jest
ElasticSearch Java Rest Client Examples
高亮查询(highlight)
POST http://127.0.0.1:9200/news/_search?q=李克强
{
"query" : {
match_all:{}
},
"highlight" : {
"pre_tags" : ["<font color='red'>", "<b>", "<em>"],
"post_tags" : ["</font>", "<b>", "</em>"],
"fields" : [
{"title" : {}},
{"content" : {
"fragment_size" : 350,
"number_of_fragments" : 3,
"no_match_size": 150
}}
]
}
}
POST http://127.0.0.1:9200/news/_search?q=李克强
{
"query" : {
match_all:{}
},
"highlight" : {
"pre_tags" : ["<font color='red'><b><em>"],
"post_tags" : ["</font><b></em>"],
"fields" : [
{"title" : {}},
{"content" : {
"fragment_size" : 350,
"number_of_fragments" : 3,
"no_match_size": 150
}}
]
}
}
删除索引
https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-delete-index.html
DELETE http://127.0.0.1:9200/news
创建索引
https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-create-index.html
PUT http://127.0.0.1:9200/news
创建或修改mapping
https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-put-mapping.html
PUT /{index}/_mapping/{type}
PUT http://127.0.0.1:9200/news/_mapping/article
{
"article": {
"properties": {
"pubdate": {
"type": "date",
"format": "dateOptionalTime"
},
"author": {
"type": "string"
},
"content": {
"type": "string"
},
"id": {
"type": "long"
},
"source": {
"type": "string"
},
"title": {
"type": "string"
},
"url": {
"type": "string"
}
}
}
}
查看mapping
https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-get-mapping.html
GET http://127.0.0.1:9200/_all/_mapping
GET http://127.0.0.1:9200/_mapping
GET http://127.0.0.1:9200/news/_mapping/article
输出:
{
"news": {
"mappings": {
"article": {
"properties": {
"author": {
"type": "string"
},
"content": {
"type": "string"
},
"id": {
"type": "long"
},
"pubdate": {
"type": "date",
"store": true,
"format": "yyyy-MM-dd HH:mm:ss"
},
"source": {
"type": "string"
},
"title": {
"type": "string"
},
"url": {
"type": "string"
}
}
}
}
}
}
删除mapping
https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-delete-mapping.html
[DELETE] /{index}/{type}
[DELETE] /{index}/{type}/_mapping
[DELETE] /{index}/_mapping/{type}
DELETE http://127.0.0.1:9200/news/_mapping/article
ansj分词器测试
http://127.0.0.1:9200/news/_analyze?analyzer=ansj_index&text=习近平
http://127.0.0.1:9200/news/_analyze?analyzer=ansj_index&text=我是中国人
ansj分词器查询
- 普通查询
http://127.0.0.1:9200/news/_search?q=习近平&analyzer=ansj_index&size=50
- 指定term查询
http://127.0.0.1:9200/news/_search?q=content:江泽民&analyzer=ansj_index&size=50
http://127.0.0.1:9200/news/_search?q=title:江泽民&analyzer=ansj_index&size=50
http://127.0.0.1:9200/news/_search?q=source:新华网&analyzer=ansj_index&size=50
- 其中
ansj_index为在elasticsearch.yml文件中配置的ansj分词器
elasticsearch-jdbc
@echo off
set DIR=%~dp0
set LIB="%DIR%\..\lib\*"
set BIN="%DIR%\..\bin\*"
REM ???
echo {^
"type" : "jdbc",^
"jdbc" : {^
"url" : "jdbc:mysql://localhost:3306/news",^
"user" : "root",^
"password" : "root",^
"schedule" : "0 0/15 * ? * *",^
"sql" : [^
{"statement":"SELECT title,content,url,source,author,pubdate FROM news"},^
{^
"statement":"SELECT title,content,url,source,author,pubdate FROM news where pubdate > ?",^
"parameter" : [ "$metrics.lastexecutionstart" ]^
}^
],^
"autocommit" : true,^
"treat_binary_as_string" : true,^
"elasticsearch" : {^
"cluster" : "elasticsearch",^
"host" : "localhost",^
"port" : 9300^
},^
"index" : "news",^
"type" : "article"^
}^
}^ | "%JAVA_HOME%\bin\java" -cp "%LIB%" -Dlog4j.configurationFile="file://%DIR%\log4j2.xml" "org.xbib.tools.Runner" "org.xbib.tools.JDBCImporter"