = new BarRenderer3D(); 
	    	// 设置柱子宽度 
	    	renderer.setMaximumBarWidth(0.05); 
	    	// 设置柱子高度 
	    	//renderer.setMinimumBarLength(0.2); 
	    	// 设置柱子边框颜色 
	    	//renderer.setBaseOutlinePaint(Color.BLACK); 
	    	// 设置柱子边框可见 
	    	//renderer.setDrawBarOutline(true); 

	    	//设置柱的颜色 
	    	renderer.setSeriesPaint(0, new GradientPaint(0.0F, 0.0F, Color.green, 0.0F, 0.0F, new Color(0, 255, 0)));
	    	renderer.setSeriesPaint(1, new GradientPaint(0.0F, 0.0F, Color.blue, 0.0F, 0.0F, new Color(0, 0, 255)));
		    renderer.setSeriesPaint(2, new GradientPaint(0.0F, 0.0F, Color.yellow, 0.0F, 0.0F, new Color(255, 255, 0)));
		    renderer.setSeriesPaint(3, new GradientPaint(0.0F, 0.0F, Color.orange, 0.0F, 0.0F, new Color(255, 200, 0)));
		    renderer.setSeriesPaint(4, new GradientPaint(0.0F, 0.0F, Color.red, 0.0F, 0.0F, new Color(255, 0, 0)));

	    	// 设置每个地区所包含的平行柱的之间距离 
	    	//renderer.setItemMargin(0.2); 

	    	// 显示每个柱的数值，并修改该数值的字体属性 
	    	renderer.setIncludeBaseInRange(true); 
	    	renderer.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator()); 
	    	renderer.setBasePositiveItemLabelPosition(new ItemLabelPosition(ItemLabelAnchor.OUTSIDE12, TextAnchor.BASELINE_LEFT));//CENTER_RIGHT
	    	renderer.setBaseItemLabelsVisible(true); 
	    	plot.setRenderer(renderer);
	    	// 设置柱的透明度 
	    	plot.setForegroundAlpha(1.0f); 
	      
	        //生成水印类似
//	        CategoryTextAnnotation categorytextannotation = new CategoryTextAnnotation("Minimum grade to pass", "Robert", 0.70999999999999996D);
//	        categorytextannotation.setCategoryAnchor(CategoryAnchor.START);
//	        categorytextannotation.setFont(new Font("SansSerif", 0, 12));
//	        categorytextannotation.setTextAnchor(TextAnchor.BOTTOM_LEFT);
//	        categoryplot.addAnnotation(categorytextannotation);
	        
	        FileOutputStream fos_jpg = null; 
	    	try{
		    	fos_jpg = new FileOutputStream(imagePath); 
		    	ChartUtilities.writeChartAsPNG(fos_jpg,jfreechart,width,height); 
	    	}catch (Exception e) { 
	    		e.printStackTrace(); 
	    		return false; 
	    	}finally{ 
	    	try{ 
		    	fos_jpg.close(); 
		    	System.out.println("create pie-chart.柱状图创建成功！！！"); 
	    	}catch (Exception e){ 
	    		e.printStackTrace(); 
	    	  } 
	    	} 
	    	return true;
	    }

	 /**
		 * 生成（曲线图片）
		 * @param imagePath 生成后的图片路径
		 * @param imageName 生成后的图片名称
		 * @param categoryDataset  生成图片的数据结构
		 * @param yName  Y坐标的展示名称
		 * @param width  图片宽度
		 * @param height  图片高度
		 * @return
		 */
		 public boolean createLinePic(String imagePath,String imageName,String yName,CategoryDataset categoryDataset, int width,int height){
			    //设置默认宽度和高度
			    if(width == 0)
			    	width = 700;
			    if(height == 0)
			       height = 450;
			    JFreeChart jfreechart = ChartFactory.createLineChart(imageName, null, yName, categoryDataset, PlotOrientation.VERTICAL, false, true, false);
		        //jfreechart.addSubtitle(new TextTitle("Number of Classes By Release"));
		        //TextTitle texttitle = new TextTitle("Source: Java In A Nutshell (5th Edition) by David Flanagan (O'Reilly)");
		        /*texttitle.setFont(new Font("SansSerif", 0, 10));
		        texttitle.setPosition(RectangleEdge.BOTTOM);
		        texttitle.setHorizontalAlignment(HorizontalAlignment.RIGHT);
		        jfreechart.addSubtitle(texttitle);*/
		        CategoryPlot categoryplot = (CategoryPlot)jfreechart.getPlot();
		        categoryplot.setRangePannable(true);
		        categoryplot.setRangeGridlinesVisible(false);
		      
		        NumberAxis numberaxis = (NumberAxis)categoryplot.getRangeAxis();
		        numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
		        ChartUtilities.applyCurrentTheme(jfreechart);
		        LineAndShapeRenderer lineandshaperenderer = (LineAndShapeRenderer)categoryplot.getRenderer();
		        lineandshaperenderer.setBaseShapesVisible(true);
		        lineandshaperenderer.setDrawOutlines(true);
		        lineandshaperenderer.setUseFillPaint(true);
		        lineandshaperenderer.setBaseFillPaint(Color.white);
		        lineandshaperenderer.setSeriesStroke(0, new BasicStroke(3F));
		        lineandshaperenderer.setSeriesOutlineStroke(0, new BasicStroke(2.0F));
		        lineandshaperenderer.setSeriesShape(0, new java.awt.geom.Ellipse2D.Double(-5D, -5D, 10D, 10D));
		        
		        /*-------------处理乱码-------------------*/
		        Font font = new Font("隶书", Font.BOLD, 25); 
		    	TextTitle title = new TextTitle(imageName); 
		    	title.setFont(font); 
		    	jfreechart.setTitle(title); 
		    	
		    	Font labelFont = new Font("黑体", Font.BOLD, 12); 
		        
				CategoryAxis categoryAxis =  categoryplot.getDomainAxis();
				categoryAxis.setLabelFont(labelFont);
				categoryAxis.setTickLabelFont(labelFont);
				ValueAxis valueAxis =  categoryplot.getRangeAxis();
				valueAxis.setLabelFont(labelFont);
				CategoryAxis categoryAxis2 =  categoryplot.getDomainAxis();
				categoryAxis2.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(0.66666));
			    
		        FileOutputStream fos_jpg = null; 
		    	try{
			    	fos_jpg = new FileOutputStream(imagePath); 
			    	ChartUtilities.writeChartAsPNG(fos_jpg,jfreechart,width,height); 
		    	}catch (Exception e) { 
		    		e.printStackTrace(); 
		    		return false; 
		    	}finally{ 
		    	try{ 
			    	fos_jpg.close(); 
			    	System.out.println("create line-chart.曲线图创建成功！！！"); 
		    	}catch (Exception e){ 
		    		e.printStackTrace(); 
		    	  } 
		    	} 
		    	return true;
		    }
		 
		   /**
			 * 生成（饼状图片）
			 * @param imagePath 生成后的图片路径
			 * @param imageName 生成后的图片名称
			 * @param categoryDataset  生成图片的数据结构
			 * @param 
			 * @param width  图片宽度
			 * @param height  图片高度
			 * @return
			 */
			 @SuppressWarnings("deprecation")
			public boolean createPiePic(String imagePath,String imageName,PieDataset categoryDataset, int width,int height){
				    //设置默认宽度和高度
				    if(width == 0)
				    	width = 700;
				    if(height == 0)
				       height = 450;
			        
				    
				    JFreeChart jfreechart = ChartFactory.createPieChart(imageName, categoryDataset, true, true, false);
				   
				    // 设置图标题的字体重新设置title new Font("宋体", Font.PLAIN, 10)
			    	Font font = new Font("隶书", Font.BOLD, 25); 
			    	TextTitle title = new TextTitle(imageName); 
			    	title.setFont(font); 
			    	jfreechart.setTitle(title); 
			    	
			    	/* 
			    	* VALUE_TEXT_ANTIALIAS_OFF表示将文字的抗锯齿关闭, 
			    	* 使用的关闭抗锯齿后，字体尽量选择12到14号的宋体字,这样文字最清晰好看 
			    	*/ 
			    	jfreechart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF); 
			    	jfreechart.setTextAntiAlias(true); 
			    	
			    	jfreechart.setBackgroundPaint(Color.white); 
			    	jfreechart.getLegend().setItemFont(new Font("宋体", Font.PLAIN, 15)); 
			    	
			    	title.setToolTipText("A title tooltip!");
			    	
			        PiePlot pieplot = (PiePlot)jfreechart.getPlot();
			        pieplot.setLabelFont(new Font("黑体",Font.PLAIN,15));
			        pieplot.setNoDataMessage("No data available");
			        
			        pieplot.setCircular(false);
			        pieplot.setLabelGap(0.02D);
			        jfreechart.getLegend().setItemFont(new Font("黑体",Font.BOLD,15));
			        pieplot.setLabelGenerator(new StandardPieSectionLabelGenerator( 
			        		"{2}", NumberFormat.getNumberInstance(), 
			        		new DecimalFormat("0.00%"))); 
			        		// 图例显示百分比:自定义方式， {0} 表示选项， {1} 表示数值， {2} 表示所占比例 
			       /* pieplot.setLegendLabelGenerator(new StandardPieSectionLabelGenerator( 
			    	"{0}={1}({2})")); */
			        
			        //饼状图的颜色定义
			        pieplot.setSectionPaint(0, new GradientPaint(0.0F, 0.0F, Color.green, 0.0F, 0.0F, new Color(0, 255, 0)));
			    	pieplot.setSectionPaint(1, new GradientPaint(0.0F, 0.0F, Color.blue, 0.0F, 0.0F, new Color(0, 0, 255)));
			    	pieplot.setSectionPaint(2, new GradientPaint(0.0F, 0.0F, Color.yellow, 0.0F, 0.0F, new Color(255, 255, 0)));
			    	pieplot.setSectionPaint(3, new GradientPaint(0.0F, 0.0F, Color.orange, 0.0F, 0.0F, new Color(255, 200, 0)));
			    	pieplot.setSectionPaint(4, new GradientPaint(0.0F, 0.0F, Color.red, 0.0F, 0.0F, new Color(255, 0, 0)));
			        
			        
			        
			        /*-------------处理乱码-------------------*/
			        
			        FileOutputStream fos_jpg = null; 
			    	try{
				    	fos_jpg = new FileOutputStream(imagePath); 
				    	ChartUtilities.writeChartAsPNG(fos_jpg,jfreechart,width,height); 
			    	}catch (Exception e) { 
			    		e.printStackTrace(); 
			    		return false; 
			    	}finally{ 
			    	try{ 
				    	fos_jpg.close(); 
				    	System.out.println("create pie-chart.饼状图创建成功！！！"); 
			    	}catch (Exception e){ 
			    		e.printStackTrace(); 
			    	  } 
			    	} 
			    	return true;
			    }
			 
			 
			 
			 
			 /**
				 * 生成（雷达图）
				 * @param imagePath 生成后的图片路径
				 * @param imageName 生成后的图片名称
				 * @param xydataset  生成图片的数据结构
				 * @param width  图片宽度
				 * @param height  图片高度
				 * @param pplotArr  PolarPlot数组图例名字（生成图例的 可有可无）
				 * @return
				 */ 
			 public boolean createPolarChart(String imagePath,String imageName,XYDataset xydataset, int width,int height,String[] pplotArr){
		  
				    //设置默认宽度和高度
				    if(width == 0)
				    	width = 700;
				    if(height == 0)
				       height = 450;
				    
			        JFreeChart jfreechart = ChartFactory.createPolarChart(imageName, xydataset, true, false, false);
			        PolarPlot polarplot = (PolarPlot)jfreechart.getPlot();
//			        if(pplotArr != null && pplotArr.length > 0){
//			        	for (int i = 0; i < pplotArr.length; i++) {
//			        		polarplot.addCornerTextItem(pplotArr[i]);
//						}
//			        }
			        polarplot.setAngleGridlinePaint(Color.white);
			        polarplot.setRadiusGridlinePaint(Color.white);
			        NumberAxis numberaxis = (NumberAxis)polarplot.getAxis();
			        numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
			        ChartUtilities.applyCurrentTheme(jfreechart);
			       
			        //显示网格度数
			        polarplot.setAngleGridlinesVisible(false);
			        
			        // 设置雷达颜色
			        GradientPaint gradientpaint3 = new GradientPaint(0.0F, 0.0F,
			          Color.black, 0.0F, 0.0F, Color.black);
			        polarplot.setRadiusGridlinePaint(gradientpaint3);//
		
			        // 两个四边形颜色
			        GradientPaint gradientpaint1 = new GradientPaint(0.0F, 0.0F, Color.red,
			          0.0F, 0.0F, Color.red); //
			        GradientPaint gradientpaint2 = new GradientPaint(0.0F, 0.0F,
			          Color.blue, 0.0F, 0.0F, Color.blue); //
			        // 设置两个四边形颜色
			        DefaultPolarItemRenderer renderer = new DefaultPolarItemRenderer();
			        renderer.setSeriesPaint(0, gradientpaint1);
			        renderer.setSeriesPaint(1, gradientpaint2);
			        renderer.setItemLabelFont(new Font("黑体", Font.BOLD, 15));
			        renderer.setItemLabelsVisible(true);

			        polarplot.setRenderer(renderer);
		
			        numberaxis.setAutoRange(true);
			        //numberaxis.setVisible(false);
			        //numberaxis.setTickUnit(new NumberTickUnit(2));// 设置雷达网格数量
			        
			        // 设置说明的字体
			        jfreechart.getTitle().setFont(new Font("隶书", Font.BOLD, 25));
			        
			    	/* 
			    	* VALUE_TEXT_ANTIALIAS_OFF表示将文字的抗锯齿关闭, 
			    	* 使用的关闭抗锯齿后，字体尽量选择12到14号的宋体字,这样文字最清晰好看 
			    	*/ 
			    	jfreechart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF); 
			    	jfreechart.setTextAntiAlias(true); 
			    	
			    	jfreechart.setBackgroundPaint(Color.white); 
			    	//显示图例
			    	jfreechart.getLegend().setItemFont(new Font("黑体", Font.BOLD, 15)); 
			        
			        
			        FileOutputStream fos_jpg = null; 
			        
			    	try{
				    	fos_jpg = new FileOutputStream(imagePath); 
				    	ChartUtilities.writeChartAsPNG(fos_jpg,jfreechart,width,height); 
			    	}catch (Exception e) { 
			    		e.printStackTrace(); 
			    		return false; 
			    	}finally{ 
			    	try{ 
				    	fos_jpg.close(); 
				    	System.out.println("create pie-chart.雷达图创建成功！！！"); 
			    	}catch (Exception e){ 
			    		e.printStackTrace(); 
			    	  } 
			    	} 
			    	return true;
			    }
	
}

（未完待续）