{"id":159799,"date":"2024-11-03T17:45:23","date_gmt":"2024-11-03T09:45:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159799\/"},"modified":"2024-11-03T17:45:24","modified_gmt":"2024-11-03T09:45:24","slug":"%e7%b4%85%e8%89%b2%e5%84%aa%e5%85%88redis%e9%9a%8a%e5%88%97%e6%90%b6%e8%b3%bc%e6%94%bb%e7%95%a5%ef%bc%88redis%e9%9a%8a%e5%88%97%e5%81%9a%e6%90%b6%e8%b3%bc%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159799\/","title":{"rendered":"\u7d05\u8272\u512a\u5148Redis\u968a\u5217\u6436\u8cfc\u653b\u7565\uff08redis\u968a\u5217\u505a\u6436\u8cfc\uff09"},"content":{"rendered":"<h1 id=\"%e7%b4%85%e8%89%b2%e5%84%aa%e5%85%88redis%e9%9a%8a%e5%88%97%e6%90%b6%e8%b3%bc%e6%94%bb%e7%95%a5%ef%bc%88redis%e9%9a%8a%e5%88%97%e5%81%9a%e6%90%b6%e8%b3%bc%ef%bc%89-rHAfPtxVjg\">\u7d05\u8272\u512a\u5148Redis\u968a\u5217\u6436\u8cfc\u653b\u7565\uff08redis\u968a\u5217\u505a\u6436\u8cfc\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u96fb\u5b50\u5546\u52d9\u74b0\u5883\u4e2d\uff0c\u6436\u8cfc\u71b1\u9580\u5546\u54c1\u5df2\u6210\u70ba\u4e00\u7a2e\u5e38\u898b\u73fe\u8c61\u3002\u5c24\u5176\u662f\u5728\u9650\u91cf\u5546\u54c1\u6216\u7279\u50f9\u5546\u54c1\u63a8\u51fa\u6642\uff0c\u5982\u4f55\u5feb\u901f\u4e14\u6709\u6548\u5730\u6436\u8cfc\u6210\u70ba\u4e86\u8a31\u591a\u6d88\u8cbb\u8005\u548c\u958b\u767c\u8005\u95dc\u6ce8\u7684\u7126\u9ede\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u56e0\u5176\u5feb\u901f\u7684\u8b80\u5beb\u6027\u80fd\u548c\u7c21\u55ae\u7684\u64cd\u4f5c\uff0c\u6210\u70ba\u4e86\u5be6\u73fe\u6436\u8cfc\u968a\u5217\u7684\u7406\u60f3\u9078\u64c7\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528Redis\u968a\u5217\u4f86\u5be6\u73fe\u6436\u8cfc\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\u548c\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-rHAfPtxVjg\">Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u662f\u4e00\u7a2e\u958b\u6e90\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\u3002\u5176\u9ad8\u6548\u7684\u6027\u80fd\u4f7f\u5f97Redis\u5728\u9700\u8981\u5feb\u901f\u6578\u64da\u5b58\u53d6\u7684\u5834\u666f\u4e2d\u5ee3\u6cdb\u61c9\u7528\u3002\u5c0d\u65bc\u6436\u8cfc\u7cfb\u7d71\u4f86\u8aaa\uff0cRedis\u7684\u5217\u8868\uff08List\uff09\u548c\u6709\u5e8f\u96c6\u5408\uff08Sorted Set\uff09\u7279\u5225\u9069\u5408\u7528\u4f86\u5be6\u73fe\u968a\u5217\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e6%90%b6%e8%b3%bc%e7%b3%bb%e7%b5%b1%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%9e%b6%e6%a7%8b-rHAfPtxVjg\">\u6436\u8cfc\u7cfb\u7d71\u7684\u57fa\u672c\u67b6\u69cb<\/h2>\n<p>\u4e00\u500b\u5178\u578b\u7684\u6436\u8cfc\u7cfb\u7d71\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\uff1a<\/p>\n<ul>\n<li>\u7528\u6236\u8acb\u6c42\uff1a\u7528\u6236\u767c\u8d77\u6436\u8cfc\u8acb\u6c42\u3002<\/li>\n<li>\u968a\u5217\u7ba1\u7406\uff1a\u5c07\u8acb\u6c42\u653e\u5165Redis\u968a\u5217\u4e2d\u9032\u884c\u7ba1\u7406\u3002<\/li>\n<li>\u5eab\u5b58\u6aa2\u67e5\uff1a\u6aa2\u67e5\u5546\u54c1\u5eab\u5b58\uff0c\u78ba\u5b9a\u662f\u5426\u80fd\u5920\u6eff\u8db3\u8acb\u6c42\u3002<\/li>\n<li>\u8a02\u55ae\u8655\u7406\uff1a\u6210\u529f\u6436\u8cfc\u5f8c\uff0c\u751f\u6210\u8a02\u55ae\u4e26\u66f4\u65b0\u5eab\u5b58\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e5%af%a6%e7%8f%be%e6%90%b6%e8%b3%bc%e9%9a%8a%e5%88%97-rHAfPtxVjg\">\u4f7f\u7528Redis\u5be6\u73fe\u6436\u8cfc\u968a\u5217<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528Redis\u5be6\u73fe\u6436\u8cfc\u968a\u5217\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e5%88%9d%e5%a7%8b%e5%8c%96redis%e9%80%a3%e6%8e%a5-rHAfPtxVjg\">1. \u521d\u59cb\u5316Redis\u9023\u63a5<\/h3>\n<pre><code>import redis\n\n# \u9023\u63a5\u5230Redis\u670d\u52d9\u5668\nr = redis.StrictRedis(host='localhost', port=6379, db=0)<\/code><\/pre>\n<h3 id=\"2-%e5%b0%87%e8%ab%8b%e6%b1%82%e6%94%be%e5%85%a5%e9%9a%8a%e5%88%97-rHAfPtxVjg\">2. \u5c07\u8acb\u6c42\u653e\u5165\u968a\u5217<\/h3>\n<pre><code>def add_to_queue(user_id, product_id):\n    # \u5c07\u7528\u6236\u8acb\u6c42\u653e\u5165Redis\u5217\u8868\n    r.lpush('purchase_queue', f\"{user_id}:{product_id}\")<\/code><\/pre>\n<h3 id=\"3-%e8%99%95%e7%90%86%e9%9a%8a%e5%88%97%e4%b8%ad%e7%9a%84%e8%ab%8b%e6%b1%82-rHAfPtxVjg\">3. \u8655\u7406\u968a\u5217\u4e2d\u7684\u8acb\u6c42<\/h3>\n<pre><code>def process_queue():\n    while True:\n        # \u5f9e\u968a\u5217\u4e2d\u53d6\u51fa\u8acb\u6c42\n        request = r.rpop('purchase_queue')\n        if request:\n            user_id, product_id = request.split(':')\n            if check_inventory(product_id):\n                create_order(user_id, product_id)\n            else:\n                notify_user(user_id, product_id)<\/code><\/pre>\n<h3 id=\"4-%e5%ba%ab%e5%ad%98%e6%aa%a2%e6%9f%a5%e8%88%87%e8%a8%82%e5%96%ae%e7%94%9f%e6%88%90-rHAfPtxVjg\">4. \u5eab\u5b58\u6aa2\u67e5\u8207\u8a02\u55ae\u751f\u6210<\/h3>\n<pre><code>def check_inventory(product_id):\n    # \u6aa2\u67e5\u5eab\u5b58\u908f\u8f2f\n    return True  # \u5047\u8a2d\u5eab\u5b58\u5145\u8db3\n\ndef create_order(user_id, product_id):\n    # \u8a02\u55ae\u751f\u6210\u908f\u8f2f\n    print(f\"Order created for user {user_id} for product {product_id}\")\n\ndef notify_user(user_id, product_id):\n    # \u901a\u77e5\u7528\u6236\u5eab\u5b58\u4e0d\u8db3\n    print(f\"User {user_id} notified: Product {product_id} is out of stock\")<\/code><\/pre>\n<h2 id=\"%e5%84%aa%e5%8c%96%e6%90%b6%e8%b3%bc%e7%b3%bb%e7%b5%b1%e7%9a%84%e6%8a%80%e5%b7%a7-rHAfPtxVjg\">\u512a\u5316\u6436\u8cfc\u7cfb\u7d71\u7684\u6280\u5de7<\/h2>\n<p>\u5728\u5be6\u73fe\u6436\u8cfc\u7cfb\u7d71\u6642\uff0c\u9084\u6709\u4e00\u4e9b\u512a\u5316\u6280\u5de7\u53ef\u4ee5\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u9650\u6d41\uff1a<\/strong>\u4f7f\u7528Redis\u7684\u8a08\u6578\u5668\u4f86\u9650\u5236\u6bcf\u500b\u7528\u6236\u7684\u8acb\u6c42\u6b21\u6578\uff0c\u9632\u6b62\u60e1\u610f\u6436\u8cfc\u3002<\/li>\n<li><strong>\u7570\u6b65\u8655\u7406\uff1a<\/strong>\u5c07\u8acb\u6c42\u8655\u7406\u653e\u5165\u80cc\u666f\u4efb\u52d9\u4e2d\uff0c\u6e1b\u5c11\u7528\u6236\u7b49\u5f85\u6642\u9593\u3002<\/li>\n<li><strong>\u7de9\u5b58\u5eab\u5b58\uff1a<\/strong>\u5c07\u5eab\u5b58\u4fe1\u606f\u7de9\u5b58\u5728Redis\u4e2d\uff0c\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u983b\u7e41\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-rHAfPtxVjg\">\u7d50\u8ad6<\/h2>\n<p>\u5229\u7528Redis\u5be6\u73fe\u6436\u8cfc\u968a\u5217\u662f\u4e00\u7a2e\u9ad8\u6548\u4e14\u53ef\u64f4\u5c55\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u901a\u904e\u5408\u7406\u7684\u67b6\u69cb\u8a2d\u8a08\u548c\u512a\u5316\u7b56\u7565\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u8655\u7406\u5927\u91cf\u7684\u6436\u8cfc\u8acb\u6c42\uff0c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u5c0d\u65bc\u5e0c\u671b\u5728\u9999\u6e2f\u5e02\u5834\u4e0a\u63d0\u4f9b\u7a69\u5b9a\u670d\u52d9\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u4f86\u90e8\u7f72Redis\u670d\u52d9\u5668\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u9ad8\u6027\u80fd\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u9748\u6d3b\u7684 <a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u80fd\u70ba\u60a8\u7684\u6436\u8cfc\u7cfb\u7d71\u63d0\u4f9b\u5f37\u6709\u529b\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u7d05\u8272\u512a\u5148Redis\u968a\u5217\u6436\u8cfc\u653b\u7565\uff0c\u63d0\u5347\u6436\u8cfc\u6548\u7387\uff0c\u8f15\u9b06\u61c9\u5c0d\u9ad8\u6d41\u91cf\u6436\u8cfc\u6d3b\u52d5\uff0c\u78ba\u4fdd\u6210\u529f\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-159799","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159799","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=159799"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159799\/revisions"}],"predecessor-version":[{"id":159800,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159799\/revisions\/159800"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=159799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=159799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=159799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}