在实际搜索需求中，常常需要对中文做拼音搜索，首字母搜索或者中文拼音首字母混合搜索。

比如要对 "广发聚财信用" 这几个中文进行拼音搜索，我们可能的搜索关键字是：“广发”，“聚财”，“guangfa”，“gfjc”，“guangfajucai”，“guangfjc”，“gfajcai”，“广发juc” 等等的混合搜索，本文主要使用elasticsearch-analysis-lc-pinyin 实现针对这种中文和拼音的混合或全拼、首字母的搜索。

该插件主要基于elasticsearch1.4.5开发出来，更高的版本是否支持请自行测试

一、安装插件

git 地址：http://git.oschina.net/music_code_m/elasticsearch-analysis-lc-pinyin

1、用git下载源码

git clone https://git.oschina.net/music_code_m/elasticsearch-analysis-lc-pinyin.git

2、编译

进入elasticsearch-analysis-lc-pinyin根目录执行如下命令

3、安装

执行编译完成后会在releases文件夹下生成elasticsearch-analysis-lc-pinyin-1.4.5.zip压缩包

将该文件拷贝到es的plugin目录下并解压

修改es的config目录下elasticsearch.yml文件声明pinyin插件，在文件末尾加上

接下来重启es就OK啦。

上面的配置定义了lc_pinyin分词器，其中

lc_index：这个分词器用来索引文档时指定的分词器

lc_search：这个分词器用在搜索时指定的分词器

现在就可以测试下分词效果了，

1).首先创建一个索引

2 ) 创建mapping

3) 索引一条数据

4)构造查询条件

搜索：guangfa

curl -XPOST http://localhost:9200/index/_search?pretty -d '

{

"query": {

"match": {

"content": {

"query": "guangfa",

"analyzer": "lc_search",

"type": "phrase",

"slop": 1,

"zero_terms_query": "NONE"

}

}

},

"highlight": {

"pre_tags": [

"",

""

],

"post_tags": [

"",

""

],

"fields": {

"content": {}

}

}

}'

返回结果:

{

"took" : 2,

"timed_out" : false,

"_shards" : {

"total" : 5,

"successful" : 5,

"failed" : 0

},

"hits" : {

"total" : 1,

"max_score" : 4.841117,

"hits" : [ {

"_index" : "index",

"_type" : "fulltext",

"_id" : "1",

"_score" : 4.841117,

"_source": {"content":"广发聚财信用"}

"highlight" : {

"content" : [ "广发聚财信用" ]

}

} ]

}

}

搜索：guang发ju财

curl -XPOST http://localhost:9200/index/_search?pretty -d '

{

"query": {

"match": {

"content": {

"query": "guang发ju财",

"analyzer": "lc_search",

"type": "phrase",

"slop": 1,

"zero_terms_query": "NONE"

}

}

},

"highlight": {

"pre_tags": [

"",

""

],

"post_tags": [

"",

""

],

"fields": {

"content": {}

}

}

}'

{

"took" : 15,

"timed_out" : false,

"_shards" : {

"total" : 5,

"successful" : 5,

"failed" : 0

},

"hits" : {

"total" : 1,

"max_score" : 3.6822338,

"hits" : [ {

"_index" : "index",

"_type" : "fulltext",

"_id" : "1",

"_score" : 3.6822338,

"_source":{"content":"广发聚财信用"}

"highlight" : {

"content" : [ "广发聚财信用" ]

}

} ]

}

}

搜索：j财xy

curl -XPOST http://localhost:9200/index/_search?pretty -d '

{

"query": {

"match": {

"content": {

"query": "j财xy",

"analyzer": "lc_search",

"type": "phrase",

"slop": 1,

"zero_terms_query": "NONE"

}

}

},

"highlight": {

"pre_tags": [

"",

""

],

"post_tags": [

"",

""

],

"fields": {

"content": {}

}

}

}'

{

"took" : 22,

"timed_out" : false,

"_shards" : {

"total" : 5,

"successful" : 5,

"failed" : 0

},

"hits" : {

"total" : 1,

"max_score" : 6.682234,

"hits" : [ {

"_index" : "index",

"_type" : "fulltext",

"_id" : "1",

"_score" : 6.682234,

"_source":{"content":"广发聚财信用"}

"highlight" : {

"content" : [ "广发聚财信用" ]

}

} ]

}

}

搜索：gfjc

curl -XPOST http://localhost:9200/index/_search?pretty -d '

{

"query": {

"match": {

"content": {

"query": "gfjc",

"analyzer": "lc_search",

"type": "phrase",

"slop": 1,

"zero_terms_query": "NONE"

}

}

},

"highlight": {

"pre_tags": [

"",

""

],

"post_tags": [

"",

""

],

"fields": {

"content": {}

}

}

}'

{

"took" : 6,

"timed_out" : false,

"_shards" : {

"total" : 5,

"successful" : 5,

"failed" : 0

},

"hits" : {

"total" : 1,

"max_score" : 6.682234,

"hits" : [ {

"_index" : "index",

"_type" : "fulltext",

"_id" : "1",

"_score" : 6.682234,

"_source":{"content":"广发聚财信用"}

"highlight" : {

"content" : [ "广发聚财信用" ]

}

} ]

}

}