Solr:通过solrj对索引库进行维护<三>

一 创建java程序,引入jar包

依赖的jar 

二 入门程序

2.1 新增/更新索引

public class SolrDemo {
    HttpSolrServer httpSolrServer = null;
    @Before
    public void init() {
        //连接索引库
        String baseUrl = "http://localhost/solr/article";
        httpSolrServer = new HttpSolrServer(baseUrl);
    }
    //保存或更新  id不存在即保存,id存在即更新
    @Test
    public void UpdateOrSave() throws Exception {
        //创建文档对象
        SolrInputDocument doc = new SolrInputDocument();
        doc.addField("id","1");
        doc.addField("title","我是程序员");
        doc.addField("content","我爱敲代码");
        //提交
        httpSolrServer.add(doc);
        httpSolrServer.commit();
    }
}

2.2 查询

1普通查询

 //查询  查询条件格式 "*:*" 即"指定的字段:指定检索的内容"
    @Test
    public void QueryDemo() throws Exception {
        SolrQuery solrQuery = new SolrQuery("title:程序");
        QueryResponse queryResponse = httpSolrServer.query(solrQuery);
        SolrDocumentList results = queryResponse.getResults();
        for (SolrDocument result : results) {
            System.out.println(result.get("id"));
            System.out.println(result.get("title"));
            System.out.println( result.get("content"));
            System.out.println(result.get("keywords"));
        }
    }

2 高亮查询 ,对查询的内容进行修饰

 //高亮查询
    @Test
    public void HighLightQueryDemo() throws Exception {
        //设置查询条件
        SolrQuery solrQuery = new SolrQuery("title:程序");
        //设置高亮字段
        solrQuery.addHighlightField("title");
        //开启高亮
        solrQuery.setHighlight(true);
        //设置开始标签
        solrQuery.setHighlightSimplePre("<font color='red'>");
        //设置结束标签
        solrQuery.setHighlightSimplePost("</font>");
        QueryResponse queryResponse = httpSolrServer.query(solrQuery);
        //普通结果
        SolrDocumentList results = queryResponse.getResults();
        //高亮结果
        Map<String, Map<String, List<String>>> highlight = queryResponse.getHighlighting();
        for (SolrDocument result : results) {
            String id = result.get("id").toString();
            System.out.println("id= " + id);
            System.out.println("普通title"+result.get("title"));
            System.out.println("高亮title"+highlight.get(id).get("title"));
            System.out.println( result.get("content"));
            System.out.println(result.get("keywords"));
            System.out.println(highlight);
        }
    }

打印结果:

id= 1
普通title我是程序员
高亮title[我是<font color='red'>程序</font>员]
我爱敲代码
[我是程序员, 我爱敲代码]
{1={title=[我是<font color='red'>程序</font>员]}}

2.3删除

执行前可多插入几条数据

1.根据id删除

 //删除 根据id删除
    @Test
    public void deleteById() throws IOException, SolrServerException {
        httpSolrServer.deleteById("3");
        httpSolrServer.commit();
    }

2.根据条件删除

 @Test
    public void deleteByQuery() throws IOException, SolrServerException {
        //先查询后删除
        httpSolrServer.deleteByQuery("title:程序");
        httpSolrServer.commit();
    }

3.删除所有

   //删除所有
    @Test
    public void deleteAll() throws IOException, SolrServerException {
        httpSolrServer.deleteByQuery("*:*");
        httpSolrServer.commit();
    }

 ok