如何使用MongoDB实现数据的全文搜索功能（mongot

// 连接到MongoDB数据库

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const MongoClient = require(<a style=color:#f60; text-decoration:underline; href="https://www.php.cn/zt/16002.html" target="_blank">mongodb</a>).MongoClient;

const uri = "mongodb://localhost:27017";

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const client = new MongoClient(uri, { useNewUrlParser: true, useUnifiedTopology: true });

// 在指定集合中创建文本索引 本文来自zvvq

client.connect(err => { 内容来自zvvq

const collection = client.db("mydb").collection("mycollection"); zvvq

collection.createIndex({ content: "text" }, function(err, result) { zvvq.cn

console.log("文本索引创建成功"); 内容来自zvvq

client.close(); zvvq.cn

});

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}); 内容来自zvvq，别采集哟

// 连接到MongoDB数据库

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const MongoClient = require(mongodb).MongoClient; copyright zvvq

const uri = "mongodb://localhost:27017"; zvvq好，好zvvq

const client = new MongoClient(uri, { useNewUrlParser: true, useUnifiedTopology: true });

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// 进行全文搜索 zvvq.cn

client.connect(err => { zvvq.cn

const collection = client.db("mydb").collection("mycollection"); zvvq.cn

collection.find({ $text: { $search: "关键词" } }).toArray(function(err, result) { zvvq.cn

console.log(result);

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client.close();

}); copyright zvvq

});

// 指定搜索参数 copyright zvvq

collection.find({ $text: { $search: "关键词", $language: "chinese", $caseSensitive: true } }).toArray(function(err, result) {

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console.log(result);

client.close(); 本文来自zvvq

});