{"id":166621,"date":"2024-11-05T17:53:20","date_gmt":"2024-11-05T09:53:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/166621\/"},"modified":"2024-11-05T17:53:21","modified_gmt":"2024-11-05T09:53:21","slug":"%e5%bf%ab%e9%80%9f%e5%ad%b8%e7%bf%92node-js%e5%a6%82%e4%bd%95%e8%aa%bf%e7%94%a8%e6%95%b8%e6%93%9a%e5%ba%ab-node-js%e8%aa%bf%e7%94%a8%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/166621\/","title":{"rendered":"\u5feb\u901f\u5b78\u7fd2Node.js\u5982\u4f55\u8abf\u7528\u6578\u64da\u5eab (node.js\u8abf\u7528\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%bf%ab%e9%80%9f%e5%ad%b8%e7%bf%92node-js%e5%a6%82%e4%bd%95%e8%aa%bf%e7%94%a8%e6%95%b8%e6%93%9a%e5%ba%ab-lyWcJNRKRp\">\u5feb\u901f\u5b78\u7fd2Node.js\u5982\u4f55\u8abf\u7528\u6578\u64da\u5eab<\/h1>\n<p>Node.js\u662f\u4e00\u500b\u57fa\u65bcChrome V8\u5f15\u64ce\u7684JavaScript\u904b\u884c\u74b0\u5883\uff0c\u56e0\u5176\u9ad8\u6548\u80fd\u548c\u975e\u963b\u585eI\/O\u6a21\u578b\u800c\u53d7\u5230\u5ee3\u6cdb\u6b61\u8fce\u3002\u5728\u958b\u767cWeb\u61c9\u7528\u7a0b\u5e8f\u6642\uff0c\u6578\u64da\u5eab\u7684\u8abf\u7528\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728Node.js\u4e2d\u8abf\u7528\u6578\u64da\u5eab\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-lyWcJNRKRp\">\u9078\u64c7\u6578\u64da\u5eab<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u9078\u64c7\u4e00\u500b\u5408\u9069\u7684\u6578\u64da\u5eab\u3002Node.js\u652f\u6301\u591a\u7a2e\u6578\u64da\u5eab\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff1a<\/strong>\u5982MySQL\u3001PostgreSQL\u7b49\u3002<\/li>\n<li><strong>\u975e\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff1a<\/strong>\u5982MongoDB\u3001Cassandra\u7b49\u3002<\/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\u672c\u6587\u5c07\u4ee5MongoDB\u70ba\u4f8b\uff0c\u56e0\u70ba\u5b83\u5728Node.js\u793e\u5340\u4e2d\u975e\u5e38\u6d41\u884c\u3002<\/p>\n<h2 id=\"%e5%ae%89%e8%a3%9dmongodb%e5%92%8c%e7%9b%b8%e9%97%9c%e5%ba%ab-lyWcJNRKRp\">\u5b89\u88ddMongoDB\u548c\u76f8\u95dc\u5eab<\/h2>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u5b89\u88ddMongoDB\u6578\u64da\u5eab\u3002\u53ef\u4ee5\u53c3\u8003\u5b98\u65b9\u6587\u6a94\u9032\u884c\u5b89\u88dd\u3002\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u60a8\u9084\u9700\u8981\u5b89\u88ddNode.js\u7684MongoDB\u9a45\u52d5\u7a0b\u5e8f\u3002\u53ef\u4ee5\u4f7f\u7528npm\u4f86\u5b89\u88dd\uff1a<\/p>\n<pre><code>npm install mongodb<\/code><\/pre>\n<h2 id=\"%e9%80%a3%e6%8e%a5%e5%88%b0mongodb-lyWcJNRKRp\">\u9023\u63a5\u5230MongoDB<\/h2>\n<p>\u5728Node.js\u4e2d\u9023\u63a5\u5230MongoDB\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u9023\u63a5\u5230MongoDB\u7684\u57fa\u672c\u4ee3\u78bc\uff1a<\/p>\n<pre><code>const { MongoClient } = require('mongodb');\n\n\/\/ MongoDB\u7684\u9023\u63a5\u5b57\u7b26\u4e32\nconst url = 'mongodb:\/\/localhost:27017';\nconst dbName = 'mydatabase';\n\nasync function main() {\n    const client = new MongoClient(url);\n\n    try {\n        \/\/ \u9023\u63a5\u5230MongoDB\n        await client.connect();\n        console.log('\u6210\u529f\u9023\u63a5\u5230MongoDB');\n\n        const db = client.db(dbName);\n        \/\/ \u5728\u9019\u88e1\u53ef\u4ee5\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\n    } catch (err) {\n        console.error(err);\n    } finally {\n        await client.close();\n    }\n}\n\nmain().catch(console.error);<\/code><\/pre>\n<h2 id=\"%e5%9f%b7%e8%a1%8c%e5%9f%ba%e6%9c%ac%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c-lyWcJNRKRp\">\u57f7\u884c\u57fa\u672c\u7684\u6578\u64da\u5eab\u64cd\u4f5c<\/h2>\n<p>\u4e00\u65e6\u6210\u529f\u9023\u63a5\u5230MongoDB\uff0c\u60a8\u53ef\u4ee5\u57f7\u884c\u5404\u7a2e\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u5982\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u64cd\u4f5c\u7684\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-lyWcJNRKRp\">\u63d2\u5165\u6578\u64da<\/h3>\n<pre><code>const collection = db.collection('users');\n\n\/\/ \u63d2\u5165\u4e00\u689d\u6578\u64da\nconst user = { name: 'Alice', age: 25 };\nconst result = await collection.insertOne(user);\nconsole.log(`\u63d2\u5165\u4e86 ${result.insertedCount} \u689d\u6578\u64da`);<\/code><\/pre>\n<h3 id=\"%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-lyWcJNRKRp\">\u67e5\u8a62\u6578\u64da<\/h3>\n<pre><code>const users = await collection.find({}).toArray();\nconsole.log(users);<\/code><\/pre>\n<h3 id=\"%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-lyWcJNRKRp\">\u66f4\u65b0\u6578\u64da<\/h3>\n<pre><code>const updateResult = await collection.updateOne(\n    { name: 'Alice' },\n    { $set: { age: 26 } }\n);\nconsole.log(`\u66f4\u65b0\u4e86 ${updateResult.modifiedCount} \u689d\u6578\u64da`);<\/code><\/pre>\n<h3 id=\"%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-lyWcJNRKRp\">\u522a\u9664\u6578\u64da<\/h3>\n<pre><code>const deleteResult = await collection.deleteOne({ name: 'Alice' });\nconsole.log(`\u522a\u9664\u4e86 ${deleteResult.deletedCount} \u689d\u6578\u64da`);<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-lyWcJNRKRp\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5982\u4f55\u5728Node.js\u4e2d\u8abf\u7528\u6578\u64da\u5eab\uff0c\u7279\u5225\u662fMongoDB\u7684\u57fa\u672c\u64cd\u4f5c\u3002\u901a\u904e\u7c21\u55ae\u7684\u4ee3\u78bc\u793a\u4f8b\uff0c\u60a8\u53ef\u4ee5\u5feb\u901f\u4e0a\u624b\u4e26\u958b\u59cb\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u7121\u8ad6\u60a8\u662f\u958b\u767c\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u7cfb\u7d71\uff0c\u638c\u63e1Node.js\u8207\u6578\u64da\u5eab\u7684\u4ea4\u4e92\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u6280\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u4f86\u904b\u884c\u60a8\u7684Node.js\u61c9\u7528\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> 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