Java Code Examples for org.springframework.data.redis.connection.RedisConnection#set()

public static int updateAndGetVersion(
    RedisConnectionFactory redisConnectionFactory, String versionDbKey, int defaultVersion) {
  RedisConnection connection = RedisConnectionUtils.getConnection(redisConnectionFactory);
  byte[] versionKey = versionDbKey.getBytes();
  byte[] versionFromDb = connection.get(versionKey);
  if (SerializationUtils.isEmpty(versionFromDb)) {
    Long count =
        connection.eval(
            "return #redis.pcall('keys', 'rqueue-*')".getBytes(), ReturnType.INTEGER, 0);
    if (count != null && count > 0L) {
      int version = 1;
      connection.set(versionKey, String.valueOf(version).getBytes());
      return version;
    }
    connection.set(versionKey, String.valueOf(defaultVersion).getBytes());
    return defaultVersion;
  }
  return Integer.parseInt(new String(versionFromDb));
}
 

@Override
public void storeRefreshToken(OAuth2RefreshToken refreshToken, OAuth2Authentication authentication) {
    byte[] refreshKey = serializeKey(REFRESH + refreshToken.getValue());
    byte[] refreshAuthKey = serializeKey(REFRESH_AUTH + refreshToken.getValue());
    byte[] serializedRefreshToken = serialize(refreshToken);
    RedisConnection conn = getConnection();
    try {
        conn.openPipeline();
        if (springDataRedis_2_0) {
            try {
                this.redisConnectionSet_2_0.invoke(conn, refreshKey, serializedRefreshToken);
                this.redisConnectionSet_2_0.invoke(conn, refreshAuthKey, serialize(authentication));
            } catch (Exception ex) {
                throw new RuntimeException(ex);
            }
        } else {
            conn.set(refreshKey, serializedRefreshToken);
            conn.set(refreshAuthKey, serialize(authentication));
        }
        expireRefreshToken(refreshToken, conn, refreshKey, refreshAuthKey);
        conn.closePipeline();
    } finally {
        conn.close();
    }
}
 

/**
 * 将随机生成的授权码存到redis中
 *
 * @param code
 * @param authentication
 * @return void
 */
@Override
protected void store(String code, OAuth2Authentication authentication) {
    byte[] serializedKey = serializeKey(AUTHORIZATION_CODE + code);
    byte[] serializedAuthentication = serialize(authentication);
    RedisConnection conn = getConnection();
    try {
        conn.openPipeline();
        conn.set(serializedKey, serializedAuthentication);
        conn.expire(serializedKey,expiration);
        conn.closePipeline();
    } finally {
        conn.close();
    }

}
 

/**
 * saveCache:(设置缓存-带有效期)
 *
 * @param key
 * @param value
 * @param seconds 有效时间 单位（秒）
 * @return
 * @author rufei.cn
 */
@RequestMapping("save")
public long saveCache(String key, String value, long seconds) {
    logger.info("save:(设置缓存-带有效期) 开始 key={},seconds={}", key, seconds);
    long result = -1;
    if (StringUtil.isBlank(key)) {
        return result;
    }
    RedisConnection conn = getRedisConnection();
    if (conn == null) {
        return result;
    }
    try {
        Boolean ret = conn.set(key.getBytes(), value.getBytes(), Expiration.seconds(seconds), RedisStringCommands.SetOption.UPSERT);
        if (ret) {
            result = 1L;
        }
    } catch (Exception e) {
        logger.error("saveCache:" + StringUtil.getExceptionMsg(e));
    }
    logger.info("saveCache:(设置缓存-带有效期) 结束 key={},result={}", key, result);
    return result;
}
 

/**
 * getLock（分布式锁-正确方式）
 *
 * @param key        锁标识
 * @param requestId  请求唯一标识，解锁需要带入
 * @param expireTime 自动释放锁的时间
 */
@RequestMapping("getLock")
public Long getLock(String key, String requestId, long expireTime) {
    Long result = -1L;
    if (StringUtil.isBlank(key)) {
        return result;
    }
    if (StringUtil.isBlank(requestId)) {
        return result;
    }
    RedisConnection conn = getRedisConnection();
    if (conn == null) {
        return result;
    }
    try {
        boolean ret = conn.set(key.getBytes(Charset.forName("UTF-8")), requestId.getBytes(Charset.forName("UTF-8")), Expiration.milliseconds(expireTime), RedisStringCommands.SetOption.SET_IF_ABSENT);
        if (ret) {
            result = 1L;
        }
    } catch (Exception e) {
        logger.error("getRedisLock（取分布式锁-正确方式）异常={}", StringUtil.getExceptionMsg(e));
    }
    return result;
}
 

@Override
protected CacheResult do_PUT_IF_ABSENT(K key, V value, long expireAfterWrite, TimeUnit timeUnit) {
    RedisConnection con = null;
    try {
        con = connectionFactory.getConnection();
        CacheValueHolder<V> holder = new CacheValueHolder(value, timeUnit.toMillis(expireAfterWrite));
        byte[] newKey = buildKey(key);
        Boolean result = con.set(newKey, valueEncoder.apply(holder),
               Expiration.from(expireAfterWrite, timeUnit), RedisStringCommands.SetOption.ifAbsent());
        if (Boolean.TRUE.equals(result)) {
            return CacheResult.SUCCESS_WITHOUT_MSG;
        }/* else if (result == null) {
            return CacheResult.EXISTS_WITHOUT_MSG;
        } */ else {
            return CacheResult.EXISTS_WITHOUT_MSG;
        }
    } catch (Exception ex) {
        logError("PUT_IF_ABSENT", key, ex);
        return new CacheResult(ex);
    } finally {
        closeConnection(con);
    }
}
 

/**
 * 更新缓存中的对象，也可以在redis缓存中存入新的对象
 *
 * @param key
 * @param t
 * @param <T>
 */
public <T> void set(String key, T t) {
    byte[] keyBytes = getKey(key);
    RedisSerializer serializer = redisTemplate.getValueSerializer();
    byte[] val = serializer.serialize(t);
    RedisConnection redisConnection = getConnection();

    if(null!=redisConnection){
        try {
            redisConnection.set(keyBytes, val);
        }finally {
            releaseConnection(redisConnection);
        }
    }else{
        logger.error("1. can not get valid connection");
    }
}
 

/**
 * 更新缓存中的对象，也可以在redis缓存中存入新的对象
 *
 * @param key
 * @param t
 * @param <T>
 */
public <T> void set(String key, T t) {
    byte[] keyBytes = getKey(key);
    RedisSerializer serializer = redisTemplate.getValueSerializer();
    byte[] val = serializer.serialize(t);
    RedisConnection redisConnection = getConnection();

    if(null!=redisConnection){
        try {
            redisConnection.set(keyBytes, val);
        }finally {
            releaseConnection(redisConnection);
        }
    }else{
        logger.error("1. can not get valid connection");
    }
}
 

@RequestMapping(method = RequestMethod.GET)
public @ResponseBody Result onRootAccess() {

    RedisConnection redisConnection = redisConnectionFactory.getConnection();
    log.info("Setting key/value pair 'hello'/'world'");
    redisConnection.set("hello".getBytes(), "world".getBytes());

    log.info("Retrieving value for key 'hello': ");
    final String value = new String(redisConnection.get("hello".getBytes()));
    Result result = new Result();
    result.setStatus("Succesfully connected to Redis and retrieved the key/value pair that was inserted");
    RedisObject redisObject = new RedisObject();
    redisObject.setKey("hello");
    redisObject.setValue(value);
    final ArrayList<RedisObject> redisObjects = new ArrayList<RedisObject>();
    redisObjects.add(redisObject);
    result.setRedisObjects(redisObjects);
    return result;
}
 

@Override
public void unlock() {
    Expiration keepLockFor = getExpiration(lockConfiguration.getLockAtLeastUntil());
    RedisConnection redisConnection = null;
    // lock at least until is in the past
    if (keepLockFor.getExpirationTimeInMilliseconds() <= 0) {
        try {
            redisConnection = redisConnectionFactory.getConnection();
            redisConnection.del(key.getBytes());
        } catch (Exception e) {
            throw new LockException("Can not remove node", e);
        } finally {
            close(redisConnection);
        }
    } else {
        try {
            redisConnection = redisConnectionFactory.getConnection();
            redisConnection.set(key.getBytes(), buildValue(lockConfiguration.getLockAtMostUntil()), keepLockFor, SetOption.SET_IF_PRESENT);
        } finally {
            close(redisConnection);
        }
    }
}
 

public static void setVersion(
    RedisConnectionFactory connectionFactory, String versionKey, int version) {
  RedisConnection connection = RedisConnectionUtils.getConnection(connectionFactory);
  byte[] versionKeyBytes = versionKey.getBytes();
  connection.set(versionKeyBytes, String.valueOf(version).getBytes());
}
 

@Test
public void testIncre() {

    RedisConnection connection = template.getConnectionFactory().getConnection();
    byte[] key = Bytes.toBytes("ljinshuan123");
    Long incr = connection.incr(key);

    byte[] bytes = connection.get(key);

    connection.set(key, bytes);

    connection.incr(key);
    bytes = connection.get(key);

}
 

public void testRedis(){



//        stringRedisTemplate.opsForValue().set("hello01","china");
//
//        System.out.println(stringRedisTemplate.opsForValue().get("hello01"));

        RedisConnection conn = redisTemplate.getConnectionFactory().getConnection();

        conn.set("hello02".getBytes(),"mashibing".getBytes());
        System.out.println(new String(conn.get("hello02".getBytes())));


//        HashOperations<String, Object, Object> hash = stringRedisTemplate.opsForHash();
//        hash.put("sean","name","zhouzhilei");
//        hash.put("sean","age","22");
//
//        System.out.println(hash.entries("sean"));


        Person p = new Person();
        p.setName("zhangsan");
        p.setAge(16);

//        stringRedisTemplate.setHashValueSerializer(new Jackson2JsonRedisSerializer<Object>(Object.class));

        Jackson2HashMapper jm = new Jackson2HashMapper(objectMapper, false);

        stringRedisTemplate.opsForHash().putAll("sean01",jm.toHash(p));

        Map map = stringRedisTemplate.opsForHash().entries("sean01");

        Person per = objectMapper.convertValue(map, Person.class);
        System.out.println(per.getName());


        stringRedisTemplate.convertAndSend("ooxx","hello");

        RedisConnection cc = stringRedisTemplate.getConnectionFactory().getConnection();
        cc.subscribe(new MessageListener() {
            @Override
            public void onMessage(Message message, byte[] pattern) {
                byte[] body = message.getBody();
                System.out.println(new String(body));
            }
        }, "ooxx".getBytes());

        while(true){
            stringRedisTemplate.convertAndSend("ooxx","hello  from wo zi ji ");
            try {
                Thread.sleep(3000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        }


    }