Java & MongoDB - 插入文档



要在集合中插入一个文档,你可以使用 collection.insertOne()collection.insertMany() 方法在集合中插入文档。

// insert a single document
collection.insertOne(document);

// insert multiple documents
collection.insertMany(documents);

示例

以下是在集合中插入文档的代码段 −

import java.util.ArrayList;
import java.util.List;

import org.bson.Document;

import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;

public class Tester {
   public static void main(String[] args) {
      // Creating a Mongo client 
      MongoClient mongoClient = MongoClients.create("mongodb://127.0.0.1:27017");
      MongoDatabase database = mongoClient.getDatabase("myDb");

      // Get the collection
      MongoCollection<Document> collection = database.getCollection("sampleCollection");

      Document document = new Document("First_Name", "Mahesh")
         .append("Last_Name", "Parashar")
         .append("Date_Of_Birth", "1990-08-21")
         .append("e_mail", "[email protected]")
         .append("phone", "9034343345");

      collection.insertOne(document);
      List<Document> documents = new ArrayList<>();

      documents.add(new Document("First_Name", "Radhika")
         .append("Last_Name", "Sharma")
         .append("Date_Of_Birth", "1995-09-26")
         .append("e_mail", "[email protected]")
         .append("phone", "9000012345"));

      documents.add(new Document("First_Name", "Rachel")
         .append("Last_Name", "Christopher")
         .append("Date_Of_Birth", "1990-02-16")
         .append("e_mail", "[email protected]")
         .append("phone", "9000054321"));

      documents.add(new Document("First_Name", "Fathima")
         .append("Last_Name", "Sheik")
         .append("Date_Of_Birth", "1990-02-16")
         .append("e_mail", "[email protected]")
         .append("phone", "9000054321"));

      collection.insertMany(documents);

      System.out.println("Documents inserted.");
   }
}

现在,我们按照如下所示编译并运行上述程序。

$javac Tester.java 
$java Tester

输出

在执行时,上述程序会输出以下结果。

Documents inserted.
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