Gcache
gcache是gorm的中间件,插入后gorm即刻拥有缓存。
Install / Use
/learn @8treenet/GcacheREADME
gcache
gcache是gorm的中间件,插入后gorm即刻拥有缓存。
Overview
- 即插即用
- 旁路缓存
- 数据源使用 Redis
- 防击穿
- 防穿透
安装
$ go get github.com/8treenet/gcache
快速使用
import (
"github.com/8treenet/gcache"
"github.com/jinzhu/gorm"
"github.com/8treenet/gcache/option""
)
func init() {
//创建 gorm.DB
db, _ = gorm.Open("mysql", "")
opt := option.DefaultOption{}
opt.Expires = 300 //缓存时间, 默认120秒。范围30-43200
opt.Level = option.LevelSearch //缓存级别,默认LevelSearch。LevelDisable:关闭缓存,LevelModel:模型缓存, LevelSearch:查询缓存
opt.AsyncWrite = false //异步缓存更新, 默认false。 insert update delete 成功后是否异步更新缓存。 ps: affected如果未0,不触发更新。
opt.PenetrationSafe = false //开启防穿透, 默认false。 ps:防击穿强制全局开启。
//缓存中间件附加到gorm.DB
gcache.AttachDB(db, &opt, &option.RedisOption{Addr:"localhost:6379"})
}
约定
- 模型必须指明主键
gorm:"primary_key" - 不支持 Group
- 不支持 Having
- 查询条件和查询参数分离
Example
#查看 example_test.go 了解更多。
more src/github.com/8treenet/gcache/example/example_test.go
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