当我尝试使用HttpClient
PostAsync
并使用async
和await
从WebApi 1发布到WebApi 2时,我遇到了僵局。
以下是WebAPI 1:
public HttpResponseMessage Get([FromUri]int oid)
{
var orderdetails = _orderServices.GetOrderDetails(oid);
var xml = new XmlMediaTypeFormatter();
xml.UseXmlSerializer = true;
string orderdetailsser = Serialize(xml, orderdetails);
var result = PostXml(orderdetailsser);
return Request.CreateResponse(HttpStatusCode.OK);
}
public static async Task<HttpResponseMessage> PostXml(string str)
{
using (var client = new HttpClient())
{
client.BaseAddress = new Uri("http://localhost:58285/");
var content = new StringContent(str);
var response = await client.PostAsync("api/default/ReceiveXml", content).ConfigureAwait(false);
return response;
}
}
和WebApi2:
[System.Web.Http.HttpPost]
public HttpResponseMessage ReceiveXml(HttpRequestMessage request)
{
var xmlDoc = new XmlDocument();
xmlDoc.Load(request.Content.ReadAsStreamAsync().Result);
xmlDoc.Save(@"C:\xmlfiles\xml2.xml");
XmlSerializer deserializer = new XmlSerializer(typeof(OrderInfoModel));
TextReader reader = new StreamReader(@"C:\xmlfiles\xml2.xml");
object obj = deserializer.Deserialize(reader);
OrderInfoModel orderdetails = (OrderInfoModel)obj;
reader.Close();
var patient_id = _patientServices.ProcessPatient(orderdetails.Patient, orderdetails.OrderInfo);
var orderid = _orderServices.ProcessOrder(orderdetails.Patient, orderdetails.OrderInfo, patient_id);
if (orderdetails.OrderNotes != null && orderdetails.OrderNotes.Count() > 0)
{
var success = _orderServices.ProcessOrderNotes(orderid, orderdetails.OrderNotes);
}
var prvid = _orderServices.ProcessOrderProvider(orderid, orderdetails.ReferringProvider);
var shpngid = _orderServices.ProcessOrderShipping(orderid, orderdetails.ShippingInfo);
var payerid = _orderServices.ProcessOrderPayer(orderid, orderdetails.Insurances);
return Request.CreateResponse(HttpStatusCode.OK, orderid);
}
我没有从WebAPI 2回复WebAPI 1回复。我在网上看了几篇关于死锁情况的文章。但是,我无法解决我的情况下的僵局。我在这做错了什么?我正确使用async
和await
吗?
要在上面建立我的评论,修改你的代码,这样你就不会阻止async
操作。此外,_orderServices.GetOrderDetails(oid);
听起来像一个命中数据库的方法,因此应该是await _orderServices.GetOrderDetailsAsync(oid);
,其中你使用任何async
api可用于您的数据库访问。
[HttpGet()]
public async Task<HttpResponseMessage> Get([FromUri]int oid) {
var orderdetails = _orderServices.GetOrderDetails(oid);
var xml = new XmlMediaTypeFormatter();
xml.UseXmlSerializer = true;
string orderdetailsser = Serialize(xml, orderdetails);
var result = await PostXml(orderdetailsser);
return Request.CreateResponse(HttpStatusCode.OK);
}
public static async Task<HttpResponseMessage> PostXml(string str) {
using(var client = new HttpClient()) {
client.BaseAddress = new Uri("http://localhost:58285/");
var content = new StringContent(str);
var response = await client.PostAsync("api/default/ReceiveXml", content).ConfigureAwait(false);
return response;
}
}
[HttpPost()]
public async Task<HttpResponseMessage> ReceiveXml(HttpRequestMessage request) {
var xmlDoc = new XmlDocument();
xmlDoc.Load(await request.Content.ReadAsStreamAsync());
xmlDoc.Save(@"C:\xmlfiles\xml2.xml");
XmlSerializer deserializer = new XmlSerializer(typeof(OrderInfoModel));
TextReader reader = new StreamReader(@"C:\xmlfiles\xml2.xml");
object obj = deserializer.Deserialize(reader);
OrderInfoModel orderdetails = (OrderInfoModel)obj;
reader.Close();
var patient_id = _patientServices.ProcessPatient(orderdetails.Patient, orderdetails.OrderInfo);
var orderid = _orderServices.ProcessOrder(orderdetails.Patient, orderdetails.OrderInfo, patient_id);
if(orderdetails.OrderNotes != null && orderdetails.OrderNotes.Count() > 0) {
var success = _orderServices.ProcessOrderNotes(orderid, orderdetails.OrderNotes);
}
var prvid = _orderServices.ProcessOrderProvider(orderid, orderdetails.ReferringProvider);
var shpngid = _orderServices.ProcessOrderShipping(orderid, orderdetails.ShippingInfo);
var payerid = _orderServices.ProcessOrderPayer(orderid, orderdetails.Insurances);
return Request.CreateResponse(HttpStatusCode.OK, orderid);
}
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