Solr analyzer and business fields, solr Analyzer

Solr analyzer and business fields, solr Analyzer

This article uses Centos6.5 64-bit solr4.10.3 IK-Analyzer Chinese Analyzer

1. Configure the Chinese Analyzer

The default solr analyzer is a Chinese analyzer and needs to be manually configured. Configure a FieldType and specify the Chinese analyzer in FieldType.

1. Use the IK-Analyzer Chinese Analyzer to upload the Analyzer file to the server/opt/tools/IK Analyzer 2012FF_hf1

2. Add the jar package (IKAnalyzer2012FF_u1.jar) of the analyzer to the solr project.

[Root @ localhost IK Analyzer 2012FF_hf1] # cp IKAnalyzer2012FF_u1.jar/usr/local/solr4/tomcat 7/webapps/solr/WEB-INF/lib/

3. Copy the extended dictionary and deprecated word dictionary and configuration file required by IKAnalyzer to the classpath of the solr project.

(1) Create the classes directory in usr/local/solr4/tomcat7/webapps/solr/WEB-INF/directory [root @ localhost WEB-INF] # mkdir classes

(2) copy the file [root @ localhost IK Analyzer 2012FF_hf1] # cp IKAnalyzer. cfg. xml ext_stopword.dic mydict. dic/usr/local/solr4/tomcat7/webapps/solr/WEB-INF/classes

Ext_stopword.dic: Extended Word Dictionary

Mydict. dic: deprecated Word Dictionary

Note: The character set of extended dictionary and deprecated dictionary must be UTF-8. Cannot be edited using windows notepad.

4. Configure fieldType. It must be configured in solrhome/collection1/conf/schema. xml. Tip: Use vi and vim to jump to the beginning of the document gg. Jump to the end of the document: G

Add fieldType at the end of the file

<fieldType name="text_ik" class="solr.TextField">    <analyzer class="org.wltea.analyzer.lucene.IKAnalyzer"/></fieldType>

Name = "text_ik": an identifier can be written at will.

Class = "solr. TextField": Analyzer

2. Configure business fields

The fields in Solr must be defined first and then used. This configuration should be associated with our actual business.

Criteria for determining business fields:

1. Do you need to search for this field during search. For example: product name, selling point, product description

2. Do you need this field for future businesses. For example, the product id.

Fields required for this project:

1. Product id

2. Product title

3. selling point sell_point

4. price

5. product image

6. product category name category_name

7. Item Description item_des

Add the business field in Solr to solrhome/collection1/conf/schema. xml:

Id -- Item id

Create solr fields for other fields.

<Field name = "item_title" type = "text_ik" indexed = "true" stored = "true"/> <field name = "item_sell_point" type = "text_ik" indexed = "true ""stored =" true "/> <field name =" item_price "type =" long "indexed =" true "stored =" true "/> <field name =" item_image "type = "string" indexed = "false" stored = "true"/> <field name = "item_category_name" type = "string" indexed = "true" stored = "true"/> <field name = "item_desc" type = "text_ik" I Ndexed = "true" stored = "false"/> <! -- Create a replication domain and copy the search keywords from other domains to one domain. This is solr's optimization for search. -->
<Field name = "item_keywords" type = "text_ik" indexed = "true" stored = "false" multiValued = "true"/> <copyField source = "item_title" dest = "item_keywords "/> <copyField source =" item_sell_point "dest =" item_keywords "/> <copyField source =" item_category_name "dest =" item_keywords "/> <copyField source =" item_desc "dest = "item_keywords"/>

The fields that write data to the index database must be the same as the configuration.

 

Restart tomcat