MongoDB将值从Java插入数据库

import com.mongodb.MongoClient;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import org.bson.Document;

public class MongoDBExample {
    public static void main(String[] args) {
        // 连接到MongoDB数据库
        MongoClient mongoClient = new MongoClient("localhost", 27017);

        // 选择数据库
        MongoDatabase database = mongoClient.getDatabase("mydb");

        // 选择集合
        MongoCollection<Document> collection = database.getCollection("mycollection");

        // 创建要插入的文档
        Document document = new Document("name", "John")
                .append("age", 30)
                .append("city", "New York");

        // 将文档插入集合
        collection.insertOne(document);

        // 关闭数据库连接
        mongoClient.close();
    }
}