fix

apps/iot/src/iot_app.erl

@@ -8,6 +8,7 @@
 -behaviour(application).
 
 -export([start/2, stop/1]).
+-export([start_http_server/0]).
 
 start(_StartType, _StartArgs) ->
     io:setopts([{encoding, unicode}]),
@@ -19,7 +20,7 @@ start(_StartType, _StartArgs) ->
     %% 加速内存的回收
     erlang:system_flag(fullsweep_after, 16),
 
-    start_http_server(),
+    %start_http_server(),
 
     iot_sup:start_link().
 

apps/iot/src/iot_emqtt_client.erl

@@ -48,12 +48,12 @@ start_link() ->
     {ok, State :: #state{}} | {ok, State :: #state{}, timeout() | hibernate} |
     {stop, Reason :: term()} | ignore).
 init([]) ->
-    {ok, ServerOpts} = application:get_env(iot, emqx_server),
+    %{ok, ServerOpts} = application:get_env(iot, emqx_server),
-    {ok, ConnPid} = emqtt:start_link([{clientid, iot_emqtt_client}, {owner, self()}|ServerOpts]),
+    %{ok, ConnPid} = emqtt:start_link([{clientid, iot_emqtt_client}, {owner, self()}|ServerOpts]),
-    {ok, _Props} = emqtt:connect(ConnPid),
+    %{ok, _Props} = emqtt:connect(ConnPid),
 
-    SubOpts = [{qos, 1}],
+    %SubOpts = [{qos, 1}],
-    {ok, _Props, _ReasonCodes} = emqtt:subscribe(ConnPid, #{}, [{<<"hello">>, SubOpts}]),
+    %{ok, _Props, _ReasonCodes} = emqtt:subscribe(ConnPid, #{}, [{<<"hello">>, SubOpts}]),
 
     {ok, #state{}}.
 

apps/iot/src/model/host_model.erl

@@ -97,7 +97,7 @@ change_status(HostId, Status) when is_binary(HostId), is_integer(Status) ->
             {error, Reason}
     end.
 
--spec activate(HostId :: binary()) -> ok | {error, Reason}.
+-spec activate(HostId :: binary()) -> ok | {error, Reason :: any()}.
 activate(HostId) when is_binary(HostId) ->
     Fun = fun() ->
         case mnesia:read(host, HostId) of