mongodb java入门

mongodb java入门：

maven工程：

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>test</groupId>
  <artifactId>test</artifactId>
  <packaging>war</packaging>

  <version>1.0-SNAPSHOT</version>
  <name>test Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>commons-beanutils</groupId>
      <artifactId>commons-beanutils</artifactId>
      <version>1.9.2</version>
    </dependency>

    <dependency>
      <groupId>ma.glasnost.orika</groupId>
      <artifactId>orika-core</artifactId>
      <version>1.4.5</version>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.4.6</version>
    </dependency>

    <dependency>
      <groupId>org.mongodb</groupId>
      <artifactId>mongo-java-driver</artifactId>
      <version>2.13.3</version>
    </dependency>


  </dependencies>
  <build>
    <finalName>test</finalName>
  </build>
</project>

测试代码：

package com.test.utils;

import com.mongodb.*;

/**
 * Created by Administrator on 2016/5/19.
 */
public class MongoDBJDBC {



    public static void main( String args[] ){
        try{

            Long begin = System.currentTimeMillis();
            // 连接到 mongodb 服务
            MongoClient mongoClient = new MongoClient( "localhost" , 27017 );
            DB db = mongoClient.getDB("admin");
            // 连接到数据库
            System.out.println("Connect to database successfully");
            DBCollection dbCollection = db.getCollection("order");


            for (int i=2;i<10000;i++) {
                BasicDBObject ob =  new BasicDBObject();
                ob.put("a",i);
                ob.put("_id",i+"");
                dbCollection.insert(ob);
            }


            Long end = System.currentTimeMillis();
            System.out.println("ms:"+(end-begin)/1000);
            DBObject dbObject = dbCollection.findOne();
            System.out.println(dbObject.get("a"));

        }catch(Exception e){
            System.err.println( e.getClass().getName() + ": " + e.getMessage() );
        }
    }


}

官方文档也是for循环插入的，于是想找批量插入的api，结果没有。因为mongodb没有批量插入的概念，

以此记录下。继续学习mongodb.

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