mongodb笔记----java连接mongodb使用基本语句

package com.test.mongo;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.bson.Document;
import org.bson.conversions.Bson;

import com.mongodb.BasicDBObject;
import com.mongodb.MongoClient;
import com.mongodb.QueryOperators;
import com.mongodb.client.FindIterable;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoCursor;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.model.Filters;
import com.mongodb.client.result.DeleteResult;


public class MongoDBJDBC {
    
    public static void main(String[] args) {
        try{
            
            @SuppressWarnings("resource")
            MongoClient client = new MongoClient("localhost",27017);

            MongoDatabase database = client.getDatabase("testdb");
//            System.out.println("连接成功！"+database.getName());
//            database.createCollection("test1");
//            System.out.println("创建成功："+database.getCollection("test1").toString());
            MongoCollection<Document> collection = database.getCollection("test1");
//             Document document = new Document("title", "MongoDB").  
//                     append("description", "database").  
//                     append("likes", 100).  
//                     append("by", "Fly"); 
//            long start = System.currentTimeMillis();
//             //插入
//             List<Document> documents = new ArrayList<Document>();
//    
             SimpleDateFormat sdf=new SimpleDateFormat("yyy-MM-dd hh:mm"); 
//             for(int t = 2 ; t < 24 ; t++)
//             for(int i = 0 ; i < 1000 ; i ++ ){
//                 String strDate="2019-06-"+t+" "+(i/60+1)+":"+(i%60);
//                 documents.add(new Document("name", "name"+i).  
//                         append("title", "title").  
//                         append("num",i).  
//                         append("dates",sdf.parse(strDate) ));
//                 if(i%100000==0){
//                     collection.insertMany(documents);
//                     documents.clear();
//                 }
//             }
//             collection.insertMany(documents);  //insertOne(document); 
//             long end = System.currentTimeMillis();
//             System.out.println("time:"+(end-start));
                
             //删
//             Bson bson = Filters.eq("description", "database");
//             DeleteResult result = collection.deleteMany(bson);
//             System.out.println("删除数量："+result.getDeletedCount());
             
             //查
             FindIterable<Document> findIterable = collection.find(new BasicDBObject("dates", new BasicDBObject("$gte", sdf.parse("2019-06-1 00:24"))
                                                                                                              .append("$lte",sdf.parse("2019-06-26 16:24")))
                                                                                             .append("num", new BasicDBObject(QueryOperators.IN, new int[]{1,3,5,7,9})))
                                                                 .limit(50);
//            FindIterable<Document> findIterable = collection.find(new BasicDBObject("num", new BasicDBObject(QueryOperators.NIN, new int[]{1,3,5,7,9}))).limit(10);
             MongoCursor<Document> mongoCursor = findIterable.iterator();
             while( mongoCursor.hasNext() ){
                 Document item = mongoCursor.next();
                 System.out.println(item.getString("name")+"|"+item.getString("title")+"|"+item.getInteger("num")+"|"+sdf.format(item.getDate("dates")));
             }
              System.out.println("查询结束");
             client.close();
        }catch (Exception e) {
            // TODO: handle exception
            System.err.println(e.getMessage());
        }
    }

}

使用的包

<dependency>
    <groupId>org.mongodb</groupId>
    <artifactId>mongo-java-driver</artifactId>
    <version>3.11.0-beta4</version>
</dependency>