实测使用Fastjson序列化会快一点
- 依赖
<!-- spring data redis 依赖 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<!-- commons-pool2 对象池依赖 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
</dependency>
<!-- JSON工具 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.76</version>
</dependency>
- 实现RedisSerializer接口
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.parser.ParserConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
public class FastJson2JsonRedisSerializer<T> implements RedisSerializer<T> {
public static final Charset DEFAULT_CHARSET = StandardCharsets.UTF_8;
static {
ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
}
private final Class<T> clazz;
public FastJson2JsonRedisSerializer(Class<T> clazz) {
super();
this.clazz = clazz;
}
/**
* 序列化
*/
@Override
public byte[] serialize(T t) throws SerializationException {
if (null == t) {
return new byte[0];
}
return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
}
/**
* 反序列化
*/
@Override
public T deserialize(byte[] bytes) throws SerializationException {
if (null == bytes || bytes.length <= 0) {
return null;
}
String str = new String(bytes, DEFAULT_CHARSET);
return (T) JSON.parseObject(str, clazz);
}
}
- 配置redisTemplate
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.data.redis.RedisAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;
@Configuration
@AutoConfigureAfter(RedisAutoConfiguration.class)
public class RedisCacheAutoConfiguration {
@Bean
public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory factory) {
RedisTemplate<Object, Object> template = new RedisTemplate<>();
template.setConnectionFactory(factory);
FastJson2JsonRedisSerializer<Object> fastJsonRedisSerializer = new FastJson2JsonRedisSerializer<>(Object.class);
StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
// key采用String的序列化方式
template.setKeySerializer(stringRedisSerializer);
// hash的key也采用String的序列化方式
template.setHashKeySerializer(stringRedisSerializer);
// value序列化方式采用fastJson
template.setValueSerializer(fastJsonRedisSerializer);
// hash的value序列化方式采用fastJson
template.setHashValueSerializer(fastJsonRedisSerializer);
template.afterPropertiesSet();
return template;
}
}
4.redis通用工具
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.*;
import org.springframework.stereotype.Component;
import java.util.*;
import java.util.concurrent.TimeUnit;
/**
* spring redis 工具类
**/
@Component
public class RedisUtil {
@Autowired
private RedisTemplate<Object, Object> redisTemplate;
/**
* 缓存基本的对象，Integer、String、实体类等
*
* @param key 缓存的键值
* @param value 缓存的值
* @return 缓存的对象
*/
public ValueOperations<Object, Object> setCacheObject(Object key, Object value) {
ValueOperations<Object, Object> operation = redisTemplate.opsForValue();
operation.set(key, value);
return operation;
}
/**
* 缓存基本的对象，Integer、String、实体类等
*
* @param key 缓存的键值
* @param value 缓存的值
* @param timeout 时间
* @param timeUnit 时间颗粒度
* @return 缓存的对象
*/
public ValueOperations<Object, Object> setCacheObject(Object key, Object value, Integer timeout, TimeUnit timeUnit) {
ValueOperations<Object, Object> operation = redisTemplate.opsForValue();
operation.set(key, value, timeout, timeUnit);
return operation;
}
/**
* 获得缓存的基本对象。
*
* @param key 缓存键值
* @return 缓存键值对应的数据
*/
public Object getCacheObject(Object key) {
ValueOperations<Object, Object> operation = redisTemplate.opsForValue();
return operation.get(key);
}
/**
* 删除单个对象
*
* @param key
*/
public void deleteObject(Object key) {
redisTemplate.delete(key);
}
/**
* 删除集合对象
*
* @param collection
*/
public void deleteObject(Collection collection) {
redisTemplate.delete(collection);
}
public Long getExpire(String key) {
return redisTemplate.getExpire(key);
}
public void expire(String key, int expire, TimeUnit timeUnit) {
redisTemplate.expire(key, expire, timeUnit);
}
/**
* 缓存List数据
*
* @param key 缓存的键值
* @param dataList 待缓存的List数据
* @return 缓存的对象
*/
public ListOperations<Object, Object> setCacheList(Object key, List<Object> dataList) {
ListOperations listOperation = redisTemplate.opsForList();
if (null != dataList) {
int size = dataList.size();
for (Object o : dataList) {
listOperation.leftPush(key, o);
}
}
return listOperation;
}
/**
* 获得缓存的list对象
*
* @param key 缓存的键值
* @return 缓存键值对应的数据
*/
public List<Object> getCacheList(String key) {
List<Object> dataList = new ArrayList<>();
ListOperations<Object, Object> listOperation = redisTemplate.opsForList();
Long size = listOperation.size(key);
if (null != size) {
for (int i = 0; i < size; i++) {
dataList.add(listOperation.index(key, i));
}
}
return dataList;
}
/**
* 缓存Set
*
* @param key 缓存键值
* @param dataSet 缓存的数据
* @return 缓存数据的对象
*/
public BoundSetOperations<Object, Object> setCacheSet(String key, Set<Object> dataSet) {
BoundSetOperations<Object, Object> setOperation = redisTemplate.boundSetOps(key);
for (Object o : dataSet) {
setOperation.add(o);
}
return setOperation;
}
/**
* 获得缓存的set
*
* @param key
* @return
*/
public Set<Object> getCacheSet(Object key) {
Set<Object> dataSet = new HashSet<>();
BoundSetOperations<Object, Object> operation = redisTemplate.boundSetOps(key);
dataSet = operation.members();
return dataSet;
}
/**
* 缓存Map
*
* @param key
* @param dataMap
* @return
*/
public HashOperations<Object, Object, Object> setCacheMap(Object key, Map<Object, Object> dataMap) {
HashOperations hashOperations = redisTemplate.opsForHash();
if (null != dataMap) {
for (Map.Entry<Object, Object> entry : dataMap.entrySet()) {
hashOperations.put(key, entry.getKey(), entry.getValue());
}
}
return hashOperations;
}
/**
* 获得缓存的Map
*
* @param key
* @return
*/
public Map<Object, Object> getCacheMap(Object key) {
Map<Object, Object> map = redisTemplate.opsForHash().entries(key);
return map;
}
/**
* 获得缓存的基本对象列表
*
* @param pattern 字符串前缀
* @return 对象列表
*/
public Collection<Object> keys(String pattern) {
return redisTemplate.keys(pattern);
}
}
