IK Analysis for ElasticSearch
The IK Analysis plugin integrates Lucene IK analyzer into elasticsearch, support customized dictionary.
In order to install the plugin, simply run: bin/plugin -install medcl/elasticsearch-analysis-ik/1.0.0
. also download the dict files:
wget http://github.com/downloads/medcl/elasticsearch-analysis-ik/ik.zip
unzip these dict file to your elasticsearch's config folder,like: your-es-root/config/ik
you need a service restart after that!
Dict Configuration (es-root/config/ik/IKAnalyzer.cfg.xml)
IK Analyzer 扩展配置 custom/mydict.dic;custom/sougou.dict custom/ext_stopword.dic
Configuration (elasticsearch.yml)
{ "index" : { "analysis" : { "analyzer" : { "ik" : { type: org.elasticsearch.index.analysis.IkAnalyzerProvider } } } } }
Mapping Configuration
Here is a quick example: 1.create a index
curl -XPUT http://localhost:9200/index
2.create a mapping
curl -XPOST http://localhost:9200/index/fulltext/_mapping -d' { "fulltext": { "_all": { "indexAnalyzer": "ik", "searchAnalyzer": "ik", "term_vector": "no", "store": "false" }, "properties": { "content": { "type": "string", "store": "no", "term_vector": "with_positions_offsets", "indexAnalyzer": "ik", "searchAnalyzer": "ik", "include_in_all": "true", "boost": 8 } } } }'
3.indexing some docs
curl -XPOST http://localhost:9200/index/fulltext/1 -d'
{content:"美国留给伊拉克的是个烂摊子吗"}
'
curl -XPOST http://localhost:9200/index/fulltext/2 -d'
{content:"公安部:各地校车将享最高路权"}
'
curl -XPOST http://localhost:9200/index/fulltext/3 -d'
{content:"中韩渔警冲突调查:韩警平均每天扣1艘中国渔船"}
'
curl -XPOST http://localhost:9200/index/fulltext/4 -d'
{content:"中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"}
'
4.query with highlighting
curl -XPOST http://localhost:9200/index/fulltext/_search -d' { "query" : { "term" : { "content" : "中国" }}, "highlight" : { "pre_tags" : ["", ""], "post_tags" : ["", ""], "fields" : { "content" : {} } } } '
here is the query result
{
"took": 14,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 2,
"max_score": 2,
"hits": [
{
"_index": "index",
"_type": "fulltext",
"_id": "4",
"_score": 2,
"_source": {
"content": "中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"
},
"highlight": {
"content": [
"中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首 "
]
}
},
{
"_index": "index",
"_type": "fulltext",
"_id": "3",
"_score": 2,
"_source": {
"content": "中韩渔警冲突调查:韩警平均每天扣1艘中国渔船"
},
"highlight": {
"content": [
"均每天扣1艘中国渔船 "
]
}
}
]
}
}
have fun.
Description
The IK Analysis plugin integrates Lucene IK analyzer into elasticsearch, support customized dictionary.
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