spring-cache

问题 Thanks to the 'Getting started guide' in ‘simple-spring-memcached’ I manage to get memcached working in my project using ‘Spring 3.1’ example in in the guide , Im using ‘spymemcached’ as the provider . All working well when memcached server is up and running. However, when memcache server is not accessible (deliberately shut down for testing) underline code doesn’t work and application wont execute simply throwing runtime exception ,stating that unable to connect to memcache server and

问题 Thanks to the 'Getting started guide' in ‘simple-spring-memcached’ I manage to get memcached working in my project using ‘Spring 3.1’ example in in the guide , Im using ‘spymemcached’ as the provider . All working well when memcached server is up and running. However, when memcache server is not accessible (deliberately shut down for testing) underline code doesn’t work and application wont execute simply throwing runtime exception ,stating that unable to connect to memcache server and

问题 I am working on a Spring-MVC application. After the profiler went through the backend, I noticed that getCurrentlyAuthenticatedUser() is an hotspot. For the reason I thought of using cache. Unfortunately it is not working. Once the user logs in, I am getting null user, even though the user is logged in. What is going wrong. Ofcourse when I remove the @Cacheable annotation and config from XML, everything works fine. Any help would be nice. PersonServiceImpl : @Service @Transactional public

问题 I have recently started working on caching the result from a method. I am using @Cacheable and @CachePut to implement the desired the functionality. But somehow, the save operation is not updating the cache for findAll method. Below is the code snippet for the same: @RestController @RequestMapping(path = "/test/v1") @CacheConfig(cacheNames = "persons") public class CacheDemoController { @Autowired private PersonRepository personRepository; @Cacheable @RequestMapping(method = RequestMethod.GET

问题 I am working with Spring and EhCache I have the following method @Override @Cacheable(value="products", key="#root.target.PRODUCTS") public Set<Product> findAll() { return new LinkedHashSet<>(this.productRepository.findAll()); } I have other methods working with @Cacheable and @CachePut and @CacheEvict. Now, imagine the database returns 100 products and they are cached through key="#root.target.PRODUCTS" , then other method would insert - update - deleted an item into the database. Therefore

问题 I am working with Spring and EhCache I have the following method @Override @Cacheable(value="products", key="#root.target.PRODUCTS") public Set<Product> findAll() { return new LinkedHashSet<>(this.productRepository.findAll()); } I have other methods working with @Cacheable and @CachePut and @CacheEvict. Now, imagine the database returns 100 products and they are cached through key="#root.target.PRODUCTS" , then other method would insert - update - deleted an item into the database. Therefore

问题 I am facing issue while getting value from cache. java.lang.RuntimeException: java.lang.ClassCastException: com.mycom.admin.domain.User cannot be cast to com.mycom.admin.domain.User Cache Configuration @Configuration @EnableCaching @AutoConfigureAfter(value = { MetricsConfiguration.class, DatabaseConfiguration.class }) @Profile("!" + Constants.SPRING_PROFILE_FAST) public class MemcachedCacheConfiguration extends CachingConfigurerSupport { private final Logger log = LoggerFactory.getLogger

问题 Does anyone have good example of Spring Batch (Using Annotation) to cache a reference table which will be accessible to processor ? I just need a simple cache, run a query which returns some byte[] and keep it in memory till the time job is executing. Appreciate any help on this topic. Thanks ! 回答1: A JobExecutionListener can be used to populate the cache with reference data before the job is executed and clear the cache after the job is finished. Here is an example: import org

问题 I want to have multiple spring cache managers configured in my web-application and I would be able to use different cache manager at various places in my project. Is there any way to do this. 回答1: There are several ways you can do this and the right answer depends on your usage of the cache. You have a "main" cache manager If you use CacheManager A for 90% of your use case and B for 10% I'd advise to create a default CacheManager for A (you'll need to specify it via a CacheConfigurerSupport

问题 I am using Spring Cache, where I pass in a collection of keys, and the return is a list of entities. I would like to have the caching framework understand that each element in the return list is to be cached with the corresponding code. At the moment, it seems that the key is the whole list, and if I am missing a key in the subsequent call, it'll try to reload the whole collection again. @Override @Cacheable(value = "countries") public List<Country> getAll(List<String>codes) { return