当前上下文中不存在“MimeTypeMap” 怎么引用进来 应该下载什么扩展呢
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using AisinIX.Amateras.Common.Models;
using AisinIX.Amateras.Common.Utilities;
using AisinIX.Amateras.UserInfo.Common.Models;
using AisinIX.CMS.CommonMaster.Models;
using AisinIX.CMS.EnvironmentMaster.services;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Extensions;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using AisinIX.Amateras.UserInfo.Common.ServiceAccessors;
namespace AisinIX.CMS.EnvironmentMaster.WebApi.Controllers
{
[ApiController]
[Route("api/environmentMaster")]
public class EnvironmentMasterController : ControllerBase
{
private readonly ILogger<EnvironmentMasterController> _logger;
private readonly IConfigUtility _configUtility;
private readonly IApiContext _apiContext;
private IEnvironmentMasterService _EnvironmentMasterService;
private readonly IUserInfoServiceAccessor _userInfoServiceAccessor;
public EnvironmentMasterController(
ILogger<EnvironmentMasterController> logger,
IApiContext apiContext,
IConfigUtility configUtility,
IEnvironmentMasterService EnvironmentMasterService,
IUserInfoServiceAccessor userInfoServiceAccessor
)
{
_logger = logger;
_configUtility = configUtility;
_apiContext = apiContext;
_EnvironmentMasterService = EnvironmentMasterService;
_userInfoServiceAccessor = userInfoServiceAccessor;
}
public ActionResult GetMasterDownLoad([FromQuery(Name = "masterName")] string masterName){
try
{
String URL = HttpContext.Request.GetDisplayUrl();
_logger.LogInformation("┏■ GetMasterDownLoad 開始 ■");
_logger.LogInformation($"URL:{URL}");
_logger.LogInformation($"各種マスタデータのダウンロード(マスタ=[{masterName}])");
if (String.IsNullOrEmpty(masterName))
{
_logger.LogWarning($"マスタ名がブランクです。");
return BadRequest();
}
masterName = masterName.Trim();
MemoryStream result = _EnvironmentMasterService.MasterDataDownLoad(masterName,"0");
if(result == null){
return StatusCode(404);
}
string fileName = masterName + ".xlsx";
// 说这个在上下文中不存在 “MimeTypeMap”
string contentType = MimeTypeMap.GetMimeType(fileName);
var bytes = result.ToArray();
var cd = new System.Net.Mime.ContentDisposition
{
FileName = fileName,
Inline = false
};
Response.Headers.Add("Content-Disposition", cd.ToString());
return File(bytes, contentType);
}
catch (Exception ex)
{
int eventlogID = int.Parse(_configUtility.GetStringSetting("EventLogID"));
_logger.LogError(eventlogID, $"エラーが発生({ex.Message})");
return StatusCode(500);
}
finally
{
_logger.LogInformation("┗■ GetMasterDownLoad 終了 ■");
}
}
}
}
