用ASP.NET调用Tuxedo
由于项目原因,需要在ASP.NET网页上显示电力用户的电费情况,电力公司那边取用户电费的接口是Tuxedo的,这在应用程序下是很容易调用的,可是把它搬到ASP.NET中,情况就不同了,在IIS环境下,调用Tuxedo始终不成功,我想,可能是安全性上的问题,也有可能是Tuxedo本身不能在IIS宿主中执行的缘故,所以,只好另外开辟一条路。
因为可以在应用程序中执行Tuxedo,所以,我想用Remoting在IIS与Tuxedo服务之间架一个代理,让ASP.NET去调用Remoting,再由Remoting去调用Tuxedo,这样一定是可行的。
首先,写一个公共类库,里面有代理执行的接口,以及一个代理执行类厂类:
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namespace TuxedoObject
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{
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public interface ITuxedoObject
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{
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bool ExecuteTuxedo(string[] EnvList, string Service, string Param, out string Output);
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}
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[Serializable]
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public class TuxedoFac : MarshalByRefObject
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{
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public static Type TuxedoType;
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public ITuxedoObject GetTuxedoObject()
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{
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return (ITuxedoObject)TuxedoType.InvokeMember("", System.Reflection.BindingFlags.CreateInstance, null, null, null);
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}
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}
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}
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PS:之所以把代理执行写成接口,是因为我不喜欢把具体实现让Remoting客户端看见
接着写一个Remoting服务器,我选择用Windows服务的形式提供,服务器里包含代理执行的接口实现以及服务类:
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namespace TuxedoRemoting
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{
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[Serializable]
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public class Tuxedo : MarshalByRefObject, TuxedoObject.ITuxedoObject
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{
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public Tuxedo()
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{
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}
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public bool ExecuteTuxedo(string[] EnvList, string Server, string Param, out string Output)
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{
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bool ret = false;
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try
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{
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foreach(string env in EnvList)
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Bea.Tuxedo.ATMI.Utils.tuxputenv(env);
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AppContext ac = AppContext.tpinit(null);
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TypedBuffer its = new TypedString(Param);
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TypedBuffer rts = new TypedString("");
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ac.tpcall(Server, its, ref rts, 0);
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Output = (rts as TypedString).GetString();
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ret = true;
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try
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{
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ac.tpterm();
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}
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catch
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{
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}
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}
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catch (Exception Err)
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{
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Output = "Tuxedo执行异常," + Err.Message;
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}
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return ret;
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}
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}
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public partial class TuxedoService : ServiceBase
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{
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public TuxedoService()
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{
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InitializeComponent();
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}
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protected override void OnStart(string[] args)
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{
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TuxedoObject.TuxedoFac.TuxedoType = typeof(Tuxedo);
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TcpChannel channel = new TcpChannel(18000);
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ChannelServices.RegisterChannel(channel, false);
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RemotingConfiguration.ApplicationName = "TuxedoRemoting";
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RemotingConfiguration.RegisterActivatedServiceType(typeof(TuxedoObject.TuxedoFac));
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}
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protected override void OnStop()
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{
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IChannel[] channels = ChannelServices.RegisteredChannels;
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foreach (IChannel channel in channels)
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{
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if (channel is TcpChannel)
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{
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TcpChannel ch = channel as TcpChannel;
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ch.StopListening(null);
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}
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ChannelServices.UnregisterChannel(channel);
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}
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}
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}
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}
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好了,下面该写ASP.NET了,我只给出部分调用方法,很容易:
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TcpChannel channel = new TcpChannel();
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ChannelServices.RegisterChannel(channel, false);
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object[] attrs = { new UrlAttribute("tcp://xxx.xxx.xxx.xxx:18000/TuxedoRemoting") };
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TuxedoFac tf = (TuxedoFac)Activator.CreateInstance(typeof(TuxedoFac), null, attrs);
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ITuxedoObject Tuxedo = tf.GetTuxedoObject();
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Tuxedo.ExecuteTuxedo(new string[] { TuxedoEnv }, Service, Param, out Output);

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