CHEN Jian's Java Blog

schema.xml里配置term位置信息 <field name="text" type="text_en_splitting_tight" indexed="true" stored="true" multiValued="false" [b] termVectors="true" termPositions="true" termOffsets="true"[/b] /> 如果使用了比较智能的分词，则要在solrconfig.xml里配置breakIterator <boundaryScanner name="breakIterator" default="true" class="solr.highlight.BreakIteratorBoundaryScanner"> <lst name="defaults"> <!– type should be one of CHARACTER, WORD(default), LINE and SENTENCE –> <str name="hl.bs.type">SENTENCE</str> <!– language and country are used when constructing Locale object. –> <!– And the Locale object will be used when getting instance …

solr里要使用FastVectorHighlighter时须使用的配置和代码 Read More »

http://wiki.apache.org/solr/SolrInstall#Setup 按这个说法，似乎要部署的对象有两份：一份solr.war，一份solr.home指向的solr应用. 在maven + svn 环境下，这种东西要怎么部署，需要好好想想。

solr不是一个jar库，而是一个java web app应用. 你的系统一般不是引入一个库，而是要与新搭建的solr webapp进行远程通信。 运行在servlet容器里的solr，在使用方式上相当于一个数据库，是独立的。 如果你一定要把solr当成jar库来用也可以，官方提供了一个"EmbeddedSolr"，看合不合你的胃口 ： http://wiki.apache.org/solr/EmbeddedSolr

这里用的是FastVectorHighlighter，可以高效地对付大文件 <!–pom.xml–> <dependency> <groupId>org.apache.lucene</groupId> <artifactId>lucene-fast-vector-highlighter</artifactId> <version>3.0.0</version> </dependency> package player.kent.chen.temp.lucene.highlight; import java.io.File; import org.apache.commons.io.FileUtils; import org.apache.lucene.analysis.standard.StandardAnalyzer; import org.apache.lucene.document.Document; import org.apache.lucene.document.Field; import org.apache.lucene.document.Field.Index; import org.apache.lucene.document.Field.Store; import org.apache.lucene.document.Field.TermVector; import org.apache.lucene.index.IndexWriter; import org.apache.lucene.store.Directory; import org.apache.lucene.store.FSDirectory; import org.apache.lucene.util.Version; public class MyHighlightIndexer { public static void main(String[] args) throws Exception { String rootDir = "/home/kent/diskD/home-kent-dev/workspace/kent-temp/data/lucene-sanguo"; File contentDir = new File(rootDir, "content"); …

代码示例：Lucene Highlighter Read More »

package player.kent.chen.temp.lucene.stemming; import java.io.IOException; public class MyLuceneStemmingDemo { private final static String allText = "The companies organized an better activity than the individuals."; public static void main(String[] args) throws Exception { Analyzer snowball = new SnowballAnalyzer(Version.LUCENE_30, "English"); doSearch(snowball, "company"); //搜不到 doSearch(snowball, "compani"); //搜得到 doSearch(snowball, "organize"); //搜不到 doSearch(snowball, "organiz");//搜不到 doSearch(snowball, "organ");//搜得到 doSearch(snowball, "good");//搜不到 doSearch(snowball, "act");//搜不到 doSearch(snowball, …

Lucene: snowball一点都不好用 Read More »

我原以为可以search阶段直接把特定的payload取出来，然后打印一下，但google了很久，似乎没有直接的API. Payload可能本来就不适用于这种用况。 Lucene in Action说， 引用 "… use it during search, either to decide which documents are included in the search results or to alter how matched documents are scored or sorted"