redlock-spring-boot

Distributed redis lock implemented and integrated with spring boot.

Usage

Maven dependency

To use redlock-spring-boot-starter, you import dependency into your POM.xml:

<dependency>
    <groupId>com.lomagicode.spring.boot</groupId>
    <artifactId>redlock-spring-boot-starter</artifactId>
    <version>${spring-boot-redlock.version}</version>
</dependency>

Use in code

Redlock-spring-boot is very easy-to-use, it exposed a @RedisLock annotation which you can just add to your method that you want to be executed in a redis lock. For example:

@Component
public class Example {
    @RedisLock(lockKey="your-lock-key", expire=10, timeUnit=TimeUnit.SECONDS)
    public void doTask() {
        try {
            // Do some task...
        } catch (Exception e) {
            // Handle exception.
        }
    } 
}

With above code, when you call Example#doTask(), it will try to aquire and hold the lock before really executing the method. if it failed to aquire the lock, the method wouldn't be executed which was as expected.

What should be noticed

Because @RedisLock is implemented with spring aop, the Example class should must be a spring containered bean.

Exception in code wrapped with @RedisLock annotation MUST be caught and handled.

That's all, enjoy it!