{"id":864,"date":"2025-12-22T09:10:56","date_gmt":"2025-12-22T01:10:56","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=864"},"modified":"2025-12-22T09:10:56","modified_gmt":"2025-12-22T01:10:56","slug":"%e4%b8%80%e6%96%87%e8%ae%b2%e9%80%8frabbitmq-%e6%b6%88%e6%81%af%e9%98%9f%e5%88%97%e4%b8%ad%e7%9a%84%e6%8b%92%e7%bb%9d%e6%9c%ba%e5%88%b6-2","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2025\/12\/22\/%e4%b8%80%e6%96%87%e8%ae%b2%e9%80%8frabbitmq-%e6%b6%88%e6%81%af%e9%98%9f%e5%88%97%e4%b8%ad%e7%9a%84%e6%8b%92%e7%bb%9d%e6%9c%ba%e5%88%b6-2\/","title":{"rendered":"\u4e00\u6587\u8bb2\u900fRabbitMQ \u6d88\u606f\u961f\u5217\u4e2d\u7684\u62d2\u7edd\u673a\u5236\u00a0"},"content":{"rendered":"\n

\u4e00\u6587\u8bb2\u900f RabbitMQ \u6d88\u606f\u961f\u5217\u4e2d\u7684\u62d2\u7edd\uff08Reject\uff09\u673a\u5236
\uff08\u5305\u542b Nack\u3001Reject\u3001\u6b7b\u4fe1\u3001\u91cd\u56de\u961f\u5217\u7b49\u6838\u5fc3\u6982\u5ff5\uff09RabbitMQ \u7684\u62d2\u7edd\u673a\u5236\u662f\u6d88\u8d39\u8005\u5904\u7406\u6d88\u606f\u5931\u8d25\u65f6\u7684\u6838\u5fc3\u5904\u7406\u65b9\u5f0f\uff0c\u76f4\u63a5\u5f71\u54cd\u6d88\u606f\u7684\u53ef\u9760\u6027\u3001\u91cd\u8bd5\u3001\u6b7b\u4fe1\u548c\u6d88\u8d39\u7aef\u6d41\u63a7\u30021. \u6d88\u8d39\u8005\u62d2\u7edd\u6d88\u606f\u7684\u4e24\u79cd\u4e3b\u8981\u65b9\u5f0f<\/p>\n\n\n\n

\u65b9\u6cd5<\/th>\u547d\u4ee4<\/th>\u4f5c\u7528<\/th>\u662f\u5426\u53ef\u91cd\u56de\u961f\u5217<\/th>\u662f\u5426\u53ef\u8fdb\u5165\u6b7b\u4fe1\u961f\u5217<\/th><\/tr>
basic.reject<\/td>channel.basicReject(deliveryTag, requeue)<\/td>\u62d2\u7edd\u4e00\u6761\u6d88\u606f\uff0c\u53ef\u9009\u62e9\u662f\u5426\u91cd\u65b0\u5165\u961f<\/td>\u53ef\u63a7<\/td>requeue=false \u65f6\u53ef\u8fdb\u5165\u6b7b\u4fe1<\/td><\/tr>
basic.nack<\/td>channel.basicNack(deliveryTag, multiple, requeue)<\/td>\u6279\u91cf\u62d2\u7edd\u591a\u6761\u6d88\u606f\uff0c\u53ef\u9009\u62e9\u662f\u5426\u91cd\u65b0\u5165\u961f<\/td>\u53ef\u63a7<\/td>requeue=false \u65f6\u53ef\u8fdb\u5165\u6b7b\u4fe1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u53c2\u6570\u89e3\u91ca\uff1a<\/p>\n\n\n\n

    \n
  • deliveryTag\uff1a\u6d88\u606f\u7684\u552f\u4e00\u6807\u8bc6\uff08long \u7c7b\u578b\uff0c\u7531 RabbitMQ \u5206\u914d\uff09<\/li>\n\n\n\n
  • multiple\uff1a\u662f\u5426\u6279\u91cf\u5904\u7406\uff08true \u5219\u62d2\u7edd deliveryTag \u4e4b\u524d\u6240\u6709\u672a\u786e\u8ba4\u7684\u6d88\u606f\uff09<\/li>\n\n\n\n
  • requeue\uff1a\u662f\u5426\u91cd\u65b0\u653e\u56de\u539f\u961f\u5217\uff08true \u2192 \u653e\u56de\u961f\u5217\uff1bfalse \u2192 \u4e0d\u653e\u56de\uff09<\/li>\n<\/ul>\n\n\n\n

    2. requeue = true vs false \u7684\u6838\u5fc3\u533a\u522b<\/p>\n\n\n\n

    requeue \u503c<\/th>\u6d88\u606f\u53bb\u5411<\/th>\u5178\u578b\u573a\u666f<\/th>\u98ce\u9669\/\u526f\u4f5c\u7528<\/th><\/tr>
    true<\/td>\u653e\u56de\u539f\u961f\u5217\u5934\u90e8\uff08\u6216\u5c3e\u90e8\uff0c\u53d6\u51b3\u4e8e\u914d\u7f6e\uff09<\/td>\u4e34\u65f6\u5f02\u5e38\uff08\u5982\u6570\u636e\u5e93\u77ed\u6682\u4e0d\u53ef\u7528\uff09\uff0c\u5e0c\u671b\u7a0d\u540e\u91cd\u8bd5<\/td>\u53ef\u80fd\u5bfc\u81f4\u6d88\u606f\u65e0\u9650\u5faa\u73af\uff08\u6b7b\u5faa\u73af\uff09<\/td><\/tr>
    false<\/td>\u4e0d\u653e\u56de\u539f\u961f\u5217\uff0c\u5982\u679c\u914d\u7f6e\u4e86\u6b7b\u4fe1\u4ea4\u6362\u673a\uff08DLX\uff09\u2192 \u8fdb\u5165\u6b7b\u4fe1\u961f\u5217<\/td>\u4e1a\u52a1\u903b\u8f91\u9519\u8bef\u3001\u975e\u6cd5\u6d88\u606f\u3001\u4e0d\u53ef\u91cd\u8bd5\u7684\u5931\u8d25<\/td>\u6d88\u606f\u4e22\u5931\uff08\u9664\u975e\u914d\u7f6e\u6b7b\u4fe1\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    \u6b7b\u5faa\u73af\u7ecf\u5178\u573a\u666f\uff08\u975e\u5e38\u91cd\u8981\uff0c\u5f88\u591a\u4eba\u8e29\u5751\uff09\uff1a<\/p>\n\n\n\n

    java<\/p>\n\n\n

    \nwhile (true) {\n    \/\/ \u4e1a\u52a1\u5904\u7406\u5931\u8d25\n    channel.basicReject(deliveryTag, true); \/\/ requeue=true\n}\n<\/pre><\/div>\n\n\n
    \u2192 \u6d88\u606f\u4e00\u76f4\u88ab\u62d2\u7edd \u2192 \u4e00\u76f4\u88ab\u653e\u56de\u961f\u5217\u5934\u90e8 \u2192 \u6d88\u8d39\u8005\u4e00\u76f4\u62ff\u5230\u540c\u4e00\u6761\u6d88\u606f \u2192 CPU 100% \u6253\u6ee1\u63a8\u8350\u505a\u6cd5\uff1a<\/p>\n\n\n\n
      \n
    • \u4e34\u65f6\u6027\u9519\u8bef\uff08\u7f51\u7edc\u6296\u52a8\u3001\u6570\u636e\u5e93\u9501\uff09 \u2192 requeue=true + \u8bbe\u7f6e\u91cd\u8bd5\u6b21\u6570\u4e0a\u9650<\/li>\n\n\n\n
    • \u4e1a\u52a1\u9519\u8bef\uff08\u53c2\u6570\u975e\u6cd5\u3001\u6570\u636e\u4e0d\u5408\u6cd5\uff09 \u2192 requeue=false + \u8fdb\u5165\u6b7b\u4fe1\u961f\u5217<\/li>\n<\/ul>\n\n\n\n
      3. \u6b7b\u4fe1\u961f\u5217\uff08Dead Letter Exchange, DLX\uff09\u4e0e\u62d2\u7edd\u7684\u5173\u7cfb\u5f53\u6d88\u606f\u88ab\u62d2\u7edd\uff08requeue=false\uff09\u6216\u6ee1\u8db3\u6b7b\u4fe1\u6761\u4ef6\u65f6\uff0c\u4f1a\u88ab\u8def\u7531\u5230\u6b7b\u4fe1\u4ea4\u6362\u673a\uff08DLX\uff09\uff0c\u518d\u8fdb\u5165\u6b7b\u4fe1\u961f\u5217\u3002\u89e6\u53d1\u6b7b\u4fe1\u7684\u56db\u79cd\u60c5\u51b5\uff1a<\/p>\n\n\n\n
        \n
      1. \u6d88\u8d39\u8005\u8c03\u7528 basic.reject \/ basic.nack \u4e14 requeue=false<\/li>\n\n\n\n
      2. \u6d88\u606f\u5728\u961f\u5217\u4e2d\u5b58\u6d3b\u65f6\u95f4\u8d85\u8fc7 TTL\uff08x-message-ttl\uff09<\/li>\n\n\n\n
      3. \u961f\u5217\u957f\u5ea6\u8d85\u8fc7\u6700\u5927\u503c\uff08x-max-length\uff09<\/li>\n\n\n\n
      4. \u6d88\u606f\u88ab\u624b\u52a8\u8bbe\u7f6e\u4e3a\u6b7b\u4fe1\uff08x-dead-letter-routing-key\uff09<\/li>\n<\/ol>\n\n\n\n
        \u6b7b\u4fe1\u961f\u5217\u5178\u578b\u914d\u7f6e\uff08\u6700\u5e38\u7528\uff09\uff1a<\/p>\n\n\n\n
        java<\/p>\n\n\n
        \n\/\/ 1. \u6b63\u5e38\u4e1a\u52a1\u961f\u5217\u7ed1\u5b9a\u6b7b\u4fe1\u4ea4\u6362\u673a\u548c\u6b7b\u4fe1\u8def\u7531\u952e\nMap&lt;String, Object> args = new HashMap&lt;>();\nargs.put("x-dead-letter-exchange", "dlx.exchange");\nargs.put("x-dead-letter-routing-key", "dlx.routing.key");\n\n\/\/ 2. \u58f0\u660e\u6b7b\u4fe1\u4ea4\u6362\u673a\uff08\u901a\u5e38\u662f fanout \u6216 topic\uff09\nchannel.exchangeDeclare("dlx.exchange", "direct", true);\n\n\/\/ 3. \u58f0\u660e\u6b7b\u4fe1\u961f\u5217\nchannel.queueDeclare("dlx.queue", true, false, false, null);\n\n\/\/ 4. \u7ed1\u5b9a\u6b7b\u4fe1\u961f\u5217\u5230\u6b7b\u4fe1\u4ea4\u6362\u673a\nchannel.queueBind("dlx.queue", "dlx.exchange", "dlx.routing.key");\n<\/pre><\/div>\n\n\n
        4. \u62d2\u7edd\u673a\u5236\u7684\u5e38\u89c1\u4f7f\u7528\u6a21\u5f0f\uff08\u63a8\u8350\u5b9e\u8df5\uff09<\/p>\n\n\n\n
        \u573a\u666f<\/th>\u63a8\u8350\u505a\u6cd5<\/th>\u4ee3\u7801\u793a\u4f8b\uff08Java\uff09<\/th><\/tr>
        \u53ef\u91cd\u8bd5\u7684\u4e34\u65f6\u5931\u8d25<\/td>\u8bbe\u7f6e\u91cd\u8bd5\u6b21\u6570\u4e0a\u9650 + \u5ef6\u8fdf\u91cd\u8bd5\uff08Dead Letter + TTL\uff09<\/td>\u4e1a\u52a1\u5931\u8d25 \u2192 Nack(requeue=true) \u2192 \u8fbe\u5230\u4e0a\u9650 \u2192 \u8fdb\u5165\u6b7b\u4fe1<\/td><\/tr>
        \u4e0d\u53ef\u91cd\u8bd5\u7684\u4e1a\u52a1\u9519\u8bef<\/td>\u76f4\u63a5\u62d2\u7edd\u4e14\u4e0d\u91cd\u56de\u961f\u5217\uff0c\u8fdb\u5165\u6b7b\u4fe1\u961f\u5217<\/td>channel.basicNack(deliveryTag, false, false);<\/td><\/tr>
        \u6279\u91cf\u786e\u8ba4 + \u90e8\u5206\u5931\u8d25<\/td>\u6279\u91cf Nack\uff0c\u5931\u8d25\u7684\u6d88\u606f\u5355\u72ec\u5904\u7406<\/td>channel.basicNack(deliveryTag, true, false);<\/td><\/tr>
        \u6d41\u63a7 \/ \u9650\u6d41<\/td>\u62d2\u7edd + requeue=true\uff08\u8ba9\u6d88\u606f\u7559\u5728\u961f\u5217\uff09<\/td>\u961f\u5217\u79ef\u538b\u4e25\u91cd \u2192 Nack(requeue=true)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        5. \u62d2\u7edd vs Ack vs \u624b\u52a8\u91cd\u6295<\/p>\n\n\n\n
        \u64cd\u4f5c<\/th>\u6d88\u606f\u72b6\u6001<\/th>\u662f\u5426\u8fdb\u5165\u6b7b\u4fe1<\/th>\u662f\u5426\u53ef\u91cd\u56de\u961f\u5217<\/th>\u63a8\u8350\u573a\u666f<\/th><\/tr>
        basic.ack<\/td>\u6210\u529f\u6d88\u8d39\uff0c\u79fb\u9664<\/td>\u5426<\/td>\u2014<\/td>\u6b63\u5e38\u6d88\u8d39\u5b8c\u6210<\/td><\/tr>
        basic.reject<\/td>\u62d2\u7edd\uff0c\u53ef\u91cd\u56de\/\u6b7b\u4fe1<\/td>\u53ef<\/td>\u53ef\u63a7<\/td>\u5931\u8d25\u5904\u7406<\/td><\/tr>
        basic.nack<\/td>\u6279\u91cf\u62d2\u7edd<\/td>\u53ef<\/td>\u53ef\u63a7<\/td>\u6279\u91cf\u6d88\u8d39\u573a\u666f<\/td><\/tr>
        \u4e0d ack \u4e0d reject<\/td>\u6d88\u606f\u4fdd\u6301 unacked \u72b6\u6001<\/td>\u5426<\/td>\u2014<\/td>\u6d88\u8d39\u8005\u5d29\u6e83\uff0c\u6d88\u606f\u91cd\u65b0\u6295\u9012<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        6. \u6700\u4f73\u5b9e\u8df5\u603b\u7ed3\uff082025 \u5e74\u751f\u4ea7\u7ea7\u5efa\u8bae\uff09<\/p>\n\n\n\n
          \n
        1. \u6c38\u8fdc\u4e0d\u8981\u65e0\u9650\u5236\u5730 requeue=true\uff0c\u5fc5\u987b\u8bbe\u7f6e\u91cd\u8bd5\u6b21\u6570\u4e0a\u9650\uff08\u5e38\u89c1 3~10 \u6b21\uff09<\/li>\n\n\n\n
        2. \u4e1a\u52a1\u9519\u8bef\u4e00\u5f8b requeue=false + \u6b7b\u4fe1\u961f\u5217\uff08\u8bb0\u5f55\u65e5\u5fd7\u3001\u544a\u8b66\u3001\u4eba\u5de5\u5e72\u9884\uff09<\/li>\n\n\n\n
        3. \u4f7f\u7528\u6b7b\u4fe1 + TTL \u5b9e\u73b0\u5ef6\u8fdf\u91cd\u8bd5\uff08\u5ef6\u8fdf\u961f\u5217\uff09<\/li>\n\n\n\n
        4. \u76d1\u63a7 unacked \u6d88\u606f\u6570\uff08channel.basicQos + \u62d2\u7edd\u8fc7\u591a\u8bf4\u660e\u6d88\u8d39\u80fd\u529b\u4e0d\u8db3\uff09<\/li>\n\n\n\n
        5. \u751f\u4ea7\u73af\u5883\u7edf\u4e00\u914d\u7f6e\u6b7b\u4fe1\u4ea4\u6362\u673a\uff08\u6240\u6709\u961f\u5217\u90fd\u5e26\u6b7b\u4fe1\uff09<\/li>\n<\/ol>\n\n\n\n
          7. \u5e38\u89c1\u95ee\u9898 & \u89e3\u51b3\u65b9\u6848<\/p>\n\n\n\n
          \u95ee\u9898<\/th>\u539f\u56e0<\/th>\u89e3\u51b3\u529e\u6cd5<\/th><\/tr>
          \u6d88\u606f\u4e00\u76f4\u5728\u961f\u5217\u91cc\u5faa\u73af<\/td>requeue=true \u65e0\u4e0a\u9650<\/td>\u589e\u52a0\u91cd\u8bd5\u8ba1\u6570\uff0c\u8d85\u9650\u8fdb\u5165\u6b7b\u4fe1<\/td><\/tr>
          \u6b7b\u4fe1\u961f\u5217\u6ca1\u6536\u5230\u6d88\u606f<\/td>\u6ca1\u914d\u7f6e\u6b7b\u4fe1\u4ea4\u6362\u673a\/\u8def\u7531\u952e<\/td>\u68c0\u67e5\u961f\u5217\u53c2\u6570 x-dead-letter-exchange<\/td><\/tr>
          \u6d88\u8d39\u8005\u5d29\u6e83\u540e\u6d88\u606f\u4e22\u5931<\/td>\u6ca1 ack \u4e5f\u6ca1 reject<\/td>\u786e\u4fdd\u6d88\u8d39\u903b\u8f91\u6709 try-finally ack\/reject<\/td><\/tr>
          \u6279\u91cf\u6d88\u8d39\u65f6\u90e8\u5206\u6210\u529f\u90e8\u5206\u5931\u8d25<\/td>ack \u4e86\u5c31\u5168\u6210\u529f<\/td>\u5931\u8d25\u6d88\u606f\u5355\u72ec Nack(multiple=false)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
          \u4e00\u53e5\u8bdd\u603b\u7ed3\uff1a
          RabbitMQ \u7684\u62d2\u7edd\u673a\u5236\u6838\u5fc3\u662f\u201c\u62d2\u7edd = \u4e1a\u52a1\u51b3\u7b56\u70b9\u201d\uff0crequeue \u51b3\u5b9a\u91cd\u8bd5\uff0c\u6b7b\u4fe1\u51b3\u5b9a\u5f52\u5bbf\u3002\u6b63\u786e\u4f7f\u7528\u62d2\u7edd\u673a\u5236 + \u6b7b\u4fe1\u961f\u5217\uff0c\u80fd\u5927\u5e45\u63d0\u5347\u6d88\u606f\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u548c\u53ef\u8fd0\u7ef4\u6027\u3002\u5982\u679c\u4f60\u6709\u5177\u4f53\u7684\u4e1a\u52a1\u573a\u666f\uff08\u6bd4\u5982\u5ef6\u8fdf\u91cd\u8bd5\u3001\u5e42\u7b49\u3001\u91cd\u8bd5\u7b56\u7565\uff09\uff0c\u6211\u53ef\u4ee5\u5e2e\u4f60\u5199\u66f4\u8be6\u7ec6\u7684\u914d\u7f6e\u548c\u4ee3\u7801\u793a\u4f8b\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
          \u4e00\u6587\u8bb2\u900f RabbitMQ \u6d88\u606f\u961f\u5217\u4e2d\u7684\u62d2\u7edd\uff08Reject\uff09\u673a\u5236\uff08\u5305\u542b Nack… Continue Reading →<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-864","post","type-post","status-publish","format-standard","hentry","category-12"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/864","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/comments?post=864"}],"version-history":[{"count":1,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/864\/revisions"}],"predecessor-version":[{"id":865,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/864\/revisions\/865"}],"wp:attachment":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/media?parent=864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/categories?post=864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/tags?post=864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}