這篇文章給大家介紹Spring boot中mybatis的二級緩存怎么使用redis集群進(jìn)行替換，內(nèi)容非常詳細(xì)，感興趣的小伙伴們可以參考借鑒，希望對大家能有所幫助。
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1 . pom.xml添加相關(guān)依賴
org.springframework.boot spring-boot-starter-parent 1.5.1.RELEASE org.mybatis.spring.boot mybatis-spring-boot-starter 1.2.0 redis.clients jedis org.springframework.data spring-data-redis
2 . 配置Redis集群，參考spring-data-redis官方文檔
重慶分公司
重慶分公司
@Component
@ConfigurationProperties(prefix = "spring.redis.cluster")
public class ClusterConfigurationProperties {
/*
* spring.redis.cluster.nodes[0] = 127.0.0.1:7379
* spring.redis.cluster.nodes[1] = 127.0.0.1:7380
* ...
*/
List nodes;
/**
* Get initial collection of known cluster nodes in format {@code host:port}.
*
* @return
*/
public List getNodes() {
return nodes;
}
public void setNodes(List nodes) {
this.nodes = nodes;
}
}
@Configuration
public class AppConfig {
/**
* Type safe representation of application.properties
*/
@Autowired ClusterConfigurationProperties clusterProperties;
public @Bean RedisConnectionFactory connectionFactory() {
return new JedisConnectionFactory(
new RedisClusterConfiguration(clusterProperties.getNodes()));
}
} 3 . 自定義二級緩存類
public class RedisCache implements Cache {
private static final String PREFIX = "SYS_CONFIG:";
private final ReadWriteLock readWriteLock = new ReentrantReadWriteLock(true);
private String id;
private JdkSerializationRedisSerializer jdkSerializer = new JdkSerializationRedisSerializer();
private static RedisConnectionFactory redisConnectionFactory;
public RedisCache(final String id) {
if (id == null) {
throw new IllegalArgumentException("Cache instances require an ID");
}
this.id = id;
}
@Override
public String getId() {
return this.id;
}
@Override
public void putObject(Object key, Object value) {
RedisClusterConnection conn = redisConnectionFactory
.getClusterConnection();
if (key == null)
return;
String strKey = PREFIX + key.toString();
conn.set(strKey.getBytes(), jdkSerializer.serialize(value));
conn.close();
}
@Override
public Object getObject(Object key) {
if (key != null) {
String strKey = PREFIX + key.toString();
RedisClusterConnection conn = redisConnectionFactory
.getClusterConnection();
byte[] bs = conn.get(strKey.getBytes());
conn.close();
return jdkSerializer.deserialize(bs);
}
return null;
}
@Override
public Object removeObject(Object key) {
if (key != null) {
RedisClusterConnection conn = redisConnectionFactory
.getClusterConnection();
conn.del(key.toString().getBytes());
conn.close();
}
return null;
}
@Override
public void clear() {
// 關(guān)鍵代碼，data更新時清理緩存
RedisClusterConnection conn = redisConnectionFactory
.getClusterConnection();
Set keys = conn.keys((PREFIX+"*").getBytes());
for (byte[] bs : keys) {
conn.del(bs);
}
conn.close();
}
@Override
public int getSize() {
// TODO Auto-generated method stub
return 0;
}
@Override
public ReadWriteLock getReadWriteLock() {
return this.readWriteLock;
}
public static void setRedisConnectionFactory(RedisConnectionFactory redisConnectionFactory) {
RedisCache.redisConnectionFactory = redisConnectionFactory;
}
} 使用一個Transfer類間接注入RedisConnectionFactory
@Component
public class RedisCacheTransfer {
@Autowired
public void setJedisConnectionFactory(
RedisConnectionFactory jedisConnectionFactory) {
RedisCache.setRedisConnectionFactory(jedisConnectionFactory);
}
}4 . 在application.propreties中開啟二級緩存
開啟mybatis的二級緩存
spring.datasource.cachePrepStmts=true
5 . 基于注解的使用
@CacheNamespace(implementation = RedisCache.class)
public interface ConfigDaoMapper {
.....
}關(guān)于Spring boot中mybatis的二級緩存怎么使用Redis集群進(jìn)行替換就分享到這里了，希望以上內(nèi)容可以對大家有一定的幫助，可以學(xué)到更多知識。如果覺得文章不錯，可以把它分享出去讓更多的人看到。
