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60 lines
2.1 KiB
Markdown
60 lines
2.1 KiB
Markdown
Messaging using Chats
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=====================
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[Back](index.md)
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Sending messages back and forth is at the core of instant messaging. Although
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individual messages can be sent and received as packets, it's generally easier
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to treat the string of messages as a chat using the
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`org.jivesoftware.smack.chat2.Chat` class.
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Chat
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----
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A chat creates a new thread of messages (using a thread ID) between two users.
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The following code snippet demonstrates how to create a new Chat with a user
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and then send them a text message:
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```
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// Assume we've created an XMPPConnection name "connection"._
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ChatManager chatManager = ChatManager.getInstanceFor(connection);
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chatManager.addIncomingListener(new IncomingChatMessageListener() {
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@Override
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void newIncomingMessage(EntityBareJid from, Message message, Chat chat) {
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System.out.println("New message from " + from + ": " + message.getBody());
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}
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});
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EntityBareJid jid = JidCreate.entityBareFrom("jsmith@jivesoftware.com");
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Chat chat = chatManager.chatWith(jid);
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chat.send("Howdy!");
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}
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```
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The `Chat.send(String)` method is a convenience method that creates a
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Message object, sets the body using the String parameter, then sends the
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message. In the case that you wish to set additional values on a Message
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before sending it, use the
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`Chat.send(Message)` method, as in the following code snippet:
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```
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Message newMessage = new Message();
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newMessage.setBody("Howdy!");
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// Additional modifications to the message Stanza.
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JivePropertiesManager.addProperty(newMessage, "favoriteColor", "red");
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chat.send(newMessage);
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```
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You'll also notice in the example above that we specified an IncomingChatMessageListener.
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The listener is notified any time a new chat message arrives.
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The following code snippet uses the listener
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as a parrot-bot -- it echoes back everything the other user types.
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```
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// Assume a IncomingChatMessageListener we've setup with a ChatManager
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public void newIncomingMessage(EntityBareJid from, Message message, Chat chat) {
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// Send back the same text the other user sent us.
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chat.send(message.getBody());
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}
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```
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Copyright (C) Jive Software 2002-2008
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