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  1. java操作mongodb基礎

    時間:2025-10-23 05:16:10 java語言

    java操作mongodb基礎

      復制代碼 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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