Caused by: com.rabbitmq.client.ShutdownSignalException: channel error； protocol method: ......

浅浅的花香味﹌ 2023-10-10 10:11 92阅读 0赞

在启动RabbitMQ消费端的时候报错：Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: \#method<channel.close>(reply-code=406, reply-text=PRECONDITION\_FAILED - inequivalent arg 'type' for exchange 'messageChange' in vhost '/': received 'fanout' but current is 'direct', class-id=40, method-id=10)

详细信息如下：

F:\jdk1.8.0_151\bin\java.exe "-javaagent:E:\IntelliJ IDEA 2019.2.1\lib\idea_rt.jar=58077:E:\IntelliJ IDEA 2019.2.1\bin" -Dfile.encoding=UTF-8 -classpath F:\jdk1.8.0_151\jre\lib\charsets.jar;F:\jdk1.8.0_151\jre\lib\deploy.jar;F:\jdk1.8.0_151\jre\lib\ext\access-bridge-64.jar;F:\jdk1.8.0_151\jre\lib\ext\cldrdata.jar;F:\jdk1.8.0_151\jre\lib\ext\dnsns.jar;F:\jdk1.8.0_151\jre\lib\ext\jaccess.jar;F:\jdk1.8.0_151\jre\lib\ext\jfxrt.jar;F:\jdk1.8.0_151\jre\lib\ext\localedata.jar;F:\jdk1.8.0_151\jre\lib\ext\nashorn.jar;F:\jdk1.8.0_151\jre\lib\ext\sunec.jar;F:\jdk1.8.0_151\jre\lib\ext\sunjce_provider.jar;F:\jdk1.8.0_151\jre\lib\ext\sunmscapi.jar;F:\jdk1.8.0_151\jre\lib\ext\sunpkcs11.jar;F:\jdk1.8.0_151\jre\lib\ext\zipfs.jar;F:\jdk1.8.0_151\jre\lib\javaws.jar;F:\jdk1.8.0_151\jre\lib\jce.jar;F:\jdk1.8.0_151\jre\lib\jfr.jar;F:\jdk1.8.0_151\jre\lib\jfxswt.jar;F:\jdk1.8.0_151\jre\lib\jsse.jar;F:\jdk1.8.0_151\jre\lib\management-agent.jar;F:\jdk1.8.0_151\jre\lib\plugin.jar;F:\jdk1.8.0_151\jre\lib\resources.jar;F:\jdk1.8.0_151\jre\lib\rt.jar;F:\workspace\rabbitmqDemo\rabbitmqConsumer02\target\test-classes;F:\repository_ssh\org\springframework\boot\spring-boot-starter-logging\2.1.0.RELEASE\spring-boot-starter-logging-2.1.0.RELEASE.jar;F:\repository_ssh\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;F:\repository_ssh\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;F:\repository_ssh\org\apache\logging\log4j\log4j-to-slf4j\2.11.1\log4j-to-slf4j-2.11.1.jar;F:\repository_ssh\org\apache\logging\log4j\log4j-api\2.11.1\log4j-api-2.11.1.jar;F:\repository_ssh\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;F:\repository_ssh\com\rabbitmq\amqp-client\5.7.0\amqp-client-5.7.0.jar;F:\repository_ssh\org\slf4j\slf4j-api\1.7.26\slf4j-api-1.7.26.jar xyfer.Consumer02
    java.io.IOException
    	at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:129)
    	at com.rabbitmq.client.impl.AMQChannel.wrap(AMQChannel.java:125)
    	at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:147)
    	at com.rabbitmq.client.impl.ChannelN.exchangeDeclare(ChannelN.java:783)
    	at com.rabbitmq.client.impl.recovery.AutorecoveringChannel.exchangeDeclare(AutorecoveringChannel.java:242)
    	at com.rabbitmq.client.impl.recovery.AutorecoveringChannel.exchangeDeclare(AutorecoveringChannel.java:232)
    	at com.rabbitmq.client.impl.recovery.AutorecoveringChannel.exchangeDeclare(AutorecoveringChannel.java:212)
    	at com.rabbitmq.client.impl.recovery.AutorecoveringChannel.exchangeDeclare(AutorecoveringChannel.java:217)
    	at xyfer.Consumer02.main(Consumer02.java:28)
    Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequivalent arg 'type' for exchange 'messageChange' in vhost '/': received 'fanout' but current is 'direct', class-id=40, method-id=10)
    	at com.rabbitmq.utility.ValueOrException.getValue(ValueOrException.java:66)
    	at com.rabbitmq.utility.BlockingValueOrException.uninterruptibleGetValue(BlockingValueOrException.java:36)
    	at com.rabbitmq.client.impl.AMQChannel$BlockingRpcContinuation.getReply(AMQChannel.java:502)
    	at com.rabbitmq.client.impl.AMQChannel.privateRpc(AMQChannel.java:293)
    	at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:141)
    	... 6 more
    Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: #method<channel.close>(reply-code=406, reply-text=PRECONDITION_FAILED - inequivalent arg 'type' for exchange 'messageChange' in vhost '/': received 'fanout' but current is 'direct', class-id=40, method-id=10)
    	at com.rabbitmq.client.impl.ChannelN.asyncShutdown(ChannelN.java:522)
    	at com.rabbitmq.client.impl.ChannelN.processAsync(ChannelN.java:346)
    	at com.rabbitmq.client.impl.AMQChannel.handleCompleteInboundCommand(AMQChannel.java:182)
    	at com.rabbitmq.client.impl.AMQChannel.handleFrame(AMQChannel.java:114)
    	at com.rabbitmq.client.impl.AMQConnection.readFrame(AMQConnection.java:672)
    	at com.rabbitmq.client.impl.AMQConnection.access$300(AMQConnection.java:48)
    	at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:599)
    	at java.lang.Thread.run(Thread.java:748)

仔细看一下报错信息：Caused by: com.rabbitmq.client.ShutdownSignalException: channel error; protocol method: \#method<channel.close>(reply-code=406, reply-text=PRECONDITION\_FAILED - inequivalent arg 'type' for exchange 'messageChange' in vhost '/': received 'fanout' but current is 'direct', class-id=40, method-id=10)

大概意思是交换机的类型不匹配，消费端应该收到名称为“messageChange”，类型为“fanout”的交换机发送的消息，但是当前RabbitMQ中存在的名称为“messageChange”的交换机的类型却是“direct”，所以交换机的类型不匹配。

打开RabbitMQ可以看到确实是这样：

![format_png][]

**目前有两种解决方式：**

**一、更改消费端代码中声明的交换机名称即可；**

**二，把RabbitMQ中的同名却不同类型的交换机删除即可；**

消费端代码如下，交换机名称为“messageChange”，类型为“fanout”；

package xyfer;
    
    import com.rabbitmq.client.*;
    
    import java.io.IOException;
    import java.util.concurrent.TimeoutException;
    
    public class Consumer02 {
        //Publish/subscribe发布订阅模式
        private static final String QUEUE_SMS ="queueSms";
        private static final String EXCHANGE = "messageChange";   同名
        public static void main(String[] args) {
            Connection connection = null;
            Channel channel = null;
            try {
                ConnectionFactory connectionFactory = new ConnectionFactory();
                connectionFactory.setHost("127.0.0.1");
                connectionFactory.setPort(5672);
                connection = connectionFactory.newConnection();
                channel = connection.createChannel();
                //通道绑定交换机
                /**
                  * 参数明细
                  * 1、交换机名称
                  * 2、交换机类型，fanout、topic、direct、headers
                  */
                //Publish/subscribe发布订阅模式
                channel.exchangeDeclare(EXCHANGE, BuiltinExchangeType.FANOUT);   不同类型
                //通道绑定队列
                /**
                 * 声明队列，如果Rabbit中没有此队列将自动创建
                 * param1:队列名称
                 * param2:是否持久化
                 * param3:队列是否独占此连接
                 * param4:队列不再使用时是否自动删除此队列
                 * param5:队列参数
                 * String queue, boolean durable, boolean exclusive, boolean autoDelete, Map<String, Object> arguments
                 *
                 */
                channel.queueDeclare(QUEUE_SMS,true,false,false,null);//通道绑定短信队列
                //交换机和队列绑定
                /**
                 * 参数明细
                 * 1、队列名称
                 * 2、交换机名称
                 * 3、路由key
                 */
                //Publish/subscribe发布订阅模式
                channel.queueBind(QUEUE_SMS,EXCHANGE,"");
                DefaultConsumer consumer = new DefaultConsumer(channel) {
                    /**
                      * 消费者接收消息调用此方法
                      * @param consumerTag 消费者的标签，在channel.basicConsume()去指定
                      * @param envelope 消息包的内容，可从中获取消息id，消息routingkey，交换机，消息和重传标志
                        (收到消息失败后是否需要重新发送)
                      * @param properties
                      * @param body
                      * @throws IOException
                     * String consumerTag, Envelope envelope, BasicProperties properties, byte[] body
                     */
                    @Override
                    public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
                        //交换机
                        String exchange = envelope.getExchange();
                        //路由key
                        String routingKey = envelope.getRoutingKey();
                        envelope.getDeliveryTag();
                        String msg = new String(body,"utf-8");
                        System.out.println("mq收到的消息是："+msg );
                    }
    
                };
                System.out.println("消费者启动成功！");
                channel.basicConsume(QUEUE_SMS,true,consumer);
    
            } catch (IOException e) {
                e.printStackTrace();
            } catch (TimeoutException e) {
                e.printStackTrace();
            }
        }
    }

[format_png]: https://imgconvert.csdnimg.cn/aHR0cHM6Ly9pbWcyMDE4LmNuYmxvZ3MuY29tL2Jsb2cvMTU1Mzc3MS8yMDE5MDkvMTU1Mzc3MS0yMDE5MDkyNTA5NTkxNDc2Ny02Mjc1OTI2NzgucG5n?x-oss-process=image/format,png