说明：安装的Redis服务器必须为 4.0 以上版本，通过info命令查看
127.0.0.1:> INFO
redis_version:4.0.
一、安装 RediSearch
git clone https://github.com/RedisLabsModules/RediSearch.git
cd RediSearch/src
make all # Assuming you have a redis build from the unstable branch:
/path/to/redis-server --loadmodule ./redisearch.so
二、启动服务
www@TinywanAliYun:/usr/local/redis4./etc$ /usr/local/redis4./bin/redis-server --loadmodule /home/www/build/RediSearch/src/redisearch.so
:C Nov ::07.255 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
:C Nov ::07.255 # Redis version=4.0., bits=, commit=, modified=, pid=, just started
:C Nov ::07.255 # Configuration loaded
:M Nov ::07.256 # Creating Server TCP listening socket *:: bind: Address already in use
可以动态加载
www@TinywanAliYun:/usr/local/redis4./etc$ redis-cli
127.0.0.1:> MODULE LOAD /home/www/build/RediSearch/src/redisearch.so
配置文件加载：
vi /usr/local/redis4./etc/redis.conf
#文件底部加入
loadmodule /home/www/build/RediSearch/src/redisearch.so
重启服务器
sudo systemctl restart redis
三、使用
（1）使用字段和权重创建索引（默认权重为1.0）
127.0.0.1:> FT.CREATE myIdx SCHEMA title TEXT WEIGHT 5.0 body TEXT url TEXT
OK
（2）将文档添加到索引
127.0.0.1:> FT.ADD myIdx doc1 1.0 FIELDS title "hello world" body "lorem ipsum" url "http://redis.io"
OK
（3）搜索索引
127.0.0.1:> FT.SEARCH myIdx "hello world" LIMIT
) (integer)
) "doc1"
) ) "title"
) "hello world"
) "body"
) "lorem ipsum"
) "url"
) "http://redis.io"
注意：输入预计是有效的utf-8或ascii。目前引擎无法处理宽字符unicode。
（4）删除索引
127.0.0.1:> FT.DROP myIdx
OK
（5）添加和获取自动完成建议
127.0.0.1:> FT.SUGADD autocomplete "hello world"
OK 127.0.0.1:> FT.SUGGET autocomplete "he"
) "hello world"