我的登录程序存在问题。
protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
WebApiLogin log = new WebApiLogin();
string clientToken = "";
string clientAddress = "";
string requestUri = "";
string requestBody = "";
string responseBody = "";
HttpResponseMessage result = null;
try
{
clientToken = request.Headers.GetValues("Token").FirstOrDefault();
requestUri = request.RequestUri.AbsoluteUri;
clientAddress = HttpContext.Current.Request.UserHostAddress;
// log request body
requestBody = await request.Content.ReadAsStringAsync();
// let other handlers process the request
result = await base.SendAsync(request, cancellationToken);
if (result.Content != null)
{
// once response body is ready, log it
responseBody = await result.Content.ReadAsStringAsync();
// log full
log.Log(clientToken, clientAddress, requestUri, requestBody, responseBody);
}
else
{
// log partial
log.Log(clientToken, clientAddress, requestUri, requestBody);
}
}
catch (Exception ex)
{
log.Log(clientToken, clientAddress, requestUri, requestBody, ex.Message);
}
return result;
}
在请求和响应中使用json调用API时，一切正常。
但问题开始于我的日志存储库开始增长，整个过程开始延迟一点点。由于异步调用 - 我猜 - 当调用一个方法在呼叫上发送一些文件用于上传时，我收到了一个错误。在我的方法下面：
public IHttpActionResult Post()
{
try
{
string sCnn = GetClientCnnFromToken();
if (!String.IsNullOrEmpty(sCnn))
{
var httpRequest = HttpContext.Current.Request;
if (httpRequest.Files.Count > 0)
{
Ecommerce.DAL.BackEnd.Configuration.System objConfig = new Ecommerce.DAL.BackEnd.Configuration.System(sCnn);
using (DataTable dtb = objConfig.Management("RETORNA-PARAMETRO"))
{
if (!dtb.Rows[0].IsNull("str_cnn_cdn_content") && dtb.Rows[0]["str_cnn_cdn_content"].ToString() != "")
{
//storageAccount = CloudStorageAccount.Parse(ConfigurationManager.AppSettings["StorageConnectionString"]);
var storageAccount = CloudStorageAccount.Parse(dtb.Rows[0]["str_cnn_cdn_content"].ToString());
//create client to work with blobs
CloudBlobClient blobClient = storageAccount.CreateCloudBlobClient();
//already created container via azure management portal, set container reference
CloudBlobContainer container = blobClient.GetContainerReference("product");
foreach (string file in httpRequest.Files)
{
var postedFile = httpRequest.Files[file];
CloudBlockBlob blockBlob = container.GetBlockBlobReference(postedFile.FileName);
blockBlob.Properties.ContentType = "image/jpeg";
blockBlob.UploadFromStream(postedFile.InputStream);
}
return Ok();
}
else
{
throw new Exception("Unable to retrieve CDN configuration for this costumer. Refer to e-commerce configuration for more details.");
}
}
}
else
{
return BadRequest("You must post images in files on request. Files Count = 0");
}
}
else
{
throw new Exception("Invalid Token");
}
}
catch (Exception ex)
{
throw ex;
}
}
在这一行：
var httpRequest = HttpContext.Current.Request;
由于HttpContext为null，我的“Object Reference not set”错误。我想由于日志方法上的异步调用之间的延迟。
停止日志方法“空引用”错误停止。
有没有办法解决这个问题，我的意思是，记录json和文件上传？
如果没有，是否可以在涉及文件上传时跳过此日志记录？
提前致谢，