ShutdownSignalException: connection error; protocol method:#method<connection.close>(reply-code=503, reply-text=COMMAND_INVALID - unknown exchange type 'x-delayed-message', class-id=40, method-id=10) 表示没有找到对应x-delayed-message的exchange type ,缺少插件 解决办法: 注意:在rabbitmq 3.5.7及...