{"id":185060,"date":"2024-11-10T18:24:19","date_gmt":"2024-11-10T10:24:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185060\/"},"modified":"2024-11-10T18:24:20","modified_gmt":"2024-11-10T10:24:20","slug":"%e4%bd%bf%e7%94%a8redis%e9%8e%96%e7%8d%b2%e5%8f%96%e4%b8%a6%e7%99%bc%e8%a8%aa%e5%95%8f%e6%ac%8a%e5%88%a9%ef%bc%88redis%e9%8e%96%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e5%bc%8f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185060\/","title":{"rendered":"\u4f7f\u7528Redis\u9396\u7372\u53d6\u4e26\u767c\u8a2a\u554f\u6b0a\u5229\uff08redis\u9396\u7684\u4f7f\u7528\u65b9\u5f0f\uff09"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8redis%e9%8e%96%e7%8d%b2%e5%8f%96%e4%b8%a6%e7%99%bc%e8%a8%aa%e5%95%8f%e6%ac%8a%e5%88%a9%ef%bc%88redis%e9%8e%96%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e5%bc%8f%ef%bc%89-cJbIiGMzJa\">\u4f7f\u7528Redis\u9396\u7372\u53d6\u4e26\u767c\u8a2a\u554f\u6b0a\u5229\uff08Redis\u9396\u7684\u4f7f\u7528\u65b9\u5f0f\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u4e26\u767c\u8a2a\u554f\u662f\u4e00\u500b\u5e38\u898b\u7684\u6311\u6230\u3002\u7576\u591a\u500b\u9032\u7a0b\u6216\u7dda\u7a0b\u540c\u6642\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u7cfb\u7d71\u5d29\u6f70\u3002\u70ba\u4e86\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0cRedis\u9396\u4f5c\u70ba\u4e00\u7a2e\u8f15\u91cf\u7d1a\u7684\u9396\u6a5f\u5236\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u4e26\u767c\u8a2a\u554f\u6b0a\u9650\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eRedis\u9396\u7684\u4f7f\u7528\u65b9\u5f0f\u53ca\u5176\u5be6\u73fe\u539f\u7406\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e9%8e%96%ef%bc%9f-cJbIiGMzJa\">\u4ec0\u9ebc\u662fRedis\u9396\uff1f<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u57fa\u65bcRedis\u6578\u64da\u5eab\u7684\u9396\u6a5f\u5236\uff0c\u65e8\u5728\u63a7\u5236\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u5b83\u901a\u5e38\u7528\u65bc\u78ba\u4fdd\u5728\u591a\u500b\u5ba2\u6236\u7aef\u4e4b\u9593\u7684\u64cd\u4f5c\u662f\u4e92\u65a5\u7684\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u6027\u3002Redis\u9396\u7684\u512a\u52e2\u5728\u65bc\u5176\u9ad8\u6548\u6027\u548c\u7c21\u55ae\u6027\uff0c\u7279\u5225\u9069\u5408\u65bc\u9700\u8981\u5feb\u901f\u97ff\u61c9\u7684\u61c9\u7528\u5834\u666f\u3002<\/p>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86-cJbIiGMzJa\">Redis\u9396\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>Redis\u9396\u7684\u57fa\u672c\u539f\u7406\u662f\u5229\u7528Redis\u7684\u539f\u5b50\u64cd\u4f5c\u4f86\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\u3002\u7576\u4e00\u500b\u9032\u7a0b\u9700\u8981\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u6642\uff0c\u5b83\u6703\u5617\u8a66\u7372\u53d6\u9396\u3002\u5982\u679c\u9396\u5df2\u88ab\u5176\u4ed6\u9032\u7a0b\u7372\u53d6\uff0c\u5247\u8a72\u9032\u7a0b\u9700\u8981\u7b49\u5f85\u6216\u91cd\u8a66\u3002\u4ee5\u4e0b\u662fRedis\u9396\u7684\u57fa\u672c\u6d41\u7a0b\uff1a<\/p>\n<ol>\n<li>\u5617\u8a66\u7372\u53d6\u9396\uff1a\u4f7f\u7528SETNX\u547d\u4ee4\u8a2d\u7f6e\u4e00\u500b\u9375\uff0c\u8a72\u9375\u7684\u503c\u901a\u5e38\u662f\u7576\u524d\u6642\u9593\u6233\u52a0\u4e0a\u9396\u7684\u904e\u671f\u6642\u9593\u3002<\/li>\n<li>\u6aa2\u67e5\u9396\u7684\u6709\u6548\u6027\uff1a\u5982\u679c\u7372\u53d6\u6210\u529f\uff0c\u5247\u9032\u7a0b\u53ef\u4ee5\u5b89\u5168\u5730\u8a2a\u554f\u5171\u4eab\u8cc7\u6e90\u3002<\/li>\n<li>\u91cb\u653e\u9396\uff1a\u64cd\u4f5c\u5b8c\u6210\u5f8c\uff0c\u9032\u7a0b\u9700\u8981\u522a\u9664\u9396\u7684\u9375\uff0c\u4ee5\u91cb\u653e\u8cc7\u6e90\u3002<\/li>\n<\/ol>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e5%af%a6%e7%8f%be%e7%a4%ba%e4%be%8b-cJbIiGMzJa\">Redis\u9396\u7684\u5be6\u73fe\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Redis\u9396\u7684\u7c21\u55ae\u793a\u4f8b\uff0c\u4f7f\u7528Python\u8a9e\u8a00\u548credis-py\u5eab\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>import redis\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\ndef acquire_lock(lock_name, acquire_time=10):\n    identifier = str(time.time())\n    lock = r.set(lock_name, identifier, nx=True, ex=acquire_time)\n    return lock, identifier\n\ndef release_lock(lock_name, identifier):\n    pipe = r.pipeline(True)\n    while True:\n        try:\n            pipe.watch(lock_name)\n            if pipe.get(lock_name) == identifier:\n                pipe.multi()\n                pipe.delete(lock_name)\n                pipe.execute()\n                return True\n            pipe.unwatch()\n            break\n        except redis.WatchError:\n            pass\n    return False\n\n# \u4f7f\u7528\u9396\nlock_name = \"my_lock\"\nlock, identifier = acquire_lock(lock_name)\n\nif lock:\n    try:\n        # \u57f7\u884c\u9700\u8981\u9396\u5b9a\u7684\u64cd\u4f5c\n        print(\"\u7372\u53d6\u9396\u6210\u529f\uff0c\u57f7\u884c\u64cd\u4f5c...\")\n        time.sleep(5)  # \u6a21\u64ec\u64cd\u4f5c\n    finally:\n        release_lock(lock_name, identifier)\n        print(\"\u91cb\u653e\u9396\u6210\u529f\")\nelse:\n    print(\"\u7372\u53d6\u9396\u5931\u6557\")\n<\/code><\/pre>\n<h2 id=\"redis%e9%8e%96%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-cJbIiGMzJa\">Redis\u9396\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u9396\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u9396\u7684\u904e\u671f\u6642\u9593\uff1a<\/strong>\u70ba\u4e86\u9632\u6b62\u6b7b\u9396\uff0c\u61c9\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u78ba\u4fdd\u5373\u4f7f\u5728\u7570\u5e38\u60c5\u6cc1\u4e0b\uff0c\u9396\u4e5f\u80fd\u88ab\u91cb\u653e\u3002<\/li>\n<li><strong>\u9396\u7684\u552f\u4e00\u6027\uff1a<\/strong>\u78ba\u4fdd\u6bcf\u500b\u9396\u7684\u552f\u4e00\u6027\uff0c\u4ee5\u907f\u514d\u4e0d\u540c\u9032\u7a0b\u4e4b\u9593\u7684\u5e72\u64fe\u3002<\/li>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>\u5728\u91cb\u653e\u9396\u6642\uff0c\u61c9\u8003\u616e\u5230\u53ef\u80fd\u7684\u932f\u8aa4\u60c5\u6cc1\uff0c\u78ba\u4fdd\u9396\u80fd\u5920\u6b63\u78ba\u91cb\u653e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cJbIiGMzJa\">\u7e3d\u7d50<\/h2>\n<p>Redis\u9396\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u4e26\u767c\u63a7\u5236\u6a5f\u5236\uff0c\u80fd\u5920\u6709\u6548\u5730\u7ba1\u7406\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u6b0a\u9650\u3002\u901a\u904e\u7c21\u55ae\u7684\u539f\u5b50\u64cd\u4f5c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u9396\u7684\u7372\u53d6\u548c\u91cb\u653e\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002\u5728\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u6642\uff0c\u8003\u616e\u5230Redis\u7684\u9ad8\u6027\u80fd\u7279\u6027\uff0c\u53ef\u4ee5\u70ba\u60a8\u7684\u61c9\u7528\u63d0\u4f9b\u66f4\u597d\u7684\u652f\u6301\u3002\u7121\u8ad6\u662f\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0cRedis\u9396\u90fd\u80fd\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u4e26\u767c\u8a2a\u554f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528Redis\u9396\u4f86\u7372\u53d6\u4e26\u767c\u8a2a\u554f\u6b0a\u5229\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u7cfb\u7d71\u7a69\u5b9a\u6027\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-185060","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185060","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=185060"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185060\/revisions"}],"predecessor-version":[{"id":185061,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185060\/revisions\/185061"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}