{"id":188002,"date":"2024-11-11T18:58:21","date_gmt":"2024-11-11T10:58:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188002\/"},"modified":"2024-11-11T18:58:22","modified_gmt":"2024-11-11T10:58:22","slug":"%e6%95%b8%e6%93%9a%e7%94%a8redis%e5%a6%99%e6%8b%9b%e5%bf%ab%e9%80%9f%e6%b8%85%e7%90%8610%e5%a4%a9%e5%89%8d%e5%a4%b1%e6%95%88%e6%95%b8%e6%93%9a%ef%bc%88redis%e6%b8%85%e9%99%a410%e5%a4%a9%e5%89%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188002\/","title":{"rendered":"\u6578\u64da\u7528Redis\u5999\u62db\u5feb\u901f\u6e05\u740610\u5929\u524d\u5931\u6548\u6578\u64da\uff08Redis\u6e05\u966410\u5929\u524d\uff09"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e7%94%a8redis%e5%a6%99%e6%8b%9b%e5%bf%ab%e9%80%9f%e6%b8%85%e7%90%8610%e5%a4%a9%e5%89%8d%e5%a4%b1%e6%95%88%e6%95%b8%e6%93%9a%ef%bc%88redis%e6%b8%85%e9%99%a410%e5%a4%a9%e5%89%8d-fUvxuAmTcY\">\u6578\u64da\u7528Redis\u5999\u62db\u5feb\u901f\u6e05\u740610\u5929\u524d\u5931\u6548\u6578\u64da\uff08Redis\u6e05\u966410\u5929\u524d\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7684\u7ba1\u7406\u548c\u6e05\u7406\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u4e2d\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5feb\u901f\u8b80\u53d6\u548c\u5beb\u5165\u7684\u61c9\u7528\u4e2d\u3002\u7136\u800c\uff0c\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u904e\u671f\u7684\u6578\u64da\u53ef\u80fd\u6703\u4f54\u7528\u5bf6\u8cb4\u7684\u5167\u5b58\u8cc7\u6e90\uff0c\u5f71\u97ff\u7cfb\u7d71\u7684\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u6e05\u7406\u5931\u6548\u6578\u64da\u662f\u7dad\u6301Redis\u6027\u80fd\u7684\u95dc\u9375\u4e4b\u4e00\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Redis\u5feb\u901f\u6e05\u740610\u5929\u524d\u7684\u5931\u6548\u6578\u64da\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e6%95%b8%e6%93%9a%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-fUvxuAmTcY\">Redis\u7684\u6578\u64da\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis\u63d0\u4f9b\u4e86\u5167\u5efa\u7684\u6578\u64da\u904e\u671f\u6a5f\u5236\uff0c\u5141\u8a31\u7528\u6236\u70ba\u6bcf\u500b\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u7576\u6578\u64da\u8d85\u904e\u8a2d\u5b9a\u7684\u904e\u671f\u6642\u9593\u5f8c\uff0cRedis\u6703\u81ea\u52d5\u5c07\u5176\u522a\u9664\u3002\u9019\u4e00\u6a5f\u5236\u4f7f\u5f97\u7ba1\u7406\u6578\u64da\u8b8a\u5f97\u66f4\u52a0\u7c21\u55ae\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5b9a\u671f\u6e05\u7406\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%ae%e6%95%b8%e6%93%9a%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-fUvxuAmTcY\">\u5982\u4f55\u8a2d\u7f6e\u6578\u64da\u904e\u671f\u6642\u9593<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>EXPIRE<\/code>\u547d\u4ee4\u4f86\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SET mykey \"Hello\"\nEXPIRE mykey 864000  # \u8a2d\u7f6emykey\u572810\u5929\u5f8c\u904e\u671f\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c<code>mykey<\/code>\u5c07\u5728864000\u79d2\uff08\u537310\u5929\uff09\u5f8c\u81ea\u52d5\u904e\u671f\u4e26\u88ab\u522a\u9664\u3002<\/p>\n<h2 id=\"%e6%b8%85%e7%90%8610%e5%a4%a9%e5%89%8d%e7%9a%84%e6%95%b8%e6%93%9a-fUvxuAmTcY\">\u6e05\u740610\u5929\u524d\u7684\u6578\u64da<\/h2>\n<p>\u5982\u679c\u60a8\u9700\u8981\u624b\u52d5\u6e05\u740610\u5929\u524d\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528Redis\u7684<code>SCAN<\/code>\u547d\u4ee4\u4f86\u904d\u6b77\u6240\u6709\u9375\uff0c\u4e26\u6aa2\u67e5\u5b83\u5011\u7684\u904e\u671f\u6642\u9593\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u8173\u672c\uff0c\u5c55\u793a\u5982\u4f55\u6e05\u740610\u5929\u524d\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>import redis\nimport time\n\n# \u9023\u63a5\u5230Redis\nr = redis.StrictRedis(host='localhost', port=6379, db=0)\n\n# \u7576\u524d\u6642\u9593\ncurrent_time = time.time()\n\n# \u904d\u6b77\u6240\u6709\u9375\ncursor = 0\nwhile True:\n    cursor, keys = r.scan(cursor)\n    for key in keys:\n        # \u7372\u53d6\u9375\u7684\u904e\u671f\u6642\u9593\n        ttl = r.ttl(key)\n        if ttl != -1:  # \u5982\u679c\u9375\u6709\u904e\u671f\u6642\u9593\n            # \u8a08\u7b97\u904e\u671f\u6642\u9593\n            expire_time = current_time + ttl\n            if expire_time &lt; current_time - 864000:  # 10\u5929\u524d\n                r.delete(key)  # \u522a\u9664\u9375\n    if cursor == 0:\n        break\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u904d\u6b77Redis\u4e2d\u7684\u6240\u6709\u9375\uff0c\u6aa2\u67e5\u6bcf\u500b\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u4e26\u522a\u9664\u90a3\u4e9b\u572810\u5929\u524d\u5df2\u7d93\u904e\u671f\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8redis%e7%9a%84%e5%84%aa%e5%8b%a2-fUvxuAmTcY\">\u4f7f\u7528Redis\u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528Redis\u9032\u884c\u6578\u64da\u7ba1\u7406\u6709\u591a\u7a2e\u512a\u52e2\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis\u7684\u5167\u5b58\u5b58\u5132\u7279\u6027\u4f7f\u5176\u5728\u8b80\u53d6\u548c\u5beb\u5165\u64cd\u4f5c\u4e0a\u975e\u5e38\u5feb\u901f\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u7b49\uff0c\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002<\/li>\n<li><strong>\u7c21\u55ae\u6613\u7528\uff1a<\/strong>\u63d0\u4f9b\u4e86\u7c21\u55ae\u7684\u547d\u4ee4\u884c\u754c\u9762\u548c\u591a\u7a2e\u8a9e\u8a00\u7684\u5ba2\u6236\u7aef\u5eab\uff0c\u65b9\u4fbf\u958b\u767c\u8005\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-fUvxuAmTcY\">\u7d50\u8ad6<\/h2>\n<p>\u5b9a\u671f\u6e05\u7406Redis\u4e2d\u7684\u5931\u6548\u6578\u64da\u662f\u4fdd\u6301\u7cfb\u7d71\u6027\u80fd\u7684\u95dc\u9375\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u548c\u4f7f\u7528\u8173\u672c\u624b\u52d5\u6e05\u7406\u904e\u671f\u6578\u64da\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u5167\u5b58\u8cc7\u6e90\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7684\u9ad8\u6548\u904b\u884c\u3002\u7121\u8ad6\u662f\u4f7f\u7528Redis\u7684\u5167\u5efa\u904e\u671f\u6a5f\u5236\u9084\u662f\u81ea\u5b9a\u7fa9\u6e05\u7406\u8173\u672c\uff0c\u9019\u4e9b\u65b9\u6cd5\u90fd\u80fd\u5e6b\u52a9\u60a8\u4fdd\u6301\u6578\u64da\u5eab\u7684\u6574\u6f54\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\u4f86\u904b\u884c\u60a8\u7684Redis\u5be6\u4f8b\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5feb\u901f\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Redis\u6e05\u740610\u5929\u524d\u7684\u5931\u6548\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u4fdd\u6301\u7cfb\u7d71\u6027\u80fd\u6700\u4f73\u5316\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-188002","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188002","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=188002"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188002\/revisions"}],"predecessor-version":[{"id":188003,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188002\/revisions\/188003"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=188002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=188002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=188002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}