JAVA获取rabbitmq消息总数过程详解

@Value("${spring.rabbitmq.host}")
private String host;
 
@Value("${spring.rabbitmq.port}")
private Integer port;
 
@Value("${spring.rabbitmq.username}")
private String username;
 @Value("${spring.rabbitmq.password}")
private String password;
 ConnectionFactory factory = new ConnectionFactory();
//设置ip，port，用户名和秘密
factory.setHost(host);
factory.setPort(port);
factory.setUsername(username);
factory.setPassword(password);
 //创建链接
Connection connection = factory.newConnection();
 //创建信道
Channel channel = connection.createChannel();
 //创建一个type=direct 持久化的 非自动删除的交换器
channel.exchangeDeclare(EXCHANGE_NAME, "direct", true, false, null);

String []queues = queueNames.split(",");
for(String queue : queues){
  DeclareOk declareOk = channel.queueDeclarePassive(queue);
  //获取队列中的消息个数
  int num = declareOk.getMessageCount();
  if(num > 100) {
   //当队列数超过100的时候，进行操作
  }
}

@Value("${business.consumerQueue}")
private String queueNames;
String []queues = queueNames.split(",");