???? ?? ??: Spring Boot ??????? ????? ??

?? ?????? ????? ??? ???? ???? ??? ???? ?? ?????. ??? ?????? ??? ??? ?? ??? ??? ??? ??? ??? ?????? ?? ???? ? ??? ??? ???. ??? ?? ????? ??? ?? ?? ???? ????.

?? ??(?: Caffeine)? ????? ???? ??????? ??? ??? ???? ?? ??? ?????. ?? ????? ???? ?? ?? ??? ??? ? ?????. ??? ?? ??(?: Redisson? Redisson)? ??????? ?? ????? ?? ???? ???? ?????. ?? ??? ?? ???? ?? ??? ??? ?? ???? ???? ? ??? ???? ?? ?? ?? ???? ?? ?????. ??? ?? ?? ?? ???? ???? ??? ?? ??? ??? ? ????.

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• ? ?? ?? ??? ????? ????? ?? ??? ?? ???? ???? ??? ? ????.
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• ? ??? ???? ?? ??? ????? ?? ?? ?? ?? ?? ????? ???? ?? ? ????.
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? ???? ???? ???. Caffeine? Redisson? ???? ?? ??? ?? ??? ??? ?????? ?? ?? ??? ???? ???? ????? ?? ?? ??? ?? ??? ?? ? ????. ? ????? ??? ??? ??? ???? ???? ?? Spring Boot ???????? ????? ??? ???? ??? ?????.

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pom.xml

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<dependency>
    <groupId>com.github.ben-manes.caffeine</groupId>
    <artifactId>caffeine</artifactId>
    <version>3.2.0</version>
</dependency>
<dependency>
    <groupId>org.redisson</groupId>
    <artifactId>redisson</artifactId>
    <version>3.43.0</version>
</dependency>

?? ??? ??? ????.

@Configuration
@EnableCaching
public class CacheConfig implements CachingConfigurer {

    @Value("${cache.server.address}")
    private String cacheAddress;

    @Value("${cache.server.password}")
    private String cachePassword;

    @Value("${cache.server.expirationTime:60}")
    private Long cacheExpirationTime;

    @Bean(destroyMethod = "shutdown")
    RedissonClient redisson() {
        Config config = new Config();
        config.useSingleServer().setAddress(cacheAddress).setPassword(cachePassword.trim());
        config.setLazyInitialization(true);
        return Redisson.create(config);
    }

    @Bean
    @Override
    public CacheManager cacheManager() {
        CaffeineCacheManager cacheManager = new CaffeineCacheManager();
        cacheManager.setCaffeine(Caffeine.newBuilder().expireAfterWrite(cacheExpirationTime, TimeUnit.MINUTES));
        return cacheManager;
    }

    @Bean
    public CacheEntryRemovedListener cacheEntryRemovedListener() {
        return new CacheEntryRemovedListener(cacheManager());
    }

    @Bean
    @Override
    public CacheResolver cacheResolver() {
        return new LocalCacheResolver(cacheManager(), redisson(), cacheEntryRemovedListener());
    }
}

1. ?? ???(CacheManager)

? ???? ??? ? ??? ????? CacheManager? ?? ?? ??? ?????. CaffeineCacheManager Caffeine2. ?? ???

? ??(Caffeine) ??? ??(Redisson) ??? ???? ????? ??? ????? ????? ???. CacheResolver LocalCacheResolver

@Component
public class LocalCacheResolver implements CacheResolver {
    // ... (代碼與原文相同) ...
}

public class LocalCache implements Cache {
    // ... (代碼與原文相同) ...
}

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<dependency>
    <groupId>com.github.ben-manes.caffeine</groupId>
    <artifactId>caffeine</artifactId>
    <version>3.2.0</version>
</dependency>
<dependency>
    <groupId>org.redisson</groupId>
    <artifactId>redisson</artifactId>
    <version>3.43.0</version>
</dependency>

@Configuration
@EnableCaching
public class CacheConfig implements CachingConfigurer {

    @Value("${cache.server.address}")
    private String cacheAddress;

    @Value("${cache.server.password}")
    private String cachePassword;

    @Value("${cache.server.expirationTime:60}")
    private Long cacheExpirationTime;

    @Bean(destroyMethod = "shutdown")
    RedissonClient redisson() {
        Config config = new Config();
        config.useSingleServer().setAddress(cacheAddress).setPassword(cachePassword.trim());
        config.setLazyInitialization(true);
        return Redisson.create(config);
    }

    @Bean
    @Override
    public CacheManager cacheManager() {
        CaffeineCacheManager cacheManager = new CaffeineCacheManager();
        cacheManager.setCaffeine(Caffeine.newBuilder().expireAfterWrite(cacheExpirationTime, TimeUnit.MINUTES));
        return cacheManager;
    }

    @Bean
    public CacheEntryRemovedListener cacheEntryRemovedListener() {
        return new CacheEntryRemovedListener(cacheManager());
    }

    @Bean
    @Override
    public CacheResolver cacheResolver() {
        return new LocalCacheResolver(cacheManager(), redisson(), cacheEntryRemovedListener());
    }
}

@Component
public class LocalCacheResolver implements CacheResolver {
    // ... (代碼與原文相同) ...
}