因为本人使用的elasticsearch的版本为5.2.1,相对应的中文分词器的下载地址为https://github.com/medcl/elasticsearch-analysis-ik/tree/v5.2.1.(请根据自己使用版本的不同进行下载)
安装其实挺简单,编译后解压缩到elasticsearch的安装目录,以下是我的安装目录.
unzip -d /usr/local/elasticsearch/plugins/ik/ elasticsearch-analysis-ik-5.2.1.zip
然后重启elasticsearch.
如果使用docker安装elasticsearch 6.2.4的步骤如下
docker pull docker.elastic.co/elasticsearch/elasticsearch:6.2.4
docker run -d --name myes -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" -v /etc/localtime:/etc/localtime:ro docker.elastic.co/elasticsearch/elasticsearch:6.2.4
安装中文分词器
docker cp elasticsearch-analysis-ik-6.2.4.zip myes:/usr/share/elasticsearch 将分词器的压缩文件放入容器中
docker exec -it myes bash进入容器
mkdir ./plugins/analysis-ik 在plugins目录下新建analysis-ik目录，此处与5.2.1不同
unzip -d ./ elasticsearch-analysis-ik-6.2.4.zip
cp -r ./elasticsearch/* ./plugins/analysis-ik/ 将解压后的./elasticsearch目录下的所有文件拷入./plugins/analysis-ik目录下
rm -rf ./elasticsearch
rm elasticsearch-analysis-ik-6.2.4.zip
exit
docker restart myes 重启elasticsearch服务
我们还是插入四条数据,检索全部如下
http://192.168.5.182:9200/ecommerce/toothpaste/_search
{
"took": 123,
"timed_out": false,
"_shards": {
"total": 5,
"successful": 5,
"failed": 0
},
"hits": {
"total": 4,
"max_score": 1,
"hits": [
{
"_index": "ecommerce",
"_type": "toothpaste",
"_id": "2",
"_score": 1,
"_source": {
"name": "佳洁士牙膏",
"desc": "有效防蛀",
"price": 25,
"producer": "佳洁士生产商",
"tags": [
"防蛀"
]
}
},
{
"_index": "ecommerce",
"_type": "toothpaste",
"_id": "4",
"_score": 1,
"_source": {
"name": "特别牙膏",
"desc": "特别美白",
"price": 50,
"producer": "特别牙膏生产商",
"tags": [
"美白",
"防蛀"
]
}
},
{
"_index": "ecommerce",
"_type": "toothpaste",
"_id": "1",
"_score": 1,
"_source": {
"name": "高露洁牙膏",
"desc": "高效美白",
"price": 30,
"producer": "高露洁生产商",
"tags": [
"美白",
"防蛀"
]
}
},
{
"_index": "ecommerce",
"_type": "toothpaste",
"_id": "3",
"_score": 1,
"_source": {
"name": "中华牙膏",
"desc": "草本植物",
"price": 40,
"producer": "中华生产商",
"tags": [
"清新"
]
}
}
]
}
}
全文检索
[root@host2 bin]# curl -XGET 'http://192.168.5.182:9200/ecommerce/toothpaste/_search' -d'
> {
> "query":{
> "match":{
> "producer":"牙膏生产商"
> }
> }
> }'
{"took":76,"timed_out":false,"_shards":{"total":5,"successful":5,"failed":0},"hits":{"total":4,"max_score":3.6265414,"hits":[{"_index":"ecommerce","_type":"toothpaste","_id":"4","_score":3.6265414,"_source":{
"name":"特别牙膏",
"desc":"特别美白",
"price":50,
"producer":"特别牙膏生产商",
"tags":["美白","防蛀"]
}},{"_index":"ecommerce","_type":"toothpaste","_id":"3","_score":1.7306128,"_source":{
"name":"中华牙膏",
"desc":"草本植物",
"price":40,
"producer":"中华生产商",
"tags":["清新"]
}},{"_index":"ecommerce","_type":"toothpaste","_id":"2","_score":1.6805282,"_source":{
"name":"佳洁士牙膏",
"desc":"有效防蛀",
"price":25,
"producer":"佳洁士生产商",
"tags":["防蛀"]
}},{"_index":"ecommerce","_type":"toothpaste","_id":"1","_score":1.5775073,"_source":{
"name":"高露洁牙膏",
"desc":"高效美白",
"price":30,
"producer":"高露洁生产商",
"tags":["美白","防蛀"]
}}]}}
根据以上结果可以看出,中文分词检索成功,所有有生产商的都会被检索出来,而由"牙膏生产商"检索出的特别牙膏生产商排第一,为最为匹配的.
