solrJ 오류가 HttpSolrServer 및 SolrServer

Question

내가 자바 라이브러리에있는 jar 파일을 추가하고, SOLR에 연결을 시도해야

코드는 다음과 같습니다 :

import java.net.MalformedURLException; 
import org.apache.solr.client.solrj.SolrServer; 
import org.apache.solr.client.solrj.SolrServerException; 
import org.apache.solr.client.solrj.impl.HttpSolrServer; 
import org.apache.solr.client.solrj.response.QueryResponse; 
import org.apache.solr.common.params.ModifiableSolrParams; 

public class SolrQuery { 
    public static void main(String[] args) throws MalformedURLException, SolrServerException { 
    SolrServer server = new HttpSolrServer("http://localhost:8080/solr"); 
     ModifiableSolrParams params = new ModifiableSolrParams(); 
     params.set("q", "1"); 

      QueryResponse response = server.query(params); 

      System.out.println("response = " + response); 

    } 
} 

하지만 난 프로그램을 실행하려고 할 때, 난 오류 :

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
    SolrServer cannot be resolved to a type 
    HttpSolrServer cannot be resolved to a type 
    The type org.apache.solr.common.params.SolrParams cannot be resolved. It is indirectly referenced from required .class files 

어떻게 해결할 수 있습니까?

Answer 1

서버 URL에서 문서를 색인 생성 한 컬렉션/코어 이름을 추가하십시오.

SolrServer server = new HttpSolrServer ("http://localhost:8080/solr/collection");

예제 자바 코드 참조 용.

* solr에 색인 된 모든 문서를 제공합니다. 검색하려는 키워드 문자열에 *을 변경하십시오.

import org.apache.solr.client.solrj.SolrQuery; 
import org.apache.solr.client.solrj.SolrServerException; 
import org.apache.solr.client.solrj.impl.HttpSolrServer; 
import org.apache.solr.client.solrj.response.QueryResponse; 
import org.apache.solr.common.SolrDocumentList; 

public class SearchSolr { 

    public static void main(String[] args) throws SolrServerException { 
     HttpSolrServer solr = new HttpSolrServer("http://localhost:8983/solr/collection1"); 
     SolrQuery query = new SolrQuery(); 
     query.setQuery("*"); 
     QueryResponse response = solr.query(query); 
     SolrDocumentList results = response.getResults(); 
     for (int i = 0; i < results.size(); ++i) { 
      System.out.println(results.get(i)); 
     } 
    } 
}