springboot excel导入导出具体代码

你好，以下是 Spring Boot 实现 Excel 导入导出的示例代码：

1. 导入 Excel

@PostMapping("/import")
public String importExcel(@RequestParam("file") MultipartFile file) throws IOException {
    // 读取 Excel 文件
    Workbook workbook = WorkbookFactory.create(file.getInputStream());
    Sheet sheet = workbook.getSheetAt();

    // 遍历行
    for (Row row : sheet) {
        // 遍历单元格
        for (Cell cell : row) {
            // 处理单元格数据
            String value = cell.getStringCellValue();
            // ...
        }
    }

    return "导入成功";
}

2. 导出 Excel

@GetMapping("/export")
public void exportExcel(HttpServletResponse response) throws IOException {
    // 创建 Excel 文件
    Workbook workbook = new XSSFWorkbook();
    Sheet sheet = workbook.createSheet("Sheet1");

    // 写入数据
    Row row = sheet.createRow();
    Cell cell = row.createCell();
    cell.setCellValue("Hello, World!");

    // 输出 Excel 文件
    response.setContentType("application/vnd.ms-excel");
    response.setHeader("Content-Disposition", "attachment; filename=test.xlsx");
    workbook.write(response.getOutputStream());
}

希望对你有帮助。