本文整理了Java中redis.clients.jedis.Jedis.decrBy()方法的一些代码示例，展示了Jedis.decrBy()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.decrBy()方法的具体详情如下：
包路径：redis.clients.jedis.Jedis
类名称：Jedis
方法名：decrBy

Jedis.decrBy介绍

[英]IDECRBY work just like #decr(String) but instead to decrement by 1 the decrement is integer.

INCR commands are limited to 64 bit signed integers.

Note: this is actually a string operation, that is, in Redis there are not "integer" types. Simply the string stored at the key is parsed as a base 10 64 bit signed integer, incremented, and then converted back as a string.

Time complexity: O(1)
[中]IDECRBY的工作原理与#decre（String）类似，但要将减量减1，减量是整数。
INCR命令限制为64位有符号整数。
注意：这实际上是一个字符串操作，也就是说，在Redis中没有“整数”类型。只需将存储在密钥处的字符串解析为一个以10为基数的64位有符号整数，递增，然后转换回字符串即可。
时间复杂度：O（1）

代码示例

代码示例来源：origin: sohutv/cachecloud

@Override
 public Long execute(Jedis connection) {
  return connection.decrBy(key, integer);
 }
}.run(key);

代码示例来源：origin: sohutv/cachecloud

@Override
 public Long execute(Jedis connection) {
  return connection.decrBy(key, integer);
 }
}.runBinary(key);

代码示例来源：origin: sohutv/cachecloud

@Override
public Long decrBy(byte[] key, long integer) {
 Jedis j = getShard(key);
 return j.decrBy(key, integer);
}

代码示例来源：origin: sohutv/cachecloud

@Override
public Long decrBy(String key, long integer) {
 Jedis j = getShard(key);
 return j.decrBy(key, integer);
}

代码示例来源：origin: Netflix/conductor

@Override
public Long decrBy(String key, long integer) {
 Jedis jedis = null;
  try {
   jedis = jedisPool.getResource();
   return jedis.decrBy(key, integer);
  } finally {
   if (jedis != null)
    jedis.close();
  }
}

代码示例来源：origin: jfinal/jfinal

/**
 * 将 key 所储存的值减去减量 decrement 。
 * 如果 key 不存在，那么 key 的值会先被初始化为 0 ，然后再执行 DECRBY 操作。
 * 如果值包含错误的类型，或字符串类型的值不能表示为数字，那么返回一个错误。
 * 本操作的值限制在 64 位(bit)有符号数字表示之内。
 * 关于更多递增(increment) / 递减(decrement)操作的更多信息，请参见 INCR 命令。
 */
public Long decrBy(Object key, long longValue) {
  Jedis jedis = getJedis();
  try {
    return jedis.decrBy(keyToBytes(key), longValue);
  }
  finally {close(jedis);}
}

代码示例来源：origin: apache/ignite

try (Jedis jedis = pool.getResource()) {
  Assert.assertEquals(2, (long)jedis.incrBy("newKeyIncrBy", 2));
  Assert.assertEquals(-2, (long)jedis.decrBy("newKeyDecrBy", 2));
  Assert.assertEquals(9L, (long)jedis.decrBy("incrDecrKeyBy", 2));
    jedis.decrBy("outOfRangeDecrBy", Long.MIN_VALUE);
    jedis.decrBy("outOfRangeDecrBy2", Long.MIN_VALUE);

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

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

代码示例来源：origin: jwpttcg66/NettyGameServer

/**
 * 返回是否成功
 * @param key
 * @return
 */
public boolean decrBy(String key, int size){
  Jedis jedis = null;
  boolean sucess = true;
  long result = -1;
  try {
    jedis = jedisPool.getResource();
    jedis.decrBy(key, size);
  } catch (Exception e) {
    sucess = false;
    returnBrokenResource(jedis, "decrBy:"+key, e);
  } finally {
    if (sucess && jedis != null) {
      returnResource(jedis);
    }
  }
  return sucess;
} 
public boolean exists(String key){

代码示例来源：origin: tangyanbo/springmore

@Override
  public Long action(Jedis jedis) {
    return jedis.decrBy(key, decrement);
  }
});

代码示例来源：origin: yrain/smart-cache

@Override
  Long doInJedis(Jedis jedis) {
    return jedis.decrBy(key, value);
  }
});

代码示例来源：origin: io.leopard/leopard-redis

@Override
  public Object execute(Jedis jedis) {
    return jedis.decrBy(key, integer);
  }
});

代码示例来源：origin: apache/servicemix-bundles

@Override
 public Long execute(Jedis connection) {
  return connection.decrBy(key, decrement);
 }
}.run(key);

代码示例来源：origin: apache/servicemix-bundles

@Override
 public Long execute(Jedis connection) {
  return connection.decrBy(key, decrement);
 }
}.runBinary(key);

代码示例来源：origin: org.nuxeo.ecm.core/nuxeo-core-redis

@Override
protected long decrementStorageSize(final long size) {
  return redisExecutor.execute((RedisCallable<Long>) jedis -> {
    Long decremented = jedis.decrBy(sizeKey, size);
    if (log.isDebugEnabled()) {
      log.debug(String.format("Decremented Redis key %s to %d", sizeKey, decremented));
    }
    return decremented;
  });
}

代码示例来源：origin: apache/servicemix-bundles

@Override
public Long decrBy(final String key, final long decrement) {
 Jedis j = getShard(key);
 return j.decrBy(key, decrement);
}

代码示例来源：origin: com.github.yamingd.argo/argo-redis

public Long execute(final Jedis conn) throws Exception {
    return conn.decrBy(SafeEncoder.encode(key), amount);
  }
});

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

@Override
public Long decrBy(String key, long integer) {
 String command = "decrBy";
 return instrumented(command, () -> delegated.decrBy(key, integer));
}

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

@Override
public Long decrBy(byte[] key, long integer) {
 String command = "decrBy";
 return instrumented(command, () -> delegated.decrBy(key, integer));
}

代码示例来源：origin: com.netflix.conductor/conductor-redis-persistence

@Override
public Long decrBy(String key, long integer) {
 Jedis jedis = null;
  try {
   jedis = jedisPool.getResource();
   return jedis.decrBy(key, integer);
  } finally {
   if (jedis != null)
    jedis.close();
  }
}