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go语言实现的基于内存的key/value的缓存库

 1 year ago
source link: https://studygolang.com/articles/36054
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go-cache

一个基于内存的key/value的go语言存储库，支持string和hash

go get -u github.com/itmisx/go-cache

  • 支持过期回调函数
  • 支持哈希字段的过期时间设置

🏗️ 使用场景

主要用在单机或本地缓存场景

✅ 开始使用

  • 设置键值，不带过期回调
cache.Set("key1", 1, time.Second*4, nil)
  • 设置键值，带过期回调
cache.Set("key1", 1, time.Second*4, func(key string, value interface{}) {
    log.Println("callback1", key, value)
})
  • 设置键的过期时间
cache.Expire("key1",time.Second*4)

// found指示是否存在
value,found := cache.Get("key1")

cache.Del("key1")
  • 设置hash，带过期回调
cache.HSet("hkey1", "hfield1", 1, time.Second*8, func(key string, field string, value interface{}) {
    log.Println("callback2", key, field, value)
})
  • 设置hash字段的过期时间
cache.Expire("hkey1","hfield1",time.Second*3)
  • 获取hash值
// found指示是否存在
value,found := cache.HGet("hkey1","hfield1")
  • 删除hash字段
cache.HDel("hkey1","hfield1")

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