Ubuntu-18-Solr-8-2-搭建

##安装环境及版本：

• 系统：ubuntu 18.04 LTS
• jdk: 1.8.0
• Tomcat: 9.0.22
• Solr： 8.2.0
• 集群版：https://www.jianshu.com/p/91e6e4cc111d

一. 官方方式(推荐)

1. 下载压缩包，上传并解压
   Solr: https://lucene.apache.org/solr/downloads.html
   官方安装教程：https://lucene.apache.org/solr/guide/8_1/installing-solr.html
2. 启动

   // -force 显示进度
   bin/solr start -force
   ``` 
   ![image.png](https://upload-images.jianshu.io/upload_images/2803682-b99f655da01ee7ee.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
   3. 创建核心

   bin/solr create -c

   ![image.png](https://upload-images.jianshu.io/upload_images/2803682-aba83c383a8f5e30.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
   ![image.png](https://upload-images.jianshu.io/upload_images/2803682-1ba0564ae9ca7025.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
   
   ## 一. Solr+Tomcat
   1 下载压缩包
   tomcat :https://tomcat.apache.org/download-90.cgi
   Solr: https://lucene.apache.org/solr/downloads.html
   2. 上传至服务器并解压

   tar zxvf apache-tomcat-9.0.22.tar.gz
   tar zxvf solr-8.2.0.tgz

   ![image.png](https://upload-images.jianshu.io/upload_images/2803682-199c556af37e6c3e.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
   3. tomcat复制到/usr/local目录下

   cp apache-tomcat-9.0.22 /usr/local/tomcat -r

   4. 把solr的web项目复制到tomcat的webapps下

   //进入到solr的web项目下
   cd solr-8.2.0/server/solr-webapp
   //复制并重命名
   cp webapp/ /usr/local/tomcat/webapps/solr -r

   5. 复制对应jar包到tomcat/webapps/solr/WEB-INF/lib/
   - solr-8.2.0/server/lib/ext 下所有jar包
   - solr-8.2.0/server/lib 下metrics开头的jar包

   // * 代表所有
   cp .jar /usr/local/tomcat/webapps/solr/WEB-INF/lib/
   cp metrics-.jar /usr/local/tomcat/webapps/solr/WEB-INF/lib/

   6. 复制solr-8.2.0/server下的solr文件夹，到tomcat目录下solrhome

   cp solr /usr/local/tomcat/solrhome -r

   7. 编辑tomcat/webapps/solr/WEB-INF/web.xml
   这段手动加上

   solr/home /usr/local/tomcat/solrhome java.lang.String

   这段手动注释掉

   Disable TRACE / TRACE Enable everything but TRACE / TRACE

   ![image.png](https://upload-images.jianshu.io/upload_images/2803682-d915e35e69944b33.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
   ![image.png](https://upload-images.jianshu.io/upload_images/2803682-11ca1d1575bacb9a.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
   8. 启动

   ./tomcat/bin/startup.sh

   浏览器访问：http://ip:8080/solr/index.html
   浏览器界面没相应的，换个浏览器试试
   ![image.png](https://upload-images.jianshu.io/upload_images/2803682-47e08b9978e2ff65.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
   ##二. 中文分词
   1. 下载jar和文件：https://github.com/magese/ik-analyzer-solr
   2. 将jar包放入Solr服务的Jetty或Tomcat的webapp/WEB-INF/lib/目录下；
   3. 将resources目录下的5个配置文件放入solr服务的Jetty或Tomcat的webapp/WEB-INF/classes/目录下；

• IKAnalyzer.cfg.xml

• ext.dic

• stopword.dic

• ik.conf

• dynamicdic.txt

  4. 配置solrhome/new_core/conf的managed-schema，添加ik分词器，示例如下；

  官方安装方式的，修改路径为：solr/server/solr/configsets/_default/conf，然后还需要重新建立collection才行。
  5. 重启服务器
  ![image.png](https://upload-images.jianshu.io/upload_images/2803682-a29a55417c714e29.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
  
  ##三 问题解决：
  1 Can't find resource 'schema.xml' in classpath or '/usr/local/tomcat/solrhome/new_core'
  ![image.png](https://upload-images.jianshu.io/upload_images/2803682-b5b6edc488bc6af1.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
  解决方法：先复制，然后重启tomcat

  cp solr-8.2.0/server/solr/configsets/_default/conf /usr/local/tomcat/solrhome/new_core/ -r

  ## Java代码

  // solr的core名称(索引库) final String collection = "gettingstarted";

  // 添加数据
  @Test
  public void add() throws Exception {

  // 创建客户端
  HttpSolrClient client = new HttpSolrClient.Builder("http://192.168.234.128:8983/solr/").build();
  
  // 添加数据
  final SolrInputDocument doc = new SolrInputDocument();
  doc.addField("id", UUID.randomUUID().toString());
  doc.addField("name", "我是测试数据");
  
  // 保存并提交
  client.add(collection, doc);
  client.commit(collection);

  }

  // 查询数据
  @Test
  public void query() throws Exception {

  // 创建客户端
  HttpSolrClient client = new HttpSolrClient.Builder("http://192.168.234.128:8983/solr/").build();
  
  // 查询条件
  final Map<String, String> queryParamMap = new HashMap<String, String>();
  queryParamMap.put("q", "*:*");
  queryParamMap.put("fl", "id, name");
  queryParamMap.put("sort", "id asc");
  MapSolrParams queryParams = new MapSolrParams(queryParamMap);
  
  // 获取结果
  final QueryResponse response = client.query(collection, queryParams);
  final SolrDocumentList documents = response.getResults();
  
  for (SolrDocument document : documents) {
      System.out.println(document.getFirstValue("id"));
      System.out.println(document.getFirstValue("name"));
  }

  }