这篇文章主要讲解了“Springboot Cache @CacheEvict无法模糊删除怎么办”，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习“Springboot Cache @CacheEvict无法模糊删除怎么办”吧！
SpringbootCache @CacheEvict 无法模糊删除
用@CacheEvict删除缓存只能删除指定key的缓存，有些情况需要根据前缀删除所有key的时候，用@CacheEvict就做不到了，所以我们自定义一个@CacheRemove来处理根据前缀模糊删除所有cache（支持Spring EL表达式）
以下代码适用于Redis
添加依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-aop</artifactId></dependency>启动类加上 @EnableAspectJAutoProxy
@CacheRemove 代码
package com.marssvn.utils.annotation.cache; import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target; import static java.lang.annotation.ElementType.METHOD; @Target({METHOD})@Retention(RetentionPolicy.RUNTIME)public @interface CacheRemove { String[] value() default {};}CacheRemoveAspect AOP实现类代码
package com.marssvn.utils.annotation.cache.aspect; import com.marssvn.utils.annotation.cache.CacheRemove;import org.aspectj.lang.JoinPoint;import org.aspectj.lang.annotation.AfterReturning;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.reflect.MethodSignature;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.core.LocalVariableTableParameterNameDiscoverer;import org.springframework.data.redis.core.StringRedisTemplate;import org.springframework.expression.ExpressionParser;import org.springframework.expression.spel.standard.SpelExpressionParser;import org.springframework.expression.spel.support.StandardEvaluationContext;import org.springframework.stereotype.Component; import javax.annotation.Resource;import java.lang.reflect.Method;import java.util.Set; @Aspect@Componentpublic class CacheRemoveAspect { @Resource private StringRedisTemplate stringRedisTemplate; private Logger logger = LoggerFactory.getLogger(this.getClass()); @AfterReturning("@annotation(com.marssvn.utils.annotation.cache.CacheRemove)") public void remove(JoinPoint point) { Method method = ((MethodSignature) point.getSignature()).getMethod(); CacheRemove cacheRemove = method.getAnnotation(CacheRemove.class); String[] keys = cacheRemove.value(); for (String key : keys) { if (key.contains("#")) key = parseKey(key, method, point.getArgs()); Set<String> deleteKeys = stringRedisTemplate.keys(key); stringRedisTemplate.delete(deleteKeys); logger.info("cache key: " + key + " deleted"); } } private String parseKey(String key, Method method, Object [] args){ LocalVariableTableParameterNameDiscoverer u = new LocalVariableTableParameterNameDiscoverer(); String[] paraNameArr = u.getParameterNames(method); ExpressionParser parser = new SpelExpressionParser(); StandardEvaluationContext context = new StandardEvaluationContext(); for (int i = 0; i < paraNameArr.length; i++) { context.setVariable(paraNameArr[i], args[i]); } return parser.parseExpression(key).getValue(context, String.class); }}Service中的调用代码
@Override @Transactional @CacheRemove({"repository.list::*", "'repository::id=' + #id", "'repository.tree::id=' + #id + '*'"}) public void deleteRepositoryById(int id) { // business code }@CacheEvict根据缓存名称模糊删除
@CacheEvict(cacheNames = "likename" ,allEntries=true)allEntries=true开启全匹配cacheNames填写 模糊删除的name
看源码可知
感谢各位的阅读，以上就是“Springboot Cache @CacheEvict无法模糊删除怎么办”的内容了，经过本文的学习后，相信大家对Springboot Cache @CacheEvict无法模糊删除怎么办这一问题有了更深刻的体会，具体使用情况还需要大家实践验证。这里是编程网，小编将为大家推送更多相关知识点的文章，欢迎关注！
