我正在创建ASP.Net MVC WebApi以将我的数据共享给银行。在这方面,我在测试WebApi时创建了SQL View位,它给出了'System.OutOfMemoryException'错误,因为我在SQL View中拥有100万条记录。我的代码如下:这是我的控制器
public class InvoiceController : ApiController
{
public IEnumerable<VBank_invoice> Get()
{
using (kmcEntities entities = new kmcEntities())
{
return entities.VBank_invoice.ToList();
}
}
public VBank_invoice Get(string consumer)
{
using (kmcEntities entities = new kmcEntities())
{
return entities.VBank_invoice.FirstOrDefault(e => e.consumer_no == consumer);
}
}
}
我的SQL视图类
public partial class VBank_invoice
{
public int sno { get; set; }
public string consumer_no { get; set; }
public string consumer_name { get; set; }
public string consumer_address { get; set; }
public string billing_month { get; set; }
public Nullable<decimal> current_Charges { get; set; }
public Nullable<decimal> outstanding_Arrears { get; set; }
public Nullable<decimal> Arrears_15 { get; set; }
public Nullable<decimal> part_payment_arrears { get; set; }
public string billing_period_code { get; set; }
public string consumer_checkdigit { get; set; }
public Nullable<System.DateTime> due_date { get; set; }
}
这是我的Model.Context.cs文件
public partial class kmcEntities : DbContext
{
public kmcEntities()
: base("name=kmcEntities")
{
}
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
throw new UnintentionalCodeFirstException();
}
public virtual DbSet<VBank_invoice> VBank_invoice { get; set; }
}
我相信您需要使用选择查询来序列化对象模型。
public class InvoiceController : ApiController
{
public IEnumerable<VBank_invoice> Get()
{
using (kmcEntities entities = new kmcEntities())
{
return entities.VBank_invoice.select(m => new {
m.sno, m.consumer_no,m.consumer_name, m.consumer_address,
m.billing_month, m.current_Charges, m.outstanding_Arrears,
m.Arrears_15, m.part_payment_arrears, m.billing_period_code,
m.consumer_checkdigit, m.due_date }).ToList();
}
}
}