本文介绍使用Spire.XLS for Java在Excel中创建分离型饼图及环形图的方法。

分离型饼图

import com.spire.xls.*;
import com.spire.xls.charts.ChartSerie;

import java.awt.*;

public class ExplodedPieChart {
    public static void main(String[] args) {
        //创建Workbook对象
        Workbook workbook = new Workbook();

        //获取第一个工作表
        Worksheet sheet = workbook.getWorksheets().get(0);

        //将图表数据写入工作表
        sheet.getCellRange("A1").setValue("年份");
        sheet.getCellRange("A2").setValue("2017");
        sheet.getCellRange("A3").setValue("2018");
        sheet.getCellRange("A4").setValue("2019");
        sheet.getCellRange("A5").setValue("2020");

        sheet.getCellRange("B1").setValue("销售额");
        sheet.getCellRange("B2").setNumberValue(4000);
        sheet.getCellRange("B3").setNumberValue(6000);
        sheet.getCellRange("B4").setNumberValue(7000);
        sheet.getCellRange("B5").setNumberValue(8500);

        //设置单元格样式
        sheet.getCellRange("A1:B1").setRowHeight(15);
        sheet.getCellRange("A1:B1").getCellStyle().setColor(Color.darkGray);
        sheet.getCellRange("A1:B1").getCellStyle().getExcelFont().setColor(Color.white);
        sheet.getCellRange("A1:B1").getCellStyle().setVerticalAlignment(VerticalAlignType.Center);
        sheet.getCellRange("A1:B1").getCellStyle().setHorizontalAlignment(HorizontalAlignType.Center);
        sheet.getCellRange("B2:C5").getCellStyle().setNumberFormat("\"￥\"#,##0");

        //添加整体分离型饼图
        Chart piechart = sheet.getCharts().add(ExcelChartType.Pie);
        //设置图表数据区域
        piechart.setDataRange(sheet.getCellRange("B2:B5"));
        piechart.setSeriesDataFromRange(false);
        //设置图表位置
        piechart.setLeftColumn(4);
        piechart.setTopRow(1);
        piechart.setRightColumn(10);
        piechart.setBottomRow(20);
        //设置图表标题
        piechart.setChartTitle("年销售额");
        piechart.getChartTitleArea().isBold(true);
        piechart.getChartTitleArea().setSize(12);
        //设置系列标签
        ChartSerie cs = piechart.getSeries().get(0);
        cs.setCategoryLabels(sheet.getCellRange("A2:A5"));
        cs.setValues(sheet.getCellRange("B2:B5"));
        cs.getDataPoints().getDefaultDataPoint().getDataLabels().hasValue(true);
        piechart.getPlotArea().getFill().setVisible(false);

        //设置饼图整体分离
        for (int i = 0; i < piechart.getSeries().getCount(); i++)
        {
            piechart.getSeries().get(i).getDataFormat().setPercent(20);
        }


        //添加局部分离型饼图
        Chart piechart1 = sheet.getCharts().add(ExcelChartType.Pie);
        piechart1.setDataRange(sheet.getCellRange("B2:B5"));
        piechart1.setSeriesDataFromRange(false);
        piechart1.setLeftColumn(11);
        piechart1.setTopRow(1);
        piechart1.setRightColumn(17);
        piechart1.setBottomRow(20);
        piechart1.setChartTitle("年销售额");
        piechart1.getChartTitleArea().isBold(true);
        piechart1.getChartTitleArea().setSize(12);
        ChartSerie cs1 = piechart1.getSeries().get(0);
        cs1.setCategoryLabels(sheet.getCellRange("A2:A5"));
        cs1.setValues(sheet.getCellRange("B2:B5"));
        cs1.getDataPoints().getDefaultDataPoint().getDataLabels().hasValue(true);
        piechart1.getPlotArea().getFill().setVisible(false);
        //设置饼图局部分离
        piechart1.getSeries().get(0).getDataPoints().get(1).getDataFormat().setPercent(20);

        //保存文档
        workbook.saveToFile("ExplodedPieChart.xlsx", ExcelVersion.Version2016);
        workbook.dispose();
    }
}

分离型环形图

import com.spire.xls.*;
import com.spire.xls.charts.ChartSerie;

import java.awt.*;

public class ExplodedDoughnutChart {
    public static void main(String[] args) {
        //创建Workbook对象
        Workbook workbook = new Workbook();

        //获取第一个工作表
        Worksheet sheet = workbook.getWorksheets().get(0);

        //将图表数据写入工作表
        sheet.getCellRange("A1").setValue("年份");
        sheet.getCellRange("A2").setValue("2017");
        sheet.getCellRange("A3").setValue("2018");
        sheet.getCellRange("A4").setValue("2019");
        sheet.getCellRange("A5").setValue("2020");
        sheet.getCellRange("B1").setValue("销售额");
        sheet.getCellRange("B2").setNumberValue(4000);
        sheet.getCellRange("B3").setNumberValue(6000);
        sheet.getCellRange("B4").setNumberValue(7000);
        sheet.getCellRange("B5").setNumberValue(8500);

        //设置单元格样式
        sheet.getCellRange("A1:B1").setRowHeight(15);
        sheet.getCellRange("A1:B1").getCellStyle().setColor(Color.darkGray);
        sheet.getCellRange("A1:B1").getCellStyle().getExcelFont().setColor(Color.white);
        sheet.getCellRange("A1:B1").getCellStyle().setVerticalAlignment(VerticalAlignType.Center);
        sheet.getCellRange("A1:B1").getCellStyle().setHorizontalAlignment(HorizontalAlignType.Center);
        sheet.getCellRange("B2:C5").getCellStyle().setNumberFormat("\"￥\"#,##0");

        //添加环形图
        Chart chart = sheet.getCharts().add(ExcelChartType.Doughnut);
        //设置图表数据区域
        chart.setDataRange(sheet.getCellRange("B2:B5"));
        chart.setSeriesDataFromRange(false);
        //设置图表位置
        chart.setLeftColumn(4);
        chart.setTopRow(1);
        chart.setRightColumn(10);
        chart.setBottomRow(20);
        //设置图表标题
        chart.setChartTitle("年销售额");
        chart.getChartTitleArea().isBold(true);
        chart.getChartTitleArea().setSize(12);

        //设置系列标签
        ChartSerie cs = chart.getSeries().get(0);
        cs.setCategoryLabels(sheet.getCellRange("A2:A5"));
        cs.setValues(sheet.getCellRange("B2:B5"));
        cs.getDataPoints().getDefaultDataPoint().getDataLabels().hasValue(true);
        chart.getPlotArea().getFill().setVisible(false);



        //添加分离型环形图
        Chart chart1 = sheet.getCharts().add(ExcelChartType.DoughnutExploded); 
        chart1.setDataRange(sheet.getCellRange("B2:B5"));
        chart1.setSeriesDataFromRange(false);
        chart1.setLeftColumn(11);
        chart1.setTopRow(1);
        chart1.setRightColumn(17);
        chart1.setBottomRow(20);
        chart1.setChartTitle("年销售额");
        chart1.getChartTitleArea().isBold(true);
        chart1.getChartTitleArea().setSize(12);
        ChartSerie cs1 = chart1.getSeries().get(0);
        cs1.setCategoryLabels(sheet.getCellRange("A2:A5"));
        cs1.setValues(sheet.getCellRange("B2:B5"));
        cs1.getDataPoints().getDefaultDataPoint().getDataLabels().hasValue(true);
        chart1.getPlotArea().getFill().setVisible(false);

        //保存文档
        workbook.saveToFile("ExplodedDoughnutChart.xlsx",FileFormat.Version2013);
        workbook.dispose();
    }
}