Question

当我使用order子句执行查询时，系统会抛出这样的异常

无法对多值字段进行排序：DATE＆＃34;。

所有字段类型都会出现这种情况，例如string，long等。

我使用Solr Schema浏览器分析了字段，并且所有字段都有 multivalue = true; 用于标记＆＃34;属性＆＃34;和＆＃34;架构＆＃34;。（图片atached ）

我以这种方式插入文档，使用java代码：

        String solrPath = Configuration.getString("solr.path");
        HttpSolrClient solr = new HttpSolrClient(solrPath);
        SolrInputDocument document = new SolrInputDocument();
        document.addField("CATEGORY", knowError.getCategory().getDescription());
        document.addField("RAITING", knowError.getRaiting()); //long value
        document.addField("DATE", knowError.getRevisionDate());                      
        UpdateRequest req = new UpdateRequest();
        req.setAction(UpdateRequest.ACTION.COMMIT, false, false);
        req.add(document);
        UpdateResponse response = req.process(solr);
        solr.commit();

我以这种方式进行查询：

        String solrPath = Configuration.getString("solr.path");
        HttpSolrClient client = new HttpSolrClient(solrPath);
        client.setUseMultiPartPost(true);
        client.setConnectionTimeout(5000);
        SolrQuery solrQuery = new SolrQuery();
        solrQuery.setQuery(key);
        solrQuery.setFields("KEDB_ID", "CAUSE", "SOLUTION", "WORKAROUND", "CATEGORY","DESCRIPTION","AUTHOR","TAGS","RAITING","DATE");
        solrQuery.setStart(0);
        solrQuery.setRows(200);
        if(filterByRaiting){   
            solrQuery.addSort("RAITING", SolrQuery.ORDER.desc);
        }else (filterByDate)
        {
            solrQuery.addSort("DATE", SolrQuery.ORDER.desc);
        }     
        //solrQuery.addSort(SolrQuery.SortClause.asc("CAUSE"));
        QueryResponse response = client.query(solrQuery);
        ret= response.getResults();

如何在插入中创建 multivalue = false 字段？

Answer 1

也许您之前可以在架构文件中定义一些dynamic fields，例如

<dynamicField name="*_i" type="slong" indexed="true" stored="true" multiValued="false" />

以这种方式插入文件，用java代码：

document.addField("RAITING_i", knowError.getRaiting()); //long value

设置字段多值= false

1 个答案: