Solr搜索未给出单个词项的确切结果 [英] Solr search not giving exact result for single word term

问题描述

我是solr搜索查询的初学者，在这里我试图获取给定术语的准确结果.对于包含多个单词的术语，我得到了确切的结果.但是对于只有一个单词的术语，我没有确切的搜索结果.在投反对票或结束这个问题之前，请考虑一下情况.我要精确搜索单个单词.

I am a very beginner in solr search queries where I am trying to get exact results for my given term. I am getting exact result for terms which have more than one word. But for terms which have only one word I am not getting exact search result. Before down voting or closing this question consider the scenario. I am asking exact search for single word.

例如

1. 如果我搜索要添加的船"，我得到结果要发送的地址

植物:我得到诸如植物编号，植物类型，植物描述之类的结果，然后得到植物我希望我的确切单词Plant首先出现，然后我希望其他相关搜索出现

Plant: I get results like Plant Number, Plant Type, Plant description,and then Plant I want my Exact word Plant to come first then I want other related searches to come

我尝试过的方法

/query?q=(name:"PLant")&stopwords=true           //giving output I mentiond above

/query?q=(name:"^PLant$")&stopwords=true        //not giving any output

/query?q="PLant"&stopwords=true                //giving fuzzy output

任何帮助将不胜感激.

推荐答案

您需要使用 string 作为字段 name 的 fieldtype

将字符串应用为 fieldtype 并重新索引数据.

Apply the String as fieldtype and reindex the data.

<field name="name" type="string" indexed="true" stored="true" required="true" multiValued="false" />

String 将单词/句子存储为精确的字符串，而不对其进行任何标记化.在存储精确匹配的情况下(例如，刻面，排序)有用.

String stores the word/sentence as an exact string without performing any tokenization on it. Its useful in cases for storing exact matches, e.g, for faceting, sorting.

与 string 类型相反的是 text . Text 对数据进行标记化，执行诸如小写字母等处理.在我们希望匹配句子的一部分时很有用.

Opposite of string type is text. Text does the tokenization of data, performs processing such as lower-casing etc. It is helpful in case when we want to match part of a sentence.

如果要实现小写搜索，请为您的字段使用以下字段类型.

If you want achieve the lowercase search then use the below fieldtype for you field.

<fieldType name="forExactMatch" class="solr.TextField" sortMissingLast="true" omitNorms="true">
      <analyzer>
        <tokenizer class="solr.KeywordTokenizerFactory"/>
        <filter class="solr.LowerCaseFilterFactory" />
      </analyzer>
    </fieldType>

然后您的场定义将如下所示

Then your field defination will look like below

<field name="name" type="forExactMatch" indexed="true" stored="true"/>

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