2. 根据上面已经设计出的student集合,用MongoDB的JAVA客户端编程 a) 添加数据:English:45 Math:89Computer:100

package com.mongo;

import java.util.ArrayList;

import java.util.List;

import org.bson.Document;

import com.mongodb.MongoClient;

import com.mongodb.client.MongoCollection;

import com.mongodb.client.MongoDatabase;

public class MongoTest {

   public static void main(String[] args) {

       MongoClient mongoClient = new MongoClient("localhost", 27017);

       MongoDatabase mongoDatabase = mongoClient.getDatabase("student");

       MongoCollection<Document> collection = mongoDatabase

               .getCollection("student");

       Document document = new Document("name", "scofield").append(

               "score",

               new Document("English", 45).append("Math", 89).append(

                       "Computer", 100));

       List<Document> documents = new ArrayList<Document>();

       documents.add(document);

       collection.insertMany(documents);

       System.out.println("文档插入成功");

   }

}