Smack 实现的Pub/Sub

来源：互联网发布：大数据职业资格证书编辑：程序博客网时间：2024/05/22 03:07

Smack提供了一套发布订阅消息的功能API。代码如下：

发布：

package com.bis.pub;import org.jivesoftware.smack.XMPPConnection;import org.jivesoftware.smackx.pubsub.LeafNode;import org.jivesoftware.smackx.pubsub.PayloadItem;import org.jivesoftware.smackx.pubsub.PubSubManager;import org.jivesoftware.smackx.pubsub.SimplePayload;public class XmppPubsub_Publisher {private static XMPPConnection connection = new XMPPConnection("wang-think");private static String USRE_NAME = "t1";private static String PASSWORD = "1";static{try {connection.connect();connection.login(USRE_NAME,PASSWORD);} catch (Exception e) {e.printStackTrace();}}    public static void main(String[] args)throws Exception{        try{        PubSubManager manager = new PubSubManager(connection);            String nodeId = "zyf_test2";                        LeafNode myNode = null;            try {myNode = manager.getNode(nodeId);} catch (Exception e) {e.printStackTrace();}            if(myNode == null){            myNode = manager.createNode(nodeId);            }                        String msg = "fsadfasdfsadfasdfd---";                        SimplePayload payload = new SimplePayload("message","pubsub:test:message", "<message xmlns='pubsub:test:message'><body>"+msg+"</body></message>");            PayloadItem<SimplePayload> item = new PayloadItem<SimplePayload>("5", payload);            myNode.publish(item);            System.out.println("-----publish-----------");        }        catch(Exception E)        {E.printStackTrace();}            }}

package com.bis.pub;import org.jivesoftware.smack.XMPPConnection;import org.jivesoftware.smackx.pubsub.ItemPublishEvent;import org.jivesoftware.smackx.pubsub.Node;import org.jivesoftware.smackx.pubsub.PayloadItem;import org.jivesoftware.smackx.pubsub.PubSubManager;import org.jivesoftware.smackx.pubsub.listener.ItemEventListener;public class XmppPubsub_Reciever {private static XMPPConnection connection = new XMPPConnection("wang-think");private static String USRE_NAME = "t2";private static String PASSWORD = "1";static {try {connection.connect();connection.login(USRE_NAME, PASSWORD);} catch (Exception e) {e.printStackTrace();}}public static void main(String[] args) throws Exception {String nodeId = "zyf_test2";PubSubManager manager = new PubSubManager(connection);Node eventNode = manager.getNode(nodeId);eventNode.addItemEventListener(new ItemEventListener<PayloadItem>() {public void handlePublishedItems(ItemPublishEvent evt) {for (Object obj : evt.getItems()) {PayloadItem item = (PayloadItem) obj;System.out.println("--:Payload=" + item.getPayload().toString());}}});eventNode.subscribe(connection.getUser());while(true);}}