Eclipes를 통해 MongoDB & Java 연결하기

Question

간단한 연결을 만들고 java (eclipse 4.7.1a)를 사용하여 로컬 MongoDB 인스턴스에 문서를 삽입하려고합니다. MongoDB는 &이며 "Compass"를 통해 작업을 수행 할 수 있습니다.

  package com; 
      import com.mongodb.MongoClient; 
      import com.mongodb.WriteConcern; 
      import com.mongodb.DB; 
      import com.mongodb.DBCollection; 
      import com.mongodb.BasicDBObject; 
      import com.mongodb.DBObject; 
      import com.mongodb.DBCursor; 
      import java.net.UnknownHostException; 
      import java.util.Date; 
      import java.util.List; 
      import java.util.Arrays; 

      public class connectToDB { 
       public static void main(String args[]) { 

      try{ 

      // To connect to mongodb server 
      MongoClient mongoClient = new MongoClient("localhost" , 27017          
     ); 

      // Now connect to your databases 
      DB db = mongoClient.getDB("test"); 
      System.out.println("Connect to database successfully"); 

      // if collection doesn't exists, MongoDB will create it for you  
      DBCollection coll = db.getCollection("testCollection"); 
      System.out.println("Collection coll selected successfully"); 

      // insert 
      List<Integer> books = Arrays.asList(27464, 747854); 
      DBObject documents = new BasicDBObject("_id", "jo") 
             .append("name", "Jo Bloggs") 
             .append("address", new BasicDBObject("street", "123 Fake St") 
                     .append("city", "Faketon") 
                     .append("state", "MA") 
                     .append("zip", 12345)) 
             .append("books", books); 
      coll.insert(documents); 
      System.out.println("Document added to Collection coll successfully"); 

      // update 
      BasicDBObject query = new BasicDBObject(); 
      query.put("name", "Xo"); 

      BasicDBObject newDocument = new BasicDBObject(); 
      newDocument.put("name", "Jo Bloggs-updated"); 

      BasicDBObject updateObj = new BasicDBObject(); 
      updateObj.put("$set", newDocument); 

      coll.update(query, updateObj); 
      System.out.println("Document updated to Collection coll successfully"); 

      // find - search 
      BasicDBObject searchQuery1 = new BasicDBObject(); 
      searchQuery1.put("name", "mkyong"); 
      DBCursor cursor = coll.find(searchQuery1); 
      System.out.println("Selection from Collection coll done successfully"); 
      while (cursor.hasNext()) { 
       System.out.println(cursor.next()); 
      } 

      // delete 
      BasicDBObject searchQuery2 = new BasicDBObject(); 
      searchQuery2.put("name", "Xo"); 
      coll.remove(searchQuery2); 
      System.out.println("Document deleted from Collection mycol2 successfully"); 

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

}

하지만 실행될 때, 이클립스 오류를 다음과 같이 끝납니다.

Nov 01, 2017 2:19:31 AM com.mongodb.diagnostics.logging.JULLogger log 
INFO: Cluster created with settings {hosts=[localhost:27017], mode=SINGLE,     
requiredClusterType=UNKNOWN, serverSelectionTimeout='30000 ms', 
maxWaitQueueSize=500} 
Exception in thread "main" java.lang.NoSuchMethodError: 
org.bson.BsonDocument.clone()Lorg/bson/BsonDocument; 
at com.mongodb.connection.ClientMetadataHelper. 
createClientMetadataDocument(ClientMetadataHelper.java:159) 
at com.mongodb.connection.ClientMetadataHelper. 
createClientMetadataDocument(ClientMetadataHelper.java:149) 
at com.mongodb.connection.InternalStreamConnectionFactory.<init> 
(InternalStreamConnectionFactory.java:37) 
at com.mongodb.connection.DefaultClusterableServerFactory. 
create(DefaultClusterableServerFactory.java:58) 
at com.mongodb.connection.BaseCluster.createServer(BaseCluster.java:359) 
at com.mongodb.connection.SingleServerCluster.<init> 
(SingleServerCluster.java:52) 
at com.mongodb.connection.DefaultClusterFactory. 
createCluster(DefaultClusterFactory.java:147) 
at com.mongodb.Mongo.createCluster(Mongo.java:726) 
at com.mongodb.Mongo.createCluster(Mongo.java:720) 
at com.mongodb.Mongo.<init>(Mongo.java:290) 
at com.mongodb.Mongo.<init>(Mongo.java:285) 
at com.mongodb.Mongo.<init>(Mongo.java:281) 
at com.mongodb.MongoClient.<init>(MongoClient.java:186) 
at com.mongodb.MongoClient.<init>(MongoClient.java:163) 
at com.mongodb.MongoClient.<init>(MongoClient.java:153) 
at com.connectToDB.main(connectToDB.java:25) 

MongoDB를 버전 : v3.4.9 jar 파일에 따라 사용. bson 3.0.4.jar & mongo-java-driver-3.5.0.jar

왜이 오류가 발생했는지에 관해 나를 도와 줄 수 있습니까? 당신이 당신의 MongoDB의 코드는 간단한 인사 세계 프로그램을 실행 사용하기 전에 그 다음 주에 MongoDB의 코드를 넣고 다시 실행 작동하는 경우

Answer 1

귀하의 코드는 완벽하게

 public class connectToDB { 
      public static void main(String args[]) { 

        System.out.println("Hello world"); 

       } 
      } 

을 위해 노력하고 있습니다. 만약 작동하지 않는다면 "Eclipse IDE 사용법"을 배워야한다. 당신이 데이터베이스에 뛰어 들기 전에.

다음은 코드 결과입니다.

여기에 데이터가 데이터베이스에서 어떻게 보이는지 보여줍니다.