XMPPFramework是一个OS X/iOS平台的开源项目，使用Objective-C实现了XMPP协议（RFC-3920），同时还提供了用于读写XML的工具，大大简化了基于XMPP的通信应用的开发。
1. 登录和好友上下线1.1XMPP中常用对象们 XMPPStream：xmpp基础服务类 XMPPRoster：好友列表类 XMPPRosterCoreDataStorage：好友列表（用户账号）在core data中的操作类 XMPPvCardCoreDataStorage：好友名片（昵称，签名，性别，年龄等信息）在core data中的操作类 XMPPvCardTemp：好友名片实体类，从数据库里取出来的都是它 xmppvCardAvatarModule：好友头像 XMPPReconnect：如果失去连接,自动重连 XMPPRoom：提供多用户聊天支持 XMPPPubSub：发布订阅
1.2登录操作，也就是连接xmpp服务器
- (void)connect { if (self.xmppStream == nil) { self.xmppStream = [[XMPPStream alloc] init]; [self.xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()]; } if (![self.xmppStream isConnected]) { NSString *username = [[NSUserDefaults standardUserDefaults] objectForKey:@"username"]; XMPPJID *jid = [XMPPJID jidWithUser:username domain:@"lizhen" resource:@"Ework"]; [self.xmppStream setMyJID:jid]; [self.xmppStream setHostName:@"10.4.125.113"]; NSError *error = nil; if (![self.xmppStream connect:&error]) { NSLog(@"Connect Error: %@", [[error userInfo] description]); } }}connect成功之后会依次调用XMPPStreamDelegate的方法，首先调用- (void)xmppStream:(XMPPStream *)sender socketDidConnect:(GCDAsyncSocket *)socket...然后- (void)xmppStreamDidConnect:(XMPPStream *)sender在该方法下面需要使用xmppStream 的authenticateWithPassword方法进行密码验证，成功的话会响应delegate的方法，就是下面这个- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender1.3上线实现 - (void)xmppStreamDidAuthenticate:(XMPPStream *)sender 委托方法- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender { XMPPPresence *presence = [XMPPPresence presenceWithType:@"available"]; [self.xmppStream sendElement:presence];}1.4退出并断开连接- (void)disconnect { XMPPPresence *presence = [XMPPPresence presenceWithType:@"unavailable"]; [self.xmppStream sendElement:presence]; [self.xmppStream disconnect];}1.5好友状态获取好友状态，通过实现 - (void)xmppStream:(XMPPStream *)sender didReceivePresence:(XMPPPresence *)presence...方法，当接收到 presence 标签的内容时，XMPPFramework 框架回调该方法 一个 presence 标签的格式一般如下：
presence 的状态：
available 上线 away 离开 do not disturb 忙碌 unavailable 下线- (void)xmppStream:(XMPPStream *)sender didReceivePresence:(XMPPPresence *)presence { NSString *presenceType = [presence type]; NSString *presenceFromUser = [[presence from] user]; if (![presenceFromUser isEqualToString:[[sender myJID] user]]) { if ([presenceType isEqualToString:@"available"]) { // } else if ([presenceType isEqualToString:@"unavailable"]) { // } }}2. 接收消息和发送消息2.1接收消息通过实现 - (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message;方法当接收到 message 标签的内容时，XMPPFramework 框架回调该方法根据 XMPP 协议，消息体的内容存储在标签 body 内- (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message { NSString *messageBody = [[message elementForName:@"body"] stringValue];}2.2发送消息发送消息，我们需要根据 XMPP 协议，将数据放到标签内，例如：
- (void)sendMessage:(NSString *) message toUser:(NSString *) user {
NSXMLElement *body = [NSXMLElement elementWithName:@"body"]; [body setStringValue:message]; NSXMLElement *message = [NSXMLElement elementWithName:@"message"]; [message addAttributeWithName:@"type" stringValue:@"chat"]; NSString *to = [NSString stringWithFormat:@"%@@example.com", user]; [message addAttributeWithName:@"to" stringValue:to]; [message addChild:body]; [self.xmppStream sendElement:message];}3. 获取好友信息和删除好友3.1好友列表和好友名片[_xmppRoster fetchRoster];//获取好友列表//获取到一个好友节点- (void)xmppRoster:(XMPPRoster *)sender didRecieveRosterItem:(NSXMLElement *)item//获取完好友列表- (void)xmppRosterDidEndPopulating:(XMPPRoster *)sender//到服务器上请求联系人名片信息- (void)fetchvCardTempForJID:(XMPPJID *)jid;//请求联系人的名片，如果数据库有就不请求，没有就发送名片请求- (void)fetchvCardTempForJID:(XMPPJID *)jid ignoreStorage:(BOOL)ignoreStorage;//获取联系人的名片，如果数据库有就返回，没有返回空，并到服务器上抓取- (XMPPvCardTemp *)vCardTempForJID:(XMPPJID *)jid shouldFetch:(BOOL)shouldFetch;//更新自己的名片信息- (void)updateMyvCardTemp:(XMPPvCardTemp *)vCardTemp;//获取到一盒联系人的名片信息的回调- (void)xmppvCardTempModule:(XMPPvCardTempModule *)vCardTempModule didReceivevCardTemp:(XMPPvCardTemp *)vCardTemp forJID:(XMPPJID *)jid3.2添加好友 //name为用户账号 - (void)XMPPAddFriendSubscribe:(NSString *)name { //XMPPHOST 就是服务器名， 主机名 XMPPJID *jid = [XMPPJID jidWithString:[NSString stringWithFormat:@"%@@%@",name,XMPPHOST]]; //[presence addAttributeWithName:@"subscription" stringValue:@"好友"]; [xmppRoster subscribePresenceToUser:jid]; }3.3收到添加好友的请求 - (void)xmppRoster:(XMPPRoster *)sender didReceivePresenceSubscriptionRequest:(XMPPPresence *)presence { //取得好友状态 NSString *presenceType = [NSString stringWithFormat:@"%@", [presence type]]; //online/offline //请求的用户 NSString *presenceFromUser =[NSString stringWithFormat:@"%@", [[presence from] user]]; NSLog(@"presenceType:%@",presenceType); NSLog(@"presence2:%@ sender2:%@",presence,sender); XMPPJID *jid = [XMPPJID jidWithString:presenceFromUser]; //接收添加好友请求 [xmppRoster acceptPresenceSubscriptionRequestFrom:jid andAddToRoster:YES]; }
3.4删除好友
//删除好友，name为好友账号- (void)removeBuddy:(NSString *)name { XMPPJID *jid = [XMPPJID jidWithString:[NSString stringWithFormat:@"%@@%@",name,XMPPHOST]]; [self xmppRoster] removeUser:jid]; }4. 聊天室初始化聊天室 XMPPJID *roomJID = [XMPPJID jidWithString:ROOM_JID]; xmppRoom = [[XMPPRoom alloc] initWithRoomStorage:self jid:roomJID]; [xmppRoom activate:xmppStream]; [xmppRoom addDelegate:self delegateQueue:dispatch_get_main_queue()];创建聊天室成功 - (void)xmppRoomDidCreate:(XMPPRoom *)sender { DDLogInfo(@"%@: %@", THIS_FILE, THIS_METHOD); }加入聊天室，使用昵称 [xmppRoom joinRoomUsingNickname:@"quack" history:nil];获取聊天室信息 - (void)xmppRoomDidJoin:(XMPPRoom *)sender { [xmppRoom fetchConfigurationForm]; [xmppRoom fetchBanList]; [xmppRoom fetchMembersList]; [xmppRoom fetchModeratorsList]; }如果房间存在，会调用委托 // 收到禁止名单列表 - (void)xmppRoom:(XMPPRoom *)sender didFetchBanList:(NSArray *)items; // 收到好友名单列表 - (void)xmppRoom:(XMPPRoom *)sender didFetchMembersList:(NSArray *)items; // 收到主持人名单列表 - (void)xmppRoom:(XMPPRoom *)sender didFetchModeratorsList:(NSArray *)items;房间不存在，调用委托 - (void)xmppRoom:(XMPPRoom *)sender didNotFetchBanList:(XMPPIQ *)iqError; - (void)xmppRoom:(XMPPRoom *)sender didNotFetchMembersList:(XMPPIQ *)iqError; - (void)xmppRoom:(XMPPRoom *)sender didNotFetchModeratorsList:(XMPPIQ *)iqError;离开房间[xmppRoom deactivate:xmppStream];XMPPRoomDelegate的其他代理方法:离开聊天室 - (void)xmppRoomDidLeave:(XMPPRoom *)sender { DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); }新人加入群聊 - (void)xmppRoom:(XMPPRoom *)sender occupantDidJoin:(XMPPJID *)occupantJID { DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); }有人退出群聊 - (void)xmppRoom:(XMPPRoom *)sender occupantDidLeave:(XMPPJID *)occupantJID { DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); }有人在群里发言 - (void)xmppRoom:(XMPPRoom *)sender didReceiveMessage:(XMPPMessage *)message fromOccupant:(XMPPJID *)occupantJID { DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); }
5. 消息回执
这个是XEP－0184协议的内容协议内容：发送消息时附加回执请求360桌面截图20141219110801.jpg代码实现 NSString *siID = [XMPPStream generateUUID]; //发送消息 XMPPMessage *message = [XMPPMessage messageWithType:@"chat" to:jid elementID:siID]; NSXMLElement *receipt = [NSXMLElement elementWithName:@"request" xmlns:@"urn:xmpp:receipts"]; [message addChild:receipt]; [message addBody:@"测试"]; [self.xmppStream sendElement:message];收到回执请求的消息，发送回执
代码实现
- (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message { //回执判断 NSXMLElement *request = [message elementForName:@"request"]; if (request) { if ([request.xmlns isEqualToString:@"urn:xmpp:receipts"])//消息回执 { //组装消息回执 XMPPMessage *msg = [XMPPMessage messageWithType:[message attributeStringValueForName:@"type"] to:message.from elementID:[message attributeStringValueForName:@"id"]]; NSXMLElement *recieved = [NSXMLElement elementWithName:@"received" xmlns:@"urn:xmpp:receipts"]; [msg addChild:recieved]; //发送回执 [self.xmppStream sendElement:msg]; } }else { NSXMLElement *received = [message elementForName:@"received"]; if (received) { if ([received.xmlns isEqualToString:@"urn:xmpp:receipts"])//消息回执 { //发送成功 NSLog(@"message send success!"); } } } //消息处理 //... }
6. 添加AutoPing
为了监听服务器是否有效，增加心跳监听。用XEP-0199协议，在XMPPFrameWork框架下，封装了 XMPPAutoPing 和 XMPPPing两个类都可以使用，因为XMPPAutoPing已经组合进了XMPPPing类，所以XMPPAutoPing使用起来更方便。//初始化并启动ping-(void)autoPingProxyServer:(NSString*)strProxyServer{ _xmppAutoPing = [[XMPPAutoPingalloc] init]; [_xmppAutoPingactivate:_xmppStream]; [_xmppAutoPingaddDelegate:selfdelegateQueue: dispatch_get_main_queue()]; _xmppAutoPing.respondsToQueries = YES; _xmppAutoPing.pingInterval=2;//ping 间隔时间 if (nil != strProxyServer) { _xmppAutoPing.targetJID = [XMPPJID jidWithString: strProxyServer ];//设置ping目标服务器，如果为nil,则监听socketstream当前连接上的那个服务器 }}//卸载监听 [_xmppAutoPing deactivate]; [_xmppAutoPing removeDelegate:self]; _xmppAutoPing = nil;//ping XMPPAutoPingDelegate的委托方法:- (void)xmppAutoPingDidSendPing:(XMPPAutoPing *)sender{ NSLog(@"- (void)xmppAutoPingDidSendPing:(XMPPAutoPing *)sender");}- (void)xmppAutoPingDidReceivePong:(XMPPAutoPing *)sender{ NSLog(@"- (void)xmppAutoPingDidReceivePong:(XMPPAutoPing *)sender");} - (void)xmppAutoPingDidTimeout:(XMPPAutoPing *)sender{ NSLog(@"- (void)xmppAutoPingDidTimeout:(XMPPAutoPing *)sender");