本文整理了Java中redis.clients.jedis.Jedis.srandmember()方法的一些代码示例，展示了Jedis.srandmember()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Jedis.srandmember()方法的具体详情如下：
包路径：redis.clients.jedis.Jedis
类名称：Jedis
方法名：srandmember

Jedis.srandmember介绍

[英]Return a random element from a Set, without removing the element. If the Set is empty or the key does not exist, a nil object is returned.

The SPOP command does a similar work but the returned element is popped (removed) from the Set.

Time complexity O(1)
[中]从集合中返回一个随机元素，而不删除该元素。如果集合为空或键不存在，则返回nil对象。
SPOP命令执行类似的工作，但返回的元素从集合中弹出（删除）。
时间复杂度O（1）

代码示例

代码示例来源：origin: sohutv/cachecloud

@Override
 public String execute(Jedis connection) {
  return connection.srandmember(key);
 }
}.run(key);

代码示例来源：origin: sohutv/cachecloud

@Override
 public List<String> execute(Jedis connection) {
  return connection.srandmember(key, count);
 }
}.run(key);

代码示例来源：origin: sohutv/cachecloud

@Override
 public List<byte[]> execute(Jedis connection) {
  return connection.srandmember(key, count);
 }
}.runBinary(key);

代码示例来源：origin: sohutv/cachecloud

public byte[] execute(Jedis connection) {
    return connection.srandmember(keyByte);
  }
}.runBinary(keyByte);

代码示例来源：origin: sohutv/cachecloud

@Override
 public byte[] execute(Jedis connection) {
  return connection.srandmember(key);
 }
}.runBinary(key);

代码示例来源：origin: sohutv/cachecloud

@Override
public List<String> srandmember(String key, int count) {
 Jedis j = getShard(key);
 return j.srandmember(key, count);
}

代码示例来源：origin: sohutv/cachecloud

@Override
public List srandmember(byte[] key, int count) {
 Jedis j = getShard(key);
 return j.srandmember(key, count);
}

代码示例来源：origin: sohutv/cachecloud

@Override
public String srandmember(String key) {
 Jedis j = getShard(key);
 return j.srandmember(key);
}

代码示例来源：origin: sohutv/cachecloud

@Override
public byte[] srandmember(byte[] key) {
 Jedis j = getShard(key);
 return j.srandmember(key);
}

代码示例来源：origin: Netflix/conductor

@Override
public String srandmember(String key) {
 Jedis jedis = null;
  try {
   jedis = jedisPool.getResource();
   return jedis.srandmember(key);
  } finally {
   if (jedis != null)
    jedis.close();
  }
}

代码示例来源：origin: Netflix/conductor

@Override
public List<String> srandmember(String key, int count) {
 Jedis jedis = null;
  try {
   jedis = jedisPool.getResource();
   return jedis.srandmember(key, count);
  } finally {
   if (jedis != null)
    jedis.close();
  }
}

代码示例来源：origin: jfinal/jfinal

/**
 * 返回集合中的一个随机元素。
 */
@SuppressWarnings("unchecked")
public <T> T srandmember(Object key) {
  Jedis jedis = getJedis();
  try {
    return (T)valueFromBytes(jedis.srandmember(keyToBytes(key)));
  }
  finally {close(jedis);}
}

代码示例来源：origin: jfinal/jfinal

/**
 * 返回集合中的 count 个随机元素。
 * 从 Redis 2.6 版本开始， SRANDMEMBER 命令接受可选的 count 参数：
 * 如果 count 为正数，且小于集合基数，那么命令返回一个包含 count 个元素的数组，数组中的元素各不相同。
 * 如果 count 大于等于集合基数，那么返回整个集合。
 * 如果 count 为负数，那么命令返回一个数组，数组中的元素可能会重复出现多次，而数组的长度为 count 的绝对值。
 * 该操作和 SPOP 相似，但 SPOP 将随机元素从集合中移除并返回，而 SRANDMEMBER 则仅仅返回随机元素，而不对集合进行任何改动。
 */
@SuppressWarnings("rawtypes")
public List srandmember(Object key, int count) {
  Jedis jedis = getJedis();
  try {
    List<byte[]> data = jedis.srandmember(keyToBytes(key), count);
    return valueListFromBytesList(data);
  }
  finally {close(jedis);}
}

代码示例来源：origin: spring-projects/spring-data-redis

@Override
public List<byte[]> sRandMember(byte[] key, long count) {
  Assert.notNull(key, "Key must not be null!");
  if (count > Integer.MAX_VALUE) {
    throw new IllegalArgumentException("Count must be less than Integer.MAX_VALUE for sRandMember in Jedis.");
  }
  try {
    if (isPipelined()) {
      pipeline(connection.newJedisResult(connection.getRequiredPipeline().srandmember(key, (int) count)));
      return null;
    }
    if (isQueueing()) {
      transaction(connection.newJedisResult(connection.getRequiredTransaction().srandmember(key, (int) count)));
      return null;
    }
    return connection.getJedis().srandmember(key, (int) count);
  } catch (Exception ex) {
    throw convertJedisAccessException(ex);
  }
}

代码示例来源：origin: spring-projects/spring-data-redis

@Override
public byte[] sRandMember(byte[] key) {
  Assert.notNull(key, "Key must not be null!");
  try {
    if (isPipelined()) {
      pipeline(connection.newJedisResult(connection.getRequiredPipeline().srandmember(key)));
      return null;
    }
    if (isQueueing()) {
      transaction(connection.newJedisResult(connection.getRequiredTransaction().srandmember(key)));
      return null;
    }
    return connection.getJedis().srandmember(key);
  } catch (Exception ex) {
    throw convertJedisAccessException(ex);
  }
}

代码示例来源：origin: jwpttcg66/NettyGameServer

public String sRandMember(String key){
  Jedis jedis = null;
  boolean sucess = true;
  String ret = null;
  try {
    jedis = jedisPool.getResource();
    ret = jedis.srandmember(key);
  } catch (Exception e) {
    sucess = false;
    returnBrokenResource(jedis, "lpop key:"+key, e);
  } finally {
    if (sucess && jedis != null) {
      returnResource(jedis);
    }
  }
  return ret;
}

代码示例来源：origin: jwpttcg66/NettyGameServer

public List<String> sRandMember(String key, int count){
  Jedis jedis = null;
  boolean sucess = true;
  List<String> ret = null;
  try {
    jedis = jedisPool.getResource();
    ret = jedis.srandmember(key, count);
  } catch (Exception e) {
    sucess = false;
    returnBrokenResource(jedis, "sRandMember key:"+key, e);
  } finally {
    if (sucess && jedis != null) {
      returnResource(jedis);
    }
  }
  return ret;
}

代码示例来源：origin: com.netflix.spinnaker.kork/kork-jedis

@Override
public List<String> srandmember(String key, int count) {
 String command = "srandmember";
 return instrumented(command, () -> delegated.srandmember(key, count));
}

代码示例来源：origin: com.netflix.spinnaker.kork/kork-jedis

@Override
public List<byte[]> srandmember(byte[] key, int count) {
 String command = "srandmember";
 return instrumented(command, () -> delegated.srandmember(key, count));
}

代码示例来源：origin: yangfuhai/jboot

/**
 * 返回集合中的一个随机元素。
 */
@SuppressWarnings("unchecked")
public <T> T srandmember(Object key) {
  Jedis jedis = getJedis();
  try {
    return (T) valueFromBytes(jedis.srandmember(keyToBytes(key)));
  } finally {
    returnResource(jedis);
  }
}