Redis executes Lua script

由[db:作者]

1月 4, 2022 code

1、 Client execution
redis-cli –eval myscript.lua key1 key2 , arg1 arg2 arg3
Note that you use commas to separate key And parameters , High energy reminder , Note blank space （key and key、key And commas 、 Commas and arguments 、 There should be spaces between parameters and between them ）
./redis-cli –eval [lua Script ] [key…] Space , Space [args…]
2、 Command execution


Command format	explain	Corresponding Jedis client Jedis One of the methods of object （ There are more overload methods ）
EVAL script numkeys key [key …] arg [arg …]	perform Lua Script	public Object eval(String script, int keyCount, String… params)
EVALSHA sha1 numkeys key [key …] arg [arg …]	According to the given sha1 Check code , Evaluate scripts cached in the server	public Object evalsha(String sha1, int keyCount, String… params)
SCRIPT LOAD script	Cache the given script , Don’t execute , And back to sha1 Check value	public String scriptLoad(String script)
SCRIPT EXISTS sha1 [sha1 …]	Given one or more scripts SHA1 The checksum , Returns a containing 0 and 1 A list of , Indicates whether the script specified by the checksums has been saved in the cache	public List<Boolean> scriptExists(String… sha1)
SCRIPT FLUSH	Clear all Lua Script cache
SCRIPT KILL	Kill the currently running Lua Script , If and only if the script does not perform any write operations , This order will take effect ( If a write operation has been performed , You have to go through shutdown nosave Order to deal with )