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我有一個應用程序使用WebServices向客戶端發送數據庫記錄（作爲數組），但即使只發送1000條記錄，它似乎很慢。c＃WebService壓縮
服務器在IIS 7上運行，客戶端是WPF應用程序。基本上，我如何加快速度。我是否必須編寫自定義壓縮類或代碼？在IIS服務器和/或客戶端配置文件中只有一個設置是打開/關閉的？現在需要大約4-7秒才能返回這1000條記錄。因此，當我們將可能返回10,000到40,000條記錄的表綁定在一起時，我不希望用戶在那裏等待數據等待幾分鐘。
下面的代碼的一個例子：
Foo.svc：
namespace Foo.Server
{
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall, ConcurrencyMode = ConcurrencyMode.Multiple)]
public sealed class FooService : IFoo
{
public SelectRecordsResponse SelectRecords(SelectRecordsRequest request)
{
//I tested to ensure that this isn't my bottleneck
FooBar[] records = ...; //Stores 1000 records
return new SelectRecordsResponse(records);
}
}
}
FooCommon.cs：
namespace Foo
{
[ServiceContract(Namespace = "http://www.company.com/Services/Foo", ConfigurationName = "IFoo")]
[ServiceKnownType(typeof(AbstractEntity))]
[XmlSerializerFormat(SupportFaults = true, Style = OperationFormatStyle.Document, Use = OperationFormatUse.Literal)]
public interface IFoo
{
[OperationContract(Action = "http://www.company.com/Services/Foo/SelectRecords",
ReplyAction = "http://www.company.com/Services/Foo/SelectRecordsReply",
Name = "SelectRecords")]
[ServiceKnownType(typeof(FooBar))]
[return: MessageParameter(Name = "Response")]
SelectRecordsResponse SelectRecords([MessageParameter(Name = "Request")]SelectRecordsRequest request);
}
[MessageContract(WrapperName = "SelectRecordsRequest", WrapperNamespace = "http://www.company.com/Services/Foo/", IsWrapped = true)]
public sealed class SelectRecordsRequest
{
public SelectRecordsRequest()
{
}
}
[MessageContract(WrapperName = "SelectRecordsResponse", WrapperNamespace = "http://www.company.com/Services/Foo/", IsWrapped = true)]
public sealed class SelectRecordsResponse
{
public SelectRecordsResponse()
{
Init();
}
public SelectRecordsResponse(FooBar[] records = null)
{
Init(records);
}
private void Init(FooBar[] records = null)
{
Records = records ?? new FooBar[0];
}
[MessageBodyMember(Namespace = "http://www.company.com/Services/Foo/", Order = 0, Name = "Records")]
[XmlArray(ElementName = "SelectRecordsArray", Form = XmlSchemaForm.Qualified)]
[XmlArrayItem(typeof(FooBar), ElementName = "SelectRecordsFooBar", Form = XmlSchemaForm.Qualified, IsNullable = true)]
private FooBar[] Records { get; set; }
}
}
FooClient.cs：
namespace Foo.Client
{
public interface IFooChannel : IFoo, IClientChannel
{
}
public sealed class FooClient : ClientBase<IFoo>, IFoo
{
public FooClient(String endpointConfigurationName) :
base(endpointConfigurationName)
{
}
public FooBar[] SelectRecords()
{
SelectRecordsRequest request = new SelectRecordsRequest();
SelectRecordsResponse response = ((IFoo)(Client)).SelectRecords(request);
return response.Records;
}
SelectRecordsResponse IFoo.SelectRecords(SelectRecordsRequest request)
{
return Channel.SelectRecords(request);
}
}
}
如果查詢向客戶端返回40000條記錄，則查詢很可能是錯誤的。在將結果返回給客戶端之前，可能應該對結果進行彙總或過濾。 – 2010-11-03 15:15:32
你應該實現「分頁」。你永遠無法*一舉返回40,000條記錄。 – 2010-11-03 15:41:32
我確實正在過濾和分頁，但有一些客戶希望每個記錄一次在數據網格中可見。無論哪種方式，100個記錄或40,000我仍然需要實施某種壓縮。 – 2010-11-03 15:50:19