Dto

Dto设置参考

[ExcelImporter(IsLabelingError = true)]
public class MyDto
{
	[ImporterHeader(Name = "序号")]
	[ExporterHeader(DisplayName = "序号")]
	public int Id { get; set; }
}

Controller

生成模板

[HttpGet("GenerateTemplate")]
//[WrapResult]
[SwaggerOperation(summary: "生成故障配置导入模板", Tags = new[] { "云端-故障告警" })]
public async Task<ActionResult> GenerateExcelImportTemplate()
{
    return await _service.GenerateExcelImportTemplate();
}

下载生成的模板返回数据时，不能使用WrapResult注解，否则不会生成下载链接
返回结果为ActionResult

导入数据

[HttpPost("ImportConfig")]
[WrapResult]
[SwaggerOperation(summary: "导入故障配置信息")]
public async Task ImportEventConfig(IFormFile formFile)
{
     await _service.ImportEventConfig(formFile);
}

Service

导出模板

public async Task<ActionResult> GenerateExcelImportTemplate()
{
    var gg = await Importer.GenerateTemplateBytes<MyDto>();
    var stream = gg.ToStream();

    FileStreamResult resultStream = new FileStreamResult(stream, "application/octet-stream")
   {
       FileDownloadName = "模板.xlsx"
   };

  return resultStream;
}

获取生成的模板的byte数组，并转换成Stream流，将Stream流作为结果返回

导入数据

public async Task ImportEventConfig(IFormFile formFile)
        {
            var fileStream = formFile.OpenReadStream();
            var import = Importer.Import<MyDto>(fileStream);

            var inputs = import.Result.Data.ToList();
            var list = ObjectMapper.Map<List<EventConfigInput>, List<EventConfig>>(inputs);

            await _myDtoRepository.Insert(list);
        }