SpringBoot中使用Cache提升接口性能详解( 二 ) _SpringBoot

文章插图
图片
这里必须要一样哦cacheKeyGenerator
缓存Key：JCacheKeyGenerator.java
public class JCacheKeyGenerator implements CacheKeyGenerator {private static final StringKEY_PREFIX = "storage_" ;@Overridepublic GeneratedCacheKey generateCacheKey(CacheKeyInvocationContext<? extends Annotation> cacheKeyInvocationContext) {CacheInvocationParameter[] params = cacheKeyInvocationContext.getAllParameters() ;StringBuilder sb = new StringBuilder() ;for (CacheInvocationParameter param : params) {if (param.getValue() instanceof Storage) {Storage s = (Storage) param.getValue() ;sb.append(s.getId()) ;} else {sb.append((Long)param.getValue()) ;}}return new StorageGeneratedCacheKey(KEY_PREFIX + sb.toString()) ;}private static class StorageGeneratedCacheKey implements GeneratedCacheKey {private static final long serialVersionUID = 1L;private String key ;public StorageGeneratedCacheKey(String key) {this.key = key ;}@Overridepublic int hashCode() {final int prime = 31;int result = 1;result = prime * result + ((key == null) ? 0 : key.hashCode());return result;}@Overridepublic boolean equals(Object obj) {if (this == obj)return true;if (obj == null)return false;if (getClass() != obj.getClass())return false;StorageGeneratedCacheKey other = (StorageGeneratedCacheKey) obj;if (key == null) {if (other.key != null)return false;} else if (!key.equals(other.key))return false;return true;}}}application.yml配置：
spring:cache:cacheNames:- cache_storageehcache:config: classpath:ehcache.xmlehcache.xml
<?xml versinotallow="1.0" encoding="UTF-8"?><ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd"updateCheck="false"><diskStore path="java.io.tmpdir/Tmp_EhCache"/><defaultCache eternal="false" maxElementsInMemory="10000"overflowToDisk="false" diskPersistent="false" timeToIdleSeconds="1800" timeToLiveSeconds="259200" memoryStoreEvictionPolicy="LRU" /><cache name="cache_storage" eternal="false" maxElementsInMemory="5000"overflowToDisk="false" diskPersistent="false" timeToIdleSeconds="1800" timeToLiveSeconds="1800" memoryStoreEvictionPolicy="LRU" /> </ehcache>测试增删改：
先添加个数据：