{"id":159415,"date":"2024-11-03T14:19:20","date_gmt":"2024-11-03T06:19:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159415\/"},"modified":"2024-11-03T14:19:22","modified_gmt":"2024-11-03T06:19:22","slug":"%e7%b4%85%e8%89%b2%e7%99%bc%e4%bd%88%e7%a2%ba%e4%bf%9d%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%e7%9a%84%e5%87%bd%e6%95%b8%e8%aa%bf%e7%94%a8%ef%bc%88redis-%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%e5%87%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159415\/","title":{"rendered":"\u7d05\u8272\u767c\u4f48\u78ba\u4fdd\u7dda\u7a0b\u5b89\u5168\u7684\u51fd\u6578\u8abf\u7528\uff08redis \u7dda\u7a0b\u5b89\u5168\u51fd\u6578\uff09"},"content":{"rendered":"<h1 id=\"%e7%b4%85%e8%89%b2%e7%99%bc%e4%bd%88%e7%a2%ba%e4%bf%9d%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%e7%9a%84%e5%87%bd%e6%95%b8%e8%aa%bf%e7%94%a8%ef%bc%88redis-%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%e5%87%bd-yLxjCtmkRR\">\u7d05\u8272\u767c\u4f48\u78ba\u4fdd\u7dda\u7a0b\u5b89\u5168\u7684\u51fd\u6578\u8abf\u7528\uff08Redis \u7dda\u7a0b\u5b89\u5168\u51fd\u6578\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u4e00\u81f4\u6027\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u5834\u666f\u4e2d\u3002\u7136\u800c\uff0c\u7576\u591a\u500b\u7dda\u7a0b\u540c\u6642\u8a2a\u554f Redis \u6642\uff0c\u5982\u4f55\u78ba\u4fdd\u7dda\u7a0b\u5b89\u5168\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e Redis \u7684\u7dda\u7a0b\u5b89\u5168\u51fd\u6578\u53ca\u5176\u5728\u7d05\u8272\u767c\u4f48\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%ef%bc%9f-yLxjCtmkRR\">\u4ec0\u9ebc\u662f\u7dda\u7a0b\u5b89\u5168\uff1f<\/h2>\n<p>\u7dda\u7a0b\u5b89\u5168\u662f\u6307\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u5c0d\u5171\u4eab\u6578\u64da\u7684\u8a2a\u554f\u4e0d\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u932f\u8aa4\u7684\u72c0\u614b\u3002\u7576\u591a\u500b\u7dda\u7a0b\u540c\u6642\u8b80\u53d6\u548c\u5beb\u5165\u6578\u64da\u6642\uff0c\u5fc5\u9808\u63a1\u53d6\u9069\u7576\u7684\u63aa\u65bd\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u9396\u3001\u539f\u5b50\u64cd\u4f5c\u6216\u5176\u4ed6\u540c\u6b65\u6a5f\u5236\u3002<\/p>\n<h2 id=\"redis-%e7%9a%84%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%e6%80%a7-yLxjCtmkRR\">Redis \u7684\u7dda\u7a0b\u5b89\u5168\u6027<\/h2>\n<p>Redis \u672c\u8eab\u662f\u55ae\u7dda\u7a0b\u7684\uff0c\u9019\u610f\u5473\u8457\u5b83\u5728\u4efb\u4f55\u6642\u523b\u53ea\u8655\u7406\u4e00\u500b\u8acb\u6c42\u3002\u9019\u7a2e\u8a2d\u8a08\u4f7f\u5f97 Redis \u5728\u8655\u7406\u8acb\u6c42\u6642\u5929\u7136\u5177\u5099\u7dda\u7a0b\u5b89\u5168\u6027\u3002\u7136\u800c\uff0c\u7576 Redis \u88ab\u7528\u4f5c\u591a\u7dda\u7a0b\u61c9\u7528\u7684\u5f8c\u7aef\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u8003\u616e\u5982\u4f55\u5b89\u5168\u5730\u8a2a\u554f Redis\u3002<\/p>\n<h3 id=\"%e7%b4%85%e8%89%b2%e7%99%bc%e4%bd%88%e6%a8%a1%e5%bc%8f-yLxjCtmkRR\">\u7d05\u8272\u767c\u4f48\u6a21\u5f0f<\/h3>\n<p>\u7d05\u8272\u767c\u4f48\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u6a21\u5f0f\uff0c\u901a\u5e38\u7528\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u5feb\u901f\u97ff\u61c9\u7684\u61c9\u7528\u4e2d\u3002\u5728\u9019\u7a2e\u6a21\u5f0f\u4e0b\uff0c\u61c9\u7528\u7a0b\u5e8f\u6703\u5c07\u8acb\u6c42\u767c\u9001\u5230 Redis\uff0c\u7136\u5f8c Redis \u6703\u5c07\u6578\u64da\u767c\u4f48\u5230\u6240\u6709\u8a02\u95b1\u8005\u3002\u9019\u7a2e\u6a21\u5f0f\u7684\u6311\u6230\u5728\u65bc\u5982\u4f55\u78ba\u4fdd\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\u5c0d Redis \u7684\u5b89\u5168\u8a2a\u554f\u3002<\/p>\n<h3 id=\"%e7%a2%ba%e4%bf%9d%e7%b7%9a%e7%a8%8b%e5%ae%89%e5%85%a8%e7%9a%84%e5%87%bd%e6%95%b8%e8%aa%bf%e7%94%a8-yLxjCtmkRR\">\u78ba\u4fdd\u7dda\u7a0b\u5b89\u5168\u7684\u51fd\u6578\u8abf\u7528<\/h3>\n<p>\u5728 Redis \u4e2d\uff0c\u6709\u5e7e\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u78ba\u4fdd\u7dda\u7a0b\u5b89\u5168\u7684\u51fd\u6578\u8abf\u7528\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u9023\u63a5\u6c60\uff1a<\/strong>\u901a\u904e\u4f7f\u7528\u9023\u63a5\u6c60\uff0c\u53ef\u4ee5\u70ba\u6bcf\u500b\u7dda\u7a0b\u5206\u914d\u4e00\u500b\u7368\u7acb\u7684 Redis \u9023\u63a5\uff0c\u5f9e\u800c\u907f\u514d\u591a\u500b\u7dda\u7a0b\u540c\u6642\u8a2a\u554f\u540c\u4e00\u9023\u63a5\u7684\u554f\u984c\u3002<\/li>\n<li><strong>\u4f7f\u7528\u9396\uff1a<\/strong>\u5728\u8a2a\u554f Redis \u4e4b\u524d\uff0c\u53ef\u4ee5\u4f7f\u7528\u9396\u4f86\u78ba\u4fdd\u540c\u4e00\u6642\u9593\u53ea\u6709\u4e00\u500b\u7dda\u7a0b\u53ef\u4ee5\u8a2a\u554f Redis\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4f7f\u7528 Redis \u7684 SETNX \u547d\u4ee4\u4f86\u5be6\u73fe\u3002<\/li>\n<li><strong>\u539f\u5b50\u64cd\u4f5c\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u4e00\u4e9b\u539f\u5b50\u64cd\u4f5c\uff0c\u5982 INCR \u548c DECR\uff0c\u9019\u4e9b\u64cd\u4f5c\u5728\u57f7\u884c\u6642\u4e0d\u6703\u88ab\u5176\u4ed6\u64cd\u4f5c\u6253\u65b7\uff0c\u5f9e\u800c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h4 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-yLxjCtmkRR\">\u793a\u4f8b\u4ee3\u78bc<\/h4>\n<pre><code>import redis\nimport threading\n\n# \u5275\u5efa Redis \u9023\u63a5\u6c60\npool = redis.ConnectionPool(host='localhost', port=6379, db=0)\n\n# \u7372\u53d6 Redis \u9023\u63a5\ndef access_redis():\n    r = redis.Redis(connection_pool=pool)\n    # \u4f7f\u7528 SETNX \u78ba\u4fdd\u7dda\u7a0b\u5b89\u5168\n    lock_key = \"lock_key\"\n    if r.setnx(lock_key, 1):\n        try:\n            # \u57f7\u884c Redis \u64cd\u4f5c\n            r.incr(\"counter\")\n        finally:\n            r.delete(lock_key)\n\n# \u5275\u5efa\u591a\u500b\u7dda\u7a0b\nthreads = []\nfor i in range(10):\n    t = threading.Thread(target=access_redis)\n    threads.append(t)\n    t.start()\n\nfor t in threads:\n    t.join()\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-yLxjCtmkRR\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u78ba\u4fdd\u5c0d Redis \u7684\u5b89\u5168\u8a2a\u554f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u901a\u904e\u4f7f\u7528\u9023\u63a5\u6c60\u3001\u9396\u548c\u539f\u5b50\u64cd\u4f5c\u7b49\u6280\u8853\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5be6\u73fe\u7dda\u7a0b\u5b89\u5168\u7684\u51fd\u6578\u8abf\u7528\u3002\u9019\u4e0d\u50c5\u80fd\u63d0\u9ad8\u61c9\u7528\u7684\u7a69\u5b9a\u6027\uff0c\u9084\u80fd\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u5728\u9999\u6e2f\u5efa\u7acb\u7a69\u5b9a\u7684\u4f3a\u670d\u5668\u74b0\u5883\uff0c\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u7d05\u8272\u767c\u4f48\u78ba\u4fdd\u7dda\u7a0b\u5b89\u5168\u7684\u51fd\u6578\u8abf\u7528\uff0c\u4e86\u89e3\u5982\u4f55\u5728 Redis \u4e2d\u5be6\u73fe\u9ad8\u6548\u7684\u7dda\u7a0b\u5b89\u5168\u64cd\u4f5c\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-159415","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159415","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=159415"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159415\/revisions"}],"predecessor-version":[{"id":159416,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159415\/revisions\/159416"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=159415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=159415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=159415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}