solr

Solr及Spring-Data-Solr入门学习

由 ♀尐吖头ヾ 提交于 2019-12-20 13:28:09
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> Solr的安装与配置 多数搜索引擎应用都必须具有某种搜索功能，而搜索功能往往大量的消耗资源导致应用程序运行缓慢。为此，出现了各种用于构建搜索的应用程序，我们要学习的solr正是其中的一款开源搜索平台。 Apache Solr 是建立在Lucene(全文搜索引擎)之上，帮助我从大量的数据中寻找所需信息。不仅限于搜索，Solr也可用于储存目的。像其他NoSQL数据库一样，它是一种非关系数据储存和处理技术。 <!--more--> 下面我们开始喜闻乐见的手摸手教学，教你优雅的整合SSM框架和Solr搜索框架。 项目开源地址： Github 项目中使用了SSM + Shiro + Redis + Solr + Vue.JS + ElementUI技术，优雅的整合了SSM框架阶段几个常见的企业框架；并用Vue.js + ElementUI写了超漂亮的前端页面；如果觉得可以，就点亮右上角star吧(#^.^#)。 如果你对Shiro+用户-角色-权限整合不是很懂，你或许可以看下我的这个项目： 手摸手教你SSM整合Shiro框架后的开发 。 日常学习记录，如果想支持我，希望能在Github上看到你点亮的星星(#^.^#)。 <br/> 本例中使用的Solr和Tomcat我已经上传到了Github，仓库地址：

Solr Schema Java Api 字段定义等相关操作

由 自古美人都是妖i 提交于 2019-12-20 13:15:46
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> import java.io.IOException; import java.nio.file.Paths; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Map.Entry; import org.apache.commons.collections.CollectionUtils; import org.apache.solr.client.solrj.SolrServerException; import org.apache.solr.client.solrj.impl.CloudSolrClient; import org.apache.solr.client.solrj.request.CollectionAdminRequest; import org.apache.solr.client.solrj.request.CollectionAdminRequest.Delete; import org.apache.solr.client.solrj.request.schema.SchemaRequest;

Solr: exact phrase query with a EdgeNGramFilterFactory

由 淺唱寂寞╮ 提交于 2019-12-20 10:47:02
问题 In Solr (3.3), is it possible to make a field letter-by-letter searchable through a EdgeNGramFilterFactory and also sensitive to phrase queries? By example, I'm looking for a field that, if containing "contrat informatique", will be found if the user types: contrat informatique contr informa "contrat informatique" "contrat info" Currently, I made something like this: <fieldtype name="terms" class="solr.TextField"> <analyzer type="index"> <charFilter class="solr.MappingCharFilterFactory"

How to make sure Solr/Lucene won't die with java.lang.OutOfMemoryError?

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-20 10:30:01
问题 I'm really puzzled why it keeps dying with java.lang.OutOfMemoryError during indexing even though it has a few GBs of memory. Is there a fundamental reason why it needs manual tweaking of config files / jvm parameters instead of it just figuring out how much memory is available and limiting itself to that? No other programs except Solr ever have this kind of problem. Yes, I can keep tweaking JVM heap size every time such crashes happen, but this is all so backwards. Here's stack trace of the

How to run Solr Jetty in background

由 你说的曾经没有我的故事 提交于 2019-12-20 09:59:45
问题 I am using the Jetty/Solr build that comes with Solr and would like to run it in the background instead of in the terminal. Right now I start it by java -jar start.jar but I would like it to log to a file and run in the background on the server so that I can close the terminal window. I'm sure there is some java config that I can't find. I have tried java -jar start.jar > log.txt & but no luck still outputs to the terminal window. Thanks. 回答1: Try something like: nohup yourcommand > output

How to fix: Error CREATEing SolrCore 'gettingstarted': Unable to create core

由 ぃ、小莉子 提交于 2019-12-20 09:53:45
问题 I'm getting this error when I try to create a new core in solr. root@ubuntu:/opt/solr# bin/solr create -c gettingstarted -n data_driven_schema_configs Setup new core instance directory: /var/solr/data/gettingstarted Creating new core 'gettingstarted' using command: http://localhost:8983/solr/admin/cores?action=CREATE&name=gettingstarted&instanceDir=gettingstarted Failed to create core 'gettingstarted' due to: Error CREATEing SolrCore 'gettingstarted': Unable to create core [gettingstarted]

How to filter query in solr by date?

由 风格不统一 提交于 2019-12-20 09:49:07
问题 In my SOLR there is date field(published_date) and values are in this format "2012-09-26T10:08:09.123Z" How I can search by simple input like "2012-09-10" instead of full ISO date format. Is it possible in SOLR?I have tried with fq=[2012-09-24%20TO%20NOW] It should return by filtering results greater than published date 2012-09-24 and less than NOW. But it returns data with published date with 2012-09-23,like below <float name="score">2.8183863</float> <str name="name">Local Team Inspires

How do I configure Solr replication with multiple cores

由 此生再无相见时 提交于 2019-12-20 09:44:48
问题 I have Solr running with multiple cores. Because of the heavy load, I want to set up a slave containing the exact same indexes. The documentation http://wiki.apache.org/solr/SolrReplication states "Add the replication request handler to solrconfig.xml for each core", but I only have one solrconfig.xml. My configuration: Config: /data/solr/web/solr/conf/config files Data: /data/solr/data/solr/core data dirs Is it really necessary to copy the solrconfig.xml for each core? And where should I put

Solr date field tdate vs date?

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-12-20 09:32:44
问题 So I have a question about Solr's field date types which is pretty straight forward: what's the difference between a 'date' field and a 'tdate' one? The schema .xml claims that 'For faster range queries, consider the tdate type' and 'A Trie based date field for faster date range queries and date faceting. ' Fair enough... but what's the precisionStep="6" all about? should i change this? does it change the way i would create the query in case I use the tdate? What's the real advantage or what

Solr Fuzzy Search for similar words

由 北城余情 提交于 2019-12-20 09:20:07
问题 I am trying to do a fuzzy search for "jahngir" ~ 0.2, which does not return any results. My indexes has records with data "JAHANGIR RAHMAN MD". If I try a search with exact word "jahangir" ~ 0.2, it works. Can someone please help, on what I am doing wrong. I have spent a lot of time trying to figure out on how the Solr Fuzzy search works. Any links which explain Solr Fuzzy search would be helpful. Below is the text field that I am using for indexing. Thanks in advance. <fieldType name="text"
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