spring注解使用本地缓存Cache的Demo

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原创最新推荐文章于 2026-09-13 10:53:19 发布 985 阅读 AI 写同款· GEO 优化 ›

本地缓存——Caffeine Cache Caffeine是基于JDK8的高性能本地缓存库，提供了几乎完美的命中率。它有点类似JDK中的ConcurrentMap，实际上，Caffeine中的LocalCache接口就是实现了JDK中的ConcurrentMap接口，但两者并不完全一样。最大区别是caffeine有自动剔除策略，支持设置过期时间。阅读详情

第一步：导入必要的jar包

        <!--Ehcache-->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.21</version>
        </dependency>
        <dependency>
            <groupId>net.sf.ehcache</groupId>
            <artifactId>ehcache-core</artifactId>
            <version>2.6.6</version>
        </dependency>
        <dependency>
            <groupId>net.sf.ehcache</groupId>
            <artifactId>ehcache</artifactId>
            <version>2.8.3</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
        <dependency>
            <groupId>com.googlecode.ehcache-spring-annotations</groupId>
            <artifactId>ehcache-spring-annotations</artifactId>
            <version>1.2.0</version>
        </dependency>

第二步：加入ehcache.xml和ehcache.xsd俩个文件

ehcache.xml配置文件如下：

<?xml version="1.0" encoding="UTF-8"?>
    <ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:noNamespaceSchemaLocation="classpath:/ehcache.xsd" updateCheck="true" monitoring="autodetect"
             dynamicConfig="true">
        <diskStore path="java.io.tmpdir/" />
        <!--
            diskStore path:用来配置磁盘缓存使用的物理路径
            name:   缓存名称,cache的唯一标识(ehcache会把这个cache放到HashMap里)
            eternal="false"   元素是否永恒,如果是就永不过期(必须设置)
            maxElementsOnDisk====磁盘缓存中最多可以存放的元素数量,0表示无穷大
            maxElementsInMemory="1000" 内存缓存中最多可以存放的元素数量(必须设置)
            timeToIdleSeconds="0"   导致元素过期的访问间隔(秒为单位). 0表示可以永远空闲,默认为0
            timeToLiveSeconds="600" 元素在缓存里存在的时间(秒为单位). 0 表示永远存在不过期
            overflowToDisk="false"  当缓存达到maxElementsInMemory值是,是否允许溢出到磁盘(必须设置)
            diskPersistent="false"  磁盘缓存在VM重新启动时是否保持(默认为false)
            diskExpiryThreadIntervalSeconds="100" 磁盘失效线程运行时间间隔,默认是120秒
            memoryStoreEvictionPolicy="LFU" 内存存储与释放策略.当达到maxElementsInMemory时
                   共有三种策略,分别为LRU(最近最少使用,最久未使用算法，使用时间距离现在最久的那个被移除；)、LFU(最常用的,最近最少使用算法，一定时间段内使用次数（频率）最少的那个被移除)、FIFO(先进先出)默认使用"最近使用"策略
        -->
        <defaultCache
                eternal="false"
                maxElementsInMemory="3000"
                timeToIdleSeconds="3600"
                timeToLiveSeconds="0"
                overflowToDisk="true"
                diskPersistent="false"
                diskExpiryThreadIntervalSeconds="100"
                memoryStoreEvictionPolicy="LRU"/>

        <cache name="propConfigCache"
               eternal="false"
               maxElementsInMemory="3000"
               overflowToDisk="true"
               timeToIdleSeconds="0"
               timeToLiveSeconds="1440"
               memoryStoreEvictionPolicy="LFU"/>

        <cache name="workTimeCache"
               eternal="false"
               maxElementsInMemory="3000"
               overflowToDisk="true"
               timeToIdleSeconds="0"
               timeToLiveSeconds="1440"
               memoryStoreEvictionPolicy="LFU"/>

        <cache name="threeInOneCache"
               eternal="false"
               maxElementsInMemory="3000"
               overflowToDisk="true"
               timeToIdleSeconds="0"
               timeToLiveSeconds="1440"
               memoryStoreEvictionPolicy="LFU"/>

        <cache name="transferCache"
               eternal="false"
               maxElementsInMemory="1000"
               overflowToDisk="true"
               timeToIdleSeconds="0"
               timeToLiveSeconds="1440"
               memoryStoreEvictionPolicy="LFU"/>

        <cache name="threeInOneFavCache"
               eternal="false"
               maxElementsInMemory="3000"
               overflowToDisk="true"
               timeToIdleSeconds="0"
               timeToLiveSeconds="1440"
               memoryStoreEvictionPolicy="LFU"/>

        <cache name="reserveTimeCache"
               eternal="false"
               maxElementsInMemory="3000"
               overflowToDisk="true"
               timeToIdleSeconds="0"
               timeToLiveSeconds="1440"
               memoryStoreEvictionPolicy="LFU"/>

        <cache name="mqServerNameCache"
               eternal="false"
               maxElementsInMemory="3000"
               overflowToDisk="true"
               timeToIdleSeconds="0"
               timeToLiveSeconds="1440"
               memoryStoreEvictionPolicy="LFU"/>

ehcache.xsd配置文件如下所示：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" version="1.7">

    <xs:element name="ehcache">
        <xs:complexType>
            <xs:sequence>
                <xs:element maxOccurs="1" minOccurs="0" ref="diskStore"/>
                <xs:element maxOccurs="1" minOccurs="0" ref="sizeOfPolicy"/>
                <xs:element maxOccurs="1" minOccurs="0" ref="transactionManagerLookup"/>
                <xs:element maxOccurs="1" minOccurs="0" ref="cacheManagerEventListenerFactory"/>
                <xs:element maxOccurs="1" minOccurs="0" ref="managementRESTService"/>
                <xs:element maxOccurs="unbounded" minOccurs="0" ref="cacheManagerPeerProviderFactory"/>
                <xs:element maxOccurs="unbounded" minOccurs="0" ref="cacheManagerPeerListenerFactory"/>
                <xs:element maxOccurs="1" minOccurs="0" ref="terracottaConfig"/>
                <xs:element maxOccurs= "1" minOccurs="0" ref="defaultCache"/>
                <xs:element maxOccurs="unbounded" minOccurs="0" ref="cache"/>
            </xs:sequence>
            <xs:attribute name="name" use="optional"/>
            <xs:attribute default="true" name="updateCheck" type="xs:boolean" use="optional"/>
            <xs:attribute default="autodetect" name="monitoring" type="monitoringType" use="optional"/>
            <xs:attribute default="true" name="dynamicConfig" type="xs:boolean" use="optional"/>
            <xs:attribute default="15" name="defaultTransactionTimeoutInSeconds" type="xs:integer" use="optional"/>
            <xs:attribute default="0" name="maxBytesLocalHeap" type="memoryUnitOrPercentage" use="optional"/>
            <xs:attribute default="0" name="maxBytesLocalOffHeap" type="memoryUnit" use="optional"/>
            <xs:attribute default="0" name="maxBytesLocalDisk" type="memoryUnit" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="managementRESTService">
        <xs:complexType>
            <xs:attribute name="enabled" type="xs:boolean" use="optional"/>
            <xs:attribute name="bind" use="optional"/>
            <xs:attribute name="securityServiceLocation" use="optional"/>
            <xs:attribute name="securityServiceTimeout" use="optional" type="xs:integer"/>
            <xs:attribute name="sslEnabled" use="optional" type="xs:boolean"/>
            <xs:attribute name="needClientAuth" use="optional" type="xs:boolean"/>
            <xs:attribute name="sampleHistorySize" use="optional" type="xs:integer"/>
            <xs:attribute name="sampleIntervalSeconds" use="optional" type="xs:integer"/>
            <xs:attribute name="sampleSearchIntervalSeconds" use="optional" type="xs:integer"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="diskStore">
        <xs:complexType>
            <xs:attribute name="path" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="transactionManagerLookup">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="cacheManagerEventListenerFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="cacheManagerPeerProviderFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="cacheManagerPeerListenerFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="terracottaConfig">
        <xs:complexType>
            <xs:sequence>
                <xs:element maxOccurs="1" minOccurs="0" name="tc-config">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:any maxOccurs="unbounded" minOccurs="0" processContents="skip"/>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
            </xs:sequence>
            <xs:attribute default="localhost:9510" name="url" use="optional"/>
            <xs:attribute name="rejoin" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="wanEnabledTSA" type="xs:boolean" use="optional" default="false"/>
        </xs:complexType>
    </xs:element>
    <!-- add clone support for addition of cacheExceptionHandler. Important! -->
    <xs:element name="defaultCache">
        <xs:complexType>
            <xs:sequence>
                <xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheEventListenerFactory"/>
                <xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheExtensionFactory"/>
                <xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheLoaderFactory"/>
                <xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheDecoratorFactory"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="bootstrapCacheLoaderFactory"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="cacheExceptionHandlerFactory"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="pinning"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="terracotta"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="cacheWriter"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="copyStrategy"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="elementValueComparator"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="sizeOfPolicy"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="persistence"/>
            </xs:sequence>
            <xs:attribute name="diskExpiryThreadIntervalSeconds" type="xs:integer" use="optional"/>
            <xs:attribute name="diskSpoolBufferSizeMB" type="xs:integer" use="optional"/>
            <xs:attribute name="diskPersistent" type="xs:boolean" use="optional"/>
            <xs:attribute name="diskAccessStripes" type="xs:integer" use="optional" default="1"/>
            <xs:attribute name="eternal" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="maxElementsInMemory" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="maxEntriesLocalHeap" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="clearOnFlush" type="xs:boolean" use="optional"/>
            <xs:attribute name="memoryStoreEvictionPolicy" type="xs:string" use="optional"/>
            <xs:attribute name="overflowToDisk" type="xs:boolean" use="optional"/>
            <xs:attribute name="timeToIdleSeconds" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="timeToLiveSeconds" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="maxElementsOnDisk" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="maxEntriesLocalDisk" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="transactionalMode" type="transactionalMode" use="optional" default="off"/>
            <xs:attribute name="statistics" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="copyOnRead" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="copyOnWrite" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="cacheLoaderTimeoutMillis" type="xs:integer" use="optional" default="0"/>
            <xs:attribute name="overflowToOffHeap" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="maxMemoryOffHeap" type="xs:string" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="cache">
        <xs:complexType>
            <xs:sequence>
                <xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheEventListenerFactory"/>
                <xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheExtensionFactory"/>
                <xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheLoaderFactory"/>
                <xs:element minOccurs="0" maxOccurs="unbounded" ref="cacheDecoratorFactory"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="bootstrapCacheLoaderFactory"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="cacheExceptionHandlerFactory"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="pinning"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="terracotta"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="cacheWriter"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="copyStrategy"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="searchable"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="elementValueComparator"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="sizeOfPolicy"/>
                <xs:element minOccurs="0" maxOccurs="1" ref="persistence"/>
            </xs:sequence>
            <xs:attribute name="diskExpiryThreadIntervalSeconds" type="xs:integer" use="optional"/>
            <xs:attribute name="diskSpoolBufferSizeMB" type="xs:integer" use="optional"/>
            <xs:attribute name="diskPersistent" type="xs:boolean" use="optional"/>
            <xs:attribute name="diskAccessStripes" type="xs:integer" use="optional" default="1"/>
            <xs:attribute name="eternal" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="maxElementsInMemory" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="maxEntriesLocalHeap" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="memoryStoreEvictionPolicy" type="xs:string" use="optional"/>
            <xs:attribute name="clearOnFlush" type="xs:boolean" use="optional"/>
            <xs:attribute name="name" type="xs:string" use="required"/>
            <xs:attribute name="overflowToDisk" type="xs:boolean" use="optional"/>
            <xs:attribute name="timeToIdleSeconds" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="timeToLiveSeconds" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="maxElementsOnDisk" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="maxEntriesLocalDisk" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="maxEntriesInCache" type="xs:nonNegativeInteger" use="optional"/>
            <xs:attribute name="transactionalMode" type="transactionalMode" use="optional" default="off" />
            <xs:attribute name="statistics" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="copyOnRead" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="copyOnWrite" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="logging" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="cacheLoaderTimeoutMillis" type="xs:integer" use="optional" default="0"/>
            <xs:attribute name="overflowToOffHeap" type="xs:boolean" use="optional" default="false"/>
            <xs:attribute name="maxMemoryOffHeap" type="xs:string" use="optional"/>
            <xs:attribute default="0" name="maxBytesLocalHeap" type="memoryUnitOrPercentage" use="optional"/>
            <xs:attribute default="0" name="maxBytesLocalOffHeap" type="memoryUnitOrPercentage" use="optional"/>
            <xs:attribute default="0" name="maxBytesLocalDisk" type="memoryUnitOrPercentage" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="cacheEventListenerFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
            <xs:attribute name="listenFor" use="optional" type="notificationScope" default="all"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="bootstrapCacheLoaderFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="cacheExtensionFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="cacheExceptionHandlerFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="cacheLoaderFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="cacheDecoratorFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="searchAttribute">
        <xs:complexType>
        	<xs:attribute name="name" use="required" type="xs:string" />
        	<xs:attribute name="expression" type="xs:string" />
        	<xs:attribute name="class" type="xs:string" />
        	<xs:attribute name="type" type="xs:string" use="optional"/>
        	<xs:attribute name="properties" use="optional" />
        	<xs:attribute name="propertySeparator" use="optional" />
        </xs:complexType>
    </xs:element>

    <xs:element name="searchable">
      <xs:complexType>
        <xs:sequence>
          <xs:element minOccurs="0" maxOccurs="unbounded" ref="searchAttribute"/>
        </xs:sequence>
        <xs:attribute name="keys" use="optional" type="xs:boolean" default="true"/>
        <xs:attribute name="values" use="optional" type="xs:boolean" default="true"/>
        <xs:attribute name="allowDynamicIndexing" use="optional" type="xs:boolean" default="false"/>
      </xs:complexType>
    </xs:element>

    <xs:element name="pinning">
        <xs:complexType>
            <xs:attribute name="store" use="required" type="pinningStoreType"/>
        </xs:complexType>
    </xs:element>

    <xs:element name="terracotta">
        <xs:complexType>
            <xs:sequence>
                <xs:element minOccurs="0" maxOccurs="1" ref="nonstop"/>
            </xs:sequence>
            <xs:attribute name="clustered" use="optional" type="xs:boolean" default="true"/>
            <xs:attribute name="coherentReads" use="optional" type="xs:boolean" default="true"/>
            <xs:attribute name="localKeyCache" use="optional" type="xs:boolean" default="false"/>
            <xs:attribute name="localKeyCacheSize" use="optional" type="xs:positiveInteger" default="300000"/>
            <xs:attribute name="orphanEviction" use="optional" type="xs:boolean" default="true"/>
            <xs:attribute name="orphanEvictionPeriod" use="optional" type="xs:positiveInteger" default="4"/>
            <xs:attribute name="copyOnRead" use="optional" type="xs:boolean" default="false"/>
            <xs:attribute name="coherent" use="optional" type="xs:boolean" default="false"/>
            <xs:attribute name="consistency" use="optional" type="consistencyType" default="eventual"/>
            <xs:attribute name="synchronousWrites" use="optional" type="xs:boolean" default="false"/>
            <xs:attribute name="concurrency" use="optional" type="xs:nonNegativeInteger" default="0"/>
            <xs:attribute name="localCacheEnabled" use="optional" type="xs:boolean" default="true"/>
            <xs:attribute name="compressionEnabled" use="optional" type="xs:boolean" default="false"/>
        </xs:complexType>
    </xs:element>
    <xs:simpleType name="consistencyType">
        <xs:restriction base="xs:string">
            <xs:enumeration value="strong" />
            <xs:enumeration value="eventual" />
        </xs:restriction>
    </xs:simpleType>
    <xs:element name="nonstop">
        <xs:complexType>
            <xs:sequence>
                <xs:element minOccurs="0" maxOccurs="1" ref="timeoutBehavior"/>
            </xs:sequence>
            <xs:attribute name="enabled" use="optional" type="xs:boolean" default="true"/>
            <xs:attribute name="immediateTimeout" use="optional" type="xs:boolean" default="false"/>
            <xs:attribute name="timeoutMillis" use="optional" type="xs:positiveInteger" default="30000"/>
            <xs:attribute name="searchTimeoutMillis" use="optional" type="xs:positiveInteger" default="30000"/>
        </xs:complexType>
    </xs:element>
    <xs:element name="timeoutBehavior">
        <xs:complexType>
            <xs:attribute name="type" use="optional" type="timeoutBehaviorType" default="exception"/>
            <xs:attribute name="properties" use="optional" default=""/>
            <xs:attribute name="propertySeparator" use="optional" default=","/>
        </xs:complexType>
    </xs:element>
    <xs:simpleType name="timeoutBehaviorType">
        <xs:restriction base="xs:string">
            <xs:enumeration value="noop" />
            <xs:enumeration value="exception" />
            <xs:enumeration value="localReads" />
            <xs:enumeration value="localReadsAndExceptionOnWrite" />
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="monitoringType">
        <xs:restriction base="xs:string">
            <xs:enumeration value="autodetect"/>
            <xs:enumeration value="on"/>
            <xs:enumeration value="off"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="pinningStoreType">
        <xs:restriction base="xs:string">
            <xs:enumeration value="localMemory" />
            <xs:enumeration value="inCache" />
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="terracottaCacheValueType">
        <xs:restriction base="xs:string">
            <xs:enumeration value="serialization" />
            <xs:enumeration value="identity" />
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="transactionalMode">
        <xs:restriction base="xs:string">
            <xs:enumeration value="off"/>
            <xs:enumeration value="xa_strict"/>
            <xs:enumeration value="xa"/>
            <xs:enumeration value="local"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:element name="cacheWriter">
        <xs:complexType>
            <xs:sequence >
                <xs:element minOccurs="0" maxOccurs="1" ref="cacheWriterFactory"/>
            </xs:sequence>
            <xs:attribute name="writeMode" use="optional" type="writeModeType" default="write-through"/>
            <xs:attribute name="notifyListenersOnException" use="optional" type="xs:boolean" default="false"/>
            <xs:attribute name="minWriteDelay" use="optional" type="xs:nonNegativeInteger" default="1"/>
            <xs:attribute name="maxWriteDelay" use="optional" type="xs:nonNegativeInteger" default="1"/>
            <xs:attribute name="rateLimitPerSecond" use="optional" type="xs:nonNegativeInteger" default="0"/>
            <xs:attribute name="writeCoalescing" use="optional" type="xs:boolean" default="false"/>
            <xs:attribute name="writeBatching" use="optional" type="xs:boolean" default="false"/>
            <xs:attribute name="writeBatchSize" use="optional" type="xs:positiveInteger" default="1"/>
            <xs:attribute name="retryAttempts" use="optional" type="xs:nonNegativeInteger" default="0"/>
            <xs:attribute name="retryAttemptDelaySeconds" use="optional" type="xs:nonNegativeInteger" default="1"/>
            <xs:attribute name="writeBehindConcurrency" use="optional" type="xs:nonNegativeInteger" default="1"/>
            <xs:attribute name="writeBehindMaxQueueSize" use="optional" type="xs:nonNegativeInteger" default="0"/>
        </xs:complexType>
    </xs:element>
    <xs:simpleType name="writeModeType">
        <xs:restriction base="xs:string">
            <xs:enumeration value="write-through" />
            <xs:enumeration value="write-behind" />
        </xs:restriction>
    </xs:simpleType>
    <xs:element name="cacheWriterFactory">
        <xs:complexType>
            <xs:attribute name="class" use="required"/>
            <xs:attribute name="properties" use="optional"/>
            <xs:attribute name="propertySeparator" use="optional"/>
        </xs:complexType>
    </xs:element>

    <xs:element name="copyStrategy">
        <xs:complexType>
            <xs:attribute name="class" use="required" type="xs:string" />
        </xs:complexType>
    </xs:element>

    <xs:element name="elementValueComparator">
        <xs:complexType>
            <xs:attribute name="class" use="required" type="xs:string" />
        </xs:complexType>
    </xs:element>

    <xs:element name="sizeOfPolicy">
        <xs:complexType>
            <xs:attribute name="maxDepth" use="required" type="xs:integer" />
            <xs:attribute name="maxDepthExceededBehavior" use="optional" default="continue" type="maxDepthExceededBehavior" />
        </xs:complexType>
    </xs:element>

	<xs:element name="persistence">
	    <xs:complexType>
            <xs:attribute name="strategy" use="required" type="persistenceStrategy"/>
            <xs:attribute name="synchronousWrites" use="optional" default="false" type="xs:boolean"/>
	    </xs:complexType>
	</xs:element>
	
	<xs:simpleType name="persistenceStrategy">
	    <xs:restriction base="xs:string">
	        <xs:enumeration value="localTempSwap"/>
	        <xs:enumeration value="localRestartable"/>
	        <xs:enumeration value="none"/>
	        <xs:enumeration value="distributed"/>
	    </xs:restriction>
	</xs:simpleType>
	
    <xs:simpleType name="maxDepthExceededBehavior">
        <xs:restriction base="xs:string">
            <xs:enumeration value="continue"/>
            <xs:enumeration value="abort"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="notificationScope">
        <xs:restriction base="xs:string">
            <xs:enumeration value="local"/>
            <xs:enumeration value="remote"/>
            <xs:enumeration value="all"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="memoryUnit">
        <xs:restriction base="xs:token">
            <xs:pattern value="[0-9]+[bBkKmMgG]?"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:simpleType name="memoryUnitOrPercentage">
        <xs:restriction base="xs:token">
            <xs:pattern value="([0-9]+[bBkKmMgG]?|100%|[0-9]{1,2}%)"/>
        </xs:restriction>
    </xs:simpleType>
</xs:schema>

第三步：在##-servlet.xml中加入如下的配置：

    <!-- 启用缓存注解功能，这个是必须的，否则注解不会生效，另外，该注解一定要声明在spring主配置文件中才会生效 -->
    <cache:annotation-driven cache-manager="cacheManager"/>
    <!-- cacheManager工厂类，指定ehcache.xml的位置 -->
    <bean id="cacheManagerFactory" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
        <property name="configLocation"  value="classpath:config/ehcache.xml"/>
    </bean>

    <!-- 声明cacheManager -->
    <bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheCacheManager">
        <property name="cacheManager" ref="cacheManagerFactory"/>
    </bean>

第四步：在需要加入缓存的方法上面加上注解

@Cacheable(value = "propConfigCache",key = "#dateStr+'skynet'")

Spring Boot Redis Cache 原理与生产避坑指南缓存是提升系统性能的关键技术，其本质是在一致性、吞吐量与资源成本间动态权衡。Spring Cache 提供统一抽象层，Redis 作为物理存储载体，二者通过 CacheManager、Cache 和 RedisCacheWriter 构成完整链路：从 @Cacheable 声明意图，到 RedisTemplate 执行 SETEX 命令，再到序列化策略影响数据可读性与兼容性。理解 TTL 配置、Key/Value 序列化机制、null 值处理及并发控制逻辑，是解决缓存穿透、击穿、雪崩等高频问题的技术基础。本阅读详情

spring注解使用本地缓存Cache的Demo

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