项目场景：

需要esp32板子一块，一个wifi热点，最好是自己手机的

问题描述

当你配置好阿里云官方文档所需要的信息后，出现报错：description: 'Failed to authenticate: 4'

node:events:491
      throw er; // Unhandled 'error' event
      ^
ConnectionError: Failed to authenticate: 4
    at Connection._handle_error (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\connection.js:479:36)
    at Connection.sasl_failed (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\connection.js:454:10)
    at SaslClient.on_sasl_outcome (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\sasl.js:314:25)
    at c.dispatch (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\types.js:948:33)
    at Transport.read (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\transport.js:117:36)
    at SaslClient.read (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\sasl.js:346:31)
    at Connection.input (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\connection.js:567:37)
    at TLSSocket.emit (node:events:513:28)
    at addChunk (node:internal/streams/readable:315:12)
    at readableAddChunk (node:internal/streams/readable:289:9)
Emitted 'error' event on Container instance at:
    at Container.dispatch (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\container.js:41:33)
    at Connection.dispatch (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\connection.js:261:40)
    at Connection.input (C:\Users\晨\Desktop\esp32test\node_modules\.store\rhea@3.0.2\node_modules\rhea\lib\connection.js:593:18)
    at TLSSocket.emit (node:events:513:28)
    at addChunk (node:internal/streams/readable:315:12)
    at readableAddChunk (node:internal/streams/readable:289:9)
    at TLSSocket.Readable.push (node:internal/streams/readable:228:10)
    at TLSWrap.onStreamRead (node:internal/stream_base_commons:190:23) {
  condition: 'amqp:internal-error',
  description: 'Failed to authenticate: 4'
}

原因分析：

const container = require('rhea'); const crypto = require('crypto'); //创建Connection。 var connection = container.connect({ //接入域名，请参见AMQP客户端接入说明文档。 'host': '${YourHost}', 'port': 5671, 'transport':'tls', 'reconnect':true, 'idle_time_out':60000, //userName组装方法，请参见AMQP客户端接入说明文档。 'username':'${YourClientId}|authMode=aksign,signMethod=hmacsha1,timestamp=1573489088171,authId=${YourAccessKeyId},iotInstanceId=${YourIotInstanceId},consumerGroupId=${YourConsumerGroupId}|', //计算签名，password组装方法，请参见AMQP客户端接入说明文档。 'password': hmacSha1('${YourAccessKeySecret}', 'authId=${YourAccessKeyId}&timestamp=1573489088171'), });

你的如上信息表单配置错误，请配置的时候仔细按照官方文档指示配置
官方文档：Node.js SDK接入示例 (aliyun.com)

解决方案：

我遇到的问题是因为YourClientId 如果你是window11用户直接用直接的mac地址，你的格式是这样'00:DD:B6:BF:32:30，字符用：隔开的，但是就是因为这个原因，出现以上报错，你需要将：  修改成 -

例如：