Redis学习笔记#10 lua脚本，整合springboot调用

lua代码：

-- checkandset.lua
local current = redis.call('GET', KEYS[1])
if current == ARGV[1]
  then redis.call('SET', KEYS[1], ARGV[2])
  return true
end
return false

 

配置：

@Bean
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {

　　RedisTemplate<String, Object> template = new RedisTemplate<>();　　
　　template.setConnectionFactory(factory);
　　template.setKeySerializer(new StringRedisSerializer());
　　template.setValueSerializer(new StringRedisSerializer());
　　return template;
}

@Bean
public RedisScript<Boolean> redisScript() {
　　DefaultRedisScript<Boolean> redisScript = new DefaultRedisScript<>();
   ScriptSource scriptSource = new ResourceScriptSource(new ClassPathResource("META-INF/scripts/checkandset.lua"));
   redisScript.setResultType(Boolean.class);
   redisScript.setScriptSource(scriptSource);
   return redisScript;
}

 

调用：

@Autowired
RedisTemplate redisTemplate;

@Autowired
RedisScript<Boolean> redisScript;

List<String> keys = new ArrayList<>();
keys.add("stock");
return redisTemplate.execute(redisScript, keys, 2);