HOWTO: Send a Message Using CDO with Visual J++

• Collaboration Data Objects (CDO), version 1.21
• Microsoft Visual J++, version 6.0

SUMMARY

This article contains sample code that demonstrates how to use CDO with Microsoft Visual J++ to send e-mail messages.

The following list summarizes what the sample code does:

1. Creates a CDO session and logon.



2. Opens the Outbox folder.



3. Creates a new message in Outbox.



4. Creates a recipient for the new message.



5. Creates an attachment to the new message.



6. Sends the message.

MORE INFORMATION

Use the following steps to build and run this Visual J++ example:

1. Start Visual J++ 6.0. Create a new Console Application project.



2. In the Project Explorer window, open your Project tree and double-click the Class1.java file created for you.



3. From the Project menu, click Add COM Wrapper, make a reference to "Microsoft CDO 1.21 Library," and click OK.



4. Ignore the created code and replace it with the following code. Make the necessary changes whenever you see TODO in the code.
   
   

Sample Code

 
import com.ms.com.*; 
import cdo.*;
 
public class Class1
{ 
  public static void main(String args[]) 
  { 
    try
    {
	// Create a session
	_Session session = (_Session) new Session(); 
 
	// Create a Variant null parameter for later use
	Variant nullParam = new Variant(); 
	nullParam.noParam(); 
		
	// Create a profile and logon
	Variant profileName = new Variant();
        //TODO: change to your profile
	profileName.putString( "<ProfileName>" ); 
	session.Logon( profileName, nullParam, nullParam, nullParam, 
		                    nullParam, nullParam, nullParam );
   
	// Go to the Outbox folder
	Folder outbox = (Folder) session.getOutbox().getDispatch(); 
		
	// Get the Messages collection
	Messages messages = (Messages) outbox.getMessages().getDispatch(); 
   
	// Create a new message in the outbox. 
	Message newMsg = (Message) messages.Add( nullParam, nullParam, 
		                   nullParam, nullParam ).getDispatch(); 
 
	// Set the subject of the new message. 
	Variant subject = new Variant(); 
	subject.putString( "This is a message from Java!" ); 
	newMsg.setSubject( subject );
 
	// Set the text(body)of the new message. 
	Variant text = new Variant(); 
	text.putString( "How are you doing today?" ); 
	newMsg.setText( text ); 
		
	// Get the Attachments collection.
        Attachments attachments =
	(Attachments)newMsg.getAttachments().getDispatch();
		
	// Create a new attachment
	Attachment attachment = (Attachment)attachments.Add(nullParam, 
			nullParam, nullParam, nullParam ).getDispatch();
		
	// Set properties for attachment
	Variant name = new Variant();
	name.putString( "Autoexec.bat" );
	attachment.setName( name );
		
	Variant source = new Variant();
        // TODO: you may change the file path
	source.putString( "C:\\Autoexec.bat" );
	attachment.setSource( source );
		
	Variant position = new Variant();
	position.putInt( 1 );
	attachment.setPosition( position );
		
	Variant attType = new Variant();
	attType.putFloat(1); //CdoFileData
	attachment.setType( attType );

	// Get the Recipients collection.
	Recipients recipients = 
        (Recipients)newMsg.getRecipients().getDispatch(); 
 
	// Create a new recipient. 
	Recipient recipient = (Recipient) recipients.Add( nullParam, 
			nullParam, nullParam, nullParam ).getDispatch(); 
 
	// Set the name to the new recipient. 
	Variant recipName = new Variant();
        //TODO: change to your recipient's name
	recipName.putString( "<MyName>" ); 
	recipient.setName( recipName ); 
 
	// Set the type on the new recipient. 
	Variant type = new Variant(); 
	type.putInt( 1 );	// "To" 
	recipient.setType( type ); 
 
	// Resolve the new recipient. 
	Variant showDialog = new Variant(); 
	showDialog.putBoolean( true ); 
	recipient.Resolve( showDialog ); 
 		
	// Send the new message. 
	newMsg.Send( nullParam, nullParam, nullParam ); 
   
	// Finally, logoff
	session.Logoff(); 
		
	// Clean up
	session = null;
	outbox = null;
	messages = null;
	newMsg = null;
        recipients = null;
	recipient = null;
	attachment = null;		
    } 
    catch( Exception e ) 
    { 
        e.printStackTrace(); 
    } 
    System.out.println( "Mail is sent and project terminates!" ); 
  } 
}  

Additional query words: kbMsg kbcdo kbCDO121 kbJava

Keywords          : kbCDO121 kbJava kbMsg kbVJ600 kbGrpMsg 
Version           : WINDOWS:1.21,6.0
Platform          : WINDOWS 
Issue type        : kbhowto 

Last Reviewed: April 7, 1999