Solr学习、安装与Quick Start

之前用Lucene进行了一些简单的例子，现在安装Solr学习一下。

在mac下，貌似可以直接brew install solr来进行安装。尝试一下。

貌似安装成功了：

==> Summary
🍺  /usr/local/Cellar/solr/6.1.0: 5,968 files, 216.8M, built in 3 minutes 56 seconds

从这个页面能够看到Quick Start文档：

http://lucene.apache.org/solr/quickstart.html

按照上面的说明来一步步操作。

首先cd到solr安装目录：

cd /usr/local/Cellar/solr/6.1.0

然后运行Solr启动命令：

bin/solr start -e cloud -noprompt

能够看到页面中打印出一系列启动的日志：

包括Zookeeper相关：
Connecting to ZooKeeper at localhost:9983 ...
Uploading /usr/local/Cellar/solr/6.1.0/server/solr/configsets/data_driven_schema_configs/conf for config gettingstarted to ZooKeeper at localhost:9983

最后显示：

SolrCloud example running, please visit: http://localhost:8983/solr 

然后在浏览器打开 http://localhost:8983/solr ，能够看到管理端界面，说明Solr启动成功！

 

另外这个时候，在页面 http://localhost:8983/solr/#/gettingstarted/query 也能够看到搜索的界面。现在因为还没有文档和索引，所以即使用"*:*"去搜索全部文档，也是还没有结果，如图：

 

然后继续按照上面Quick Start的教程，进行下一步。在Solr目录运行命令：

bin/post -c gettingstarted docs/

报错，说docs这个目录不存在。看了一下，的确在当前安装目录下没有docs这个目录。

所以换了一个目录：
bin/post -c gettingstarted examples/

打印了很多日志，最后显示日志：
305 files indexed.
COMMITting Solr index changes to http://localhost:8983/solr/gettingstarted/update...
Time spent: 0:00:22.017

应该是建索引完成。

这时候，在刚刚的查询页面 http://localhost:8983/solr/#/gettingstarted/query ，同样使用 "*:*"查询，就可以获得很多结果：

 

再把查询条件从 "*:*"改成"lucene"，就能够得到25条结果（其中用 *和用 *:* 都可以得到1397条结果，貌似都是全部结果）：

{
  "responseHeader":{
    "zkConnected":true,
    "status":0,
    "QTime":37,
    "params":{
      "q":"lucene",
      "indent":"on",
      "wt":"json",
      "_":"1476952597488"}},
  "response":{"numFound":25,"start":0,"maxScore":7.1965156,"docs":[
      {
        "id":"978-1933988177",
        "cat":["book",
          "paperback"],
        "name":["Lucene in Action, Second Edition"],
        "author":["Michael McCandless"],
        "sequence_i":1,
        "genre_s":"IT",
        "inStock":[true],
        "price":[30.5],
        "pages_i":475,
        "_version_":1548697679150710784},
      {
        "id":"SOLR1000",
        "name":["Solr, the Enterprise Search Server"],
        "manu":["Apache Software Foundation"],
        "cat":["software",
          "search"],
        "features":["Advanced Full-Text Search Capabilities using Lucene",
          "Optimized for High Volume Web Traffic",
          "Standards Based Open Interfaces - XML and HTTP",
          "Comprehensive HTML Administration Interfaces",
          "Scalability - Efficient Replication to other Solr Search Servers",
          "Flexible and Adaptable with XML configuration and Schema",
          "Good unicode support: héllo (hello with an accent over the e)"],
        "price":[0.0],
        "popularity":[10],
        "inStock":[true],
        "incubationdate_dt":"2006-01-17T00:00:00Z",
        "_version_":1548697685509275648},
      {
        "id":"/usr/local/Cellar/solr/6.1.0/example/example-DIH/solr/db/conf/lang/stopwords_el.txt",
        "stream_size":[801],
        "x_parsed_by":["org.apache.tika.parser.DefaultParser",
          "org.apache.tika.parser.txt.TXTParser"],
        "stream_content_type":["text/plain"],
        "content_encoding":["UTF-8"],
        "resourcename":["/usr/local/Cellar/solr/6.1.0/example/example-DIH/solr/db/conf/lang/stopwords_el.txt"],
        "content_type":["text/plain; charset=UTF-8"],
        "_version_":1548697672428290048},

......

 

关闭Solr。使用下面的命令：

bin/solr stop -all

会打印出下面这些日志：

$ bin/solr stop -all
Sending stop command to Solr running on port 7574 ... waiting 5 seconds to allow Jetty process 7009 to stop gracefully.
Sending stop command to Solr running on port 8983 ... waiting 5 seconds to allow Jetty process 6911 to stop gracefully.

然后localhost:8983就不再能访问。

 

以上内容，参考 http://lucene.apache.org/solr/quickstart.html

后面，可以对Solr做进一步的学习。