Rabbit为AMQP 1.0消息保存额外字节

我使用 rhea (类型脚本):

const connection: Connection = new Connection (
  {
    host: 'localhost',
    port: 5672,
    id: 'my_id',
    reconnect: true
  }
);

const senderName = "sender01";
const senderOptions: SenderOptions = {
  name: senderName,
  target: {
    address: "target.queue"
  },
  onError: (context: EventContext) => {},
  onSessionError: (context: EventContext) => {}
};

await connection.open();
const sender: Sender = await connection.createSender(senderOptions);
sender.send({
  body: JSON.stringify({"one": "two", "three": "four"}),
  content_encoding: 'UTF-8',
  content_type: 'application/json'
});
console.log("sent");
await sender.close();

await connection.close();
console.log("connection closed");

此示例有效,但这是存储在队列中的内容:

base64编码的消息是 AFN3oRx7Im9uZSI6InR3byIsInRocmVlIjoiZm91ciJ9 ,解码后变成:

Sw{"one":"two","three":"four"}

Sw

我试着用官方的RabbitMQ库(AMQP 0.9.1)设置一个java客户机,看看这些额外的字节是否被发送到了客户机:

ConnectionFactory factory = new ConnectionFactory();
factory.setHost("localhost");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.basicConsume(
  "target.queue",
  true,
  (consumerTag, delivery) -> {
    String message = new String(delivery.getBody(), "UTF-8");
    System.out.println(" [x] Received '" + message + "'");
  },
  ignored -> {}
);

这是输出:

 [x] Received ' Sw�{"one":"two","three":"four"}'

奇怪的是,如果我尝试在AMQP 1.0客户端上使用完全相同的消息,那么这些额外的字节不会出现在接收的消息正文中,只有在使用amqp1.0发布和使用AMQP 0.9.1订阅时才会出现额外的字节。

更新

我还尝试了使用SwiftMQ:

int nMsgs = 100;

int qos = QoS.AT_MOST_ONCE;
AMQPContext ctx = new AMQPContext(AMQPContext.CLIENT);
String host = "localhost";
int port = 5672;
String queue = "target.queue";

try {

  Connection connection = new Connection(ctx, host, port, false);
  connection.setContainerId(UUID.randomUUID().toString());
  connection.setIdleTimeout(-1);
  connection.setMaxFrameSize(1024 * 4);
  connection.setExceptionListener(Exception::printStackTrace);
  connection.connect();
  {

    Session session = connection.createSession(10, 10);
    Producer p = session.createProducer(queue, qos);
    for (int i = 0; i < nMsgs; i++) {
      AMQPMessage msg = new AMQPMessage();
      System.out.println("Sending " + i);
      msg.setAmqpValue(new AmqpValue(new AMQPString("{\"one\":\"two\",\"three\":\"four\"}")));
      p.send(msg);
    }
    p.close();
    session.close();
  }
  connection.close();
} catch (Exception e) {
  e.printStackTrace();
}

[x] Received '□�□□□□□□□w�{"one":"two","three":"four"}'