//首先我們需要使用到iOS SDK里的NSNetService類@PRoperty(strong,nonatomic)NSNetService*netService;

//初始化服務，指定服務的域，類型，名稱和端口   _netService = [[NSNetService alloc] initWithDomain:@"local." type:@"_http._tcp." name:@"DamonWebServer" port:5222];

//指定代理[_netServicesetDelegate:self];//發布注冊服務[_netService publish];

//NSNetServiceDelegate代理協議相關代理方法  按需求使用@protocolNSNetServiceBrowserDelegate <NSObject>@optional/* Sent to the NSNetServiceBrowser instance's delegate before the instance begins a search. The delegate will not receive this message if the instance is unable to begin a search. Instead, the delegate will receive the -netServiceBrowser:didNotSearch: message.*/- (void)netServiceBrowserWillSearch:(NSNetServiceBrowser*)aNetServiceBrowser;/* Sent to the NSNetServiceBrowser instance's delegate when the instance's previous running search request has stopped.*/- (void)netServiceBrowserDidStopSearch:(NSNetServiceBrowser*)aNetServiceBrowser;/* Sent to the NSNetServiceBrowser instance's delegate when an error in searching for domains or services has occurred. The error dictionary will contain two key/value pairs representing the error domain and code (see the NSNetServicesError enumeration above for error code constants). It is possible for an error to occur after a search has been started successfully.*/- (void)netServiceBrowser:(NSNetServiceBrowser*)aNetServiceBrowser didNotSearch:(NSDictionary*)errorDict;/* Sent to the NSNetServiceBrowser instance's delegate for each domain discovered. If there are more domains, moreComing will be YES. If for some reason handling discovered domains requires significant processing, accumulating domains until moreComing is NO and then doing the processing in bulk fashion may be desirable.*/- (void)netServiceBrowser:(NSNetServiceBrowser*)aNetServiceBrowser didFindDomain:(NSString*)domainString moreComing:(BOOL)moreComing;/* Sent to the NSNetServiceBrowser instance's delegate for each service discovered. If there are more services, moreComing will be YES. If for some reason handling discovered services requires significant processing, accumulating services until moreComing is NO and then doing the processing in bulk fashion may be desirable.*/- (void)netServiceBrowser:(NSNetServiceBrowser*)aNetServiceBrowser didFindService:(NSNetService*)aNetService moreComing:(BOOL)moreComing;/* Sent to the NSNetServiceBrowser instance's delegate when a previously discovered domain is no longer available.*/- (void)netServiceBrowser:(NSNetServiceBrowser*)aNetServiceBrowser didRemoveDomain:(NSString*)domainString moreComing:(BOOL)moreComing;/* Sent to the NSNetServiceBrowser instance's delegate when a previously discovered service is no longer published.*/- (void)netServiceBrowser:(NSNetServiceBrowser*)aNetServiceBrowser didRemoveService:(NSNetService*)aNetService moreComing:(BOOL)moreComing;

//客戶端主要使用的是iOS SDK里的NSNetServiceBrowser@property(strong,nonatomic)NSNetServiceBrowser*serverBrowser;@property(strong,nonatomic)NSMutableArray*servers;//NSNetService在客戶端用于解析@property(strong,nonatomic)NSNetService*netserver;//初始化NSNetServiceBrowser_serverBrowser= [[NSNetServiceBrowseralloc]init];//指定代理_serverBrowser.delegate = self;_servers = [NSMutableArrayarray];//查找服務接著使用NSNetServiceBrowser實例的searchForServicesOfType方法查找服務，方法中可以指定需要查找的服務類型和查找的域[_serverBrowsersearchForServicesOfType:@"_http._tcp."inDomain:@"local."];

//即將解析服務，- (void)netServiceWillResolve:(NSNetService *)netService {       NSLog(@"netServiceWillResolve");   }//解析服務成功- (void)netServiceDidResolveAddress:(NSNetService *)netService {       NSLog(@"service ip:%@,------port:%d",netService.addresses,netService.port);       } //解析服務失敗，解析出錯- (void)netService:(NSNetService *)netService didNotResolve:(NSDictionary *)errorDict {       NSLog(@"didNotResolve: %@",errorDict);   }  //已發現服務- (void)netServiceBrowser:(NSNetServiceBrowser *)netServiceBrowser didFindService:(NSNetService *)netService moreComing:(BOOL)moreServicesComing{       NSLog(@"didFindService");    _netserver = netService;    _netserver.delegate = self;    //設置解析超時時間    [_netserverresolveWithTimeout:5.0];}