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package cn.chnmuseum.party.conf;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import javax.annotation.Resource;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
@Configuration
@EnableCaching
public class RedisCacheConfig extends CachingConfigurerSupport {
/**
* 载入通过配置文件配置的连接工厂
*/
@Resource
private RedisConnectionFactory redisConnectionFactory;
@Bean
public RedisTemplate<String, Object> redisTemplate() {
RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
// 使用fastjson序列化
FastJson2RedisSerializer<Object> fastJsonRedisSerializer = new FastJson2RedisSerializer<>(Object.class);
// value值的序列化采用fastJsonRedisSerializer
//redisTemplate.setValueSerializer(fastJsonRedisSerializer);
redisTemplate.setHashValueSerializer(fastJsonRedisSerializer);
// key的序列化采用StringRedisSerializer
redisTemplate.setKeySerializer(new StringRedisSerializer());
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
/*StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
redisTemplate.setKeySerializer(stringRedisSerializer);
redisTemplate.setHashKeySerializer(stringRedisSerializer);
redisTemplate.setHashValueSerializer(stringRedisSerializer);*/
redisTemplate.setConnectionFactory(redisConnectionFactory);
redisTemplate.afterPropertiesSet();
return redisTemplate;
}
@Bean
@ConditionalOnMissingBean(StringRedisTemplate.class)
public StringRedisTemplate stringRedisTemplate(RedisConnectionFactory redisConnectionFactory) {
StringRedisTemplate template = new StringRedisTemplate();
template.setConnectionFactory(redisConnectionFactory);
return template;
}
@Bean
public CacheManager cacheManager(RedisConnectionFactory connectionFactory) {
return RedisCacheManager.builder(connectionFactory).build();
}
private static class FastJson2RedisSerializer<T> implements RedisSerializer<T> {
private static final Charset DEFAULT_CHARSET = StandardCharsets.UTF_8;
private final Class<T> clazz;
private FastJson2RedisSerializer(Class<T> clazz) {
this.clazz = clazz;
}
@Override
public byte[] serialize(T t) throws SerializationException {
return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
}
@Override
public T deserialize(byte[] bytes) throws SerializationException {
if (bytes.length <= 0) {
return null;
}
String str = new String(bytes, DEFAULT_CHARSET);
return JSON.parseObject(str, clazz);
}
}
}