remotetimeclient.java

网络书店的设计与实现 网络书店的设计与实现

//: c15:corba:RemoteTimeClient.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
import remotetime.*;
import org.omg.CosNaming.*;
import org.omg.CORBA.*;

public class RemoteTimeClient {
  public static void main(String[] args) {
    try {
      // ORB creation and initialization:
      ORB orb = ORB.init(args, null);
      // Get the root naming context:
      org.omg.CORBA.Object objRef = 
        orb.resolve_initial_references(
          "NameService");
      NamingContext ncRef = 
        NamingContextHelper.narrow(objRef);
      // Get (resolve) the stringified object 
      // reference for the time server:
      NameComponent nc = 
        new NameComponent("ExactTime", "");
      NameComponent[] path = { nc };
      ExactTime timeObjRef = 
        ExactTimeHelper.narrow(
          ncRef.resolve(path));
      // Make requests to the server object:
      String exactTime = timeObjRef.getTime();
      System.out.println(exactTime);
    } catch (Exception e) {
      System.out.println(
         "Remote Time server error: " + e);
      e.printStackTrace(System.out);
    }
  }
} ///:~