WebJun 12, 2024 · 今天生产环境遇到@Cacheable的一个问题，记录一下. 1、发现问题. 接口突然请求失败，查询日志发现有如下报错. Cache ‘cache:getCustRange’ does not allow ‘null’ values. Avoid storing null via … Web前言. 本文算是了解缓存注解原理的先行文章，因为它抽象出来的模块类比较多，所以做这篇文章进行关键类的打点。若我们需要扩展缓存注解的能力，对这些抽象是非常有必要深 …

Spring Cache缓存注解 - 成猿手册 - 博客园

WebApr 25, 2015 · 11. you could try to replace key with #p0. @Component public class DataService { @Cacheable (value="movieFindCache", key="#p0") public String findByDirector (String name) { return "hello"; } } reference from Spring Cache Abstraction VS interfaces VS key param ("Null key returned for cache operation" error) Share. … Web测试一下，可以发现。第一次和第二次（第二次参数和第一次不同）调用getByIsbn方法，会等待3秒，而后面四个调用，都会立即返回。. 常用注解. Spring Cache有几个常用注解，分别为@Cacheable、@CachePut … thiepval tower

spring cache - Null key returned for cache operation

WebApr 18, 2024 · How to create multiple cache key in @Cacheable when parameter value is null. I am trying to create a cache key with multiple parameter values. @Cacheable (cacheNames = "cache_name_", key = "#name + '_' + #id") private JSONObject getData (String name, String id) throws Exception {. From the above scenario, I name is a … WebAug 24, 2012 · @Cacheable(value="defaultCache", key="#pk", unless="#result == null") public Person findPerson(int pk) { return getSession.getPerson(pk); } I would imagine this condition arises from the use of pluggable cache implementations such as Ehcache … Web用Cacheable注解时，发现空值，也会被缓存下来。如果我们期望空值不被缓存,可以做如下设置: unless="#result == null" //当条件为true时，不保存对 sainsbury teddington