C# 使用web服务获取对象列表

未能添加服务。服务元数据可能无法访问。确保您的服务正在运行并公开元数据

我找了很久，但还是没有找到任何有用的东西。我哪里错了？我真的不知道该怎么办。我把所有细节写在下面。我试过了，但没有成功

我的代码：

[ServiceContract]

    public interface IUsersService
    {
        [OperationContract]
        void DoWork();

        [OperationContract]
        List<User> GetUsers();
    }




 public class UsersService : IUsersService
    {
        public void DoWork()
        {

        }

        public List<User> GetUsers()
        {
            var users=new List<User>();
            var sqlConnection =
                new SqlConnection(conString);
            var sqlDataAdapter=new SqlDataAdapter("select * from users",sqlConnection);

            var dt = new DataTable();

            sqlDataAdapter.Fill(dt);

            foreach (DataRow dataRow in dt.Rows)
            {
                users.Add(new User(dataRow["Name"].ToString()));
            }

            return users;
        }
    }

    public class User
    {
        public string UserName { get; set; }

        public User(string name)
        {
            UserName = name;
        }
    }

---

可能是您缺少服务中的主机：

 <services>
      <service name="WcfServiceLibrary1.UsersService">
        <host>
          <baseAddresses>
            <add baseAddress = "http://localhost:8733/Design_Time_Addresses/WcfServiceLibrary1/UsersService/" />
          </baseAddresses>
        </host>
....
  </service>
    </services>

---

通常，如果您在IIS中托管服务，则不需要定义基址，因为IIS会处理此问题

尽管来自错误消息的建议可能有效，但请注意，该解决方案适用于遗留Web服务。对于WCF，您不需要该设置

有关更多详细信息，请参阅本CodeProject文章。

对于您的问题，请检查示例代码，特别是app.config处理相对url并激活服务

> Error: Cannot obtain Metadata from
> http://lo cal host:31842/UsersService.svc If this is a Windows (R)
> Communication Foundation service to which you have access, please
> check that you have enabled metadata publishing at the specified
> address.  For help enabling metadata publishing, please refer to the
> MSDN documentation at
> http://go.microsoft.com/fwlink/?LinkId=65455.WS-Metadata Exchange
> Error    URI: http://localhost:31842/UsersService.svc    Metadata
> contains a reference that cannot be resolved:
> 'http://localhost:31842/UsersService.svc'.    Content Type
> application/soap+xml; charset=utf-8 was not supported by service
> http://localhost:31842/UsersService.svc.  The client and service
> bindings may be mismatched.    The remote server returned an error:
> (415) Cannot process the message because the content type
> 'application/soap+xml; charset=utf-8' was not the expected type
> 'text/xml; charset=utf-8'...

 <services>
      <service name="WcfServiceLibrary1.UsersService">
        <host>
          <baseAddresses>
            <add baseAddress = "http://localhost:8733/Design_Time_Addresses/WcfServiceLibrary1/UsersService/" />
          </baseAddresses>
        </host>
....
  </service>
    </services>