问题描述
我想在我的 Spring 5 应用程序中集成 caffeine Cache。我知道我需要 caffeineCacheManager,但我没有这个类。我找到的唯一方法是将 SpringBoot Starter Cache 包添加到 pom,但我不想使用 Spring Boot。
我的 pom 中有这个 Spring 包:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>5.2.8.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>5.2.8.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.8.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.8.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-web -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
<version>5.3.3.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-config -->
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
<version>5.3.3.RELEASE</version>
</dependency>
有什么办法可以使用带有 Spring Boot 的 caffeineCacheManager 类?谢谢。
实际上我正在使用此代码来配置缓存:
@Bean
public CacheManager cacheManager() {
SimpleCacheManager cacheManager = new SimpleCacheManager();
cacheManager.setCaches(Arrays.asList(
new ConcurrentMapCache(
"categorias",caffeine.newBuilder().expireAfterWrite(Duration.ofDays(1)).maximumSize(100).build().asMap(),false
),new ConcurrentMapCache(
"ciudad",caffeine.newBuilder().maximumSize(100).build().asMap(),false
)
));
return cacheManager;
}
解决方法
主要的 spring 缓存实现位于 spring-context 依赖项中。您应该只设置该缓存管理器并使用 @Cacheable 注释。 示例参见:https://www.baeldung.com/spring-cache-tutorial 如果您需要使用 Spring 缓存机制连接 Caffeine 缓存的代码示例,请告诉我。
CaffeineCacheManager 配置:
CaffeineCacheManager 位于
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>5.2.8.RELEASE</version>
</dependency>
和咖啡因依赖:
<dependency>
<groupId>com.github.ben-manes.caffeine</groupId>
<artifactId>caffeine</artifactId>
<version>2.8.8</version>
</dependency>
配置:
@Configuration
@EnableCaching
public class Config {
@Bean
public Caffeine<Object,Object> caffeineConfig() {
return Caffeine.newBuilder().expireAfterWrite(60,TimeUnit.MINUTES);
}
@Bean
public CacheManager cacheManager(Caffeine<Object,Object> caffeine) {
CaffeineCacheManager caffeineCacheManager = new CaffeineCacheManager();
caffeineCacheManager.setCaffeine(caffeine);
return caffeineCacheManager;
}
}