appDelegate裏面：-(void)application:(UIApplication
*)application didReceiveRemoteNotification:(NSDictionary *)userInfo; 通過userinfo獲取推送過來的東西;如果程序沒啓動的情況下通過push啓動的話在- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions裏面通過NSDictionary *local = [launchOptions
objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey]; 獲取推送過來的json；
