When I tried to use redis. Learning to write distributed lock found stringRedisTemplate opsForValue () setIfAbsent (lockKey, clientId, 30, TimeUnit. SECONDS); The return value is null
API shows the return value to a Boolean result in I can't for the following logic
Is this the official bug? The eldest brother have to know is how to return a responsibility?
Attach the test code

 
The @autowired 
Private StringRedisTemplate StringRedisTemplate; 
@ Test 
Void contextLoads () {
//here should return true or false but returned to the null effect and set the 
Boolean aBoolean=stringRedisTemplate 
OpsForValue () 
SetIfAbsent (" key ", "value", 100, TimeUnit. SECONDS); 
System. The out. Println (aBoolean); 

//a Boolean key=stringRedisTemplate. Expire (" key ", 10, TimeUnit. SECONDS); 
//System. Out. Println (key); 
} 

CodePudding user response:

I tried once, no problem, the same code, I insert returns true on success

CodePudding user response:

reference 1st floor life god reply:

I tried once, no problem, the same code, I insert return true success

Because the import different jars?

CodePudding user response:

Well know why

Introduces redisson rely on return null to remove this good don't know why

CodePudding user response:

If the two are used to, can't get rid of