{"id":180058,"date":"2024-11-09T07:03:22","date_gmt":"2024-11-08T23:03:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180058\/"},"modified":"2024-11-09T07:03:23","modified_gmt":"2024-11-08T23:03:23","slug":"%e5%a6%82%e4%bd%95%e9%87%8d%e6%96%b0%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%87%8d%e6%96%b0%e9%80%a3%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180058\/","title":{"rendered":"\u5982\u4f55\u91cd\u65b0\u9023\u63a5\u6578\u64da\u5eab\uff1f (\u6578\u64da\u5eab\u91cd\u65b0\u9023\u63a5)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e9%87%8d%e6%96%b0%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%87%8d%e6%96%b0%e9%80%a3%e6%8e%a5-UnuffNhZYl\">\u5982\u4f55\u91cd\u65b0\u9023\u63a5\u6578\u64da\u5eab\uff1f (\u6578\u64da\u5eab\u91cd\u65b0\u9023\u63a5)<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u7528\u6027\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u7db2\u7ad9\u3001\u79fb\u52d5\u61c9\u7528\u9084\u662f\u4f01\u696d\u7cfb\u7d71\uff0c\u6578\u64da\u5eab\u7684\u9023\u63a5\u554f\u984c\u90fd\u53ef\u80fd\u5c0e\u81f4\u61c9\u7528\u7a0b\u5f0f\u7684\u6545\u969c\u6216\u6027\u80fd\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5730\u91cd\u65b0\u9023\u63a5\u6578\u64da\u5eab\u662f\u6bcf\u4f4d\u958b\u767c\u8005\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-UnuffNhZYl\">\u6578\u64da\u5eab\u9023\u63a5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u9023\u63a5\u662f\u6307\u61c9\u7528\u7a0b\u5f0f\u8207\u6578\u64da\u5eab\u4e4b\u9593\u7684\u901a\u4fe1\u901a\u9053\u3002\u7576\u61c9\u7528\u7a0b\u5f0f\u9700\u8981\u8a2a\u554f\u6578\u64da\u6642\uff0c\u5b83\u6703\u901a\u904e\u9019\u500b\u9023\u63a5\u5411\u6578\u64da\u5eab\u767c\u9001\u8acb\u6c42\u3002\u9023\u63a5\u7684\u5efa\u7acb\u901a\u5e38\u9700\u8981\u63d0\u4f9b\u6578\u64da\u5eab\u7684\u5730\u5740\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u7b49\u4fe1\u606f\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e9%87%8d%e6%96%b0%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-UnuffNhZYl\">\u70ba\u4ec0\u9ebc\u9700\u8981\u91cd\u65b0\u9023\u63a5\u6578\u64da\u5eab\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u9023\u63a5\u53ef\u80fd\u6703\u56e0\u591a\u7a2e\u539f\u56e0\u800c\u4e2d\u65b7\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u7db2\u7d61\u554f\u984c\uff1a\u7db2\u7d61\u4e0d\u7a69\u5b9a\u6216\u4e2d\u65b7\u53ef\u80fd\u5c0e\u81f4\u9023\u63a5\u4e1f\u5931\u3002<\/li>\n<li>\u6578\u64da\u5eab\u670d\u52d9\u5668\u91cd\u555f\uff1a\u6578\u64da\u5eab\u670d\u52d9\u5668\u7684\u7dad\u8b77\u6216\u91cd\u555f\u6703\u5c0e\u81f4\u73fe\u6709\u9023\u63a5\u5931\u6548\u3002<\/li>\n<li>\u8d85\u6642\uff1a\u5982\u679c\u9023\u63a5\u5728\u4e00\u5b9a\u6642\u9593\u5167\u672a\u88ab\u4f7f\u7528\uff0c\u53ef\u80fd\u6703\u88ab\u81ea\u52d5\u95dc\u9589\u3002<\/li>\n<li>\u8cc7\u6e90\u9650\u5236\uff1a\u6578\u64da\u5eab\u7684\u6700\u5927\u9023\u63a5\u6578\u9054\u5230\u4e0a\u9650\u6642\uff0c\u65b0\u7684\u9023\u63a5\u8acb\u6c42\u53ef\u80fd\u6703\u5931\u6557\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%87%8d%e6%96%b0%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab-UnuffNhZYl\">\u5982\u4f55\u91cd\u65b0\u9023\u63a5\u6578\u64da\u5eab<\/h2>\n<p>\u91cd\u65b0\u9023\u63a5\u6578\u64da\u5eab\u7684\u5177\u9ad4\u6b65\u9a5f\u53d6\u6c7a\u65bc\u6240\u4f7f\u7528\u7684\u6578\u64da\u5eab\u985e\u578b\u548c\u7de8\u7a0b\u8a9e\u8a00\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u6578\u64da\u5eab\u548c\u76f8\u61c9\u7684\u91cd\u65b0\u9023\u63a5\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-mysql-UnuffNhZYl\">1. MySQL<\/h3>\n<p>\u5728\u4f7f\u7528 MySQL \u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u901a\u904e\u6355\u7372\u7570\u5e38\u4f86\u5be6\u73fe\u91cd\u65b0\u9023\u63a5\u3002\u4ee5\u4e0b\u662f PHP \u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>\n$mysqli = new mysqli(\"localhost\", \"user\", \"password\", \"database\");\n\nif ($mysqli-&gt;connect_error) {\n    die(\"\u9023\u63a5\u5931\u6557: \" . $mysqli-&gt;connect_error);\n}\n\nfunction reconnect($mysqli) {\n    if (!$mysqli-&gt;ping()) {\n        $mysqli-&gt;close();\n        $mysqli = new mysqli(\"localhost\", \"user\", \"password\", \"database\");\n    }\n    return $mysqli;\n}\n\n\/\/ \u4f7f\u7528\u9023\u63a5\n$mysqli = reconnect($mysqli);\n<\/code><\/pre>\n<h3 id=\"2-postgresql-UnuffNhZYl\">2. PostgreSQL<\/h3>\n<p>\u5728 PostgreSQL \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b Python \u4ee3\u78bc\u4f86\u91cd\u65b0\u9023\u63a5\uff1a<\/p>\n<pre><code>\nimport psycopg2\nfrom psycopg2 import OperationalError\n\ndef create_connection():\n    connection = None\n    try:\n        connection = psycopg2.connect(\n            host=\"localhost\",\n            database=\"database\",\n            user=\"user\",\n            password=\"password\"\n        )\n    except OperationalError as e:\n        print(f\"\u9023\u63a5\u5931\u6557: {e}\")\n    return connection\n\ndef reconnect(connection):\n    try:\n        connection.close()\n    except Exception as e:\n        print(f\"\u95dc\u9589\u9023\u63a5\u5931\u6557: {e}\")\n    return create_connection()\n\n# \u4f7f\u7528\u9023\u63a5\nconnection = create_connection()\nif connection is None:\n    connection = reconnect(connection)\n<\/code><\/pre>\n<h3 id=\"3-mongodb-UnuffNhZYl\">3. MongoDB<\/h3>\n<p>\u5c0d\u65bc MongoDB\uff0c\u4f7f\u7528 Node.js \u9032\u884c\u91cd\u65b0\u9023\u63a5\u7684\u793a\u4f8b\u4ee3\u78bc\u5982\u4e0b\uff1a<\/p>\n<pre><code>\nconst { MongoClient } = require('mongodb');\n\nasync function connect() {\n    const client = new MongoClient('mongodb:\/\/localhost:27017');\n    try {\n        await client.connect();\n        console.log(\"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\");\n    } catch (error) {\n        console.error(\"\u9023\u63a5\u5931\u6557\uff0c\u6b63\u5728\u91cd\u65b0\u9023\u63a5...\", error);\n        await reconnect(client);\n    }\n}\n\nasync function reconnect(client) {\n    await client.close();\n    await connect();\n}\n\n\/\/ \u4f7f\u7528\u9023\u63a5\nconnect();\n<\/code><\/pre>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-UnuffNhZYl\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u5be6\u73fe\u6578\u64da\u5eab\u91cd\u65b0\u9023\u63a5\u6642\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u9023\u63a5\u6c60\uff1a\u9023\u63a5\u6c60\u53ef\u4ee5\u6709\u6548\u7ba1\u7406\u6578\u64da\u5eab\u9023\u63a5\uff0c\u6e1b\u5c11\u91cd\u65b0\u9023\u63a5\u7684\u983b\u7387\u3002<\/li>\n<li>\u8a2d\u7f6e\u91cd\u8a66\u6a5f\u5236\uff1a\u5728\u9023\u63a5\u5931\u6557\u6642\uff0c\u8a2d\u7f6e\u91cd\u8a66\u6b21\u6578\u548c\u9593\u9694\u6642\u9593\uff0c\u4ee5\u907f\u514d\u904e\u65bc\u983b\u7e41\u7684\u91cd\u8a66\u3002<\/li>\n<li>\u76e3\u63a7\u9023\u63a5\u72c0\u614b\uff1a\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\u9023\u63a5\u7684\u72c0\u614b\uff0c\u53ca\u6642\u8655\u7406\u7570\u5e38\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-UnuffNhZYl\">\u7e3d\u7d50<\/h2>\n<p>\u91cd\u65b0\u9023\u63a5\u6578\u64da\u5eab\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u78ba\u4fdd\u61c9\u7528\u7a0b\u5f0f\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\u6027\u3002\u7121\u8ad6\u662f\u4f7f\u7528 MySQL\u3001PostgreSQL \u9084\u662f MongoDB\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5730\u8655\u7406\u9023\u63a5\u554f\u984c\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u900f\u904e\u5be6\u65bd\u6700\u4f73\u5be6\u8e10\uff0c\u60a8\u53ef\u4ee5\u6e1b\u5c11\u56e0\u9023\u63a5\u554f\u984c\u800c\u5c0e\u81f4\u7684\u61c9\u7528\u7a0b\u5f0f\u6545\u969c\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\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5f0f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u5730\u91cd\u65b0\u9023\u63a5\u6578\u64da\u5eab\uff0c\u89e3\u6c7a\u9023\u63a5\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u6d41\u901a\u9806\u66a2\uff0c\u63d0\u5347\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-180058","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180058","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=180058"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180058\/revisions"}],"predecessor-version":[{"id":180059,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180058\/revisions\/180059"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}