{"id":201838,"date":"2025-05-10T11:14:44","date_gmt":"2025-05-10T03:14:44","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201838\/"},"modified":"2025-05-10T11:14:44","modified_gmt":"2025-05-10T03:14:44","slug":"python%e4%b8%adsub-pub%e6%9c%ba%e5%88%b6%e6%80%8e%e4%b9%88%e5%ae%9e%e7%8e%b0redis%e7%9a%84%e8%ae%a2%e9%98%85%e4%b8%8e%e5%8f%91%e5%b8%83","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201838\/","title":{"rendered":"python\u4e2dsub-pub\u673a\u5236\u600e\u4e48\u5b9e\u73b0Redis\u7684\u8ba2\u9605\u4e0e\u53d1\u5e03"},"content":{"rendered":"

<\/b> <\/p>\n

python\u4e2dsub-pub\u673a\u5236\u600e\u4e48\u5b9e\u73b0Redis\u7684\u8ba2\u9605\u4e0e\u53d1\u5e03<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u6709\u5fd7\u8005\uff0c\u4e8b\u7adf\u6210\uff01\u5982\u679c\u4f60\u5728\u5b66\u4e60\u6570\u636e\u5e93<\/span>\uff0c\u90a3\u4e48\u672c\u6587\u300apython\u4e2dsub-pub\u673a\u5236\u600e\u4e48\u5b9e\u73b0Redis\u7684\u8ba2\u9605\u4e0e\u53d1\u5e03\u300b<\/span>\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff01\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec<\/span>\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/span><\/p>\n

\u5148\u4ecb\u7ecd\u4e00\u4e0bredis\u7684pub\/sub\u529f\u80fd\uff1a<\/p>\n

The Pub\/Sub feature, which stands for Publish and Subscribe, provides a mechanism for publishing and subscribing.\u3002\u57fa\u4e8e\u4e8b\u4ef6\u7684\u7cfb\u7edf\u4e2d\uff0cPub\/Sub\u662f\u76ee\u524d\u5e7f\u6cdb\u4f7f\u7528\u7684\u901a\u4fe1\u6a21\u578b\uff0c\u5b83\u91c7\u7528\u4e8b\u4ef6\u4f5c\u4e3a\u57fa\u672c\u7684\u901a\u4fe1\u673a\u5236\uff0c\u63d0\u4f9b\u5927\u89c4\u6a21\u7cfb\u7edf\u6240\u8981\u6c42\u7684\u677e\u6563\u8026\u5408\u7684\u4ea4\u4e92\u6a21\u5f0f\uff1a\u8ba2\u9605\u8005(\u5982\u5ba2\u6237\u7aef)\u4ee5\u4e8b\u4ef6\u8ba2\u9605\u7684\u65b9\u5f0f\u8868\u8fbe\u51fa\u5b83\u6709\u5174\u8da3\u63a5\u6536\u7684\u4e00\u4e2a\u4e8b\u4ef6\u6216\u4e00\u7c7b\u4e8b\u4ef6\uff1b\u53d1\u5e03\u8005(\u5982\u670d\u52a1\u5668)\u53ef\u5c06\u8ba2\u9605\u8005\u611f\u5174\u8da3\u7684\u4e8b\u4ef6\u968f\u65f6\u901a\u77e5\u76f8\u5173\u8ba2\u9605\u8005\u3002<\/p>\n

\u901a\u4fd7\u6765\u8bb2\uff0c\u5c31\u662f\u8bf4\u6211sub\u7aef\uff08\u8ba2\u9605\u8005\uff09\u4e00\u76f4\u76d1\u542c\u7740\uff0c\u4e00\u65e6pub\u7aef\uff08\u53d1\u5e03\u8005\uff09\u53d1\u5e03\u4e86\u6d88\u606f\uff0c\u90a3\u4e48\u6211\u5c31\u63a5\u6536\u8fc7\u6765\uff0c\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5148\u662f\u53d1\u5e03\u8005\uff1a<\/p>\n

#coding:utf-8\nimport time\nimport redis\n \nnumber_list = ['300033', '300032', '300031', '300030']\nsignal = ['1', '-1', '1', '-1']\n \nrc = redis.StrictRedis(host='***', port='6379', db=3, password='********')\nfor i in range(len(number_list)):\n    value_new = str(number_list[i]) + ' ' + str(signal[i])\n    rc.publish(\"liao\", value_new)  #\u53d1\u5e03\u6d88\u606f\u5230liao<\/pre>\n
\u63a5\u7740\u6211\u4eec\u6765\u770b\u770b\u8ba2\u9605\u8005\uff1a<\/p>\n
#coding:utf-8\nimport time\nimport redis\n \nrc = redis.StrictRedis(host='****', port='6379', db=3, password='******')\nps = rc.pubsub()\nps.subscribe('liao')  #\u4eceliao\u8ba2\u9605\u6d88\u606f\nfor item in ps.listen():        #\u76d1\u542c\u72b6\u6001\uff1a\u6709\u6d88\u606f\u53d1\u5e03\u4e86\u5c31\u62ff\u8fc7\u6765\n    if item['type'] == 'message':\n        print item['channel']\n        print item['data']<\/pre>\n
\u5173\u4e8e\u6570\u636e\u7ed3\u6784\uff0c\u4e5f\u5c31\u662fitem\uff0c\u662f\u7c7b\u4f3c\u4e8e\uff1a{‘pattern’: None, ‘type’: ‘message’, ‘channel’: ‘liao’, ‘data’: ‘300033 1’}\u8fd9\u6837\u7684\uff0c\u6240\u4ee5\u53ef\u4ee5\u901a\u8fc7channel\u6765\u5224\u65ad\u8fd9\u4e2a\u6d88\u606f\u662f\u5c5e\u4e8e\u54ea\u4e00\u4e2a\u961f\u5217\u91cc\u7684\u3002\uff08\u8fd0\u884c\u7a0b\u5e8f\u7684\u65f6\u5019\uff0c\u5148\u8fd0\u884c\u8ba2\u9605\u8005\uff0c\u5728\u8fd0\u884c\u53d1\u5e03\u8005\u7a0b\u5e8f\uff09<\/p>\n
\u603b\u7ed3\uff0c\u8981\u70b9\u6709\u4e24\u4e2a\uff1a<\/p>\n
    \n
  • \n
    \u4e00\u662f\u8fde\u63a5\u65b9\u5f0f\u3002\u4f7f\u7528python\u8fde\u63a5redis\u6709\u4e09\u79cd\u65b9\u5f0f\uff1a\u2460\u4f7f\u7528\u5e93\u4e2d\u7684Redis\u7c7b\uff08\u6216StrictRedis\u7c7b\uff0c\u5176\u5b9e\u5dee\u4e0d\u591a\uff09\uff1b\u2461\u4f7f\u7528ConnectionPool\u8fde\u63a5\u6c60\uff08\u53ef\u4fdd\u6301\u957f\u8fde\u63a5\uff09\uff1b\u2462\u4f7f\u7528Sentinel\u7c7b\uff08\u5982\u679c\u6709\u591a\u4e2aredis\u505a\u96c6\u7fa4\u65f6\uff0c\u7a0b\u5e8f\u4f1a\u81ea\u5df1\u9009\u62e9\u4e00\u4e2a\u5408\u9002\u7684\u8fde\u63a5\uff09\u3002<\/p>\n<\/li>\n
  • \n
    \u4e8c\u662f\u8ba2\u9605\u65b9\u6cd5\u3002\u8fd9\u91cc\u4f7f\u7528\u7684\u662fStrictRedis\u7c7b\u4e2d\u7684pubsub\u65b9\u6cd5\u3002\u4e00\u65e6\u8fde\u63a5\u6210\u529f\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528subscribe\u6216psubscribe\u65b9\u6cd5\u6765\u8ba2\u9605Redis\u6d88\u606f\u3002\u5176\u4e2dsubscribe\u662f\u8ba2\u9605\u4e00\u4e2a\u9891\u9053\uff0cpsubscribe\u53ef\u8ba2\u9605\u591a\u4e2a\u9891\u9053\uff08\u8fd9\u6837\u5199\u7684\u65f6\u5019\uff0c\u4f5c\u4e3a\u53c2\u6570\u7684\u9891\u9053\u5e94\u8be5\u662f\u4e00\u4e2a\u5217\u8868\uff09\u3002\u4e4b\u540e\u5c31\u53ef\u4ee5\u5f00\u59cb\u76d1\u542c\u4e86\u3002<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
    python\u4e2dsub-pub\u673a\u5236...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201838","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201838","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201838"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201838\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}