CoAP Put error

[Zengpeng21]

I want publish a message to a topic, which topic name is topic1/toic2.
So, I put a message to the url : "coap://localhost/mqtt/topic1%2Ftopic2?c=client1" but put has error.

tips: If I put the message to the url: "coap://localhost/mqtt/topic1?c=client1", it will success.

[grutabow]

What is your coap client? libcoap?

[grutabow]

Please share your emqtt log, such as log/error.log, log/erlang.log.1. Thanks!

And what is your emqttd version?

[Zengpeng21]

coap client： californium

log/error.log：
2017-11-05 19:34:16.529 [error] <0.482.0>@emq_coap_resource:coap_put:76 CoAP-RES: put has error, Prefix=[<<"mqtt">>], Name=[<<"topic1">>,<<"toic2">>], Content={coap_content,undefined,60,<<"text/plain">>,[],<<"helloworld!">>}
2017-11-05 19:34:36.530 [error] <0.360.0> Supervisor {<0.360.0>,coap_channel_sup_sup} had child {{127,0,0,1},49988} started with {coap_channel_sup,start_link,undefined} at <0.479.0> exit with reason killed in context child_terminated
2017-11-05 19:34:36.530 [error] <0.480.0> gen_server <0.480.0> terminated with reason: killed
2017-11-05 19:34:36.530 [error] <0.480.0> CRASH REPORT Process <0.480.0> with 0 neighbours exited with reason: killed in gen_server:terminate/7 line 812

Other log files are not recorded.

[Zengpeng21]

emqttd version: 2.3

[justina111]

You can change your url to "coap://localhost/mqtt?c=client1", and set the uri_path option of "topic1/topic2" separately by the method "addUriPath", then the uri_path won't be split by "/". For example, you can make your put like,
String resourcePath = "topic1/topic2";
String uri = "coap://localhost/mqtt?c=client1”;
Request request = Request.newPut();
request.setURI(uri);
request.getOptions().addUriPath(resourcePath);

Hope it will help you.