1.加入gogole提供的工具包(序列化會用到)+redis包

<!-- 工具庫 -->
<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>18.0</version>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
 
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

<!-- 序列化 -->
<dependency>
    <groupId>com.dyuproject.protostuff</groupId>
    <artifactId>protostuff-core</artifactId>
    <version>1.1.3</version>
</dependency>
 
<dependency>
    <groupId>com.dyuproject.protostuff</groupId>
    <artifactId>protostuff-runtime</artifactId>
    <version>1.1.3</version>
</dependency>

2.自己編寫序列化工具

@Slf4j
public class ProtoStuffUtil {
    /**
     * 序列化物件
*
     * @param obj
* @return
*/
public static 
 
<T> byte[] serialize(T obj) {
        if (obj == null) {
            log.error("Failed to serializer, obj is null");
            throw new RuntimeException("Failed to serializer");
}

        @SuppressWarnings("unchecked") Schema<T> schema = (Schema<T>) RuntimeSchema.getSchema(obj.getClass());
LinkedBuffer buffer = LinkedBuffer.allocate(1024 * 1024);
        byte[] protoStuff;
        try {
            protoStuff = ProtostuffIOUtil.toByteArray(obj, schema, buffer);
} catch (Exception e) {
            log.error("Failed to serializer, obj:{}", obj, e);
            throw new RuntimeException("Failed to serializer");
} finally {
            buffer.clear();
}
        return protoStuff;
}

    /**
     * 反序列化物件
*
     * @param paramArrayOfByte
* @param targetClass
* @return
*/
public static <T> T deserialize(byte[] paramArrayOfByte, Class<T> targetClass) {
        if (paramArrayOfByte == null || paramArrayOfByte.length == 0) {
            log.error("Failed to deserialize, byte is empty");
            throw new RuntimeException("Failed to deserialize");
}

        T instance;
        try {
            instance = targetClass.newInstance();
} catch (InstantiationException | IllegalAccessException e) {
            log.error("Failed to deserialize", e);
            throw new RuntimeException("Failed to deserialize");
}

        Schema<T> schema = RuntimeSchema.getSchema(targetClass);
ProtostuffIOUtil.mergeFrom(paramArrayOfByte, instance, schema);
        return instance;
}

    /**
     * 序列化列表
*
     * @param objList
* @return
*/
public static <T> byte[] serializeList(List<T> objList) {
        if (objList == null || objList.isEmpty()) {
            log.error("Failed to serializer, objList is empty");
            throw new RuntimeException("Failed to serializer");
}

        @SuppressWarnings("unchecked") Schema<T> schema =
                (Schema<T>) RuntimeSchema.getSchema(objList.get(0).getClass());
LinkedBuffer buffer = LinkedBuffer.allocate(1024 * 1024);
        byte[] protoStuff;
ByteArrayOutputStream bos = null;
        try {
            bos = new ByteArrayOutputStream();
ProtostuffIOUtil.writeListTo(bos, objList, schema, buffer);
protoStuff = bos.toByteArray();
} catch (Exception e) {
            log.error("Failed to serializer, obj list:{}", objList, e);
            throw new RuntimeException("Failed to serializer");
} finally {
            buffer.clear();
            try {
                if (bos != null) {
                    bos.close();
}
            } catch (IOException e) {
                e.printStackTrace();
}
        }

        return protoStuff;
}

    /**
     * 反序列化列表
*
     * @param paramArrayOfByte
* @param targetClass
* @return
*/
public static <T> List<T> deserializeList(byte[] paramArrayOfByte, Class<T> targetClass) {
        if (paramArrayOfByte == null || paramArrayOfByte.length == 0) {
            log.error("Failed to deserialize, byte is empty");
            throw new RuntimeException("Failed to deserialize");
}

        Schema<T> schema = RuntimeSchema.getSchema(targetClass);
List<T> result;
        try {
            result = ProtostuffIOUtil.parseListFrom(new ByteArrayInputStream(paramArrayOfByte), schema);
} catch (IOException e) {
            log.error("Failed to deserialize", e);
            throw new RuntimeException("Failed to deserialize");
}
        return result;
}

}

3.RedisTemplate的工具類方法

@Component
public class RedisClient {
    private final RedisTemplate<String, String> redisTemplate;
@Autowired
public RedisClient(RedisTemplate<String, String> redisTemplate) {
        this.redisTemplate = redisTemplate;
}

    /**
     * get cache
     *
     * @param field
* @param targetClass
* @param <T>
* @return
*/
public <T> T get(final String field, Class<T> targetClass) {
        byte[] result = redisTemplate.execute((RedisCallback<byte[]>) connection -> connection.get(field.getBytes()));
        if (result == null) {
            return null;
}

        return ProtoStuffUtil.deserialize(result, targetClass);
}

    /**
     * put cache
     *
     * @param field
* @param obj
* @param <T>
* @return
*/
public <T> void set(String field, T obj) {
        final byte[] value = ProtoStuffUtil.serialize(obj);
redisTemplate.execute((RedisCallback<Void>) connection -> {
            connection.set(field.getBytes(), value);
            return null;
});
}

    /**
     * put cache with expire time
     *
     * @param field
* @param obj
* @param expireTime 單位: s
     * @param <T>
*/
public <T> void setWithExpire(String field, T obj, final long expireTime) {
        final byte[] value = ProtoStuffUtil.serialize(obj);
redisTemplate.execute((RedisCallback<Void>) connection -> {
            connection.setEx(field.getBytes(), expireTime, value);
            return null;
});
}

    /**
     * get list cache
     *
     * @param field
* @param targetClass
* @param <T>
* @return
*/
public <T> List<T> getList(final String field, Class<T> targetClass) {
        byte[] result = redisTemplate.execute((RedisCallback<byte[]>) connection -> connection.get(field.getBytes()));
        if (result == null) {
            return null;
}

        return ProtoStuffUtil.deserializeList(result, targetClass);
}

    /**
     * put list cache
     *
     * @param field
* @param objList
* @param <T>
* @return
*/
public <T> void setList(String field, List<T> objList) {
        final byte[] value = ProtoStuffUtil.serializeList(objList);
redisTemplate.execute((RedisCallback<Void>) connection -> {
            connection.set(field.getBytes(), value);
            return null;
});
}

    /**
     * put list cache with expire time
     *
     * @param field
* @param objList
* @param expireTime
* @param <T>
* @return
*/
public <T> void setListWithExpire(String field, List<T> objList, final long expireTime) {
        final byte[] value = ProtoStuffUtil.serializeList(objList);
redisTemplate.execute((RedisCallback<Void>) connection -> {
            connection.setEx(field.getBytes(), expireTime, value);
            return null;
});
}

    /**
     * get h cache
     *
     * @param key
* @param field
* @param targetClass
* @param <T>
* @return
*/
public <T> T hGet(final String key, final String field, Class<T> targetClass) {
        byte[] result = redisTemplate
.execute((RedisCallback<byte[]>) connection -> connection.hGet(key.getBytes(), field.getBytes()));
        if (result == null) {
            return null;
}

        return ProtoStuffUtil.deserialize(result, targetClass);
}

    /**
     * put hash cache
     *
     * @param key
* @param field
* @param obj
* @param <T>
* @return
*/
public <T> boolean hSet(String key, String field, T obj) {
        final byte[] value = ProtoStuffUtil.serialize(obj);
        return redisTemplate.execute(
                (RedisCallback<Boolean>) connection -> connection.hSet(key.getBytes(), field.getBytes(), value));
}

    /**
     * put hash cache
     *
     * @param key
* @param field
* @param obj
* @param <T>
*/
public <T> void hSetWithExpire(String key, String field, T obj, long expireTime) {
        final byte[] value = ProtoStuffUtil.serialize(obj);
redisTemplate.execute((RedisCallback<Void>) connection -> {
            connection.hSet(key.getBytes(), field.getBytes(), value);
connection.expire(key.getBytes(), expireTime);
            return null;
});
}

    /**
     * get list cache
     *
     * @param key
* @param field
* @param targetClass
* @param <T>
* @return
*/
public <T> List<T> hGetList(final String key, final String field, Class<T> targetClass) {
        byte[] result = redisTemplate
.execute((RedisCallback<byte[]>) connection -> connection.hGet(key.getBytes(), field.getBytes()));
        if (result == null) {
            return null;
}

        return ProtoStuffUtil.deserializeList(result, targetClass);
}

    /**
     * put list cache
     *
     * @param key
* @param field
* @param objList
* @param <T>
* @return
*/
public <T> boolean hSetList(String key, String field, List<T> objList) {
        final byte[] value = ProtoStuffUtil.serializeList(objList);
        return redisTemplate.execute(
                (RedisCallback<Boolean>) connection -> connection.hSet(key.getBytes(), field.getBytes(), value));
}

    /**
     * get cache by keys
     *
     * @param key
* @param fields
* @param targetClass
* @param <T>
* @return
*/
public <T> Map<String, T> hMGet(String key, Collection<String> fields, Class<T> targetClass) {
        List<byte[]> byteFields = fields.stream().map(String::getBytes).collect(Collectors.toList());
        byte[][] queryFields = new byte[byteFields.size()][];
byteFields.toArray(queryFields);
List<byte[]> cache = redisTemplate
.execute((RedisCallback<List<byte[]>>) connection -> connection.hMGet(key.getBytes(), queryFields));
Map<String, T> results = new HashMap<>(16);
Iterator<String> it = fields.iterator();
        int index = 0;
        while (it.hasNext()) {
            String k = it.next();
            if (cache.get(index) == null) {
                index++;
                continue;
}

            results.put(k, ProtoStuffUtil.deserialize(cache.get(index), targetClass));
index++;
}

        return results;
}

    /**
     * set cache by keys
     *
     * @param field
* @param values
* @param <T>
*/
public <T> void hMSet(String field, Map<String, T> values) {
        Map<byte[], byte[]> byteValues = new HashMap<>(16);
        for (Map.Entry<String, T> value : values.entrySet()) {
            byteValues.put(value.getKey().getBytes(), ProtoStuffUtil.serialize(value.getValue()));
}

        redisTemplate.execute((RedisCallback<Void>) connection -> {
            connection.hMSet(field.getBytes(), byteValues);
            return null;
});
}

    /**
     * get caches in hash
     *
     * @param key
* @param targetClass
* @param <T>
* @return
*/
public <T> Map<String, T> hGetAll(String key, Class<T> targetClass) {
        Map<byte[], byte[]> records = redisTemplate
.execute((RedisCallback<Map<byte[], byte[]>>) connection -> connection.hGetAll(key.getBytes()));
Map<String, T> ret = new HashMap<>(16);
        for (Map.Entry<byte[], byte[]> record : records.entrySet()) {
            T obj = ProtoStuffUtil.deserialize(record.getValue(), targetClass);
ret.put(new String(record.getKey()), obj);
}

        return ret;
}

    /**
     * list index
     *
     * @param key
* @param index
* @param targetClass
* @param <T>
* @return
*/
public <T> T lIndex(String key, int index, Class<T> targetClass) {
        byte[] value =
                redisTemplate.execute((RedisCallback<byte[]>) connection -> connection.lIndex(key.getBytes(), index));
        return ProtoStuffUtil.deserialize(value, targetClass);
}

    /**
     * list range
     *
     * @param key
* @param start
* @param end
* @param targetClass
* @param <T>
* @return
*/
public <T> List<T> lRange(String key, int start, int end, Class<T> targetClass) {
        List<byte[]> value = redisTemplate
.execute((RedisCallback<List<byte[]>>) connection -> connection.lRange(key.getBytes(), start, end));
        return value.stream().map(record -> ProtoStuffUtil.deserialize(record, targetClass))
                .collect(Collectors.toList());
}

    /**
     * list left push
     *
     * @param key
* @param obj
* @param <T>
*/
public <T> void lPush(String key, T obj) {
        final byte[] value = ProtoStuffUtil.serialize(obj);
redisTemplate.execute((RedisCallback<Long>) connection -> connection.lPush(key.getBytes(), value));
}

    /**
     * list left push
     *
     * @param key
* @param objList
* @param <T>
*/
public <T> void lPush(String key, List<T> objList) {
        List<byte[]> byteFields = objList.stream().map(ProtoStuffUtil::serialize).collect(Collectors.toList());
        byte[][] values = new byte[byteFields.size()][];
redisTemplate.execute((RedisCallback<Long>) connection -> connection.lPush(key.getBytes(), values));
}

    /**
     * 精確刪除key
     *
     * @param key
*/
public void deleteCache(String key) {
        redisTemplate.delete(key);
}


    /**
     * 排行榜的存入
*
     * @param redisKey
* @param immutablePair
*/
public void zAdd(String redisKey, ImmutablePair<String, BigDecimal> immutablePair) {
        final byte[] key = redisKey.getBytes();
        final byte[] value = immutablePair.getLeft().getBytes();
redisTemplate.execute((RedisCallback<Boolean>) connection -> connection
                .zAdd(key, immutablePair.getRight().doubleValue(), value));
}

    /**
     * 獲取排行榜低->高排序
*
     * @param redisKey 要進行排序的類別
* @param start
* @param end
* @return
*/
public List<ImmutablePair<String, BigDecimal>> zRangeWithScores(String redisKey, int start, int end) {
        Set<RedisZSetCommands.Tuple> items = redisTemplate.execute(
                (RedisCallback<Set<RedisZSetCommands.Tuple>>) connection -> connection
                        .zRangeWithScores(redisKey.getBytes(), start, end));
        return items.stream()
                .map(record -> ImmutablePair.of(new String(record.getValue()), BigDecimal.valueOf(record.getScore())))
                .collect(Collectors.toList());
}


    /**
     * 獲取排行榜高->低排序
*
     * @param redisKey 要進行排序的類別
* @param start
* @param end
* @return
*/
public List<ImmutablePair<String, BigDecimal>> zRevRangeWithScores(String redisKey, int start, int end) {
        Set<RedisZSetCommands.Tuple> items = redisTemplate.execute(
                (RedisCallback<Set<RedisZSetCommands.Tuple>>) connection -> connection
                        .zRevRangeWithScores(redisKey.getBytes(), start, end));
        return items.stream()
                .map(record -> ImmutablePair.of(new String(record.getValue()), BigDecimal.valueOf(record.getScore())))
                .collect(Collectors.toList());
}
}