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导出Excel合并单元格

程序员文章站 2022-06-14 09:26:10
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import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;

import java.io.File;
import java.io.FileOutputStream;

/**
 * @version 1.0
 * @name
 * @description
 */
public class TestExportExcel {
    public static void main(String[] args) throws Exception{

        HSSFWorkbook workbook = new HSSFWorkbook();

        HSSFCellStyle style = workbook.createCellStyle();
        style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);

        HSSFSheet sheet = workbook.createSheet("sheet");

        HSSFRow row0 = sheet.createRow(0);
        HSSFCell cell_00 = row0.createCell(0);
        cell_00.setCellStyle(style);
        cell_00.setCellValue("日期");
        HSSFCell cell_01 = row0.createCell(1);
        cell_01.setCellStyle(style);
        cell_01.setCellValue("午别");

        HSSFRow row1 = sheet.createRow(1);
        HSSFCell cell_10 = row1.createCell(0);
        cell_10.setCellStyle(style);
        cell_10.setCellValue("20210429");
        HSSFCell cell_11 = row1.createCell(1);
        cell_11.setCellStyle(style);
        cell_11.setCellValue("上午");

        HSSFRow row2 = sheet.createRow(2);
        HSSFCell cell_21 = row2.createCell(1);
        cell_21.setCellStyle(style);
        cell_21.setCellValue("中午");

        HSSFRow row3 = sheet.createRow(3);
        HSSFCell cell_31 = row3.createCell(1);
        cell_31.setCellStyle(style);
        cell_31.setCellValue("下午");

        // 合并日期占两行(4个参数,分别为起始行,结束行,起始列,结束列)
        // 行和列都是从0开始计数,且起始结束都会合并
        // 这里是合并excel中日期的两行为一行
        CellRangeAddress region = new CellRangeAddress(1, 3, 0, 0);
        sheet.addMergedRegion(region);

        File file = new File("E:\\demo.xls");
        FileOutputStream fout = new FileOutputStream(file);
        workbook.write(fout);
        fout.close();
    }

}

效果

导出Excel合并单元格

相关标签: 技术 java excel