名校毕设：基于HTML的网上商城项目源码.zip

package com.hjp.shop.controller; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Font; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.util.List; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartUtilities; import org.jfree.chart.JFreeChart; import org.jfree.chart.StandardChartTheme; import org.jfree.chart.labels.StandardPieToolTipGenerator; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PiePlot3D; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.data.general.DefaultPieDataset; import com.hjp.shop.model.Product; import com.hjp.shop.model.Salesitem; import com.jfinal.core.Controller; import com.jfinal.kit.PathKit; public class ReportController extends Controller { public void chart(){ //步骤1：创建CategoryDataset对象（准备数据） CategoryDataset dataset = createDataset(); DefaultPieDataset pieDataset = createPieDataset(); //步骤2：根据Dataset 生成JFreeChart对象，以及做相应的设置 JFreeChart freeChart = createChart(dataset); JFreeChart freeChart2 = createPieChart(pieDataset); //步骤3：将JFreeChart对象输出到文件，Servlet输出流等 String path = PathKit.getWebRootPath(); String path1 =path + "\\img\\report\\rep.png"; String path2 =path + "\\img\\report\\pie.png"; saveAsFile(freeChart, path1, 600, 400); saveAsFile(freeChart2, path2, 500, 400); render("report.html"); } //保存为文件 public static void saveAsFile(JFreeChart chart, String outputPath, int weight, int height) { FileOutputStream out = null; try { File outFile = new File(outputPath); if (!outFile.getParentFile().exists()) { outFile.getParentFile().mkdirs(); } out = new FileOutputStream(outputPath); //保存为PNG文件 ChartUtilities.writeChartAsPNG(out, chart, weight, height); //保存为JPEG文件 //ChartUtilities.writeChartAsJPEG(out, chart, 500, 400); out.flush(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { if (out != null) { try { out.close(); } catch (IOException e) { e.printStackTrace(); } } } } //根据CategoryDataset生成JFreeChart对象 public static JFreeChart createChart(CategoryDataset categoryDataset) { //创建主题样式 StandardChartTheme standardChartTheme=new StandardChartTheme("CN"); //设置标题字体 standardChartTheme.setExtraLargeFont(new Font("隶书",Font.BOLD,20)); //设置图例的字体 standardChartTheme.setRegularFont(new Font("宋书",Font.PLAIN,15)); //设置轴向的字体 standardChartTheme.setLargeFont(new Font("宋书",Font.PLAIN,15)); //应用主题样式 ChartFactory.setChartTheme(standardChartTheme); JFreeChart jfreechart = ChartFactory.createBarChart("产品销量图", //标题 "产品", //categoryAxisLabel （category轴，横轴，X轴的标签） "数量", //valueAxisLabel（value轴，纵轴，Y轴的标签） categoryDataset, // dataset PlotOrientation.VERTICAL, true, // legend false, // tooltips false); // URLs //以下的设置可以由用户定制，也可以省略 CategoryPlot plot = (CategoryPlot) jfreechart.getPlot(); //背景色　透明度 plot.setBackgroundAlpha(0.5f); //前景色　透明度 plot.setForegroundAlpha(0.5f); //其它设置可以参考 CategoryPlot return jfreechart; } /** * 创建CategoryDataset对象 * */ public static CategoryDataset createDataset() { List<Salesitem> items = Salesitem.dao.getAllItem(); DefaultCategoryDataset categoryDataset = new DefaultCategoryDataset(); for (Salesitem salesitem : items) { String name = Product.dao.findById(salesitem.getInt("productid")).getStr("name"); categoryDataset.addValue(salesitem.getNumber("count"), "", name); } return categoryDataset; } public static DefaultPieDataset createPieDataset() { List<Salesitem> items = Salesitem.dao.getAllItem(); DefaultPieDataset dfp = new DefaultPieDataset(); for (Salesitem salesitem : items) { String name = Product.dao.findById(salesitem.getInt("productid")).getStr("name"); dfp.setValue(name,salesitem.getNumber("count")); } return dfp; } public static JFreeChart createPieChart(DefaultPieDataset dfp){ //创建主题样式 StandardChartTheme standardChartTheme=new StandardChartTheme("CN"); //设置标题字体 standardChartTheme.setExtraLargeFont(new Font("隶书",Font.BOLD,20)); //设置图例的字体 standardChartTheme.setRegularFont(new Font("宋书",Font.PLAIN,15)); //设置轴向的字体 standardChartTheme.setLargeFont(new Font("宋书",Font.PLAIN,15)); //应用主题样式 ChartFactory.setChartTheme(standardChartTheme); JFreeChart chart = ChartFactory.createPieChart3D("产品销量饼图",dfp, true, true, true); PiePlot3D plot = (PiePlot3D) chart.getPlot(); // 图形边框颜色 plot.setBaseSectionOutlinePaint(Color.RED); // plot.setBaseSectionPaint(Color.WHITE); // 图形边框粗细 plot.setBaseSectionOutlineStroke(new BasicStroke(1.0f)); // 指定图片的透明度(0.0-1.0) plot.setForegroundAlpha(0.65f); // 指定显示的饼图上圆形(false)还椭圆形(true) plot.setCircular(true); // 设置第一个 饼块section 的开始位置，默认是12点钟方向 plot.setStartAngle(360); // 设置鼠标悬停提示 plot.setToolTipGenerator(new StandardPieToolTipGenerator()); return chart; } }