?? solr是基于lucene的一个全文检索服务器，提供了一些类似webservice的API接口，用户可以通过http请求solr服务器，进行索引的建立和索引的搜索。
索引建立的过程：用户提交的文本会经过分词器进行分词，分词后的关键字会存到索引库里，索引库是关键字和目标文档的映射集。
索引搜索的过程：用户提交的搜索文本也是会经过分析器，得到的关键字会去索引库查询对应的目标文档并返回给客户端，采用的是权重排序算法。
1.solr的安装
2.中文分词器的安装
配置信息：
<!--
中文分词器
-->
<
fieldType
name
="text_ik"
class
="solr.TextField"
>
<
analyzer
type
="query"
isMaxWordLength
="true"
class
="org.wltea.analyzer.lucene.IKAnalyzer"
/>
<
analyzer
type
="index"
isMaxWordLength
="false"
class
="org.wltea.analyzer.lucene.IKAnalyzer"
/>
</
fieldType
>
3.1 DIH全量同步
相关配置信息：
<!--
数据导入配置
-->
<
requestHandler
name
="/dataimport"
class
="org.apache.solr.handler.dataimport.DataImportHandler"
>
<
lst
name
="defaults"
>
<
str
name
="config"
>data-config.xml</str></lst></requestHandler>
3.2
相关配置信息：
3.3 schema.xml同步字段配置
相关配置信息：
<!--
同步mysql爬虫表的字段
-->
<
field
name
="create_date"
type
="date"
indexed
="true"
stored
="true"
/>
<
field
name
="update_date"
type
="date"
indexed
="true"
stored
="true"
/>
<
field
name
="news_url"
type
="text_general"
indexed
="true"
stored
="true"
/>
<
field
name
="news_origin"
type
="text_general"
indexed
="true"
stored
="true"
/>
<
field
name
="key_word"
type
="text_general"
indexed
="true"
stored
="true"
/>
<
field
name
="news_html"
type
="text_ik"
indexed
="true"
stored
="true"
/>
<
field
name
="is_publish"
type
="int"
indexed
="true"
stored
="true"
/>
<
field
name
="is_del"
type
="int"
indexed
="true"
stored
="true"
/>
<
field
name
="flag_number"
type
="text_general"
indexed
="true"
stored
="true"
/>
<
field
name
="out_line"
type
="text_ik"
indexed
="true"
stored
="true"
/>
<
field
name
="state"
type
="int"
indexed
="true"
stored
="true"
/>
<!--
同步mysql爬虫表的字段end
-->
4.1DIH的增量同步（其实就是修改data-config.xml配置文件）
相关配置信息：
<
dataConfig
>
<
dataSource
driver
="com.mysql.jdbc.Driver"
url
="jdbc:mysql://192.168.40.1:3306/shanghang"
user
="root"
password
="root"
/>
<
document
>
<
entity
name
="consensus_data2"
pk
="id"
transformer
="DateFormatTransformer"
query
="select * from consensus_data2 where id >= ‘${dataimporter.request.id}‘"
deltaImportQuery
="select * from consensus_data2 where id = ‘${dih.delta.id}‘"
deltaQuery
="select id from consensus_data2 where create_date > ‘${dataimporter.last_index_time}‘"
>
<
field
column
="id"
name
="id"
/>
<
field
column
="create_date"
name
="create_date"
dateTimeFormat
=‘yyyy-MM-dd HH:mm:ss‘
/>
<
field
column
="update_date"
name
="update_date"
dateTimeFormat
=‘yyyy-MM-dd HH:mm:ss‘
/>
<
field
column
="news_url"
name
="news_url"
/>
<
field
column
="news_origin"
name
="news_origin"
/>
<
field
column
="keyWord"
name
="key_word"
/>
<
field
column
="news_html"
name
="news_html"
/>
<
field
column
="is_publish"
name
="is_publish"
/>
<
field
column
="is_del"
name
="is_del"
/>
<
field
column
="flag_number"
name
="flag_number"
/>
<
field
column
="out_line"
name
="out_line"
/>
<
field
column
="state"
name
="state"
/>
</
entity
>
</
document
>
</
dataConfig
>
原文：http://www.cnblogs.com/3chi/p/7262080.html
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