springboot 基于redis实现 org.apache.ibatis.cache.Cache接口
时间: 2023-06-12 10:02:42 浏览: 131
可以通过结合 Spring Data Redis 和 MyBatis 框架来实现基于 Redis 的缓存,以实现 org.apache.ibatis.cache.Cache 接口。具体步骤如下:
1. 引入 spring-boot-starter-data-redis 和 mybatis-spring-boot-starter 依赖。
2. 配置 Redis 连接信息和 MyBatis 的配置信息。
3. 实现 org.apache.ibatis.cache.Cache 接口,可以创建一个 RedisCache 类来实现该接口。
4. 在 MyBatis 的配置文件中设置二级缓存的类型为 RedisCache。
示例代码:
1. 引入依赖:
```xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
</dependency>
```
2. 配置 Redis 和 MyBatis:
```yml
spring:
redis:
host: localhost
port: 6379
password: password
mybatis:
configuration:
cache-enabled: true
local-cache-scope: SESSION
lazy-loading-enabled: true
mapper-locations: classpath:mapper/*.xml
```
3. 实现 RedisCache:
```java
import org.apache.ibatis.cache.Cache;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import java.util.concurrent.TimeUnit;
public class RedisCache implements Cache {
private final String id;
private RedisTemplate<String, Object> redisTemplate;
public RedisCache(String id) {
if (id == null || "".equals(id)) {
throw new IllegalArgumentException("Cache instance requires an ID");
}
this.id = id;
}
@Override
public String getId() {
return this.id;
}
@Override
public void putObject(Object key, Object value) {
redisTemplate.opsForValue().set(key.toString(), value, 30, TimeUnit.MINUTES);
}
@Override
public Object getObject(Object key) {
return redisTemplate.opsForValue().get(key.toString());
}
@Override
public Object removeObject(Object key) {
redisTemplate.delete(key.toString());
return null;
}
@Override
public void clear() {
redisTemplate.execute(connection -> {
connection.flushDb();
return null;
}, true);
}
@Override
public int getSize() {
Long size = redisTemplate.execute(connection -> connection.dbSize(), true);
return size != null ? size.intValue() : 0;
}
@Override
public ReadWriteLock getReadWriteLock() {
return null;
}
public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) {
this.redisTemplate = redisTemplate;
this.redisTemplate.setKeySerializer(new StringRedisSerializer());
}
}
```
4. 在 MyBatis 的配置文件中设置二级缓存的类型为 RedisCache:
```xml
<configuration>
<settings>
<setting name="cacheEnabled" value="true"/>
<setting name="localCacheScope" value="SESSION"/>
<setting name="lazyLoadingEnabled" value="true"/>
</settings>
<typeAliases>
...
</typeAliases>
<mappers>
...
</mappers>
<cache type="com.example.cache.RedisCache">
<property name="redisTemplate" ref="redisTemplate"/>
</cache>
</configuration>
```
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