使用ehcache三步搞定springboot缓存的方法示例

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <parent>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-parent</artifactId>
 <version>2.1.3.RELEASE</version>
 <relativePath/> <!-- lookup parent from repository -->
 </parent>
 <groupId>com.ramostear</groupId>
 <artifactId>cache</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <name>cache</name>
 <description>Demo project for Spring Boot</description>

 <properties>
 <java.version>1.8</java.version>
 </properties>

 <dependencies>
 <dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-cache</artifactId>
 </dependency>
 <dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
 </dependency>
 <dependency>
  <groupId>org.ehcache</groupId>
  <artifactId>ehcache</artifactId>
 </dependency>
 <dependency>
  <groupId>javax.cache</groupId>
  <artifactId>cache-api</artifactId>
 </dependency>
 <dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-test</artifactId>
  <scope>test</scope>
 </dependency>
 <dependency>
  <groupId>org.projectlombok</groupId>
  <artifactId>lombok</artifactId>
 </dependency>
 </dependencies>

 <build>
 <plugins>
  <plugin>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-maven-plugin</artifactId>
  </plugin>
 </plugins>
 </build>

</project>

spring.cache.jcache.config=classpath:ehcache.xml

package com.ramostear.cache;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;

@SpringBootApplication
@EnableCaching
public class CacheApplication {

 public static void main(String[] args) {
 SpringApplication.run(CacheApplication.class, args);
 }
}

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://www.ehcache.org/v3"
    xmlns:jsr107="http://www.ehcache.org/v3/jsr107"
    xsi:schemaLocation="
      http://www.ehcache.org/v3 http://www.ehcache.org/schema/ehcache-core-3.0.xsd
      http://www.ehcache.org/v3/jsr107 http://www.ehcache.org/schema/ehcache-107-ext-3.0.xsd">
  <service>
    <jsr107:defaults enable-statistics="true"/>
  </service>

  <cache alias="person">
    <key-type>java.lang.Long</key-type>
    <value-type>com.ramostear.cache.entity.Person</value-type>
    <expiry>
      <ttl unit="minutes">1</ttl>
    </expiry>
    <listeners>
      <listener>
        <class>com.ramostear.cache.config.PersonCacheEventLogger</class>
        <event-firing-mode>ASYNCHRONOUS</event-firing-mode>
        <event-ordering-mode>UNORDERED</event-ordering-mode>
        <events-to-fire-on>CREATED</events-to-fire-on>
        <events-to-fire-on>UPDATED</events-to-fire-on>
        <events-to-fire-on>EXPIRED</events-to-fire-on>
        <events-to-fire-on>REMOVED</events-to-fire-on>
        <events-to-fire-on>EVICTED</events-to-fire-on>
      </listener>
    </listeners>
    <resources>
        <heap unit="entries">2000</heap>
        <offheap unit="MB">100</offheap>
    </resources>
  </cache>
</config>

package com.ramostear.cache.config;

import org.ehcache.event.CacheEvent;
import org.ehcache.event.CacheEventListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author ramostear
 * @create-time 2019/4/7 0007-0:48
 * @modify by :
 * @since:
 */
public class PersonCacheEventLogger implements CacheEventListener<Object,Object>{

  private static final Logger logger = LoggerFactory.getLogger(PersonCacheEventLogger.class);

  @Override
  public void onEvent(CacheEvent cacheEvent) {
    logger.info("person caching event {} {} {} {}",
        cacheEvent.getType(),
        cacheEvent.getKey(),
        cacheEvent.getOldValue(),
        cacheEvent.getNewValue());
  }
}

package com.ramostear.cache.service;

import com.ramostear.cache.entity.Person;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;

/**
 * @author ramostear
 * @create-time 2019/4/7 0007-0:51
 * @modify by :
 * @since:
 */
@Service(value = "personService")
public class PersonService {

  @Cacheable(cacheNames = "person",key = "#id")
  public Person getPerson(Long id){
    Person person = new Person(id,"ramostear","ramostear@163.com");
    return person;
  }
}

package com.ramostear.cache.controller;

import com.ramostear.cache.entity.Person;
import com.ramostear.cache.service.PersonService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


/**
 * @author ramostear
 * @create-time 2019/4/7 0007-0:54
 * @modify by :
 * @since:
 */
@RestController
@RequestMapping("/persons")
public class PersonController {

  @Autowired
  private PersonService personService;

  @GetMapping("/{id}")
  public ResponseEntity<Person> person(@PathVariable(value = "id") Long id){
    return new ResponseEntity<>(personService.getPerson(id), HttpStatus.OK);
  }
}

package com.ramostear.cache.entity;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;

import java.io.Serializable;

/**
 * @author ramostear
 * @create-time 2019/4/7 0007-0:45
 * @modify by :
 * @since:
 */
@Getter
@Setter
@AllArgsConstructor
@NoArgsConstructor
public class Person implements Serializable{

  private Long id;

  private String username;

  private String email;
}