199 lines
4.8 KiB
Plaintext
199 lines
4.8 KiB
Plaintext
IK Analysis for ElasticSearch
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==================================
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The IK Analysis plugin integrates Lucene IK analyzer into elasticsearch, support customized dictionary.
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Version
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-------------
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master | 0.90.0 -> master
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1.1.4 | 0.90.0
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1.1.3 | 0.20.2
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1.1.2 | 0.19.x
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1.0.0 | 0.16.2 -> 0.19.0
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Install
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-------------
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you can download this plugin from RTF project(https://github.com/medcl/elasticsearch-rtf)
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https://github.com/medcl/elasticsearch-rtf/tree/master/elasticsearch/plugins/analysis-ik
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https://github.com/medcl/elasticsearch-rtf/tree/master/elasticsearch/config/ik
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<del>also remember to download the dict files,unzip these dict file into your elasticsearch's config folder,such as: your-es-root/config/ik</del>
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you need a service restart after that!
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Dict Configuration (es-root/config/ik/IKAnalyzer.cfg.xml)
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-------------
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https://github.com/medcl/elasticsearch-analysis-ik/blob/master/config/ik/IKAnalyzer.cfg.xml
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<pre>
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
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<properties>
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<comment>IK Analyzer 扩展配置</comment>
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<!--用户可以在这里配置自己的扩展字典 -->
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<entry key="ext_dict">custom/mydict.dic;custom/sougou.dict</entry>
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<!--用户可以在这里配置自己的扩展停止词字典-->
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<entry key="ext_stopwords">custom/ext_stopword.dic</entry>
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</properties>
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</pre>
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Analysis Configuration (elasticsearch.yml)
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-------------
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<Pre>
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index:
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analysis:
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analyzer:
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ik:
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alias: [ik_analyzer]
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type: org.elasticsearch.index.analysis.IkAnalyzerProvider
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ik_max_word:
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type: ik
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use_smart: false
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ik_smart:
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type: ik
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use_smart: true
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</pre>
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Or
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<pre>
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index.analysis.analyzer.ik.type : "ik"
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</pre>
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you can set your prefer segment mode,default `use_smart` is false.
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Mapping Configuration
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-------------
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Here is a quick example:
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1.create a index
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<pre>
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curl -XPUT http://localhost:9200/index
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</pre>
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2.create a mapping
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<pre>
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curl -XPOST http://localhost:9200/index/fulltext/_mapping -d'
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{
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"fulltext": {
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"_all": {
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"indexAnalyzer": "ik",
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"searchAnalyzer": "ik",
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"term_vector": "no",
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"store": "false"
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},
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"properties": {
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"content": {
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"type": "string",
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"store": "no",
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"term_vector": "with_positions_offsets",
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"indexAnalyzer": "ik",
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"searchAnalyzer": "ik",
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"include_in_all": "true",
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"boost": 8
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}
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}
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}
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}'
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</pre>
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3.index some docs
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<pre>
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curl -XPOST http://localhost:9200/index/fulltext/1 -d'
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{content:"美国留给伊拉克的是个烂摊子吗"}
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'
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curl -XPOST http://localhost:9200/index/fulltext/2 -d'
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{content:"公安部：各地校车将享最高路权"}
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'
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curl -XPOST http://localhost:9200/index/fulltext/3 -d'
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{content:"中韩渔警冲突调查：韩警平均每天扣1艘中国渔船"}
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'
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curl -XPOST http://localhost:9200/index/fulltext/4 -d'
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{content:"中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"}
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'
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</pre>
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4.query with highlighting
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<pre>
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curl -XPOST http://localhost:9200/index/fulltext/_search -d'
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{
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"query" : { "term" : { "content" : "中国" }},
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"highlight" : {
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"pre_tags" : ["<tag1>", "<tag2>"],
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"post_tags" : ["</tag1>", "</tag2>"],
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"fields" : {
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"content" : {}
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}
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}
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}
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'
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</pre>
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here is the query result
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<pre>
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{
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"took": 14,
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"timed_out": false,
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"_shards": {
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"total": 5,
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"successful": 5,
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"failed": 0
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},
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"hits": {
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"total": 2,
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"max_score": 2,
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"hits": [
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{
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"_index": "index",
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"_type": "fulltext",
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"_id": "4",
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"_score": 2,
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"_source": {
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"content": "中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"
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},
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"highlight": {
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"content": [
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"<tag1>中国</tag1>驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首 "
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]
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}
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},
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{
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"_index": "index",
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"_type": "fulltext",
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"_id": "3",
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"_score": 2,
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"_source": {
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"content": "中韩渔警冲突调查：韩警平均每天扣1艘中国渔船"
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},
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"highlight": {
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"content": [
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"均每天扣1艘<tag1>中国</tag1>渔船 "
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]
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}
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}
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]
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}
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}
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</pre>
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have fun. |