{"id":97340,"date":"2024-10-20T17:05:18","date_gmt":"2024-10-20T09:05:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97340\/"},"modified":"2024-10-20T17:05:18","modified_gmt":"2024-10-20T09:05:18","slug":"redis-%e5%93%88%e5%b8%8c%e8%a1%a8-vs-java-haspmap-%e5%93%aa%e5%ae%b6%e5%bc%b7%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97340\/","title":{"rendered":"Redis \u54c8\u5e0c\u8868 VS Java HaspMap , \u54ea\u5bb6\u5f37\uff1f"},"content":{"rendered":"<h1 id=\"redis-%e5%93%88%e5%b8%8c%e8%a1%a8-vs-java-hashmap%ef%bc%8c%e5%93%aa%e5%ae%b6%e5%bc%b7%ef%bc%9f-malHlMlsCl\">Redis \u54c8\u5e0c\u8868 VS Java HashMap\uff0c\u54ea\u5bb6\u5f37\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u9ad4\u958b\u767c\u4e2d\uff0c\u6578\u64da\u7d50\u69cb\u7684\u9078\u64c7\u5c0d\u65bc\u61c9\u7528\u7a0b\u5f0f\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\u6027\u81f3\u95dc\u91cd\u8981\u3002Redis \u54c8\u5e0c\u8868\u548c Java HashMap \u662f\u5169\u7a2e\u5e38\u898b\u7684\u6578\u64da\u7d50\u69cb\uff0c\u5404\u81ea\u64c1\u6709\u7368\u7279\u7684\u7279\u6027\u548c\u512a\u52e2\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u5169\u8005\u7684\u5dee\u7570\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u9078\u64c7\u6700\u9069\u5408\u5176\u9700\u6c42\u7684\u6578\u64da\u7d50\u69cb\u3002<\/p>\n<h2 id=\"redis-%e5%93%88%e5%b8%8c%e8%a1%a8%e6%a6%82%e8%bf%b0-malHlMlsCl\">Redis \u54c8\u5e0c\u8868\u6982\u8ff0<\/h2>\n<p>Redis \u662f\u4e00\u500b\u958b\u6e90\u7684\u9ad8\u6027\u80fd\u9375\u503c\u6578\u64da\u5eab\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u54c8\u5e0c\u8868\u3002Redis \u54c8\u5e0c\u8868\u662f\u4e00\u7a2e\u7528\u65bc\u5b58\u5132\u9375\u503c\u5c0d\u7684\u6578\u64da\u7d50\u69cb\uff0c\u7279\u5225\u9069\u5408\u7528\u65bc\u5b58\u5132\u5c0d\u8c61\u7684\u5c6c\u6027\u3002<\/p>\n<ul>\n<li><strong>\u6027\u80fd\uff1a<\/strong>Redis \u54c8\u5e0c\u8868\u7684\u67e5\u8a62\u548c\u5beb\u5165\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u56e0\u70ba\u5b83\u662f\u57fa\u65bc\u5167\u5b58\u7684\u6578\u64da\u5eab\uff0c\u4e26\u4e14\u4f7f\u7528\u4e86\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\u3002<\/li>\n<li><strong>\u6301\u4e45\u6027\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u6578\u64da\u6301\u4e45\u5316\u7684\u9078\u9805\uff0c\u53ef\u4ee5\u5c07\u5167\u5b58\u4e2d\u7684\u6578\u64da\u4fdd\u5b58\u5230\u78c1\u789f\u4e2d\uff0c\u9019\u6a23\u5373\u4f7f\u670d\u52d9\u5668\u91cd\u555f\uff0c\u6578\u64da\u4e5f\u4e0d\u6703\u4e1f\u5931\u3002<\/li>\n<li><strong>\u5206\u4f48\u5f0f\uff1a<\/strong>Redis \u652f\u6301\u5206\u4f48\u5f0f\u67b6\u69cb\uff0c\u53ef\u4ee5\u8f15\u9b06\u5730\u64f4\u5c55\u5230\u591a\u500b\u7bc0\u9ede\uff0c\u9069\u5408\u5927\u898f\u6a21\u61c9\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"java-hashmap-%e6%a6%82%e8%bf%b0-malHlMlsCl\">Java HashMap \u6982\u8ff0<\/h2>\n<p>Java HashMap \u662f Java \u96c6\u5408\u6846\u67b6\u4e2d\u7684\u4e00\u90e8\u5206\uff0c\u4e3b\u8981\u7528\u65bc\u5b58\u5132\u9375\u503c\u5c0d\u3002\u5b83\u662f\u4e00\u7a2e\u57fa\u65bc\u54c8\u5e0c\u8868\u7684\u6578\u64da\u7d50\u69cb\uff0c\u63d0\u4f9b\u4e86\u5feb\u901f\u7684\u67e5\u8a62\u548c\u63d2\u5165\u64cd\u4f5c\u3002<\/p>\n<ul>\n<li><strong>\u6027\u80fd\uff1a<\/strong>HashMap \u7684\u67e5\u8a62\u548c\u63d2\u5165\u64cd\u4f5c\u7684\u5e73\u5747\u6642\u9593\u8907\u96dc\u5ea6\u70ba O(1)\uff0c\u4f46\u5728\u6700\u58de\u60c5\u6cc1\u4e0b\u53ef\u80fd\u6703\u9000\u5316\u5230 O(n)\u3002<\/li>\n<li><strong>\u7dda\u7a0b\u5b89\u5168\uff1a<\/strong>HashMap \u672c\u8eab\u4e0d\u662f\u7dda\u7a0b\u5b89\u5168\u7684\uff0c\u4f46\u53ef\u4ee5\u901a\u904e\u4f7f\u7528 Collections.synchronizedMap() \u65b9\u6cd5\u4f86\u5be6\u73fe\u7dda\u7a0b\u5b89\u5168\u3002<\/li>\n<li><strong>\u5167\u5b58\u4f7f\u7528\uff1a<\/strong>HashMap \u7684\u5167\u5b58\u4f7f\u7528\u6548\u7387\u76f8\u5c0d\u8f03\u9ad8\uff0c\u4f46\u4e0d\u652f\u6301\u6301\u4e45\u5316\uff0c\u6578\u64da\u5728\u61c9\u7528\u7a0b\u5e8f\u95dc\u9589\u5f8c\u6703\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%80%a7%e8%83%bd%e6%af%94%e8%bc%83-malHlMlsCl\">\u6027\u80fd\u6bd4\u8f03<\/h2>\n<p>\u5728\u6027\u80fd\u65b9\u9762\uff0cRedis \u54c8\u5e0c\u8868\u901a\u5e38\u6bd4 Java HashMap \u66f4\u5177\u512a\u52e2\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002Redis \u7684\u5167\u5b58\u7ba1\u7406\u548c\u6578\u64da\u7d50\u69cb\u8a2d\u8a08\u4f7f\u5176\u80fd\u5920\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\u4fdd\u6301\u7a69\u5b9a\u7684\u6027\u80fd\u3002<\/p>\n<pre><code>\/\/ Redis \u54c8\u5e0c\u8868\u793a\u4f8b\nHSET user:1000 name \"Alice\"\nHSET user:1000 age 30\n\n\/\/ Java HashMap \u793a\u4f8b\nHashMap&lt;String, String&gt; user = new HashMap&lt;&gt;();\nuser.put(\"name\", \"Alice\");\nuser.put(\"age\", \"30\");\n<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-malHlMlsCl\">\u4f7f\u7528\u5834\u666f<\/h2>\n<p>\u9078\u64c7\u4f7f\u7528 Redis \u54c8\u5e0c\u8868\u9084\u662f Java HashMap \u53d6\u6c7a\u65bc\u5177\u9ad4\u7684\u61c9\u7528\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>Redis \u54c8\u5e0c\u8868\uff1a<\/strong>\u9069\u5408\u9700\u8981\u9ad8\u6027\u80fd\u3001\u53ef\u64f4\u5c55\u6027\u548c\u6301\u4e45\u6027\u7684\u61c9\u7528\uff0c\u5982\u5373\u6642\u804a\u5929\u61c9\u7528\u3001\u904a\u6232\u5f8c\u7aef\u7b49\u3002<\/li>\n<li><strong>Java HashMap\uff1a<\/strong>\u9069\u5408\u5c0f\u578b\u61c9\u7528\u6216\u5167\u90e8\u6578\u64da\u8655\u7406\uff0c\u7279\u5225\u662f\u5728\u55ae\u4e00\u61c9\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528\u6642\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-malHlMlsCl\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u7684\u4f86\u8aaa\uff0cRedis \u54c8\u5e0c\u8868\u548c Java HashMap \u5404\u6709\u5176\u512a\u52e2\u548c\u9069\u7528\u5834\u666f\u3002Redis \u66f4\u9069\u5408\u9700\u8981\u9ad8\u6027\u80fd\u548c\u6301\u4e45\u6027\u7684\u61c9\u7528\uff0c\u800c Java HashMap \u5247\u5728\u7c21\u55ae\u7684\u5167\u90e8\u6578\u64da\u8655\u7406\u4e2d\u8868\u73fe\u826f\u597d\u3002\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u7d50\u69cb\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u61c9\u7528\u7684\u6027\u80fd\u548c\u53ef\u64f4\u5c55\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\u4f86\u904b\u884c\u60a8\u7684\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis \u54c8\u5e0c\u8868\u4e0e Java HashMap \u7684\u5bf9\u6bd4\uff0c\u63a2\u8ba8\u5404\u81ea\u4f18\u52bf\u4e0e\u9002\u7528\u573a\u666f\uff0c\u5e2e\u52a9\u4f60\u9009\u62e9\u6700\u9002\u5408\u7684\u5b58\u50a8\u65b9\u6848\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-97340","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97340","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=97340"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97340\/revisions"}],"predecessor-version":[{"id":97341,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97340\/revisions\/97341"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}