{"id":81312,"date":"2024-10-16T15:16:16","date_gmt":"2024-10-16T07:16:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/81312\/"},"modified":"2024-10-16T15:16:16","modified_gmt":"2024-10-16T07:16:16","slug":"node-js%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%ef%bc%9f-node-js%e9%85%8d%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/81312\/","title":{"rendered":"Node.js\u5982\u4f55\u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\uff1f (Node.js\u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5)"},"content":{"rendered":"<h1 id=\"node-js%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%ef%bc%9f-mPnLvCVuAy\">Node.js\u5982\u4f55\u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u958b\u767c\u4e2d\uff0cNode.js\u56e0\u5176\u9ad8\u6548\u7684\u975e\u963b\u585eI\/O\u6a21\u578b\u800c\u53d7\u5230\u5ee3\u6cdb\u4f7f\u7528\u3002\u7576\u958b\u767c\u61c9\u7528\u7a0b\u5e8f\u6642\uff0c\u6578\u64da\u5eab\u7684\u9023\u63a5\u914d\u7f6e\u662f\u81f3\u95dc\u91cd\u8981\u7684\u4e00\u6b65\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728Node.js\u4e2d\u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e9%81%b8%e6%93%87%e6%95%b8%e6%93%9a%e5%ba%ab-mPnLvCVuAy\">\u9078\u64c7\u6578\u64da\u5eab<\/h2>\n<p>\u5728\u958b\u59cb\u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u3002Node.js\u652f\u6301\u591a\u7a2e\u6578\u64da\u5eab\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff1a\u5982MySQL\u3001PostgreSQL<\/li>\n<li>\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff1a\u5982MongoDB\u3001Redis<\/li>\n<\/ul>\n<p>\u6839\u64da\u61c9\u7528\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u985e\u578b\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e5%ae%89%e8%a3%9d%e6%95%b8%e6%93%9a%e5%ba%ab%e9%a9%85%e5%8b%95-mPnLvCVuAy\">\u5b89\u88dd\u6578\u64da\u5eab\u9a45\u52d5<\/h2>\n<p>\u5728Node.js\u4e2d\uff0c\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u901a\u5e38\u9700\u8981\u5b89\u88dd\u76f8\u61c9\u7684\u6578\u64da\u5eab\u9a45\u52d5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u6578\u64da\u5eab\u7684\u9a45\u52d5\u5b89\u88dd\u793a\u4f8b\uff1a<\/p>\n<pre><code>npm install mysql<\/code><\/pre>\n<pre><code>npm install pg<\/code><\/pre>\n<pre><code>npm install mongoose<\/code><\/pre>\n<p>\u9019\u4e9b\u547d\u4ee4\u5c07\u5b89\u88ddMySQL\u3001PostgreSQL\u548cMongoDB\u7684\u9a45\u52d5\u3002<\/p>\n<h2 id=\"%e9%85%8d%e7%bd%ae%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-mPnLvCVuAy\">\u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n<h3 id=\"mysql%e7%a4%ba%e4%be%8b-mPnLvCVuAy\">MySQL\u793a\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u5982\u4f55\u5728Node.js\u4e2d\u914d\u7f6eMySQL\u6578\u64da\u5eab\u9023\u63a5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>const mysql = require('mysql');\n\nconst connection = mysql.createConnection({\n    host: 'localhost',\n    user: 'yourUsername',\n    password: 'yourPassword',\n    database: 'yourDatabase'\n});\n\nconnection.connect((err) =&gt; {\n    if (err) {\n        console.error('\u9023\u63a5\u5931\u6557: ' + err.stack);\n        return;\n    }\n    console.log('\u5df2\u9023\u63a5\u4f5c\u70ba ID ' + connection.threadId);\n});<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5f15\u5165\u4e86mysql\u6a21\u584a\uff0c\u7136\u5f8c\u4f7f\u7528createConnection\u65b9\u6cd5\u5275\u5efa\u4e86\u4e00\u500b\u9023\u63a5\u5c0d\u8c61\u3002\u63a5\u8457\uff0c\u6211\u5011\u4f7f\u7528connect\u65b9\u6cd5\u4f86\u5efa\u7acb\u9023\u63a5\uff0c\u4e26\u8655\u7406\u53ef\u80fd\u51fa\u73fe\u7684\u932f\u8aa4\u3002<\/p>\n<h3 id=\"mongodb%e7%a4%ba%e4%be%8b-mPnLvCVuAy\">MongoDB\u793a\u4f8b<\/h3>\n<p>\u5c0d\u65bcMongoDB\uff0c\u4f7f\u7528Mongoose\u4f86\u9032\u884c\u9023\u63a5\u914d\u7f6e\u7684\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code>const mongoose = require('mongoose');\n\nmongoose.connect('mongodb:\/\/localhost:27017\/yourDatabase', {\n    useNewUrlParser: true,\n    useUnifiedTopology: true\n}).then(() =&gt; {\n    console.log('MongoDB\u9023\u63a5\u6210\u529f');\n}).catch((err) =&gt; {\n    console.error('MongoDB\u9023\u63a5\u5931\u6557: ' + err);\n});<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528mongoose.connect\u65b9\u6cd5\u4f86\u9023\u63a5MongoDB\uff0c\u4e26\u4f7f\u7528then\u548ccatch\u4f86\u8655\u7406\u6210\u529f\u548c\u5931\u6557\u7684\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e6%b8%ac%e8%a9%a6%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-mPnLvCVuAy\">\u6e2c\u8a66\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n<p>\u4e00\u65e6\u914d\u7f6e\u5b8c\u6210\uff0c\u6e2c\u8a66\u6578\u64da\u5eab\u9023\u63a5\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u901a\u904e\u57f7\u884c\u7c21\u55ae\u7684\u67e5\u8a62\u4f86\u78ba\u8a8d\u9023\u63a5\u662f\u5426\u6b63\u5e38\u3002\u4f8b\u5982\uff0c\u5c0d\u65bcMySQL\uff0c\u53ef\u4ee5\u57f7\u884c\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>connection.query('SELECT * FROM yourTable', (error, results) =&gt; {\n    if (error) throw error;\n    console.log(results);\n});<\/code><\/pre>\n<p>\u5c0d\u65bcMongoDB\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n<pre><code>const YourModel = mongoose.model('YourModel', new mongoose.Schema({ name: String }));\n\nYourModel.find({}, (err, docs) =&gt; {\n    if (err) {\n        console.error(err);\n    } else {\n        console.log(docs);\n    }\n});<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mPnLvCVuAy\">\u7e3d\u7d50<\/h2>\n<p>\u5728Node.js\u4e2d\u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\uff0c\u7121\u8ad6\u662f\u4f7f\u7528MySQL\u9084\u662fMongoDB\uff0c\u90fd\u53ef\u4ee5\u901a\u904e\u5b89\u88dd\u76f8\u61c9\u7684\u9a45\u52d5\u4e26\u9032\u884c\u7c21\u55ae\u7684\u914d\u7f6e\u4f86\u5be6\u73fe\u3002\u78ba\u4fdd\u5728\u958b\u767c\u904e\u7a0b\u4e2d\u9032\u884c\u5145\u5206\u7684\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u9023\u63a5\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u9760\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\u90e8\u7f72\u60a8\u7684Node.js\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\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\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728Node.js\u4e2d\u914d\u7f6e\u6578\u64da\u5eab\u9023\u63a5\uff0c\u6b65\u9a5f\u7c21\u55ae\uff0c\u9069\u7528\u65bcMySQL\u3001MongoDB\u7b49\u591a\u7a2e\u6578\u64da\u5eab\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-81312","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81312","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=81312"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81312\/revisions"}],"predecessor-version":[{"id":81313,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/81312\/revisions\/81313"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=81312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=81312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=81312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}