SolrJ简单使用

最近在电脑上简单的安装了一下Solr并简单的使用了SolrJ进行查询，下面是我的程序。

import java.io.IOException;
import java.net.URISyntaxException;

import org.apache.solr.client.solrj.SolrQuery;
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.SolrDocument;
import org.apache.solr.common.SolrDocumentList;

public class SolrImpl {
    
    private SolrServer server;
    
    public SolrImpl(String indexHost) throws URISyntaxException {
        this.server = new HttpSolrServer(indexHost);
    }
    
    /**
     * 查询
     * @param q
     * @param pageNow
     * @return
     * @throws SolrServerException
     */
    
    public QueryResponse queryDocuments(String q, int pageNow,int countPerPage)
            throws SolrServerException {
         
        SolrQuery query = new SolrQuery();        
        query.setRequestHandler("/select");
        //q=escapeQueryChars(q);
        query.set("q",q);  //要检索字段由df制定，默认为copyfield text{title,html}
        System.err.println(q);
        // 分页
        query.setRows(countPerPage);// 每次取多少条
        query.setStart(pageNow);// 从第几条开始查询
        
        //所有配置已经移入配置文件
        // 高亮现实
        //query.set("fl","*");
        query.setHighlight(true); // 开启高亮组件
        query.addHighlightField("TEXT");// 高亮字段
        //query.addHighlightField("title");
        //query.setHighlightSimplePre("");// 标记
        //query.setHighlightSimplePost("");
        //query.set("hl.usePhraseHighlighter", true);
        //query.set("hl.highlightMultiTerm", true);
        query.setHighlightSnippets(100);// 结果分片数,默认为 1
        query.setHighlightFragsize(1);// 每个分片的最大长度
        QueryResponse response = server.query(query);
        return response;
    }

    /**
     * 将查询中的特殊字符进行转义处理
     * 
     * @param s
     * @return s
     */
    public static String escapeQueryChars(String s) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < s.length(); i++) {
            char c = s.charAt(i);
            // These characters are part of the query syntax and must be escaped
            if (c == '\\' || c == '+' || c == '-' || c == '!' || c == '('
                    || c == ')' || c == ':' || c == '^' || c == '[' || c == ']'
                    || c == '{' || c == '}' || c == '~'
                    || c == '*' || c == '?' || c == '|' || c == '&' || c == ';'
                    || c == '/')
            {
                sb.append('\\');
            }
            sb.append(c);
        }
        String q = sb.toString();
        q = q.replaceAll("“","\"");   //中文引号替换
        q = q.replaceAll("”","\"");   //中文引号替换
        q = q.toUpperCase();  //逻辑符号转换成大写
        return q;
    }
    /**
     * 按id查询获得快照
     * @param id
     * @return
     * @throws SolrServerException
     */
    public String getSnap(String id) throws SolrServerException {
        SolrQuery query = new SolrQuery();
        id=escapeQueryChars(id);
        query.set("q", "id:" + id);
        QueryResponse response = server.query(query);
        String html = (String)response.getResults().get(0).getFieldValue("html");
        return html;
    }
    
    //删除所用索引
    public void deleteAllIndex() throws SolrServerException, IOException{
          server.deleteByQuery("*:*");
          server.commit();        
    }
    /**
     * 建立全文索引
     */
    public  void fullIndex()
    {
        SolrQuery query = new SolrQuery();
        // 指定RequestHandler，默认使用/select
        query.setRequestHandler("/dataimport");        
        query.setParam("command", "full-import")
             .setParam("clean", "true")
             .setParam("commit", "true")
             .setParam("optimize", "true");
             //.setParam("entity", "spider_data")
        try 
        {
            this.server.query(query);
        } catch (SolrServerException e) 
        {
            e.printStackTrace();
            System.out.println("建立全文索引失败！");
        }
    }
    /**
     * 建立增量索引
     */
    public void deltaIndex() {
        SolrQuery query = new SolrQuery();
        // 指定RequestHandler，默认使用/select
        query.setRequestHandler("/dataimport");        
        query.setParam("command", "delta-import")
             .setParam("clean", "false")
             .setParam("commit", "true")
             .setParam("optimize", "true");
             //.setParam("entity", "spider_data")
        try 
        {
            this.server.query(query);
        } catch (SolrServerException e) 
        {
            e.printStackTrace();
            System.out.println("增量索引建立失败！");
        }
    }
    
    public static void main(String[] args) throws SolrServerException, URISyntaxException {
        SolrImpl solrImpl = new SolrImpl("http://localhost:8080/solr/");

         String q= "((\"gao\")OR(\"solr\"))NOT(\"yang\")";
         //q=escapeQueryChars(q);
         QueryResponse qr = solrImpl.queryDocuments(q,0,10);         
         //Map<String, Map<String,List<String>>> highlight = qr.getHighlighting();
         SolrDocumentList documentList=qr.getResults();
         System.err.println(documentList.getNumFound());
         for (SolrDocument solrDocument : documentList)
         {          
             System.out.println(solrDocument.getFieldValue("id"));
             System.out.println(solrDocument.getFieldValue("name"));
             System.out.println(solrDocument.getFieldValue("password"));
            //System.out.println((String)solrDocument.getFieldValue("title"));
            //String id = (String) solrDocument.getFieldValue("id");
            //System.err.println(highlight.get(id).get("html").get(0));
            /*
             System.out.println((String)solrDocument.getFieldValue("content"));
             System.out.println(solrDocument.getFieldValue("tstamp"));
             System.out.println(new SimpleDateFormat("yyyy-MM-dd").format(solrDocument.getFieldValue("tstamp")));
             System.out.println((String)solrDocument.getFieldValue("html"));         
            */
         }
    }

}

以后准备做一个界面出来