七、RabbitMQ - PHP 操作 RabbitMQ - PHP 死信队列操作
hi，我是温新，一名 PHPer
版本：erlang-25.2.1、rabbitmq_server-3.11.9
系统版本：Rocky Linux 9.1
学习目标：了解死信队列的操作
本篇文章结合官方文档编写及参考网络资料编写，虽非全部原创，但也是结合了自己的理解，若转载请附带本文 URL，编写不易，持续编写更不易，谢谢！
死信交换机
DLX（Dead Letter Exchange）死信交换机。当一个消息在队列中变成死信后，会被 publish 到死信交换机，然后再配置一个队列监听它，这个队列就是死信队列。
死信队列的配置需要两个参数：x-dead-letter-exchange 和 'x-dead-letter-routing-key。下面开始演示死信队列的案例。
消费生产者
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 死信队列</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">deadMq</span>()</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$data</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'死信队列测试-消息被拒绝死信队列'</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">/**</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* 正常消息队列</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*/</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">exchange_declare</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'my-logs'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'direct'</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$args</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">AMQPTable</span>([</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 信息过期时间</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'x-message-ttl'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">20000</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'x-dead-letter-exchange'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-exc'</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'x-dead-letter-routing-key'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-key'</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> ]);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 通过队列额外参数设置过期时期等配置</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">queue_declare</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user-log-1'</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">true</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$args</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">queue_bind</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user-log-1'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'my-logs'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">/**</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* 死信队列的配置</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*/</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 1、声明死信交换机</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">exchange_declare</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-exc'</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'direct'</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 2、声明死信队列</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">queue_declare</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-log-queue'</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">true</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 3、死信队列与死信交换机绑定</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">queue_bind</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-log-queue'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-exc'</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-key'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 正常队列发送消息</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">AMQPMessage</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$data</span>, [<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'delivery_mode'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">AMQPMessage</span>::<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">DELIVERY_MODE_PERSISTENT</span>]);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">basic_publish</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'my-logs'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">close</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$this</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">mqConnection</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">close</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span>
上述代码声明两个与之相关的交换机与队列。一个是正常业务的消息队列，一个是死信队列。
1、正常消息队列业务逻辑中，通过额外参数配置过期时间等，让其成为死信队列；
2、通过 x-dead-letter-exchange 和 x-dead-letter-routing-key 配置信息交换机名称与路由键；
3、配置死信队列，交换机是 x-dead-letter-exchange 设置的值；
4、死信队列绑定死信交换机并设置路由键。
消息者（正常业务）
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important"><?</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">namespace</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">App\Console\Commands</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">use</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Illuminate\Console\Command</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">use</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">PhpAmqpLib\Connection\AMQPStreamConnection</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">//正常消息者</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">class</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">LogMq</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">extends</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Command</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">protected</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$signature</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'mq:log'</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">protected</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$description</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'Command description'</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">handle</span>(): <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">void</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$connection</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">AMQPStreamConnection</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'localhost'</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">5672</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'test'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'123456'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'sms'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$connection</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">exchange_declare</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'my-logs'</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'direct'</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">list</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$queueName</span>, ,) <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">queue_declare</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">""</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">true</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">queue_bind</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$queueName</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'my-logs'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$callback</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span>) {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">echo</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'输出： '</span> . <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">body</span> . <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">PHP_EOL</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">ack</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> };</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">basic_qos</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">null</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">null</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">basic_consume</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$queueName</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">''</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$callback</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">while</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">is_open</span>())</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">wait</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">close</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$connection</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">close</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span>
这是一个正常业务的消息消费者。后续我们改动这个消费者来实现死信队列。
死信队列消费者
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important"><?</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">namespace</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">App\Console\Commands</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">use</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Illuminate\Console\Command</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">use</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">PhpAmqpLib\Connection\AMQPStreamConnection</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">class</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">DeadMqLog</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">extends</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">Command</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">protected</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$signature</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'mq:dead'</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">protected</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$description</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'Command description'</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">public</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">handle</span>(): <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">void</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$connection</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">AMQPStreamConnection</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'localhost'</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">5672</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'test'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'123456'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'ziruchu'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$connection</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">channel</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">exchange_declare</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-exc'</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'direct'</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>,<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">queue_bind</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-log-queue'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-exc'</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-key'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$callback</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span>) {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">echo</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'从死信队列中输出的消息： '</span> . <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">body</span> . <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">PHP_EOL</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">ack</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> };</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">basic_qos</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">null</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">null</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">basic_consume</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-log-queue'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">''</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>, <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$callback</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">while</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">is_open</span>())</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">wait</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$channel</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">close</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$connection</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">close</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">}</span>
这是一个死信队列消费者，当有死信消费时就会走到这里。
死信队列演示
拒绝接收消息
1、修改 LogMq.php 正常消费者代码
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 未变化代码</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$callback</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span>) {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 拒绝接收消息</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important"> // $msg</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">delivery_info</span>[<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'channel'</span>]<span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">basic_ack</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">delivery_info</span>[<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'delivery_tag'</span>]);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <br></br> // 2023-11-24 更新（未测试，后续测试后再次更新）<br></br> $msg->delivery_info['channel']->basic_ack($msg->delivery_info['delivery_tag']);<br></br>};<br></br></span><br></br><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 未变化代码</span></span>
2、效果
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important"># 生产者发布消息</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">curl</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">http</span>:<span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">//la10test.test/mq/dead</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important"># 正常消费者</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">php</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">artisan</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">mq</span>:<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">log</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important"># 死信队列</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">php</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">artisan</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">mq</span>:<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">dead</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">从死信队列中输出的消息：</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">死信队列测试</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">消息被拒绝死信队列</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">从死信队列中输出的消息：</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">死信队列测试</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">消息被拒绝死信队列</span></span>
消息过期
利用消息过期可以实现延迟队列的效果
1、修改 LogMq.php 正常消费者代码
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$callback</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span>) {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 睡眠 23 秒，</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">sleep</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">23</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">delivery_info</span>[<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'channel'</span>]<span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">basic_nack</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$msg</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">delivery_info</span>[<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'delivery_tag'</span>]);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">};</span>
2、效果
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important"># 生产者发布消息</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">curl</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">http</span>:<span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">//la10test.test/mq/dead</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important"># 正常消费者</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">php</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">artisan</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">mq</span>:<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">log</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important"># 死信队列</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">php</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">artisan</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">mq</span>:<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">dead</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">从死信队列中输出的消息：</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">死信队列测试</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">消息被拒绝死信队列</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">从死信队列中输出的消息：</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">死信队列测试</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">消息被拒绝死信队列</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">从死信队列中输出的消息：</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">死信队列测试</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">消息被拒绝死信队列</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">从死信队列中输出的消息：</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">死信队列测试</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-</span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">消息被拒绝死信队列</span></span>
队列长度达到最大长度
1、修改生产者代码配置（deadMq 方法）
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$args</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">AMQPTable</span>([</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'x-max-length'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">5</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'x-overflow'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'reject-publish-dlx'</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'x-dead-letter-exchange'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-exc'</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'x-dead-letter-routing-key'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dead-key'</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">]);</span>
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