spring缓存中的@Caching

Question

我习惯在页面列表中使用缓存。

我想要1~5页缓存。

所以,

@Cacheable(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, #pageIndex, #pagePerNumber)", condition = "#pageIndex < 5")

关键字如下：

'brandon@[EventChainServiceImpl]0/10'

'brandon@[EventChainServiceImpl]1/10'

'brandon@[EventChainServiceImpl]2/10'

所以,

@Caching(evict = {
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 0, 5)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 0, 10)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 0, 25)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 0, 50)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 1, 5)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 1, 10)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 1, 25)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 1, 50)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 2, 5)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 2, 10)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 2, 25)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 2, 50)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 3, 5)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 3, 10)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 3, 25)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 3, 50)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 4, 5)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 4, 10)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 4, 25)"),
    @CacheEvict(value = "cacheData", key = "T(com.insoft.pacific.util.CacheKeyGenerator).cacheKey(#root.targetClass, 4, 50)") })

我怎么才能简化这个过程呢？

Answer 1

我认为你可以注入CacheManager和...，就像这样：

@Autowired
CacheManager cacheManager;
public Object doSomething() {
    Cache cache = cacheManager.getCache("yourCacheName");
    for (String key : yourKeyIterator) {
        cache.evict(key);
    }
}

我认为这对性能是有害的，因为需要多次调用cache.evict(key)。

我认为调用本机缓存实现方法更好。

(Ehcache)cache.getNativeCache()...