近期在寫 ActivedRouter項目的時候需求一個緩存模型，要求緩存模型支持不同驅動,例如:memory、file、redis、mysql，實現思路代碼如下:

cache.go文件,定義緩存對外接口

//ActivedRouter //Author:usher.yue //Amail:usher.yue@gmail.com //TencentQQ:4223665 //緩存驅動接口定義 //可以自定義擴展驅動類型 默認是 memory driverpackage cacheimport ("./driver" )//cache接口聲明 type Cacher interface {GetStorage() driver.ContainererSet(k string, v interface{})Get(k string) (interface{}, bool)Del(k string)Has(k string) bool }//create memory cache //type "file" or "memory" func Newcache(cacheType string) Cacher {switch cacheType {case "memory":return &driver.CacheImpl{Driver: driver.NewMapContainer()}case "file":{return &driver.CacheImpl{Driver: driver.NewFileContainer()}}case "mysql":{return &driver.CacheImpl{Driver: driver.NewMysqlContainer()}}case "redis":{return &driver.CacheImpl{Driver: driver.NewRedisContainer()}}case "mongodb":{return &driver.CacheImpl{Driver: driver.NewMongoContainer()}}}return nil }

driver.go ?實現驅動,這里我只利用Map實現了，具體其他驅動可自行實現

//ActivedRouter //Author:usher.yue //Amail:usher.yue@gmail.com //TencentQQ:4223665 //緩存驅動接口定義 //可以自定義擴展驅動類型 默認是 memory cachepackage driver//容器接口聲明 type Containerer interface {PushKVPair(k, v interface{}) ContainererEraseKVPair(k interface{}) ContainererPushKVMaps(maps ...map[string]interface{}) ContainererResetKVPair(k string, v interface{}) ContainererResetOrAddKVPair(k string, v interface{}) ContainererResetKVPairs(kvMaps map[string]interface{}) ContainererResetOrAddKVPairs(kvMaps map[string]interface{}) ContainererExist(k interface{}) boolGetData() *map[string]interface{} }//基于內存實現的緩存 type CacheImpl struct {Driver Containerer //數據緩存驅動 }func (self *CacheImpl) Exist(k interface{}) bool {return self.Driver.Exist(k) }func (self *CacheImpl) GetStorage() Containerer {return self.Driver }//set func (self *CacheImpl) Set(k string, v interface{}) {self.Driver.PushKVPair(k, v) }//get func (self *CacheImpl) Get(k string) (interface{}, bool) {mapData := *self.Driver.GetData()val, ok := mapData[k]return val, ok }//erase func (self *CacheImpl) Del(k string) {self.Driver.EraseKVPair(k) }//has func (self *CacheImpl) Has(k string) bool {mapData := *self.Driver.GetData()_, ok := mapData[k]return ok }//Map實現的內存驅動 type MapContainer struct {data map[string]interface{} }//創建數據channer func NewMapContainer() *MapContainer {return &MapContainer{data: make(map[string]interface{})} }func (this *MapContainer) PushKVPair(k, v interface{}) Containerer {if key, ok := k.(string); !ok {panic("key必須是string類型!")} else {this.data[key] = v}return this }func (this *MapContainer) Exist(k interface{}) bool {return true }func (this *MapContainer) EraseKVPair(k interface{}) Containerer {if key, ok := k.(string); !ok {panic("key必須是string類型!")} else {delete(this.data, key)}return this } func (this *MapContainer) PushKVMaps(maps ...map[string]interface{}) Containerer {for _, itemMap := range maps {for itemKey, itemValue := range itemMap {this.PushKVPair(itemKey, itemValue)}}return this } func (this *MapContainer) ResetKVPair(k string, v interface{}) Containerer {if _, ok := this.data[k]; ok {this.data[k] = v}return this } func (this *MapContainer) ResetOrAddKVPair(k string, v interface{}) Containerer {this.data[k] = vreturn this }func (this *MapContainer) ResetKVPairs(kvMaps map[string]interface{}) Containerer {for k, v := range kvMaps {if _, ok := this.data[k]; ok {this.data[k] = v}}return this }func (this *MapContainer) ResetOrAddKVPairs(kvMaps map[string]interface{}) Containerer {for k, v := range kvMaps {this.data[k] = v}return this }func (this *MapContainer) GetData() *map[string]interface{} {return &this.data }

總結

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