jar
 	compile('org.apache.poi:poi:4.0.1')
        compile('org.apache.poi:poi-scratchpad:4.0.1')
        compile('org.apache.poi:poi-ooxml:4.0.1')
        compile('org.apache.poi:ooxml-schemas:1.4') 
   
public static class Inbound_chartExport{
        public XSSFSheet sheet;//操作的sheet
        public String title;//头部标题
        public String seriesTitle;//系列标题
        public String xName;//x轴标题
        public String yName;
        public int startRow;//开始行数
        public int size;//结束行数
        public int xStartCol;//x轴列数
        public int yStartCol;
        public int col1;//图标放置位置
        public int row1;
        public int col2;
        public int row2;
    }

public void excelBarChart(Inbounds.Inbound_chartExport inbound){
        XSSFDrawing drawing = inbound.sheet.createDrawingPatriarch();
        XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, inbound.col1, inbound.row1, inbound.col2, inbound.row2);

        XSSFChart chart = drawing.createChart(anchor);//图表
        chart.setTitleText(inbound.title);
        chart.setTitleOverlay(false);
        XDDFChartLegend legend = chart.getOrAddLegend();//图例项
        legend.setPosition(LegendPosition.TOP_RIGHT);

        // Use a category axis for the bottom axis.
        XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);//x轴和位置
        bottomAxis.setTitle(inbound.xName);
        XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);//y轴和位置
        leftAxis.setTitle(inbound.yName);
        leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);
        XDDFChartData data = chart.createData(ChartTypes.BAR, bottomAxis, leftAxis);//生成Data

        XDDFDataSource<String> xs = XDDFDataSourcesFactory.fromStringCellRange(inbound.sheet, new CellRangeAddress(inbound.startRow, inbound.size, inbound.xStartCol, inbound.xStartCol));//x轴range区域
        XDDFNumericalDataSource<Double> ys1 = XDDFDataSourcesFactory.fromNumericCellRange(inbound.sheet, new CellRangeAddress(inbound.startRow, inbound.size, inbound.yStartCol, inbound.yStartCol));//y轴range区域
        XDDFChartData.Series series1 = data.addSeries(xs, ys1);//生成Series 系列/维度
        series1.setTitle(inbound.seriesTitle, null);

        chart.plot(data);
        XDDFBarChartData bar = (XDDFBarChartData) data;//由数据生成图表，Bar柱状图，Pie饼状图,Line折线图，Scatter散点图
        bar.setBarDirection(BarDirection.BAR);//柱状如方向 BAR 竖向 COL横向

        CTChart ctChart = chart.getCTChart();
        CTPlotArea ctPlotArea = ctChart.getPlotArea();
        CTBarChart ctBarChart = ctPlotArea.getBarChartArray(0);
        CTBarSer ctBarSer = ctBarChart.getSerArray(0);
        CTDLbls newDLbls = ctBarSer.addNewDLbls();//数据标签
        CTBoolean ctBoolean = ctBarChart.addNewVaryColors();//多样颜色，true 选用category作为图例项，false选用系列作为图例项，最好false
        ctBoolean.setVal(false);
        newDLbls.setShowCatName(ctBoolean);//数据标签 显示类别名称
        newDLbls.setShowSerName(ctBoolean);//数据标签 显示序列名称
        newDLbls.setShowPercent(ctBoolean);
        newDLbls.setShowBubbleSize(ctBoolean);
        newDLbls.setShowLeaderLines(ctBoolean);
        newDLbls.setShowLegendKey(ctBoolean);//图例化标签
        newDLbls.addNewShowVal().setVal(true);//数据标签 显示值

        solidFillSeries(data, 0, PresetColor.CHARTREUSE);//颜色PresetColor
    }
    private static void solidFillSeries(XDDFChartData data, int index, PresetColor color) {
        XDDFSolidFillProperties fill = new XDDFSolidFillProperties(XDDFColor.from(color));
        XDDFChartData.Series series = data.getSeries().get(index);
        XDDFShapeProperties properties = series.getShapeProperties();
        if (properties == null) {
            properties = new XDDFShapeProperties();
        }
        properties.setFillProperties(fill);
        series.setShapeProperties(properties);
    }

Excel导出（Java）资料
柱状图(poi 3.17)：https://*.com/questions/38913412/create-bar-chart-in-excel-with-apache-poi
饼图(poi 3.17)：https://*.com/questions/34718734/apache-poi-supports-only-scattercharts-and-linecharts-why
利用导入的模板导出(poi 3.17之前)：https://blog.cacoveanu.com/2015/2015.08.27.15.15.charts.apache.poi.html
poi 4.0.1chart（Example）:https://svn.apache.org/repos/asf/poi/trunk/src/examples/src/org/apache/poi/xssf/usermodel/examples/
官方文档：https://poi.apache.org/apidocs/dev/org/apache/poi/xddf/usermodel/chart/package-summary.html
中文事例：https://blog.csdn.net/qq_24365145/article/details/89146549
https://blog.csdn.net/Lonely_boy_/article/details/88870079