jfreechart 的通常配置顯示

 1 package kite.struts2.action;  2 
 3 
 4 import java.awt.Font;  5 
 6 import javax.annotation.Resource;  7 
 8 import kite.domain.Question;  9 import kite.domain.statistics.OptionStatisticsModel;  10 import kite.domain.statistics.QuestionStatisticsModel;  11 import kite.service.StatisticsService;  12 
 13 import org.jfree.chart.ChartFactory;  14 import org.jfree.chart.JFreeChart;  15 import org.jfree.chart.plot.PiePlot;  16 import org.jfree.chart.plot.PlotOrientation;  17 import org.jfree.data.category.DefaultCategoryDataset;  18 import org.jfree.data.general.DefaultPieDataset;  19 import org.jfree.util.Rotation;  20 import org.springframework.context.annotation.Scope;  21 import org.springframework.stereotype.Controller;  22 
 23 
 24 /**
 25  * 針對非矩陣式題型的設計,可有餅圖 柱狀圖 折線圖等  26  */
 27 @Controller("chartOutputAction")  28 @Scope("prototype")  29 public class ChartOutputAction extends BaseAction<Question> {  30     private static final long serialVersionUID = -9021947290801678287L;  31     /* 平面餅圖 */
 32     private static final int CHARTTYPE_PIE_2D = 0;  33     /* 立體餅圖 */
 34     private static final int CHARTTYPE_PIE_3D = 1;  35     /* 水平平面柱狀圖 */
 36     private static final int CHARTTYPE_BAR_2D_H = 2;  37     /* 豎直平面柱狀圖 */
 38     private static final int CHARTTYPE_BAR_2D_V = 3;  39     /* 水平立體柱狀圖 */
 40     private static final int CHARTTYPE_BAR_3D_H = 4;  41     /* 豎直立體柱狀圖 */
 42     private static final int CHARTTYPE_BAR_3D_V = 5;  43     /* 平面折線圖 */
 44     private static final int CHARTTYPE_LINE_2D = 6;  45     /* 立體折線圖 */
 46     private static final int CHARTTYPE_LINE_3D = 7;  47 
 48     // 圖表類型
 49     private int chartType;  50     // 對哪一個問題進行統計
 51     private Integer qid;  52 
 53     // 注入統計服務
 54  @Resource  55     private StatisticsService ss;  56 
 57     /**
 58  * 生成圖表並輸出到瀏覽器  59      */
 60     public String execute() {  61         return SUCCESS;  62  }  63 
 64     @SuppressWarnings("deprecation")  65     public JFreeChart getChart() {  66         JFreeChart chart = null ;  67         try {  68             Font font = new Font("宋體", 0, 20);// 字體
 69             QuestionStatisticsModel qsm = ss.statistics(qid);  70             DefaultPieDataset pieds = null;// 餅圖的數據集
 71             DefaultCategoryDataset cateds = null;// 種類數據集  72             //構造數據集
 73             if(chartType < 2){  74                 pieds = new DefaultPieDataset();  75                 for (OptionStatisticsModel om : qsm.getOsms()) {  76  pieds.setValue(om.getOptionLabel(), om.getCount());  77  }  78  }  79             else{  80                 cateds = new DefaultCategoryDataset();  81                 for (OptionStatisticsModel osm : qsm.getOsms()) {  82                     cateds.addValue(osm.getCount(), osm.getOptionLabel(), "");  83  }  84  }  85             
 86             // 判斷要求的圖形
 87             switch (chartType) {  88                 case CHARTTYPE_PIE_2D:// 平面餅圖
 89                     chart = ChartFactory.createPieChart(qsm.getQuestion().getTitle(), pieds, true, false, false);  90                     break ;  91                 case CHARTTYPE_PIE_3D:// 立體餅圖
 92                     chart = ChartFactory.createPieChart3D(qsm.getQuestion().getTitle(), pieds, true, true, true);  93                     //設置前景色透明度
 94                     chart.getPlot().setForegroundAlpha(0.6f);  95                     break ;  96                 case CHARTTYPE_BAR_2D_H:// 平面條形圖
 97                     chart = ChartFactory.createBarChart(qsm.getQuestion().getTitle(), "", "", cateds,  98                             PlotOrientation.HORIZONTAL, true, true, true);  99                     break ; 100                 case CHARTTYPE_BAR_2D_V:// 平面條形圖
101                     chart = ChartFactory.createBarChart(qsm.getQuestion().getTitle(), "", "", cateds, 102                             PlotOrientation.VERTICAL, true, true, true); 103                 case CHARTTYPE_BAR_3D_H:// 平面條形圖
104                     chart = ChartFactory.createBarChart3D(qsm.getQuestion().getTitle(), "", "", cateds, 105                             PlotOrientation.HORIZONTAL, true, true, true); 106                 case CHARTTYPE_BAR_3D_V:// 平面條形圖
107                     chart = ChartFactory.createBarChart3D(qsm.getQuestion().getTitle(), "", "", cateds, 108                             PlotOrientation.VERTICAL, true, true, true); 109                     break ; 110                 // 111                 case CHARTTYPE_LINE_2D:// 平面條形圖
112                     chart = ChartFactory.createLineChart(qsm.getQuestion().getTitle(), "", "", cateds, 113                             PlotOrientation.VERTICAL, true, true, true); 114                     break ; 115                 case CHARTTYPE_LINE_3D:// 平面條形圖
116                     chart = ChartFactory.createLineChart3D(qsm.getQuestion().getTitle(), "", "", cateds, 117                             PlotOrientation.HORIZONTAL, true, true, true); 118                     break ; 119  } 120             //設置標題和提示條中文
121  chart.getTitle().setFont(font); 122  chart.getLegend().setItemFont(font); 123             //chart.setBackgroundImageAlpha(0.2f); 124         
125             //設置餅圖特效
126             if(chart.getPlot() instanceof PiePlot){ 127                 PiePlot pieplot = (PiePlot) chart.getPlot(); 128  pieplot.setLabelFont(font); 129                 pieplot.setExplodePercent(0, 0.1); 130                 pieplot.setStartAngle(-15); 131  pieplot.setDirection(Rotation.CLOCKWISE); 132                 pieplot.setNoDataMessage("No data to display"); 133                 //pieplot.setForegroundAlpha(0.5f); 134                 //pieplot.setBackgroundImageAlpha(0.3f);
135  } 136             //設置非餅圖效果
137             else{ 138  chart.getCategoryPlot().getRangeAxis().setLabelFont(font); 139  chart.getCategoryPlot().getRangeAxis().setTickLabelFont(font); 140  chart.getCategoryPlot().getDomainAxis().setLabelFont(font); 141  chart.getCategoryPlot().getDomainAxis().setTickLabelFont(font); 142  } 143         } catch (Exception e) { 144  e.printStackTrace(); 145  } 146         return chart ; 147  } 148 
149     public int getChartType() { 150         return chartType; 151  } 152 
153     public void setChartType(int chartType) { 154         this.chartType = chartType; 155  } 156 
157     public Integer getQid() { 158         return qid; 159  } 160 
161     public void setQid(Integer qid) { 162         this.qid = qid; 163  } 164 }