在smack中实现 Jabber 的远程调用

在smack中实现 Jabber-RPC (XEP-0009) 1.首先扩展一个IQ: 源代码来自: java代码为: http://cvs.codehaus.org/viewrep/groovy/groovy/modules/xmlrpc/src/main... import org.jivesoftware.smack.packet.IQ; /** * @author John Wilson * */ public class JabberRPC extends IQ { private final String xml; public JabberRPC(final String xml) { this.xml = "<query xmlns='jabber:iq:rpc'>/n" + xml + "/n</query>"; } public String getChildElementXML() { return this.xml; } } 2.扩展一个IQProvider. 源代码来自: http://cvs.codehaus.org/viewrep/groovy/groovy/modules/xmlrpc/src/main... java代码为: import org.jivesoftware.smack.packet.IQ; import org.jivesoftware.smack.provider.IQProvider; import org.jivesoftware.smack.util.StringUtils; import org.xmlpull.v1.XmlPullParser; /** * @author John Wilson * */ public class JabberRPCProvider implements IQProvider { public IQ parseIQ(final XmlPullParser parser) throws Exception { final StringBuffer buffer = new StringBuffer(); // skip the <query> tag by calling parser.next() while (true) { switch (parser.next()) { case XmlPullParser.TEXT: // We need to escape characters like & and < buffer.append(StringUtils.escapeForXML(parser.getText())); break; case XmlPullParser.START_TAG: buffer.append('<' + parser.getName() + '>'); break; case XmlPullParser.END_TAG: if ("query".equals(parser.getName())) { // don't save the </query> end tag return new JabberRPC(buffer.toString().trim()); } else { buffer.append("</" + parser.getName() + '>'); break; } default: } } } } 3.在smack中注册IQProvider . java代码为: org.jivesoftware.smack.provider.ProviderManager.addIQProvider("query", "jabber:iq:rpc", new JabberRPCProvider()); 4.smack客户端例子: try { XMPPConnection con = new XMPPConnection("127.0.0.1", 5222); con.login("username", "password"); //注册IQProvider org.jivesoftware.smack.provider.ProviderManager.addIQProvider( "query", "jabber:iq:rpc", new JabberRPCProvider()); // 监听所有的包 con.addPacketListener(new PacketListener() { public void processPacket(Packet packet) { if (packet instanceof org.jivesoftware.smack.packet.IQ) { org.jivesoftware.smack.packet.IQ iq = (org.jivesoftware.smack.packet.IQ) packet; System.out.println("rpc内容为 " + iq.getChildElementXML()); } } }, new org.jivesoftware.smack.filter.PacketFilter() { public boolean accept(Packet arg0) { return true; } }); con.createChat("xmlrpc.lizongbo.im").sendMessage("测试发送!"); JabberRPC jp = new JabberRPC("xmlrpc"); jp.setType(org.jivesoftware.smack.packet.IQ.Type.SET); jp.setTo("xmlrpc.lizongbo.im"); con.sendPacket(jp); Thread.sleep(25000); con.close(); } catch (Exception e) { e.printStackTrace(); } 5.服务端回应一个xmlrpc包: wildfire中通过插件进行响应: public void processPacket(Packet p) { if (p instanceof IQ) { IQ iq =(IQ)p; IQ niq=IQ.createResultIQ(iq); Element responseElement=niq.setChildElement("query", "jabber:iq:rpc"); try { java.util.Vector v=new java.util.Vector(); v.add("lizongbo xmpp"); v.add("jabber-rpc lizongbo"); v.add("xep-0009 lizongbo"); XmlRpcResponseProcessor xrrp=new XmlRpcResponseProcessor(); String rs= new String( xrrp.encodeResponse(v, "UTF-8")); org.dom4j.Document re=org.dom4j.DocumentHelper.parseText(rs); responseElement.add(re.getRootElement()); componentManager.sendPacket(this, niq); } catch (Exception e) { e.printStackTrace(); } } } 6.客户端输出结果为: rpc内容为 <query xmlns='jabber:iq:rpc'> <methodResponse><params><param><value><array><data><value>lizongbo xmpp</value><value>jabber-rpc lizongbo</value><value>xep-0009 lizongbo</value></data></array></value></param></params></methodResponse> </query> 本文转自：http://tw5566.javaeye.com/blog/725457