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java操作mongodb基礎(chǔ)

時(shí)間:2025-10-23 05:16:10 java語(yǔ)言

java操作mongodb基礎(chǔ)

  復(fù)制代碼 代碼如下:

  package com.infomorrow.webroot;

  import java.util.List;

  import com.mongodb.BasicDBObject;

  import com.mongodb.DB;

  import com.mongodb.DBCollection;

  import com.mongodb.DBCursor;

  import com.mongodb.DBObject;

  import com.mongodb.MongoClient;

  public class test_mongodb {

  public static void main(String args[]) throws Exception {

  MongoClient mongoClient = new MongoClient( "127.0.0.1" , 27017 );/pic/p>

  DB get_db_credit = mongoClient.getDB("credit_2");/pic/p>

  DBCollection collection = get_db_credit.getCollection("report");/pic/p>

  BasicDBObject filter_dbobject = new BasicDBObject();

  /pic/p>

  /pic/p>

  filter_dbobject.put("user_id", "10065716153075");

  /pic/p>

  DBCursor cursor = collection.find(filter_dbobject).limit(10).sort(new BasicDBObject("create_time",-1));

  /pic/p>

  Listlist = cursor.toArray();

  System.out.println(list.size());/pic/p>

  System.err.println(cursor.count());/pic/p>

  /pic/p>

  while(cursor.hasNext()) {

  System.out.println(cursor.next());

  }

  }

  }

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