SpringBoot笔记系列：（二十四）集成EhCache缓存

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SpringBoot集成EhCache缓存以及EhCache缓存的使用

1. pom文件添加缓存jar包

   <!-- EhCache缓存jar包 -->
   <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-cache</artifactId>
   </dependency>

2. 新建ehcache.xml文件

   <?xml version="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" />
   
       <!-- 默认配置 -->
       <defaultCache maxElementsInMemory="5000" eternal="false"
                     timeToIdleSeconds="120" timeToLiveSeconds="120"
                     memoryStoreEvictionPolicy="LRU" overflowToDisk="false" />
   
       <cache name="baseCache" maxElementsInMemory="10000"
              maxElementsOnDisk="100000" />
   
   </ehcache>

3. 代码使用@CacheConfig和@Cacheable注解

   package top.pcstar.springbootmybatis.mapper;
   
   import org.apache.ibatis.annotations.Insert;
   import org.apache.ibatis.annotations.Param;
   import org.apache.ibatis.annotations.Select;
   import org.springframework.cache.annotation.CacheConfig;
   import org.springframework.cache.annotation.Cacheable;
   import org.springframework.stereotype.Repository;
   import top.pcstar.springbootmybatis.entity.Test;
   
   /**
    * @Author: PanChao
    * @Description:
    * @Date: Created in 16:31 2018/7/17
    */
   @Repository
   @CacheConfig(cacheNames = "baseCache")
   public interface TestMapper {
       @Cacheable
       @Select("SELECT * FROM TEST WHERE NAME = #{name}")
       Test findByName(@Param("name") String name);
   
       @Insert("INSERT INTO TEST(NAME, SEX) VALUES(#{name}, #{sex})")
       int insert(@Param("name") String name, @Param("sex") String sex);
   }
   

4. 清除缓存

   @Autowired
   private CacheManager cacheManager;
   @RequestMapping("/remoKey")
   public void remoKey() {
       cacheManager.getCache("baseCache").clear();
   }
   

5. 使用缓存

   @Autowired
   private CacheManager cacheManager;
   @RequestMapping("/getKey")
   public Test getKey() {
       Cache cache = cacheManager.getCache("baseCache");
       return (Test) cache.get("123").get();
   }

6. 启动加入缓存(使用@EnableCaching注解开启缓存)

   package top.pcstar.springbootmybatis;
   
   import org.mybatis.spring.annotation.MapperScan;
   import org.springframework.boot.SpringApplication;
   import org.springframework.boot.autoconfigure.SpringBootApplication;
   import org.springframework.cache.annotation.EnableCaching;
   
   @MapperScan("top.pcstar.springbootmybatis.mapper")
   @SpringBootApplication
       @EnableCaching // 开启缓存注解
   public class SpringbootMybatisApplication {
   
       public static void main(String[] args) {
           SpringApplication.run(SpringbootMybatisApplication.class, args);
       }
   }
   

SpringBoot笔记系列目录