Springboot Cache @CacheEvict无法模糊删除怎么办

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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

    org.springframework.boot    spring-boot-starter-aop

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 deleteKeys = stringRedisTemplate.keys(key);            stringRedisTemplate.delete(deleteKeys);            logger.info("cache key: " + key + " deleted");        }    }     /**     * parseKey from SPEL     */    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.parse_Expression(key).getValue(context, String.class);    }}

Service中的调用代码

  /**     * Delete repository     *     * @param id repositoryId     */    @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，小编将为大家推送更多相关知识点的文章，欢迎关注！