下载elasticsearch-analysis-ik

进入elasticsearch安装目录

#cd /usr/local/elasticsearch-7.3.0/

上传并解压elasticsearch-analysis-ik-7.3.0.zip

#mkdir -p /usr/local/elasticsearch-7.3.0/plugins/ik

#unzip /home/es/elasticsearch-analysis-ik-7.3.0.zip -d /usr/local/elasticsearch-7.3.0/plugins/ik

重启elasticsearch，插件会自动扫描到并生效

#bin/elasticsearch

验证是否安装成功

curl 127.0.0.1:9200/_cat/plugins