Example: Using message queues (part 2 of 3)

This source is an example of IBM® Toolbox for Java™ message queue.

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Use the following as an example for your program.

Note: Read the Code example disclaimer for important legal information.
//////////////////////////////////////////////////////////////////////////////////
//
// Example using the Message Queue function of the IBM Toolbox for Java
//
// This source is an example of IBM Toolbox for Java "Message Queue".
//
//////////////////////////////////////////////////////////////////////////////////

package examples;


import java.io.*;
import java.util.*;
import com.ibm.as400.access.*;

public class displayMessages extends Object
{

   public static void main(String[] parameters)
   {
      displayMessages me = new displayMessages();

      me.Main(parameters);

      System.exit(0);
   }

   void displayMessage()
   {
   }

   void Main(String[] parms)
   {
      try
      {
          AS400 system = new AS400();  Note 1 

          if (parms.length > 0)
            system.setSystemName(parms[0]);  Note 2 

      }
      catch (Exception e)
      {
         e.printStackTrace();
      }
   }
}
  1. A program uses the AS400 object to designate which server to connect to. With one exception, all programs that need resources from a server must have an AS400 object. The exception is JDBC. If your program uses JDBC, then the IBM Toolbox for Java JDBC driver creates the AS400 object for the program.
  2. This program assumes the first command line parameter is the name of the server. If a parameter is passed to the program, the setSystemName method of the AS400 object is used to set the system name. The AS400 object also needs server sign-on information:
    • If the program is running on a workstation, the IBM Toolbox for Java program prompts the user for a user ID and password. Note: If a system name is not specified as a command line parameter, the AS400 object also prompts for the system name.
    • If the program is running on the IBM i JVM, then the user ID and password of the user running the Java program is used. In this case, the user does not specify a system name, but lets the system name default to the name of the system that the program is running on.

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