C# asp.net mvc 通過 HttpClient 訪問 Web_API

//MVC  具體方法

//API地址 通過 WebConfig配置
private static string apiAdds = ConfigurationManager.AppSettings["ApiAddress"];

//具體方法
public int AddSelectFlowerBll(string selectProduct, string productName, string productSum,int UserID)
        {
            try
            {
                //非空判斷
                if (!string.IsNullOrEmpty(selectProduct) && !string.IsNullOrEmpty(productName) &&
                    !string.IsNullOrEmpty(productSum))
                {
                    AssembleFlower aFlower = new AssembleFlower();
                    aFlower.Name = productName;
                    aFlower.PriceSum = Convert.ToInt32(productSum);
                    //添加人為1
                    aFlower.AssembleMan = UserID;
                    aFlower.AssembleTime = DateTime.Now;
                    aFlower.IsDel = 0;
                    List<AssembleMaterial> materialList = new List<AssembleMaterial>();
                    string[] productArry = selectProduct.Split(';');
                    for (int i = 0; i < productArry.Length - 1; i++)
                    {
                        string[] flowerArry = productArry[i].Split(',');
                        AssembleMaterial m = new AssembleMaterial();
                        m.MaterialID = Convert.ToInt32(flowerArry[0]);
                        m.MaterialCount = Convert.ToInt32(flowerArry[1]);
                        materialList.Add(m);
                        
                    }
                    string[] strArray = { JsonConvert.SerializeObject(aFlower), JsonConvert.SerializeObject(materialList) };

                    #region 向後臺提交數據
                    //創建HttpClient對象
                    Uri uri = new Uri(apiAdds);
                    HttpClient client = new HttpClient();
                    client.BaseAddress = uri;
                    client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
                    var jsonStr = JsonConvert.SerializeObject(strArray);
                    HttpContent cont = new StringContent(jsonStr);
                    cont.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                    var returnStr = "";
                    HttpResponseMessage resp = client.PostAsync("api/SelectFlower/AssembleAdd", cont).Result;//post提交數據,
                    if (resp.IsSuccessStatusCode)
                    {
                        returnStr = resp.Content.ReadAsStringAsync().Result;
                    }
                    #endregion

                    return Convert.ToInt32(JsonConvert.DeserializeObject(returnStr));
                }
                else
                {
                    //空值
                    return -1;
                }
            }
            catch
            {
                //發生錯誤
                return -1;
                throw;
            }
        }

//API

[RoutePrefix("api/SelectFlower")]
public class SelectFlowerController : ApiController
{
/// <summary>
/// 獲取自選花的類型
/// </summary>
/// <param name="FlowerType"></param>
/// <returns></returns>
[HttpGet]
[Route("GetSelectFlower")]
public DataTable GetSelectFlower(string FlowerType)
{
string sql = string.Format("select * from FlowerMaterial where IsDel=0 and FlowerType=@FlowerType");
SqlParameter parameter = new SqlParameter("@FlowerType", SqlDbType.VarChar, 200);
parameter.Value = FlowerType;
return DBHelperSQL.QueryDataTable(sql, parameter);
}

[HttpPost]
[Route("AssembleAdd")]
public string AssembleAdd([FromBody] dynamic jsonStr)
{
//將前臺傳過來的值轉化為數組
var data = JsonConvert.DeserializeObject<string[]>(jsonStr.ToString());
AssembleFlower aFlower = JsonConvert.DeserializeObject<AssembleFlower>(data[0]);
List<AssembleMaterial> MaterialList = JsonConvert.DeserializeObject<List<AssembleMaterial>>(data[1]);
List<DBHelperSQL.KeyValue> list=new List<DBHelperSQL.KeyValue>();
list.Add(new DBHelperSQL.KeyValue()
{
Key = "insert into AssembleFlower values(@Name,@PriceSum,@AssembleMan,@AssembleTime,0)",
Value = new SqlParameter[]
{
new SqlParameter("@Name",aFlower.Name),
new SqlParameter("@PriceSum",aFlower.PriceSum), 
new SqlParameter("@AssembleMan",aFlower.AssembleMan), 
new SqlParameter("@AssembleTime",aFlower.AssembleTime), 
}
});
foreach (var material in MaterialList)
{
list.Add(new DBHelperSQL.KeyValue()
{
Key = "insert into AssembleMaterial values(@MaterialID,@MaterialCount,(select top 1 ID from AssembleFlower order by ID desc))",
Value = new SqlParameter[]
{
new SqlParameter("@MaterialID",material.MaterialID),
new SqlParameter("@MaterialCount",material.MaterialCount)
}
});
}
list.Add(new DBHelperSQL.KeyValue()
{
Key = " insert into MyCar values(3,(select top 1 ID from AssembleFlower order by ID desc),1,@UserID,@CreateTime,0)",
Value = new SqlParameter[]
{
new SqlParameter("@UserID",aFlower.AssembleMan),
new SqlParameter("@CreateTime",DateTime.Now)
}
});
return DBHelperSQL.ExecuteSqlTranAndReturn(list).ToString();
}
}