安装IK分词器：

下载链接（如果es版本不同可以修改下版本号）：https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.12.1/elasticsearch-analysis-ik-7.12.1.zip
通常下载是比较慢的：有需要可以从本文章附件资源下载，下载完后放到windows系统插件映射目录下。

依次执行

以下有些目录路径和es安装设置时相关，具体看文章：https://blog.csdn.net/sinat_37828702/article/details/134239500

C:\Users\lxh>docker exec -it es /bin/bash
[root@0172f441db52 elasticsearch]# mkdir /usr/share/elasticsearch/plugins/ik
mkdir: cannot create directory '/usr/share/elasticsearch/plugins/ik': File exists
[root@0172f441db52 elasticsearch]# mv /usr/share/elasticsearch/plugins/elasticsearch-analysis-ik-7.12.1.zip /usr/share/elasticsearch/plugins/ik
[root@0172f441db52 elasticsearch]# cd /usr/share/elasticsearch/plugins/ik
[root@0172f441db52 ik]# unzip elasticsearch-analysis-ik-7.4.0.zip
unzip:  cannot find or open elasticsearch-analysis-ik-7.4.0.zip, elasticsearch-analysis-ik-7.4.0.zip.zip or elasticsearch-analysis-ik-7.4.0.zip.ZIP.
[root@0172f441db52 ik]# unzip elasticsearch-analysis-ik-7.12.1.zip
Archive:  elasticsearch-analysis-ik-7.12.1.zip
  inflating: elasticsearch-analysis-ik-7.12.1.jar
  inflating: httpclient-4.5.2.jar
  inflating: httpcore-4.4.4.jar
  inflating: commons-logging-1.2.jar
  inflating: commons-codec-1.9.jar
   creating: config/
  inflating: config/extra_stopword.dic
  inflating: config/extra_single_word.dic
  inflating: config/main.dic
  inflating: config/surname.dic
  inflating: config/quantifier.dic
  inflating: config/preposition.dic
  inflating: config/extra_single_word_full.dic
  inflating: config/IKAnalyzer.cfg.xml
  inflating: config/suffix.dic
  inflating: config/stopword.dic
  inflating: config/extra_single_word_low_freq.dic
  inflating: config/extra_main.dic
  inflating: plugin-descriptor.properties
  inflating: plugin-security.policy
[root@0172f441db52 ik]# rm -rf elasticsearch-analysis-ik-7.12.1.zip
[root@0172f441db52 ik]#

参考文章：链接

注：后来发现windows只需要在windows指定目录映射文件直接解压插件压缩包到ik文件夹就行了！

重启es

C:\Users\lxh>docker ps
CONTAINER ID   IMAGE                  COMMAND                  CREATED       STATUS       PORTS                                            NAMES
d1008e018083   kibana:7.12.1          "/bin/tini -- /usr/l…"   4 hours ago   Up 4 hours   0.0.0.0:5601->5601/tcp                           kibana
0172f441db52   elasticsearch:7.12.1   "/bin/tini -- /usr/l…"   5 hours ago   Up 5 hours   0.0.0.0:9200->9200/tcp, 0.0.0.0:9300->9300/tcp   es

C:\Users\lxh>docker restart es
es

C:\Users\lxh>

验证