本文整理了Java中org.springframework.data.redis.core.BoundHashOperations.putIfAbsent()方法的一些代码示例，展示了BoundHashOperations.putIfAbsent()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。BoundHashOperations.putIfAbsent()方法的具体详情如下：
包路径：org.springframework.data.redis.core.BoundHashOperations
类名称：BoundHashOperations
方法名：putIfAbsent

BoundHashOperations.putIfAbsent介绍

[英]Set the value of a hash key only if key does not exist.
[中]仅当哈希键不存在时才设置哈希键的值。

代码示例

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

@Override
@Nullable
public V putIfAbsent(K key, V value) {
  return (hashOps.putIfAbsent(key, value) ? null : get(key));
}

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

@Override
public Object putIfAbsent(Object key, Object value) {
  return (hashOps.putIfAbsent((String) key, (String) value) ? null : get(key));
}

代码示例来源：origin: org.springframework.data/spring-data-redis

@Override
@Nullable
public V putIfAbsent(K key, V value) {
  return (hashOps.putIfAbsent(key, value) ? null : get(key));
}

代码示例来源：origin: org.springframework.data/spring-data-redis

@Override
public Object putIfAbsent(Object key, Object value) {
  return (hashOps.putIfAbsent((String) key, (String) value) ? null : get(key));
}

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

@Override
@Nullable
public V putIfAbsent(K key, V value) {
  return (hashOps.putIfAbsent(key, value) ? null : get(key));
}

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

@Override
public Object putIfAbsent(Object key, Object value) {
  return (hashOps.putIfAbsent((String) key, (String) value) ? null : get(key));
}

代码示例来源：origin: chengzhx76/weixin-shop-spring-cloud

public Long increase(String key, String field) {
  BoundHashOperations hashOps = redisTemplate.boundHashOps(key);
  //redisTemplate.setKeySerializer(new StringRedisSerializer(StandardCharsets.UTF_8));
  //redisTemplate.setValueSerializer(new StringRedisSerializer());
  //redisTemplate.setHashKeySerializer(new StringRedisSerializer(StandardCharsets.UTF_8));
  redisTemplate.setHashValueSerializer(new GenericToStringSerializer(Long.class));
  if (exists(key, field)) {
    return hashOps.increment(field, 1L);
  } else {
    hashOps.putIfAbsent(field, 1);
    return 1L;
  }
}