{"id":53551,"date":"2025-08-12T12:59:56","date_gmt":"2025-08-12T04:59:56","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/53551.html"},"modified":"2025-08-12T12:59:56","modified_gmt":"2025-08-12T04:59:56","slug":"rabbitmq%ef%bc%9arabbitmq%e5%bb%b6%e8%bf%9f%e9%98%9f%e5%88%97%e7%9a%84%e5%ae%9e%e7%8e%b0%e5%8e%9f%e7%90%86%e4%b8%8e%e5%b7%a5%e7%a8%8b%e5%ae%9e%e8%b7%b5","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/53551.html","title":{"rendered":"RabbitMQ\uff1aRabbitMQ\u5ef6\u8fdf\u961f\u5217\u7684\u5b9e\u73b0\u539f\u7406\u4e0e\u5de5\u7a0b\u5b9e\u8df5"},"content":{"rendered":"

\u6df1\u5ea6\u89e3\u6790RabbitMQ\u5ef6\u8fdf\u961f\u5217\u7684\u5b9e\u73b0\u539f\u7406\u4e0e\u5de5\u7a0b\u5b9e\u8df5<\/h2>\n

\u4e00\u3001\u5ef6\u8fdf\u961f\u5217\u7684\u6838\u5fc3\u4ef7\u503c\u4e0e\u5e94\u7528\u573a\u666f<\/h3>\n

\u5ef6\u8fdf\u961f\u5217\u4f5c\u4e3a\u6d88\u606f\u4e2d\u95f4\u4ef6\u7684\u91cd\u8981\u7279\u6027，\u5728\u5927\u5382\u7684\u9ad8\u5e76\u53d1\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u626e\u6f14\u7740\u5173\u952e\u89d2\u8272\u3002\u5728\u7535\u5546\u7cfb\u7edf\u4e2d，\u8ba2\u5355\u8d85\u65f6\u672a\u652f\u4ed8\u81ea\u52a8\u53d6\u6d88；\u5728\u91d1\u878d\u7cfb\u7edf\u4e2d，\u5b9a\u65f6\u5bf9\u8d26\u4efb\u52a1\u89e6\u53d1；\u5728\u7269\u6d41\u7cfb\u7edf\u4e2d，\u8d85\u65f6\u672a\u63fd\u4ef6\u63d0\u9192\u7b49\u573a\u666f，\u5ef6\u8fdf\u961f\u5217\u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u57fa\u7840\u8bbe\u65bd\u3002<\/p>\n

RabbitMQ\u4f5c\u4e3a\u8001\u724c\u6d88\u606f\u4e2d\u95f4\u4ef6，\u867d\u7136\u539f\u751f\u4e0d\u652f\u6301\u5ef6\u8fdf\u961f\u5217，\u4f46\u901a\u8fc7\u7075\u6d3b\u7684\u63d2\u4ef6\u548c\u8bbe\u8ba1\u6a21\u5f0f，\u4f9d\u7136\u53ef\u4ee5\u5b9e\u73b0\u5f3a\u5927\u7684\u5ef6\u8fdf\u529f\u80fd\u3002\u672c\u6587\u5c06\u6df1\u5165\u5256\u6790RabbitMQ\u5b9e\u73b0\u5ef6\u8fdf\u961f\u5217\u7684\u591a\u79cd\u65b9\u6848，\u5e76\u7ed3\u5408\u7b14\u8005\u5728\u963f\u91cc\u548c\u5b57\u8282\u8df3\u52a8\u7684\u5b9e\u6218\u7ecf\u9a8c，\u5206\u4eab\u751f\u4ea7\u73af\u5883\u4e2d\u7684\u6700\u4f73\u5b9e\u8df5\u3002<\/p>\n

\u4e8c\u3001RabbitMQ\u5ef6\u8fdf\u961f\u5217\u5b9e\u73b0\u65b9\u6848\u5bf9\u6bd4<\/h3>\n

1. \u65b9\u6848\u9009\u578b\u5bf9\u6bd4\u8868<\/h4>\n\n\u5b9e\u73b0\u65b9\u6848\u4f18\u70b9\u7f3a\u70b9\u9002\u7528\u573a\u666fTTL\u7cbe\u5ea6<\/tr>\n\n\n\n\n\n
TTL+DLX<\/td>\n\u65e0\u9700\u63d2\u4ef6，\u539f\u751f\u652f\u6301<\/td>\n\u961f\u5217\u7ea7\u522bTTL\u4e0d\u7075\u6d3b<\/td>\n\u5ef6\u8fdf\u65f6\u95f4\u56fa\u5b9a<\/td>\n\u79d2\u7ea7<\/td>\n<\/tr>\n
\u5ef6\u8fdf\u63d2\u4ef6<\/td>\n\u539f\u751f\u652f\u6301，\u529f\u80fd\u5b8c\u5584<\/td>\n\u9700\u8981\u5b89\u88c5\u63d2\u4ef6<\/td>\n\u590d\u6742\u5ef6\u8fdf\u9700\u6c42<\/td>\n\u6beb\u79d2\u7ea7<\/td>\n<\/tr>\n
\u65f6\u95f4\u8f6e<\/td>\n\u6027\u80fd\u6781\u9ad8<\/td>\n\u5b9e\u73b0\u590d\u6742<\/td>\n\u6d77\u91cf\u5b9a\u65f6\u4efb\u52a1<\/td>\n\u6beb\u79d2\u7ea7<\/td>\n<\/tr>\n
\u5916\u90e8\u5b58\u50a8<\/td>\n\u53ef\u6301\u4e45\u5316，\u53ef\u67e5\u8be2<\/td>\n\u4f9d\u8d56\u5916\u90e8\u5b58\u50a8<\/td>\n\u91cd\u8981\u5ef6\u8fdf\u6d88\u606f<\/td>\n\u79d2\u7ea7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

2. \u7cfb\u7edf\u6d41\u7a0b\u56fe (mermaid)<\/h4>\n

#mermaid-svg-O8j5MuYBoi8FrdWC {font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-O8j5MuYBoi8FrdWC .error-icon{fill:#552222;}#mermaid-svg-O8j5MuYBoi8FrdWC .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-O8j5MuYBoi8FrdWC .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-O8j5MuYBoi8FrdWC .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-O8j5MuYBoi8FrdWC .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-O8j5MuYBoi8FrdWC .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-O8j5MuYBoi8FrdWC .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-O8j5MuYBoi8FrdWC .marker{fill:#333333;stroke:#333333;}#mermaid-svg-O8j5MuYBoi8FrdWC .marker.cross{stroke:#333333;}#mermaid-svg-O8j5MuYBoi8FrdWC svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-O8j5MuYBoi8FrdWC .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-O8j5MuYBoi8FrdWC .cluster-label text{fill:#333;}#mermaid-svg-O8j5MuYBoi8FrdWC .cluster-label span{color:#333;}#mermaid-svg-O8j5MuYBoi8FrdWC .label text,#mermaid-svg-O8j5MuYBoi8FrdWC span{fill:#333;color:#333;}#mermaid-svg-O8j5MuYBoi8FrdWC .node rect,#mermaid-svg-O8j5MuYBoi8FrdWC .node circle,#mermaid-svg-O8j5MuYBoi8FrdWC .node ellipse,#mermaid-svg-O8j5MuYBoi8FrdWC .node polygon,#mermaid-svg-O8j5MuYBoi8FrdWC .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-O8j5MuYBoi8FrdWC .node .label{text-align:center;}#mermaid-svg-O8j5MuYBoi8FrdWC .node.clickable{cursor:pointer;}#mermaid-svg-O8j5MuYBoi8FrdWC .arrowheadPath{fill:#333333;}#mermaid-svg-O8j5MuYBoi8FrdWC .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-O8j5MuYBoi8FrdWC .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-O8j5MuYBoi8FrdWC .edgeLabel{background-color:#e8e8e8;text-align:center;}#mermaid-svg-O8j5MuYBoi8FrdWC .edgeLabel rect{opacity:0.5;background-color:#e8e8e8;fill:#e8e8e8;}#mermaid-svg-O8j5MuYBoi8FrdWC .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-O8j5MuYBoi8FrdWC .cluster text{fill:#333;}#mermaid-svg-O8j5MuYBoi8FrdWC .cluster span{color:#333;}#mermaid-svg-O8j5MuYBoi8FrdWC div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-O8j5MuYBoi8FrdWC :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/span>TTL+DLX<\/span>\u5ef6\u8fdf\u63d2\u4ef6<\/span><\/span><\/span><\/span><\/span><\/span><\/span>\u751f\u4ea7\u8005\u53d1\u9001\u5ef6\u8fdf\u6d88\u606f<\/span>\u5ef6\u8fdf\u65b9\u6848\u9009\u62e9<\/span>\u8bbe\u7f6e\u6d88\u606fTTL\u548c\u6b7b\u4fe1\u4ea4\u6362\u5668<\/span>\u4f7f\u7528x-delay\u5934\u6307\u5b9a\u5ef6\u8fdf\u65f6\u95f4<\/span>\u6d88\u606f\u8fdb\u5165\u666e\u901a\u961f\u5217\u7b49\u5f85TTL\u8fc7\u671f<\/span>\u6d88\u606f\u76f4\u63a5\u8fdb\u5165\u5ef6\u8fdf\u4ea4\u6362\u5668<\/span>\u8fc7\u671f\u6d88\u606f\u8f6c\u5165\u6b7b\u4fe1\u961f\u5217<\/span>\u5ef6\u8fdf\u5230\u671f\u540e\u8def\u7531\u5230\u76ee\u6807\u961f\u5217<\/span>\u6d88\u8d39\u8005\u5904\u7406\u6d88\u606f<\/span><\/p>\n

\u4e09\u3001TTL+DLX\u65b9\u6848\u6df1\u5ea6\u89e3\u6790<\/h3>\n

1. \u5b9e\u73b0\u539f\u7406<\/h4>\n

TTL(Time To Live)+DLX(Dead Letter Exchange)\u7ec4\u5408\u662fRabbitMQ\u5b9e\u73b0\u5ef6\u8fdf\u961f\u5217\u7684\u7ecf\u5178\u6a21\u5f0f\u3002\u5176\u6838\u5fc3\u601d\u60f3\u662f：<\/p>\n

  • \u4e3a\u6d88\u606f\u6216\u961f\u5217\u8bbe\u7f6eTTL\u5c5e\u6027<\/li>\n
  • \u914d\u7f6e\u6b7b\u4fe1\u4ea4\u6362\u5668(DLX)\u548c\u8def\u7531\u952e<\/li>\n
  • \u6d88\u606f\u8fc7\u671f\u540e\u901a\u8fc7DLX\u8def\u7531\u5230\u76ee\u6807\u961f\u5217<\/li>\n

    2. \u7cfb\u7edf\u4ea4\u4e92\u65f6\u5e8f\u56fe<\/h4>\n

    #mermaid-svg-668vEX65rxbAFJXy {font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}#mermaid-svg-668vEX65rxbAFJXy .error-icon{fill:#552222;}#mermaid-svg-668vEX65rxbAFJXy .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-668vEX65rxbAFJXy .edge-thickness-normal{stroke-width:2px;}#mermaid-svg-668vEX65rxbAFJXy .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-668vEX65rxbAFJXy .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-668vEX65rxbAFJXy .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-668vEX65rxbAFJXy .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-668vEX65rxbAFJXy .marker{fill:#333333;stroke:#333333;}#mermaid-svg-668vEX65rxbAFJXy .marker.cross{stroke:#333333;}#mermaid-svg-668vEX65rxbAFJXy svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-668vEX65rxbAFJXy .actor{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-668vEX65rxbAFJXy text.actor>tspan{fill:black;stroke:none;}#mermaid-svg-668vEX65rxbAFJXy .actor-line{stroke:grey;}#mermaid-svg-668vEX65rxbAFJXy .messageLine0{stroke-width:1.5;stroke-dasharray:none;stroke:#333;}#mermaid-svg-668vEX65rxbAFJXy .messageLine1{stroke-width:1.5;stroke-dasharray:2,2;stroke:#333;}#mermaid-svg-668vEX65rxbAFJXy #arrowhead path{fill:#333;stroke:#333;}#mermaid-svg-668vEX65rxbAFJXy .sequenceNumber{fill:white;}#mermaid-svg-668vEX65rxbAFJXy #sequencenumber{fill:#333;}#mermaid-svg-668vEX65rxbAFJXy #crosshead path{fill:#333;stroke:#333;}#mermaid-svg-668vEX65rxbAFJXy .messageText{fill:#333;stroke:#333;}#mermaid-svg-668vEX65rxbAFJXy .labelBox{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-668vEX65rxbAFJXy .labelText,#mermaid-svg-668vEX65rxbAFJXy .labelText>tspan{fill:black;stroke:none;}#mermaid-svg-668vEX65rxbAFJXy .loopText,#mermaid-svg-668vEX65rxbAFJXy .loopText>tspan{fill:black;stroke:none;}#mermaid-svg-668vEX65rxbAFJXy .loopLine{stroke-width:2px;stroke-dasharray:2,2;stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);}#mermaid-svg-668vEX65rxbAFJXy .note{stroke:#aaaa33;fill:#fff5ad;}#mermaid-svg-668vEX65rxbAFJXy .noteText,#mermaid-svg-668vEX65rxbAFJXy .noteText>tspan{fill:black;stroke:none;}#mermaid-svg-668vEX65rxbAFJXy .activation0{fill:#f4f4f4;stroke:#666;}#mermaid-svg-668vEX65rxbAFJXy .activation1{fill:#f4f4f4;stroke:#666;}#mermaid-svg-668vEX65rxbAFJXy .activation2{fill:#f4f4f4;stroke:#666;}#mermaid-svg-668vEX65rxbAFJXy .actorPopupMenu{position:absolute;}#mermaid-svg-668vEX65rxbAFJXy .actorPopupMenuPanel{position:absolute;fill:#ECECFF;box-shadow:0px 8px 16px 0px rgba(0,0,0,0.2);filter:drop-shadow(3px 5px 2px rgb(0 0 0 \/ 0.4));}#mermaid-svg-668vEX65rxbAFJXy .actor-man line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-668vEX65rxbAFJXy .actor-man circle,#mermaid-svg-668vEX65rxbAFJXy line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;stroke-width:2px;}#mermaid-svg-668vEX65rxbAFJXy :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}ProducerRabbitMQConsumer\u53d1\u9001\u6d88\u606f(\u8bbe\u7f6eTTL\u548cDLX)\u6d88\u606f\u8fdb\u5165\u666e\u901a\u961f\u5217\u5e76\u5f00\u59cb\u8ba1\u65f6\u68c0\u67e5\u6d88\u606fTTLloop[TTL\u5012\u8ba1\u65f6-]TTL\u8fc7\u671f，\u6d88\u606f\u8f6c\u5165\u6b7b\u4fe1\u961f\u5217\u8ba2\u9605\u6b7b\u4fe1\u961f\u5217\u6295\u9012\u5ef6\u8fdf\u6d88\u606f\u5904\u7406\u5ef6\u8fdf\u6d88\u606fProducerRabbitMQConsumer<\/p>\n

    3. \u751f\u4ea7\u7ea7\u4ee3\u7801\u5b9e\u73b0<\/h4>\n

    \/\/ \u963f\u91cc\u4e91\u751f\u4ea7\u73af\u5883\u914d\u7f6e\u793a\u4f8b<\/span>
    \npublic<\/span> class<\/span> DelayQueueConfig<\/span> {<\/span>
    \n \/\/ \u666e\u901a\u4ea4\u6362\u5668\u548c\u961f\u5217（\u7528\u4e8e\u6682\u5b58\u5ef6\u8fdf\u6d88\u606f）<\/span>
    \n @Bean<\/span>
    \n public<\/span> DirectExchange<\/span> normalExchange<\/span>(<\/span>)<\/span> {<\/span>
    \n return<\/span> new<\/span> DirectExchange<\/span>(<\/span>"normal.exchange"<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    @Bean<\/span>
    \n public<\/span> Queue<\/span> normalQueue<\/span>(<\/span>)<\/span> {<\/span>
    \n return<\/span> QueueBuilder<\/span>.<\/span>durable<\/span>(<\/span>"normal.queue"<\/span>)<\/span>
    \n .<\/span>withArgument<\/span>(<\/span>"x-message-ttl"<\/span>,<\/span> 60000<\/span>)<\/span> \/\/ 1\u5206\u949fTTL<\/span>
    \n .<\/span>withArgument<\/span>(<\/span>"x-dead-letter-exchange"<\/span>,<\/span> "dlx.exchange"<\/span>)<\/span>
    \n .<\/span>withArgument<\/span>(<\/span>"x-dead-letter-routing-key"<\/span>,<\/span> "delay.routing.key"<\/span>)<\/span>
    \n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u6b7b\u4fe1\u4ea4\u6362\u5668\u548c\u961f\u5217（\u5b9e\u9645\u6d88\u8d39\u7684\u5ef6\u8fdf\u961f\u5217）<\/span>
    \n @Bean<\/span>
    \n public<\/span> DirectExchange<\/span> dlxExchange<\/span>(<\/span>)<\/span> {<\/span>
    \n return<\/span> new<\/span> DirectExchange<\/span>(<\/span>"dlx.exchange"<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    @Bean<\/span>
    \n public<\/span> Queue<\/span> delayQueue<\/span>(<\/span>)<\/span> {<\/span>
    \n return<\/span> QueueBuilder<\/span>.<\/span>durable<\/span>(<\/span>"real.delay.queue"<\/span>)<\/span>.<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    \/\/ \u7ed1\u5b9a\u5173\u7cfb<\/span>
    \n @Bean<\/span>
    \n public<\/span> Binding<\/span> normalBinding<\/span>(<\/span>)<\/span> {<\/span>
    \n return<\/span> BindingBuilder<\/span>.<\/span>bind<\/span>(<\/span>normalQueue<\/span>(<\/span>)<\/span>)<\/span>
    \n .<\/span>to<\/span>(<\/span>normalExchange<\/span>(<\/span>)<\/span>)<\/span>
    \n .<\/span>with<\/span>(<\/span>"normal.routing.key"<\/span>)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    @Bean<\/span>
    \n public<\/span> Binding<\/span> dlxBinding<\/span>(<\/span>)<\/span> {<\/span>
    \n return<\/span> BindingBuilder<\/span>.<\/span>bind<\/span>(<\/span>delayQueue<\/span>(<\/span>)<\/span>)<\/span>
    \n .<\/span>to<\/span>(<\/span>dlxExchange<\/span>(<\/span>)<\/span>)<\/span>
    \n .<\/span>with<\/span>(<\/span>"delay.routing.key"<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    4. \u5b57\u8282\u8df3\u52a8\u5b9e\u6218\u7ecf\u9a8c<\/h4>\n

    \u5728\u5b57\u8282\u8df3\u52a8\u7684\u7535\u5546\u5e73\u53f0\u4e2d，\u6211\u4eec\u91c7\u7528\u591a\u7ea7\u5ef6\u8fdf\u961f\u5217\u8bbe\u8ba1\u5e94\u5bf9\u4e0d\u540c\u65f6\u6548\u9700\u6c42：<\/p>\n

  • \u77ed\u5ef6\u8fdf(1\u5206\u949f\u5185)：\u4f7f\u7528\u5185\u5b58\u65f6\u95f4\u8f6e\u5b9e\u73b0，\u5e94\u5bf9\u9ad8\u5e76\u53d1\u79d2\u7ea7\u5ef6\u8fdf<\/li>\n
  • \u4e2d\u5ef6\u8fdf(1\u5206\u949f-1\u5c0f\u65f6)：\u91c7\u7528TTL+DLX\u65b9\u6848，\u5e73\u8861\u6027\u80fd\u548c\u7cbe\u5ea6<\/li>\n
  • \u957f\u5ef6\u8fdf(1\u5c0f\u65f6\u4ee5\u4e0a)：\u4f7f\u7528Redis ZSet\u5b58\u50a8，\u5b9a\u671f\u626b\u63cf\u89e6\u53d1<\/li>\n

    \u6027\u80fd\u4f18\u5316\u70b9：<\/p>\n

      \n
    • \u6279\u91cf\u8bbe\u7f6eTTL：\u5bf9\u4e8e\u5927\u6279\u91cf\u5ef6\u8fdf\u6d88\u606f，\u5148\u5b58\u5165Redis\u518d\u6279\u91cf\u6295\u9012\u5230MQ<\/li>\n
    • \u51b7\u70ed\u5206\u79bb：\u9ad8\u9891\u68c0\u67e5\u7684\u77ed\u5ef6\u8fdf\u6d88\u606f\u4f7f\u7528\u72ec\u7acb\u96c6\u7fa4<\/li>\n
    • \u76d1\u63a7\u8865\u507f：\u589e\u52a0\u5ef6\u8fdf\u76d1\u63a7\u4efb\u52a1，\u9632\u6b62\u6d88\u606f\u5806\u79ef\u5bfc\u81f4\u5ef6\u8fdf\u4e0d\u51c6\u786e<\/li>\n<\/ul>\n

      \u56db\u3001RabbitMQ\u5ef6\u8fdf\u63d2\u4ef6\u65b9\u6848<\/h3>\n

      1. \u63d2\u4ef6\u5b89\u88c5\u4e0e\u914d\u7f6e<\/h4>\n

      # \u4e0b\u8f7d\u63d2\u4ef6(\u7248\u672c\u9700\u4e0eRabbitMQ\u5339\u914d)<\/span>
      \nwget<\/span> https:\/\/github.com\/rabbitmq\/rabbitmq-delayed-message-exchange\/releases\/download\/3.11.1\/rabbitmq_delayed_message_exchange-3.11.1.ez<\/p>\n

      # \u542f\u7528\u63d2\u4ef6<\/span>
      \nrabbitmq-plugins enable<\/span> rabbitmq_delayed_message_exchange<\/p>\n

      2. \u751f\u4ea7\u73af\u5883\u914d\u7f6e\u8981\u70b9<\/h4>\n

      @Configuration<\/span>
      \npublic<\/span> class<\/span> DelayedPluginConfig<\/span> {<\/span><\/p>\n

      @Bean<\/span>
      \n public<\/span> CustomExchange<\/span> delayedExchange<\/span>(<\/span>)<\/span> {<\/span>
      \n Map<\/span><<\/span>String<\/span>,<\/span> Object<\/span>><\/span><\/span> args =<\/span> new<\/span> HashMap<\/span><<\/span>><\/span><\/span>(<\/span>)<\/span>;<\/span>
      \n args.<\/span>put<\/span>(<\/span>"x-delayed-type"<\/span>,<\/span> "direct"<\/span>)<\/span>;<\/span>
      \n return<\/span> new<\/span> CustomExchange<\/span>(<\/span>"delayed.exchange"<\/span>,<\/span> "x-delayed-message"<\/span>,<\/span> true<\/span>,<\/span> false<\/span>,<\/span> args)<\/span>;<\/span>
      \n }<\/span><\/p>\n

      @Bean<\/span>
      \n public<\/span> Queue<\/span> delayedQueue<\/span>(<\/span>)<\/span> {<\/span>
      \n return<\/span> new<\/span> Queue<\/span>(<\/span>"delayed.queue"<\/span>)<\/span>;<\/span>
      \n }<\/span><\/p>\n

      @Bean<\/span>
      \n public<\/span> Binding<\/span> binding<\/span>(<\/span>)<\/span> {<\/span>
      \n return<\/span> BindingBuilder<\/span>.<\/span>bind<\/span>(<\/span>delayedQueue<\/span>(<\/span>)<\/span>)<\/span>
      \n .<\/span>to<\/span>(<\/span>delayedExchange<\/span>(<\/span>)<\/span>)<\/span>
      \n .<\/span>with<\/span>(<\/span>"delayed.routing.key"<\/span>)<\/span>
      \n .<\/span>noargs<\/span>(<\/span>)<\/span>;<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      3. \u6d88\u606f\u53d1\u9001\u793a\u4f8b<\/h4>\n

      public<\/span> void<\/span> sendDelayedMessage<\/span>(<\/span>String<\/span> message,<\/span> long<\/span> delayMillis)<\/span> {<\/span>
      \n rabbitTemplate.<\/span>convertAndSend<\/span>(<\/span>"delayed.exchange"<\/span>,<\/span> "delayed.routing.key"<\/span>,<\/span> message,<\/span> msg -><\/span> {<\/span>
      \n msg.<\/span>getMessageProperties<\/span>(<\/span>)<\/span>.<\/span>setHeader<\/span>(<\/span>"x-delay"<\/span>,<\/span> delayMillis)<\/span>;<\/span>
      \n return<\/span> msg;<\/span>
      \n }<\/span>)<\/span>;<\/span>
      \n}<\/span><\/p>\n

      \u4e94\u3001\u5927\u5382\u9762\u8bd5\u6df1\u5ea6\u8ffd\u95ee\u4e0e\u89e3\u51b3\u65b9\u6848<\/h3>\n

      \u8ffd\u95ee1：\u5982\u4f55\u89e3\u51b3\u6d77\u91cf\u5ef6\u8fdf\u6d88\u606f\u7684\u5185\u5b58\u538b\u529b？<\/h4>\n

      \u95ee\u9898\u80cc\u666f：
      \n\u5f53\u7cfb\u7edf\u4e2d\u6709\u6570\u767e\u4e07\u6761\u5ef6\u8fdf\u6d88\u606f\u65f6，RabbitMQ\u7684\u5185\u5b58\u5360\u7528\u4f1a\u6025\u5267\u4e0a\u5347，\u53ef\u80fd\u5bfc\u81f4\u8282\u70b9\u5d29\u6e83\u3002<\/p>\n

      \u5b57\u8282\u8df3\u52a8\u89e3\u51b3\u65b9\u6848：<\/p>\n

    • \u6d88\u606f\u5206\u7247\u8bbe\u8ba1：<\/li>\n

      \/\/ \u6839\u636e\u5ef6\u8fdf\u65f6\u95f4\u5206\u7247\u5230\u4e0d\u540c\u961f\u5217<\/span>
      \npublic<\/span> String<\/span> getRoutingKey<\/span>(<\/span>long<\/span> delay)<\/span> {<\/span>
      \n if<\/span> (<\/span>delay <=<\/span> 60_000<\/span>)<\/span> return<\/span> "delay.1m"<\/span>;<\/span>
      \n if<\/span> (<\/span>delay <=<\/span> 300_000<\/span>)<\/span> return<\/span> "delay.5m"<\/span>;<\/span>
      \n return<\/span> "delay.1h"<\/span>;<\/span>
      \n}<\/span><\/p>\n

    • \u78c1\u76d8\u5b58\u50a8\u4f18\u5316：<\/li>\n
        \n
      • \u4fee\u6539RabbitMQ\u914d\u7f6e，\u5f3a\u5236\u5c06\u5ef6\u8fdf\u6d88\u606f\u6301\u4e45\u5316\u5230\u78c1\u76d8<\/li>\n<\/ul>\n

        # \/etc\/rabbitmq\/rabbitmq.conf
        \nqueue_index_embed_msgs_below = 4096 # 4KB\u4ee5\u4e0b\u6d88\u606f\u4e5f\u5199\u5165\u78c1\u76d8<\/p>\n

      • \u6df7\u5408\u5b58\u50a8\u67b6\u6784：<\/li>\n
          \n
        • \u5bf9\u4e8e\u5ef6\u8fdf\u8d85\u8fc71\u5c0f\u65f6\u7684\u6d88\u606f，\u5148\u5b58\u5165HBase<\/li>\n
        • \u4f7f\u7528\u5ef6\u8fdf\u89e6\u53d1\u5668\u5728\u5230\u671f\u524d5\u5206\u949f\u52a0\u8f7d\u5230RabbitMQ<\/li>\n<\/ul>\n
        • \u76d1\u63a7\u4e0e\u544a\u8b66：<\/li>\n

          \/\/ \u81ea\u5b9a\u4e49\u76d1\u63a7\u7ec4\u4ef6<\/span>
          \n@Scheduled<\/span>(<\/span>fixedRate =<\/span> 60000<\/span>)<\/span>
          \npublic<\/span> void<\/span> monitorDelayQueues<\/span>(<\/span>)<\/span> {<\/span>
          \n QueueMetrics<\/span> metrics =<\/span> rabbitAdmin.<\/span>getQueueMetrics<\/span>(<\/span>"delay.queue"<\/span>)<\/span>;<\/span>
          \n if<\/span> (<\/span>metrics.<\/span>getMessageCount<\/span>(<\/span>)<\/span> ><\/span> 100_000<\/span>)<\/span> {<\/span>
          \n alertService.<\/span>sendAlert<\/span>(<\/span>"\u5ef6\u8fdf\u961f\u5217\u5806\u79ef\u8b66\u544a"<\/span>)<\/span>;<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

          \u8ffd\u95ee2：\u5982\u4f55\u4fdd\u8bc1\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\u5ef6\u8fdf\u6d88\u606f\u7684\u7cbe\u786e\u6295\u9012？<\/h4>\n

          \u95ee\u9898\u80cc\u666f：
          \n\u5728\u96c6\u7fa4\u73af\u5883\u4e0b，\u7f51\u7edc\u5ef6\u8fdf\u3001\u65f6\u949f\u4e0d\u540c\u6b65\u7b49\u95ee\u9898\u53ef\u80fd\u5bfc\u81f4\u6d88\u606f\u6295\u9012\u65f6\u95f4\u4e0d\u51c6\u786e\u3002<\/p>\n

          \u963f\u91cc\u4e91\u89e3\u51b3\u65b9\u6848：<\/p>\n

        • \u96c6\u7fa4\u65f6\u949f\u540c\u6b65\u65b9\u6848：<\/li>\n

          # \u4f7f\u7528chrony\u8fdb\u884c\u7eb3\u79d2\u7ea7\u65f6\u949f\u540c\u6b65<\/span>
          \nserver ntp.aliyun.com iburst minpoll 4<\/span> maxpoll 4<\/span><\/p>\n

        • \u5206\u5e03\u5f0f\u534f\u8c03\u63a7\u5236：<\/li>\n

          public<\/span> class<\/span> DistributedDelayController<\/span> {<\/span>
          \n private<\/span> final<\/span> RedissonClient<\/span> redisson;<\/span><\/p>\n

          public<\/span> void<\/span> scheduleDelayedMessage<\/span>(<\/span>String<\/span> messageId,<\/span> long<\/span> targetTime)<\/span> {<\/span>
          \n RLock<\/span> lock =<\/span> redisson.<\/span>getLock<\/span>(<\/span>"delay:"<\/span> +<\/span> messageId)<\/span>;<\/span>
          \n try<\/span> {<\/span>
          \n lock.<\/span>lock<\/span>(<\/span>)<\/span>;<\/span>
          \n long<\/span> current =<\/span> System<\/span>.<\/span>currentTimeMillis<\/span>(<\/span>)<\/span>;<\/span>
          \n if<\/span> (<\/span>current <<\/span> targetTime)<\/span> {<\/span>
          \n Thread<\/span>.<\/span>sleep<\/span>(<\/span>targetTime –<\/span> current)<\/span>;<\/span>
          \n }<\/span>
          \n sendToTargetQueue<\/span>(<\/span>messageId)<\/span>;<\/span>
          \n }<\/span> finally<\/span> {<\/span>
          \n lock.<\/span>unlock<\/span>(<\/span>)<\/span>;<\/span>
          \n }<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

        • \u8865\u507f\u673a\u5236\u8bbe\u8ba1：<\/li>\n

          \/\/ \u6d88\u606f\u63d0\u524d\u6295\u9012\u65f6\u7684\u8865\u507f\u5904\u7406<\/span>
          \n@RabbitListener<\/span>(<\/span>queues =<\/span> "target.queue"<\/span>)<\/span>
          \npublic<\/span> void<\/span> handleMessage<\/span>(<\/span>Message<\/span> message,<\/span> Channel<\/span> channel)<\/span> {<\/span>
          \n long<\/span> actualTime =<\/span> System<\/span>.<\/span>currentTimeMillis<\/span>(<\/span>)<\/span>;<\/span>
          \n long<\/span> expectedTime =<\/span> message.<\/span>getMessageProperties<\/span>(<\/span>)<\/span>.<\/span>getHeader<\/span>(<\/span>"expectedTime"<\/span>)<\/span>;<\/span><\/p>\n

          if<\/span> (<\/span>actualTime <<\/span> expectedTime)<\/span> {<\/span>
          \n channel.<\/span>basicNack<\/span>(<\/span>message.<\/span>getMessageProperties<\/span>(<\/span>)<\/span>.<\/span>getDeliveryTag<\/span>(<\/span>)<\/span>,<\/span> false<\/span>,<\/span> true<\/span>)<\/span>;<\/span>
          \n \/\/ \u8bb0\u5f55\u63d0\u524d\u6295\u9012\u6307\u6807<\/span>
          \n metrics.<\/span>counter<\/span>(<\/span>"early.delivery"<\/span>)<\/span>.<\/span>increment<\/span>(<\/span>)<\/span>;<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

        • \u8de8\u673a\u623f\u5ef6\u8fdf\u6821\u51c6：<\/li>\n

          public<\/span> class<\/span> CrossDCDelayCorrector<\/span> {<\/span>
          \n public<\/span> long<\/span> calculateAdjustedDelay<\/span>(<\/span>long<\/span> originalDelay)<\/span> {<\/span>
          \n long<\/span> dcLatency =<\/span> latencyService.<\/span>getDCLatency<\/span>(<\/span>)<\/span>;<\/span>
          \n return<\/span> originalDelay –<\/span> dcLatency \/<\/span> 2<\/span>;<\/span>
          \n }<\/span>
          \n}<\/span><\/p>\n

          \u516d\u3001\u6027\u80fd\u4f18\u5316\u5173\u952e\u6307\u6807<\/h3>\n

          \u6839\u636e\u5728\u963f\u91cc\u548c\u5b57\u8282\u7684\u5b9e\u6218\u7ecf\u9a8c，\u4f18\u5316\u540e\u7684\u5ef6\u8fdf\u961f\u5217\u5e94\u8fbe\u5230\u4ee5\u4e0b\u6307\u6807：<\/p>\n\n\u6307\u6807\u9879\u666e\u901a\u96c6\u7fa4\u4f18\u5316\u96c6\u7fa4\u4f18\u5316\u624b\u6bb5<\/tr>\n\n\n\n\n\n
          \u541e\u5410\u91cf<\/td>\n5k\/s<\/td>\n50k\/s<\/td>\n\u6d88\u606f\u5206\u7247+\u6279\u91cf\u5904\u7406<\/td>\n<\/tr>\n
          \u5185\u5b58\u5360\u7528<\/td>\n1GB\/10\u4e07\u6d88\u606f<\/td>\n100MB\/10\u4e07\u6d88\u606f<\/td>\n\u78c1\u76d8\u5b58\u50a8+\u538b\u7f29<\/td>\n<\/tr>\n
          \u5ef6\u8fdf\u8bef\u5dee<\/td>\n\u00b1500ms<\/td>\n\u00b150ms<\/td>\n\u65f6\u949f\u540c\u6b65+\u8865\u507f<\/td>\n<\/tr>\n
          \u53ef\u7528\u6027<\/td>\n99.9%<\/td>\n99.99%<\/td>\n\u591a\u6d3b\u90e8\u7f72<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u4e03\u3001\u603b\u7ed3\u4e0e\u6700\u4f73\u5b9e\u8df5<\/h3>\n
        • \n

          \u65b9\u6848\u9009\u578b\u5efa\u8bae：<\/p>\n

            \n
          • \u4e2d\u5c0f\u89c4\u6a21：\u4f18\u5148\u4f7f\u7528\u5ef6\u8fdf\u63d2\u4ef6，\u7b80\u5355\u9ad8\u6548<\/li>\n
          • \u5927\u89c4\u6a21\u573a\u666f：\u91c7\u7528TTL+DLX\u7ed3\u5408\u5916\u90e8\u5b58\u50a8<\/li>\n
          • \u8d85\u5927\u89c4\u6a21：\u81ea\u7814\u57fa\u4e8e\u65f6\u95f4\u8f6e\u7684\u5ef6\u8fdf\u670d\u52a1<\/li>\n<\/ul>\n<\/li>\n
          • \n

            \u751f\u4ea7\u73af\u5883\u68c0\u67e5\u6e05\u5355：<\/p>\n

              \n
            • \u786e\u4fdd\u5f00\u542f\u6d88\u606f\u6301\u4e45\u5316<\/li>\n
            • \u8bbe\u7f6e\u5408\u7406\u7684\u961f\u5217TTL\u548c\u6700\u5927\u957f\u5ea6<\/li>\n
            • \u76d1\u63a7\u6b7b\u4fe1\u961f\u5217\u6d88\u606f\u5806\u79ef\u60c5\u51b5<\/li>\n
            • \u5b9a\u671f\u68c0\u67e5\u63d2\u4ef6\u7248\u672c\u517c\u5bb9\u6027<\/li>\n<\/ul>\n<\/li>\n
            • \n

              \u672a\u6765\u6f14\u8fdb\u65b9\u5411：<\/p>\n

                \n
              • \u4e0ePulsar\u7b49\u65b0\u578b\u6d88\u606f\u961f\u5217\u7684\u5ef6\u8fdf\u673a\u5236\u5bf9\u6bd4<\/li>\n
              • \u57fa\u4e8eServerless\u7684\u5f39\u6027\u5ef6\u8fdf\u670d\u52a1<\/li>\n
              • \u673a\u5668\u5b66\u4e60\u9884\u6d4b\u5ef6\u8fdf\u65f6\u95f4\u52a8\u6001\u8c03\u6574<\/li>\n<\/ul>\n<\/li>\n

                \u901a\u8fc7\u672c\u6587\u7684\u6df1\u5ea6\u5256\u6790，\u76f8\u4fe1\u8bfb\u8005\u5df2\u7ecf\u638c\u63e1\u4e86RabbitMQ\u5ef6\u8fdf\u961f\u5217\u7684\u6838\u5fc3\u539f\u7406\u548c\u9ad8\u7ea7\u5b9e\u8df5\u3002\u5728\u5b9e\u9645\u7cfb\u7edf\u8bbe\u8ba1\u4e2d，\u9700\u8981\u6839\u636e\u4e1a\u52a1\u7279\u70b9\u3001\u89c4\u6a21\u5927\u5c0f\u548c\u8fd0\u7ef4\u80fd\u529b\u9009\u62e9\u5408\u9002\u7684\u5b9e\u73b0\u65b9\u6848，\u5e76\u6301\u7eed\u4f18\u5316\u76d1\u63a7\u4f53\u7cfb，\u624d\u80fd\u6784\u5efa\u9ad8\u53ef\u9760\u3001\u9ad8\u53ef\u7528\u7684\u5ef6\u8fdf\u961f\u5217\u670d\u52a1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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