近期在写 ActivedRouter项目的时候需求一个缓存模型，要求缓存模型支持不同驱动,例如:memory、file、redis、MysqL，实现思路代码如下:

cache.go文件,定义缓存对外接口

//ActivedRouter
//Author:usher.yue
//Amail:usher.yue@gmail.com
//TencentQQ:4223665
//缓存驱动接口定义
//可以自定义扩展驱动类型 默认是 memory driver

package cache

import (
	"./driver"
)

//cache接口声明
type Cacher interface {
	GetStorage() driver.Containerer
	Set(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 实现驱动,这里我只利用Map实现了，具体其他驱动可自行实现

@H_301_29@//ActivedRouter //Author:usher.yue //Amail:usher.yue@gmail.com //TencentQQ:4223665 //缓存驱动接口定义 //可以自定义扩展驱动类型 默认是 memory cache package driver //容器接口声明 type Containerer interface { PushKVPair(k,v interface{}) Containerer EraseKVPair(k interface{}) Containerer PushKVMaps(maps ...map[string]interface{}) Containerer ResetKVPair(k string,v interface{}) Containerer ResetOrAddKVPair(k string,v interface{}) Containerer ResetKVPairs(kvMaps map[string]interface{}) Containerer ResetOrAddKVPairs(kvMaps map[string]interface{}) Containerer Exist(k interface{}) bool GetData() *map[string]interface{} } //基于内存实现的缓存 type CacheImpl struct { Driver Containerer //数据缓存驱动 } 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实现的内存驱动 type MapContainer struct { data map[string]interface{} } //创建数据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必须是string类型!") } 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必须是string类型!") } 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] = v return 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 }