public class YqjgYiZzsjExcelEntity2{ private String rq; private qlzz2 x3ql; private qlzz2 x9qllqyl;}public class qlzz {private String lqyl; private String wsyl; private String zlwd;}我想将YqjgYiZzsjExcelEntity2导出为空excel表,表头一共有三层,第一层叫“油气加工一大队装置数据”,第二层是x3ql,x9qllqyl,也是第一层的两个子表头,同时x3ql表头下,有lqyl、wsyl、zlwd等子表头,x9qllqyl表头下,也有有lqyl、wsyl、zlwd等子表头,且导出函数为FileUtil.downLoadExcel(fileName,response,workbook);
时间: 2024-03-22 10:39:31 浏览: 15
您可以使用 Java 的 Apache POI 库来创建并设置 Excel 表头,然后将 YqjgYiZzsjExcelEntity2 中的数据填充到 Excel 中,并最终使用 FileUtil.downLoadExcel(fileName,response,workbook) 函数下载 Excel 文件。
以下是伪代码实现的示例:
```java
// 创建工作簿
Workbook workbook = new XSSFWorkbook();
// 创建工作表
Sheet sheet = workbook.createSheet("油气加工一大队装置数据");
// 设置第一行表头
Row row1 = sheet.createRow(0);
Cell cell1 = row1.createCell(0);
cell1.setCellValue("油气加工一大队装置数据");
// 设置第二行表头
Row row2 = sheet.createRow(1);
Cell cell2_1 = row2.createCell(0);
cell2_1.setCellValue("x3ql");
Cell cell2_2 = row2.createCell(1);
cell2_2.setCellValue("x9qllqyl");
// 设置第三行表头
Row row3 = sheet.createRow(2);
Cell cell3_1 = row3.createCell(0);
cell3_1.setCellValue("lqyl");
Cell cell3_2 = row3.createCell(1);
cell3_2.setCellValue("wsyl");
Cell cell3_3 = row3.createCell(2);
cell3_3.setCellValue("zlwd");
// 填充数据
YqjgYiZzsjExcelEntity2 entity = new YqjgYiZzsjExcelEntity2();
// 填充日期
Row row4 = sheet.createRow(3);
Cell dateCell = row4.createCell(0);
dateCell.setCellValue(entity.getRq());
// 填充x3ql数据
qlzz2 x3ql = entity.getX3ql();
Row row5 = sheet.createRow(4);
Cell x3qlCell = row5.createCell(0);
x3qlCell.setCellValue(x3ql.getLqyl());
Cell x3qlCell2 = row5.createCell(1);
x3qlCell2.setCellValue(x3ql.getWsyl());
Cell x3qlCell3 = row5.createCell(2);
x3qlCell3.setCellValue(x3ql.getZlwd());
// 填充x9qllqyl数据
qlzz2 x9qllqyl = entity.getX9qllqyl();
Row row6 = sheet.createRow(5);
Cell x9qllqylCell = row6.createCell(0);
x9qllqylCell.setCellValue(x9qllqyl.getLqyl());
Cell x9qllqylCell2 = row6.createCell(1);
x9qllqylCell2.setCellValue(x9qllqyl.getWsyl());
Cell x9qllqylCell3 = row6.createCell(2);
x9qllqylCell3.setCellValue(x9qllqyl.getZlwd());
// 下载 Excel 文件
FileUtil.downLoadExcel(fileName, response, workbook);
```
请根据您的具体需求修改代码中的类名、属性名、表头等信息。
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