River Flows In You
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Ubuntu-18-Solr-8-2-搭建

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##安装环境及版本：

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
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    // -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 
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    ![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
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    ![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
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    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
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    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/
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    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
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    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 
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    这段手动注释掉
    Disable TRACE / TRACE Enable everything but TRACE / TRACE 
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    ![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 
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    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

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

    }