SpringBoot 集成ehcache

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.RELEASE</version>
    </parent>
    <dependencies>
        <!-- SpringBoot 对lombok 支持 -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <!-- SpringBoot web 核心组件 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
        </dependency>
        <!-- SpringBoot 外部tomcat支持 -->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
        </dependency>
        <!-- springboot-log4j -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j</artifactId>
            <version>1.3.8.RELEASE</version>
        </dependency>
        <!-- springboot-aop 技术 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/commons-lang/commons-lang -->
        <dependency>
            <groupId>commons-lang</groupId>
            <artifactId>commons-lang</artifactId>
            <version>2.6</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.47</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>
        <!--开启 cache 缓存 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-cache</artifactId>
        </dependency>
        <!-- ehcache缓存 -->
        <dependency>
            <groupId>net.sf.ehcache</groupId>
            <artifactId>ehcache</artifactId>
            <version>2.9.1</version><!--$NO-MVN-MAN-VER$ -->
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.1.1</version>
        </dependency>
        <!-- mysql 依赖 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
    </dependencies>
  

package com.aiyuesheng.mapper;

import org.springframework.cache.annotation.CacheConfig;
import org.springframework.cache.annotation.Cacheable;

import com.aiyuesheng.entity.User;

@CacheConfig(cacheNames = "userCache")
public interface UserMapperdb {

    void insertUser(User user);

    @Cacheable
    User selectUserById(int id);

}

@EnableCaching
@MapperScan("com.aiyuesheng.mapper")
@SpringBootApplication
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class, args);
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd">
    <!-- 指定一个文件目录，当EhCache把数据写到硬盘上时，将把数据写到这个文件目录下 -->
    <diskStore path="java.io.tmpdir" />

    <!-- userCache缓存 -->
    <cache name="userCache" maxElementsInMemory="1000" eternal="false"
        timeToIdleSeconds="120" timeToLiveSeconds="120" overflowToDisk="true"
        diskSpoolBufferSizeMB="30" maxElementsOnDisk="10000000"
        diskPersistent="false" diskExpiryThreadIntervalSeconds="120"
        memoryStoreEvictionPolicy="LRU">
    </cache>
</ehcache>

#单数据源
spring:
   datasource:
     url: jdbc:mysql://127.0.0.1:3306/testdb
     username: root
     password: 123456
     driver-class-name: com.mysql.jdbc.Driver
     
mybatis:
  mapper-locations: classpath:com/aiyuesheng/mapping/*Mapper.xml
  type-aliases-package: com.aiyuesheng.entity
  
# 缓存配置读取
cache:
  type: ehcache
  ehcache: 
     config: classpath:ehcache.xml

   
 <diskStore path="java.io.tmpdir" />  指定数据(.data and .index)存储位置，可指定磁盘中的文件夹位置期

 <cache name="userCache"  Cache的名称，必须是唯一的(ehcache会把这个cache放到HashMap里)。

    maxElementsInMemory="1000"  在内存中缓存的element的最大数目

    eternal="false"  设定缓存的elements是否永远不过期。如果为true，则缓存的数据始终有效，如果为false那么还要根据timeToIdleSeconds，timeToLiveSeconds判断。

    timeToIdleSeconds="120" timeToLiveSeconds="120" 

    overflowToDisk="true" 如果内存中数据超过内存限制，是否要缓存到磁盘上。

    diskSpoolBufferSizeMB="30" maxElementsOnDisk="10000000"
       
    diskPersistent="false"  否在磁盘上持久化。指重启jvm后，数据是否有效。默认为false。

    diskExpiryThreadIntervalSeconds="120" 对象检测线程运行时间间隔。标识对象状态的线程多长时间运行一次。
       
    memoryStoreEvictionPolicy="LRU"> 缓存策略。默认值LRU，可选FIFO、LFU。