生存客户端调用代码不一样，使用工具SvcUtil.exe 与 VS中"添加服务引用",导致调用服务失败

Question

服务搭建成功，可以正常运行

1、然后使用SvcUtil.exe生存客户端调用代码，调用服务器失败，无法进入服务端的方法中，我断点调试来。

2、使用VS中"添加服务引用"就可以正常调用到服务端的方法，断点也进去了。

经过分析，发现使用SvcUtil与添加服务引用    生存的代码不一样，不知道为什么。

跟下面这位朋友的一样

https://social.msdn.microsoft.com/Forums/zh-CN/54c79232-9dc3-45fa-baf3-be04cd1f3a79/wcf-?forum=wcfzhchs

不知道是我不会用SvcUtil工具？还是vs的bug呀？

Answer 1

你好，

能给个详细的错误信息么？

我简单的测试了一下, 我用SvcUtil.exe 生成代理类和配置文件后，能够在客户端正常调用。

在用SvcUtil.exe 工具的时候，你有没有把output.config 文件重命名成 App.config.

其次通过添加服务引用生成的代码和使用SvcUtil.exe 确实会有一些不同。

 

Answer 2

您好，非常感谢您的热心回答，

您可以自定义一个request实体类，比如：

 [DataContract(Name = "DbRequest")]
    public sealed class DbRequest
    {
        [DataMember(Name = "Name", Order = 1)]
        public string Name { get; set; }

        [DataMember(Name = "SDType", Order = 2)]
        public SqlDbType SDType { get; set; }  //System.Data.SqlDbType命名空间下的枚举
    }

    [ServiceContract(Name = "IService")]
    public interface IService
    {
        [OperationContract(Name = "GetData")]
        string GetData(DbRequest info);
    }

    [ServiceBehavior(Name = "DbService", ConcurrencyMode = ConcurrencyMode.Multiple, InstanceContextMode = InstanceContextMode.PerCall)]
    public class Service : IService
    {

        #region IService 成员

        public string GetData(DbRequest info)
        {
            //do something
            return info.Name;
        }

        #endregion
    }

使用SvcUtil.exe手动生成代码如下：（不正确的，它重新创建了SqlDbType枚举，而是没有使用System.Data.SqlDbType的）

//------------------------------------------------------------------------------
// <auto-generated>
//     此代码由工具生成。
//     运行时版本:4.0.30319.34011
//
//     对此文件的更改可能会导致不正确的行为，并且如果
//     重新生成代码，这些更改将会丢失。
// </auto-generated>
//------------------------------------------------------------------------------

namespace SystemService.Library
{
    using System.Runtime.Serialization;
    
    
    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Runtime.Serialization", "4.0.0.0")]
    [System.Runtime.Serialization.DataContractAttribute(Name="DbRequest", Namespace="http://schemas.datacontract.org/2004/07/SystemService.Library")]
    public partial class DbRequest : object, System.Runtime.Serialization.IExtensibleDataObject
    {
        
        private System.Runtime.Serialization.ExtensionDataObject extensionDataField;
        
        private string NameField;
        
        private System.Data.SqlDbType SDTypeField;
        
        public System.Runtime.Serialization.ExtensionDataObject ExtensionData
        {
            get
            {
                return this.extensionDataField;
            }
            set
            {
                this.extensionDataField = value;
            }
        }
        
        [System.Runtime.Serialization.DataMemberAttribute()]
        public string Name
        {
            get
            {
                return this.NameField;
            }
            set
            {
                this.NameField = value;
            }
        }
        
        [System.Runtime.Serialization.DataMemberAttribute()]
        public System.Data.SqlDbType SDType
        {
            get
            {
                return this.SDTypeField;
            }
            set
            {
                this.SDTypeField = value;
            }
        }
    }
}
namespace System.Data
{
    using System.Runtime.Serialization;
    
    
    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Runtime.Serialization", "4.0.0.0")]
    [System.Runtime.Serialization.DataContractAttribute(Name="SqlDbType", Namespace="http://schemas.datacontract.org/2004/07/System.Data")]
    public enum SqlDbType : int
    {
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        BigInt = 0,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Binary = 1,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Bit = 2,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Char = 3,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        DateTime = 4,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Decimal = 5,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Float = 6,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Image = 7,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Int = 8,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Money = 9,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        NChar = 10,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        NText = 11,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        NVarChar = 12,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Real = 13,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        UniqueIdentifier = 14,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        SmallDateTime = 15,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        SmallInt = 16,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        SmallMoney = 17,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Text = 18,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Timestamp = 19,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        TinyInt = 20,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        VarBinary = 21,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        VarChar = 22,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Variant = 23,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Xml = 25,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Udt = 29,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Structured = 30,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Date = 31,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        Time = 32,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        DateTime2 = 33,
        
        [System.Runtime.Serialization.EnumMemberAttribute()]
        DateTimeOffset = 34,
    }
}


[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
[System.ServiceModel.ServiceContractAttribute(ConfigurationName="IService")]
public interface IService
{
    
    [System.ServiceModel.OperationContractAttribute(Action="http://tempuri.org/IService/GetData", ReplyAction="http://tempuri.org/IService/GetDataResponse")]
    string GetData(SystemService.Library.DbRequest info);
    
    [System.ServiceModel.OperationContractAttribute(Action="http://tempuri.org/IService/GetData", ReplyAction="http://tempuri.org/IService/GetDataResponse")]
    System.Threading.Tasks.Task<string> GetDataAsync(SystemService.Library.DbRequest info);
}

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
public interface IServiceChannel : IService, System.ServiceModel.IClientChannel
{
}

[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
public partial class ServiceClient : System.ServiceModel.ClientBase<IService>, IService
{
    
    public ServiceClient()
    {
    }
    
    public ServiceClient(string endpointConfigurationName) : 
            base(endpointConfigurationName)
    {
    }
    
    public ServiceClient(string endpointConfigurationName, string remoteAddress) : 
            base(endpointConfigurationName, remoteAddress)
    {
    }
    
    public ServiceClient(string endpointConfigurationName, System.ServiceModel.EndpointAddress remoteAddress) : 
            base(endpointConfigurationName, remoteAddress)
    {
    }
    
    public ServiceClient(System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress) : 
            base(binding, remoteAddress)
    {
    }
    
    public string GetData(SystemService.Library.DbRequest info)
    {
        return base.Channel.GetData(info);
    }
    
    public System.Threading.Tasks.Task<string> GetDataAsync(SystemService.Library.DbRequest info)
    {
        return base.Channel.GetDataAsync(info);
    }
}

而是用VS--右键--添加服务引用，就是使用的System.Data.SqlDbType枚举   ：如下（太多了，我就不全部贴上来了）

Reference.cs文件

//------------------------------------------------------------------------------
// <auto-generated>
//     此代码由工具生成。
//     运行时版本:4.0.30319.34011
//
//     对此文件的更改可能会导致不正确的行为，并且如果
//     重新生成代码，这些更改将会丢失。
// </auto-generated>
//------------------------------------------------------------------------------

namespace ConsoleApplication2.ServiceReference1 {
    
    
    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
    [System.ServiceModel.ServiceContractAttribute(ConfigurationName="ServiceReference1.IService")]
    public interface IService {
        
        [System.ServiceModel.OperationContractAttribute(Action="http://tempuri.org/IService/GetData", ReplyAction="http://tempuri.org/IService/GetDataResponse")]
        string GetData(SystemService.Library.DbRequest info);
    }
    
    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
    public interface IServiceChannel : ConsoleApplication2.ServiceReference1.IService, System.ServiceModel.IClientChannel {
    }
    
    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
    public partial class ServiceClient : System.ServiceModel.ClientBase<ConsoleApplication2.ServiceReference1.IService>, ConsoleApplication2.ServiceReference1.IService {
        
        public ServiceClient() {
        }
        
        public ServiceClient(string endpointConfigurationName) : 
                base(endpointConfigurationName) {
        }
        
        public ServiceClient(string endpointConfigurationName, string remoteAddress) : 
                base(endpointConfigurationName, remoteAddress) {
        }
        
        public ServiceClient(string endpointConfigurationName, System.ServiceModel.EndpointAddress remoteAddress) : 
                base(endpointConfigurationName, remoteAddress) {
        }
        
        public ServiceClient(System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress) : 
                base(binding, remoteAddress) {
        }
        
        public string GetData(SystemService.Library.DbRequest info) {
            return base.Channel.GetData(info);
        }
    }
}

不知道是我不会用SvcUtil工具？还是vs的bug呀？

Answer 3

非常感谢版主，问题我已经找到了，谢谢您。

Answer 4

您好，

能分享一下您的解决方案么？

非常感谢。

Answer 5

您好，

解决办法：是Svcutil.exe 引用所需要的类库即可以。

Answer 6

您好，

感谢您的分享和支持：）

Best Regards,

Grady