[转载]我的基于WCF的SOA架构项目实战

http://www.cnblogs.com/datacool/archive/2011/07/13/wcfsoa.html

 

本人才疏学浅,在现在的项目中即是程序员又是架构设计组组长。在使用WCF技术前看了无数号称WCF实战博客,没有一篇是我想要的。不过也算学到些皮毛。在此谢过,对你们的善意分享和辛勤劳动表示万分的感谢。由于以前是在csdn写博客,到博客园发文算是第一次。还请各位高手跳过,但愿不会浪费各位的表情。这里先上几张图,后面再讲过程。

  • 解决方案截图

架构过程遇到的问题和解决方法。

1、要不要使用dto对象,要不要建立DTO层?

解决办法是巧妙的将实体对象和dto对象合并,这样少了转换的过程。感觉还行。

样本如下:

namespace RTLS.Entities
{
    [Serializable, DataContract(IsReference = true)]
    [KnownType(typeof(SysRolefunc))]
    public class SysRole
    {
        [DataMember]
        public virtual int Roleid { get; set; }
        [DataMember]
        public virtual string Rolename { get; set; }
        [DataMember]
        public virtual bool Active { get; set; }
        [DataMember]
        public virtual string Desc { get; set; }
        [DataMember]
        public virtual DateTime? Timestamp { get; set; }
        [DataMember]
        public virtual string Remark { get; set; }

        private IList<SysRolefunc> list;

        //一对多关系:角色(Role)有一个或多个角色功能(SysRolefunc)
        [DataMember]
        public virtual IList<SysRolefunc> RoleFuncs
        {
            get
            {
                if (list == null)
                {
                    list = new List<SysRolefunc>();
                }
                return list;
            }
            set
            {
                list = value;
            }
        }       
    }
}

using System;
using System.ServiceModel;
namespace RTLS.IServices
{
    [ServiceContract]
    public interface ISysRoleService
    {
        [OperationContract]
        bool AddSysRole(RTLS.Entities.SysRole role);
        [OperationContract]
        bool DeleteSysRole(RTLS.Entities.SysRole role);
        [OperationContract]
        System.Collections.Generic.IList<RTLS.Entities.SysRole> GetAll(bool isActive);
        [OperationContract]
        System.Collections.Generic.IList<RTLS.Entities.SysRole> GetPageResults(int curPageNo, int limit,
                                                                               string name, bool isActive,
                                                                               ref int totalCount);
        [OperationContract]
        System.Collections.Generic.IList<RTLS.Entities.SysRole> GetRoleByUserId(int userID);
        [OperationContract]
        bool ModifySysRole(RTLS.Entities.SysRole role);
    }
}

namespace RTLS.Services
{
    /// <summary>
    /// 系统角色服务类
    /// </summary>
    public class SysRoleService : ISysRoleService
    {
        private SysRoleBiz biz = new SysRoleBiz();
        public bool AddSysRole(Entities.SysRole role)
        {
            var result = biz.AddSysRole(role);
            return result.Success();
        }

        public bool DeleteSysRole(Entities.SysRole role)
        {
            return biz.DeleteSysRole(role);
        }

        public IList<Entities.SysRole> GetAll(bool isActive)
        {
            return biz.GetAll(isActive);
        }

        public IList<Entities.SysRole> GetPageResults(int curPageNo, int limit, string name, bool isActive, ref int totalCount)
        {
            return biz.GetPageResults(curPageNo,limit,name,isActive,ref totalCount);
        }

        public IList<Entities.SysRole> GetRoleByUserId(int userID)
        {
            return biz.GetRoleByUserId(userID);
        }

        public bool ModifySysRole(Entities.SysRole role)
        {
            return biz.ModifySysRole(role);
        }
    }
}

虽然说不推荐这样用,但是工期有限啊。没有使用Linq,所以要真是dto-->entity,entity-->entity转换来转换去的要死人的。因为这个原因曾经打算放弃使用WCF,让客户端直接引用BLL和Model层。后来发现这样合并了之后可以继续下去了,就这样做了。对错先暂且不论。

2、怎么调试和设置WCF参数?

当然是摸索了,跌倒,跌倒...爬起来,再来!上几张图:

 <service behaviorConfiguration="RTLS.Services.ServiceBehavior"
      name="RTLS.Services.SystemFunctionService">
        <endpoint address="net.tcp://192.168.1.123:9998/RTLS_SysFun_Svr" binding="netTcpBinding" bindingConfiguration="myNetTcpBinding"
          name="net" contract="RTLS.IServices.ISystemFunctionService" />
        <endpoint address="mex" binding="mexTcpBinding" bindingConfiguration=""
          name="mex" contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="net.tcp://192.168.1.123:9998/RTLS_SysFun_Svr" />
          </baseAddresses>
        </host>
      </service>
    </services>

3.一个Winnt服务如何host多个wcf服务?

        protected override void OnStart(string[] args)
        {
            if (serviceHostes.Count > 0) serviceHostes.Clear();
            var configuration = ConfigurationManager.OpenExeConfiguration(Assembly.GetEntryAssembly().Location);
            ServiceModelSectionGroup serviceModelSectionGroup = (ServiceModelSectionGroup)configuration.GetSectionGroup("system.serviceModel");
            // 开启每个服务
            foreach (ServiceElement serviceElement in serviceModelSectionGroup.Services.Services)
            {               
                var wcfServiceType = Assembly.Load("RTLS.Services").GetType(serviceElement.Name);
                var serviceHost = new ServiceHost(wcfServiceType);              
                serviceHostes.Add(serviceHost);
                serviceHost.Opened += delegate
                {
                    LogManager.WriteLog("Log", string.Format("{0}开始监听Uri为:{1}",
                    serviceElement.Name, serviceElement.Endpoints[0].Address.ToString()));
                };
                serviceHost.Open();               
            }           
        }

这个办法是在吉日大哥的通用权限组件里面看到的,这里对吉日大哥表示衷心的感谢!希望大伙尊重一下扎扎实实搞技术的人,我不是为了跟吉日大哥打广告。做人要懂得感恩!你技术牛,你鄙视我可以,我不羡慕你,也不一定要屌你。

4、怎样使用泛型工厂类来简化和重构代码?

这个正在尝试中,毕竟先完成了。

5、使用winnt服务的方式安装、发布容易吗?好用吗?

 /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        static void Main(string[] args)
        {
            if (args.Length > 0)
            {
                AssemblyInstaller myAssemblyInstaller;
                myAssemblyInstaller = new AssemblyInstaller();
                myAssemblyInstaller.UseNewContext = true;
                myAssemblyInstaller.Path = System.AppDomain.CurrentDomain.BaseDirectory + "\\" + System.AppDomain.CurrentDomain.FriendlyName;
                System.Collections.Hashtable mySavedState = new System.Collections.Hashtable();
                switch (args[0].ToLower())
                {
                    case "-i":
                        myAssemblyInstaller.Install(mySavedState);
                        myAssemblyInstaller.Commit(mySavedState);
                        myAssemblyInstaller.Dispose();
                        return;
                    case "-u":
                        myAssemblyInstaller.CommandLine = new string[1] { "/u" };
                        myAssemblyInstaller.Uninstall(null);
                        myAssemblyInstaller.Dispose();
                        return;
                    default:
                        System.Console.WriteLine("------参数说明------");
                        System.Console.WriteLine("- i 安装服务!");
                        System.Console.WriteLine("- u 卸载服务!");
                        System.Console.ReadKey();
                        return;
                }
            }

            ServiceBase[] ServicesToRun;
            ServicesToRun = new ServiceBase[]
            {
                new RtlsHostSvr()
            };
            ServiceBase.Run(ServicesToRun);

            想知道怎样调试服务程序像调试控制台程序一样吗? 把服务的OnStart方法标记为public new .默认是protected override.然后像下面那样取消那些注释,并注释上面  的代码就ok了。
            //var sHostSvr = new RtlsHostSvr();
            //sHostSvr.OnStart(null);
            //System.Threading.Thread.Sleep(10000);
            //sHostSvr.OnStop();
        }

 

posted @ 2011-11-08 16:07  火腿骑士  阅读(255)  评论(0编辑  收藏  举报