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```java @Service public class MyService { @Autowired private CacheManager cacheManager; @Cacheable("myCache") // 指定快取名稱 public String getCachedData(String key) { // 此方法的結果將被緩存 return expensiveDatabaseOperation(key); } @CachePut("myCache") // 更新緩存 public String updateCachedData(String key, String newValue) { updateDatabase(key, newValue); return newValue; } @CacheEvict("myCache") // 清除快取 public void clearCachedData(String key) { deleteFromDatabase(key); } public void clearCacheItem(String key) { // 根據條件調用快取清除操作 if (someCondition) { cacheManager.getCache("myCache").evict(key); } } public void clearCacheItem() { cacheManager.getCache("myCache").clear(); } } ```
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