通过Solrj查询Solr：基础知识

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我正在尝试通过Eclipse中的solrj查询solr。我已经尝试了最新的 solrj wiki 示例：

I am trying to query solr via solrj in Eclipse. I have tried the latest solrj wiki example:

import org.apache.solr.client.solrj.SolrServer; import org.apache.solr.client.solrj.SolrServerException; import org.apache.solr.client.solrj.impl.CommonsHttpSolrServer; import org.apache.solr.client.solrj.response.QueryResponse; import org.apache.solrmon.params.ModifiableSolrParams; import java.MalformedURLException; public class SolrQuery2 { public static void main(String[] args) throws MalformedURLException, SolrServerException { SolrServer solr = new CommonsHttpSolrServer("localhost:8080/solr"); // localhost:8080/solr/select/?q=outside ModifiableSolrParams params = new ModifiableSolrParams(); params.set("qt", "/select"); params.set("q", "outside"); QueryResponse response = solr.query(params); System.out.println("response = " + response); } }

然而，无论如何我都无法克服这个错误我这样做：

However, I cant get past this error no matter what I do:

Exception in thread "main" java.lang.NoSuchMethodError: org.slf4j.spi.LocationAwareLogger.log(Lorg/slf4j/Marker;Ljava/lang/String;ILjava/lang/String;[Ljava/lang/Object;Ljava/lang/Throwable;)V

接下来，我尝试了食谱示例：

Next, I tried the cookbook example:

import java.util.Iterator; import org.apache.solr.client.solrj.SolrQuery; //Error: The import org.apache.solr.client.solrj.SolrQuery conflicts with a type defined in the same file import org.apache.solr.client.solrj.impl.CommonsHttpSolrServer; import org.apache.solr.client.solrj.impl.XMLResponseParser; import org.apache.solr.client.solrj.response.QueryResponse; import org.apache.solrmon.SolrDocument; import org.apache.solrmon.SolrDocumentList; public class SolrQuery { public static void main(String[] args) throws Exception { CommonsHttpSolrServer server = new CommonsHttpSolrServer("localhost:8080/solr"); server.setParser(new XMLResponseParser()); SolrQuery query = new SolrQuery(); query.setQuery("document"); //Error: The method setQuery(String) is undefined for the type SolrQuery query.setStart(0); //Error: The method setStart(int) is undefined for the type SolrQuery query.setRows(10); //Error: The method setRows(int) is undefined for the type SolrQuery QueryResponse response = server.query(query); //Error: The method query(SolrParams) in the type SolrServer is not applicable for the arguments (SolrQuery) SolrDocumentList documents = response.getResults(); Iterator<SolrDocument> itr = documents.iterator(); System.out.println("DOCUMENTS"); while(itr.hasNext()){ SolrDocument doc = itr.next(); System.out.println(doc.getFieldValue("id")+":"+doc.getFieldValue("content")); } } }

但是，因为我甚至无法导入SolrQuery库，所以该示例可能是当前api的日期。

However, that example might be dated for the current api as I cant even import the SolrQuery library.

有没有人有快速的样板示例？

Does anyone have a quick boilerplate example that works?

提前谢谢。

PS。我正在使用tomcat7和solr 3.5运行windows7。我在这一点上所做的只是一个基本的查询，并将结果返回到某种列表，数组，等等。当我在firefox中查询： http：// localhost：8080 / solr / select /？q = outside 时，结果会很好。

PS. I am running windows7 with tomcat7 and solr 3.5. All I am trying to do at this point is a basic query and get the results back in some kind of list, array, whatever. When I query: localhost:8080/solr/select/?q=outside in firefox, the results come back just fine.

推荐答案

以下是我如何使用eclipse在我的Windows7盒子上运行Solrj（Solr 3.6）：

Here is how I got Solrj (Solr 3.6) working on my Windows7 box with eclipse:

import java.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.solrmon.params.ModifiableSolrParams; public class SolrQuery { public static void main(String[] args) throws MalformedURLException, SolrServerException { SolrServer server = new HttpSolrServer("localhost:8080/solr"); ModifiableSolrParams params = new ModifiableSolrParams(); params.set("q", "1"); QueryResponse response = server.query(params); System.out.println("response = " + response); } }

我必须下载额外的罐子（在3.6的Solr之外为此工作：httpcomponents-client-4.2-beta1

I had to download additional jars (outside Solr of 3.6) for this to work: httpcomponents-client-4.2-beta1

总共，我需要4个罐来实现这个功能：

In total, I needed 4 jars to get this working :