Spring Boot + MybatisPlus开启二级缓存（注解形式）

MybatisPlus开启二级缓存

只需三步！请看下面。

1、启动类添加开启二级缓存注解(@EnableCaching)

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

@SpringBootApplication(exclude = {
    
     DataSourceAutoConfiguration.class })
@EnableCaching
public class AmsConfigApplication {
    
    
    public static void main(String[] args) {
    
    
        ConfigurableApplicationContext run = SpringApplication.run(AmsConfigApplication.class, args);
    }
}

2、application.yml开启二级缓存

#Mybatis-plus配置
mybatis-plus:
  configuration:
    cache-enabled: true #开启mybatis的二级缓存

3、mapper接口添加注解

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.CacheNamespace;

@Mapper
@CacheNamespace
public interface HisAlarmDao extends BaseMapper<HisAlarmEntity> {
    
    
}

---

注意：
开启缓存的mapper对应的实体类POJO要实现Serializable接口，不然后可能会报错。

@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class Category implements Serializable {
    
    

    /**
     * 分类id
     */
    @TableId(type = IdType.AUTO)
    private Integer id;

    /**
     * 分类名
     */
    private String categoryName;
}