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我試圖使用asp.net webapi將圖像保存到數據庫。在此控制器中,將圖像保存到我的/Content/Banner/
文件夾中。在asp.net web api中將值傳遞給數據庫
[HttpPost]
[Route("PostBanner")]
[AllowAnonymous]
public HttpResponseMessage PostBannerImage()
{
Dictionary<string, object> dict = new Dictionary<string, object>();
try
{
var httpRequest = HttpContext.Current.Request;
foreach (string file in httpRequest.Files)
{
HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created);
var postedFile = httpRequest.Files[file];
if (postedFile != null && postedFile.ContentLength > 0)
{
int MaxContentLength = 1024 * 1024 * 1; //Size = 1 MB
IList<string> AllowedFileExtensions = new List<string> { ".jpg", ".gif", ".png" };
var ext = postedFile.FileName.Substring(postedFile.FileName.LastIndexOf('.'));
var extension = ext.ToLower();
if (!AllowedFileExtensions.Contains(extension))
{
var message = string.Format("Please Upload image of type .jpg,.gif,.png.");
dict.Add("error", message);
return Request.CreateResponse(HttpStatusCode.BadRequest, dict);
}
else if (postedFile.ContentLength > MaxContentLength)
{
var message = string.Format("Please Upload a file upto 1 mb.");
dict.Add("error", message);
return Request.CreateResponse(HttpStatusCode.BadRequest, dict);
}
else
{
var filePath = HttpContext.Current.Server.MapPath("~/Content/Banner/" + postedFile.FileName + extension);
postedFile.SaveAs(filePath);
}
}
var message1 = string.Format("Image Updated Successfully.");
return Request.CreateErrorResponse(HttpStatusCode.Created, message1); ;
}
var res = string.Format("Please Upload a image.");
dict.Add("error", res);
return Request.CreateResponse(HttpStatusCode.NotFound, dict);
}
catch (Exception ex)
{
var res = string.Format("some Message");
dict.Add("error", res);
return Request.CreateResponse(HttpStatusCode.NotFound, dict);
}
}
現在我需要發送這文件路徑到數據庫。我知道我只需要將此文件路徑傳遞給以下服務控制器。但我不知道如何通過它。任何人都可以幫助我解決這個問題。
這是我services.cs
public async Task<int?> Addbanner(DisplayBannersDto dto)
{
try
{
var d = _dbContext.Banners
.FirstOrDefault();
d.Banner_Description = dto.Description;
d.Banner_Location = dto.Location;
//mark entry as modifed
_dbContext.Entry(d).State = EntityState.Modified;
await _dbContext.SaveChangesAsync();
return d.Banner_Id;
}
catch (Exception ex)
{
throw ex;
}
}
這是我的控制器
[HttpPost]
[Route("AddBanner")]
public async Task<IHttpActionResult> AddBanner(DisplayBannersDto dto)
{
if (!ModelState.IsValid)
return BadRequest(ModelState);
int? result = await _service.Addbanner(dto);
return Ok();
}
是否要從PostBannerImage()API內部保存圖像路徑,還是要調用第二個API來執行數據庫保存? –
@JoseFrancis我想調用第二個API來執行數據庫保存.. – ManojKanth
那麼,爲什麼不從PostBannerImage()返回「文件路徑」,在客戶端接收,然後在插入相同內容後調用第二個API DisplayBannersDto。 –