1 . pom.xml添加相关依赖
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<parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.1.RELEASE</version></parent> <!-- 依赖 --> <dependencies> <!-- mybatis --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.2.0</version> </dependency> <!-- redis相关 --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> </dependency> <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-redis</artifactId> </dependency> <dependencies> |
2 . 配置Redis集群，参考spring-data-redis官方文档
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@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<String> nodes; /** * Get initial collection of known cluster nodes in format {@code host:port}. * * @return */ public List<String> getNodes() { return nodes; } public void setNodes(List<String> nodes) { this.nodes = nodes; }}@Configurationpublic class AppConfig { /** * Type safe representation of application.properties */ @Autowired ClusterConfigurationProperties clusterProperties; public @Bean RedisConnectionFactory connectionFactory() { return new JedisConnectionFactory( new RedisClusterConfiguration(clusterProperties.getNodes())); }} |
3 . 自定义二级缓存类
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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() { // 关键代码，data更新时清理缓存 RedisClusterConnection conn = redisConnectionFactory .getClusterConnection(); Set<byte[]> 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; }} |
使用一个Transfer类间接注入RedisConnectionFactory
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@Componentpublic class RedisCacheTransfer {@Autowiredpublic void setJedisConnectionFactory( RedisConnectionFactory jedisConnectionFactory) { RedisCache.setRedisConnectionFactory(jedisConnectionFactory);}} |
4 . 在application.propreties中开启二级缓存
开启mybatis的二级缓存
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spring.datasource.cachePrepStmts=true |
5 . 基于注解的使用
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@CacheNamespace(implementation = RedisCache.class)public interface ConfigDaoMapper { .....} |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：http://blog.csdn.net/soul_code/article/details/62422036?utm_source=tuicool&utm_medium=referral
