我从教程中获取hello world示例：
import pika
connection = pika.BlockingConnection(pika.ConnectionParameters(
host='localhost'))
channel = connection.channel()
channel.queue_declare(queue='hello')
channel.basic_publish(exchange='',
routing_key='hello',
body='Hello World!')
print(" [x] Sent 'Hello World!'")
connection.close()
收到错误：它不应该是一个授权用户问题，因为guest / guest应该能够连接到localhost
Traceback (most recent call last):
File "send.py", line 4, in <module>
host='localhost'))
File "/Library/Python/2.7/site-packages/pika/adapters/blocking_connection.py", line 339, in __init__
self._process_io_for_connection_setup()
File "/Library/Python/2.7/site-packages/pika/adapters/blocking_connection.py", line 374, in _process_io_for_connection_setup
self._open_error_result.is_ready)
File "/Library/Python/2.7/site-packages/pika/adapters/blocking_connection.py", line 410, in _flush_output
self._impl.ioloop.poll()
File "/Library/Python/2.7/site-packages/pika/adapters/select_connection.py", line 528, in poll
self._process_fd_events(fd_event_map, write_only)
File "/Library/Python/2.7/site-packages/pika/adapters/select_connection.py", line 443, in _process_fd_events
handler(fileno, events, write_only=write_only)
File "/Library/Python/2.7/site-packages/pika/adapters/base_connection.py", line 364, in _handle_events
self._handle_read()
File "/Library/Python/2.7/site-packages/pika/adapters/base_connection.py", line 412, in _handle_read
return self._handle_disconnect()
File "/Library/Python/2.7/site-packages/pika/adapters/base_connection.py", line 288, in _handle_disconnect
self._adapter_disconnect()
File "/Library/Python/2.7/site-packages/pika/adapters/select_connection.py", line 95, in _adapter_disconnect
super(SelectConnection, self)._adapter_disconnect()
File "/Library/Python/2.7/site-packages/pika/adapters/base_connection.py", line 154, in _adapter_disconnect
self._check_state_on_disconnect()
File "/Library/Python/2.7/site-packages/pika/adapters/base_connection.py", line 173, in _check_state_on_disconnect
raise exceptions.ProbableAuthenticationError
pika.exceptions.ProbableAuthenticationError
这是rabbitmq环境：
Application environment of node 'rabbit@xuches-Air' ...
[{kernel,[{error_logger,tty},
{inet_default_connect_options,[{nodelay,true}]},
{inet_dist_listen_max,25672},
{inet_dist_listen_min,25672}]},
{mnesia,[{dir,"/usr/local/bin/rabbitmq_server-3.6.2/var/lib/rabbitmq/mnesia/rabbit@xuches-Air"}]},
{os_mon,[{start_cpu_sup,false},
{start_disksup,false},
{start_memsup,false},
{start_os_sup,false}]},
{rabbit,[{auth_backends,[rabbit_auth_backend_internal]},
{auth_mechanisms,['PLAIN','AMQPLAIN']},
{backing_queue_module,rabbit_priority_queue},
{channel_max,0},
{channel_operation_timeout,15000},
{cluster_keepalive_interval,10000},
{cluster_nodes,{[],disc}},
{cluster_partition_handling,ignore},
{collect_statistics,none},
{collect_statistics_interval,5000},
{credit_flow_default_credit,{200,50}},
{default_permissions,[<<".*">>,<<".*">>,<<".*">>]},
{default_user,<<"guest">>},
{default_user_tags,[administrator]},
{default_vhost,<<"/">>},
{delegate_count,16},
{disk_free_limit,50000000},
{enabled_plugins_file,"/usr/local/bin/rabbitmq_server-3.6.2/etc/rabbitmq/enabled_plugins"},
{error_logger,{file,"/usr/local/bin/rabbitmq_server-3.6.2/var/log/rabbitmq/rabbit@xuches-Air.log"}},
{fhc_read_buffering,false},
{fhc_write_buffering,true},
{frame_max,131072},
{halt_on_upgrade_failure,true},
{handshake_timeout,10000},
{heartbeat,60},
{hipe_compile,false},
{hipe_modules,[rabbit_reader,rabbit_channel,gen_server2,
rabbit_exchange,rabbit_command_assembler,
rabbit_framing_amqp_0_9_1,rabbit_basic,rabbit_event,
lists,queue,priority_queue,rabbit_router,
rabbit_trace,rabbit_misc,rabbit_binary_parser,
rabbit_exchange_type_direct,rabbit_guid,rabbit_net,
rabbit_amqqueue_process,rabbit_variable_queue,
rabbit_binary_generator,rabbit_writer,delegate,
gb_sets,lqueue,sets,orddict,rabbit_amqqueue,
rabbit_limiter,gb_trees,rabbit_queue_index,
rabbit_exchange_decorator,gen,dict,ordsets,
file_handle_cache,rabbit_msg_store,array,
rabbit_msg_store_ets_index,rabbit_msg_file,
rabbit_exchange_type_fanout,
rabbit_exchange_type_topic,mnesia,mnesia_lib,rpc,
mnesia_tm,qlc,sofs,proplists,credit_flow,pmon,
ssl_connection,tls_connection,ssl_record,tls_record,
gen_fsm,ssl]},
{log_levels,[{connection,info}]},
{loopback_users,[<<"guest">>]},
{memory_monitor_interval,2500},
{mirroring_flow_control,true},
{mirroring_sync_batch_size,4096},
{mnesia_table_loading_timeout,30000},
{msg_store_credit_disc_bound,{2000,500}},
{msg_store_file_size_limit,16777216},
{msg_store_index_module,rabbit_msg_store_ets_index},
{msg_store_io_batch_size,2048},
{num_ssl_acceptors,1},
{num_tcp_acceptors,10},
{password_hashing_module,rabbit_password_hashing_sha256},
{plugins_dir,"/usr/local/bin/rabbitmq_server-3.6.2/plugins"},
{plugins_expand_dir,"/usr/local/bin/rabbitmq_server-3.6.2/var/lib/rabbitmq/mnesia/rabbit@xuches-Air-plugins-expand"},
{queue_index_embed_msgs_below,4096},
{queue_index_max_journal_entries,32768},
{reverse_dns_lookups,false},
{sasl_error_logger,{file,"/usr/local/bin/rabbitmq_server-3.6.2/var/log/rabbitmq/rabbit@xuches-Air-sasl.log"}},
{server_properties,[]},
{ssl_allow_poodle_attack,false},
{ssl_apps,[asn1,crypto,public_key,ssl]},
{ssl_cert_login_from,distinguished_name},
{ssl_handshake_timeout,5000},
{ssl_listeners,[]},
{ssl_options,[]},
{tcp_listen_options,[{backlog,128},
{nodelay,true},
{linger,{true,0}},
{exit_on_close,false}]},
{tcp_listeners,[5672]},
{trace_vhosts,[]},
{vm_memory_high_watermark,0.4},
{vm_memory_high_watermark_paging_ratio,0.5}]},
{rabbit_common,[]},
{ranch,[]},
{sasl,[{errlog_type,error},{sasl_error_logger,false}]},
{stdlib,[]},
{xmerl,[]}]
任何人都知道什么是问题？
答案 0 :(得分：0)
这是一个身份验证问题，请阅读：
Can't access RabbitMQ web management interface after fresh install
和此：
RabbitMQ 3.3.1 can not login with guest/guest
如果您已启用管理UI，请尝试使用以下命令在管理UI上进行访问：
使用guest guest
btw我建议创建一个外部访问的用户。如他所述： RabbitMQ 3.3.1 can not login with guest/guest