2.WCF 同步 异步

2.WCF 同步 异步

using System.ServiceModel;


namespace Rhythmk.Contracts
{
    [ServiceContract(Namespace="http://wwww.wangkun.com")]
  
    public  interface ICalculate
    {
        //通过 IsOneWay 实现无返回 异步调用
        [OperationContract( IsOneWay=true)]
        void IsOneWay();

        [OperationContract]
        void IsReturnWay();
          
   }
}

-----------------------------------------------------

using Rhythmk.Contracts;

namespace Rhythmk.Services
{
    /// <summary>
    /// 计算器
    /// </summary>
    public class Calculate:ICalculate
    {
 

        #region ICalculate 成员

        public void IsOneWay()
        {
            throw new Exception(" 异常方法:IsOneWay ");
        }

        public void IsReturnWay()
        {
            throw new Exception("异常方法:IsReturnWay");

        }

        #endregion
    }
}



----------------------------------

 protected void btn_Click(object sender, EventArgs e)
        {
            ChannelFactory<ICalculate> calculatorChannelFactory = new ChannelFactory<ICalculate>("CalculateEndPoint");
            ICalculate proxy = calculatorChannelFactory.CreateChannel();

            try
            {
                proxy.IsOneWay();
                Utitl.Alert("正常调用");
            }
            catch (Exception ex) {
                Utitl.Alert(ex.ToString());
            }
        }

        protected void btn2_Click(object sender, EventArgs e)
        {
            ChannelFactory<ICalculate> calculatorChannelFactory = new ChannelFactory<ICalculate>("CalculateEndPoint");
            ICalculate proxy = calculatorChannelFactory.CreateChannel();

            try
            {
                proxy.IsReturnWay();
                Utitl.Alert("正常调用");
            }
            catch (Exception ex)
            {
                Utitl.Alert(ex.ToString());
            }
        }

通过设置：       

//通过 IsOneWay 实现无返回 异步调用
        [OperationContract( IsOneWay=true)]

IsOneWay 方法能正常调用，客户端不接收异常。

IsReturnWay 则将异常传回客户端，客户端抛出异常