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我正在尝试在 ejabberd 中创建一个简单的回声机器人。我可以让 mod_echo 正常工作，而且我相当肯定我有自己的版本在某个时候工作（调试已经在我的脑海中发挥了作用）。我收到下面的错误，但我不知道接下来要做什么来调试它。路由似乎有问题，但不太清楚为什么。有小费吗？

2016-03-31 16:49:38.350 [debug] <0.448.0>@ejabberd_router:do_route:324 route
    from {jid,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>}
    to {jid,<<>>,<<"echo.alchemy.local">>,<<>>,<<>>,<<"echo.alchemy.local">>,<<>>}
    packet {xmlel,<<"message">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<"echo.alchemy.local">>},{<<"id">>,<<"aacca">>}],[{xmlcdata,<<"\n">>},{xmlel,<<"subject">>,[],[]},{xmlcdata,<<"\n">>},{xmlel,<<"body">>,[],[{xmlcdata,<<"testme">>}]},{xmlcdata,<<"\n">>},{xmlel,<<"nick">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/nick">>}],[{xmlcdata,<<"user1">>}]},{xmlcdata,<<"\n">>}]}
2016-03-31 16:49:38.351 [error] <0.448.0>@ejabberd_router:route:77 {function_clause,[{mod_echobot,route,[{jid,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>},{jid,<<>>,<<"echo.alchemy.local">>,<<>>,<<>>,<<"echo.alchemy.local">>,<<>>},{xmlel,<<"message">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<"echo.alchemy.local">>},{<<"id">>,<<"aacca">>}],[{xmlcdata,<<"\n">>},{xmlel,<<"subject">>,[],[]},{xmlcdata,<<"\n">>},{xmlel,<<"body">>,[],[{xmlcdata,<<"testme">>}]},{xmlcdata,<<"\n">>},{xmlel,<<"nick">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/nick">>}],[{xmlcdata,<<"user1">>}]},{xmlcdata,<<"\n">>}]}],[{file,"mod_echobot.erl"},{line,86}]},{ejabberd_router,route,3,[{file,"src/ejabberd_router.erl"},{line,75}]},{ejabberd_c2s,check_privacy_route,5,[{file,"src/ejabberd_c2s.erl"},{line,2121}]},{ejabberd_c2s,session_established2,2,[{file,"src/ejabberd_c2s.erl"},{line,1288}]},{p1_fsm,handle_msg,10,[{file,"src/p1_fsm.erl"},{line,582}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,237}]}]}
when processing: {{jid,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>,<<"user1">>,<<"alchemy.local">>,<<"alchemy">>},{jid,<<>>,<<"echo.alchemy.local">>,<<>>,<<>>,<<"echo.alchemy.local">>,<<>>},{xmlel,<<"message">>,[{<<"xml:lang">>,<<"en">>},{<<"to">>,<<"echo.alchemy.local">>},{<<"id">>,<<"aacca">>}],[{xmlcdata,<<"\n">>},{xmlel,<<"subject">>,[],[]},{xmlcdata,<<"\n">>},{xmlel,<<"body">>,[],[{xmlcdata,<<"testme">>}]},{xmlcdata,<<"\n">>},{xmlel,<<"nick">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/nick">>}],[{xmlcdata,<<"user1">>}]},{xmlcdata,<<"\n">>}]}}
2016-03-31 16:50:16.356 [debug] <0.447.0>@ejabberd_receiver:process_data:282 Received XML on stream = <<"\n">>
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似乎在代码示例中（来自我在网上找到的旧示例）https://gist.github.com/stevenlivz/d666200595a23c42b2a662fef87bf281我需要在子句中使用 <<"message">> 来实际匹配，而我使用的示例代码没有这样做，只使用“消息”等等。此外，还值得注意的是 xmlelement 现在是 xmlel ，因此也需要更新子句。例如

route(From, To, {xmlel, <<"message">>, _, _} = Packet) ->
于 2016-04-01T15:40:41.167 回答