Java POI 生成 Excel 折线图并嵌入 Word 文档

import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.xddf.usermodel.chart.; import org.apache.poi.xssf.usermodel.; import org.apache.poi.xwpf.usermodel.*;

import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.File;

public class WordChartExample {

public static void main(String[] args) {
    try {
        // 读取Excel文件
        FileInputStream fileIn = new FileInputStream('巴新EDEVU水库数据处理表.xlsx');
        XSSFWorkbook workbook = new XSSFWorkbook(fileIn);
        XSSFSheet sheet1 = workbook.getSheet('P9');
        XSSFSheet sheet2 = workbook.getSheet('P10');

        // 创建折线图
        XSSFDrawing drawing = sheet2.createDrawingPatriarch();
        XSSFClientAnchor anchor = drawing.createAnchor(0, 0, 0, 0, 3, 9, 9, 19);
        XSSFChart chart = drawing.createChart(anchor);
        chart.setTitleText('数据折线图');
        chart.setTitleOverlay(false);

        // 设置图例位置
        XDDFChartLegend legend = chart.getOrAddLegend();
        legend.setPosition(LegendPosition.BOTTOM);

        // 创建数据系列
        XDDFCategoryAxis bottomAxis = chart.createCategoryAxis(AxisPosition.BOTTOM);
        XDDFValueAxis leftAxis = chart.createValueAxis(AxisPosition.LEFT);
        leftAxis.setCrosses(AxisCrosses.AUTO_ZERO);

        // 创建数据源
        XDDFNumericalDataSource<Double> xs1 = XDDFDataSourcesFactory.fromNumericCellRange(sheet1, new CellRangeAddress(11, 85, 0, 0));
        XDDFNumericalDataSource<Double> ys1 = XDDFDataSourcesFactory.fromNumericCellRange(sheet1, new CellRangeAddress(11, 85, 2, 2));
        XDDFNumericalDataSource<Double> xs2 = XDDFDataSourcesFactory.fromNumericCellRange(sheet2, new CellRangeAddress(11, 139, 0, 0));
        XDDFNumericalDataSource<Double> ys2 = XDDFDataSourcesFactory.fromNumericCellRange(sheet2, new CellRangeAddress(11, 139, 2, 2));

        // 添加数据系列
        XDDFLineChartData data = (XDDFLineChartData) chart.createData(ChartTypes.LINE, bottomAxis, leftAxis);
        XDDFLineChartData.Series series1 = (XDDFLineChartData.Series) data.addSeries(xs1, ys1);
        series1.setTitle('P9数据折线图', null);
        XDDFLineChartData.Series series2 = (XDDFLineChartData.Series) data.addSeries(xs2, ys2);
        series2.setTitle('P10数据折线图', null);

        // 绘制图表
        chart.plot(data);

        // 创建Word文档
        XWPFDocument document = new XWPFDocument();

        // 创建段落
        XWPFParagraph paragraph = document.createParagraph();
        paragraph.setAlignment(ParagraphAlignment.CENTER);

        // 添加图表到段落
        XWPFRun run = paragraph.createRun();
        String fileName = '折线图.docx';

        // 将图表写入临时文件
        String tempFileName = 'temp.xlsx';
        FileOutputStream tempFileOut = new FileOutputStream(tempFileName);
        workbook.write(tempFileOut);
        tempFileOut.close();

        // 将临时文件中的图表添加到Word文档中
        FileInputStream tempFileIn = new FileInputStream(tempFileName);
        run.addPicture(tempFileIn, XWPFDocument.PICTURE_TYPE_EMF, fileName, Units.toEMU(400), Units.toEMU(300));
        tempFileIn.close();

        // 删除临时文件
        File tempFile = new File(tempFileName);
        tempFile.delete();

        // 保存Word文档
        FileOutputStream fileOut = new FileOutputStream(fileName);
        document.write(fileOut);
        fileOut.close();

        System.out.println('折线图已创建并保存到Word文档中。');

    } catch (IOException e) {
        e.printStackTrace();
    }
}

}