使用Apache POI更新股票图表

import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import java.io.*;

public class UpdateStockChart {
    public static void main(String[] args) {
        try {
            // 打开Excel文档
            FileInputStream file = new FileInputStream(new File("stock_chart.xlsx"));
            Workbook workbook = WorkbookFactory.create(file);

            // 获取股票图表所在的工作表
            Sheet sheet = workbook.getSheet("股票数据");

            // 获取股票图表
            Chart chart = sheet.getChartAt(0);

            // 获取图表的数据源范围
            CellRangeAddress dataRange = chart.getDataRange();

            // 更新数据源范围内的单元格
            for (int row = dataRange.getFirstRow(); row <= dataRange.getLastRow(); row++) {
                Row rowData = sheet.getRow(row);
                for (int col = dataRange.getFirstColumn(); col <= dataRange.getLastColumn(); col++) {
                    Cell cell = rowData.getCell(col);
                    cell.setCellValue(getNewStockPrice());  // 替换为获取最新股票价格的方法
                }
            }

            // 刷新图表
            ((XSSFChart) chart).refresh();

            // 保存Excel文档
            FileOutputStream outFile = new FileOutputStream(new File("updated_stock_chart.xlsx"));
            workbook.write(outFile);
            outFile.close();

            // 关闭Excel文档
            workbook.close();

            System.out.println("股票图表已更新并保存为updated_stock_chart.xlsx");

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

    private static double getNewStockPrice() {
        // 获取最新股票价格的逻辑，这里仅作示例
        return 100.0;
    }
}