solrJ錯誤HttpSolrServer和SolrServer

Question

我加入Java庫的.jar文件，並嘗試連接到Solr的，代碼如下：

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); 

    } 
} 

但是，當我嘗試運行該程序，我遇到錯誤：

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 

我該如何解決呢？

Answer 1

在服務器URL添加集合/核心名稱，索引文檔的位置。

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

示例Java代碼供您參考。

*提供索引到solr的所有文件。將*更改爲要搜索的關鍵字字符串。

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)); 
     } 
    } 
}