125 lines
2.0 KiB
Go
125 lines
2.0 KiB
Go
package cache
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import (
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"time"
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"github.com/garyburd/redigo/redis"
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. "go.hoteas.com/hotime"
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"strings"
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)
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type CacheRedis struct {
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Host string
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Pwd string
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Time int64
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conn redis.Conn
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tag int64
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Error
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}
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//唯一标志
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func (this *CacheRedis) GetTag() int64 {
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if this.tag == int64(0) {
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this.tag = time.Now().UnixNano()
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}
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return this.tag
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}
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func (this *CacheRedis) reCon()bool{
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var err error
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this.conn,err=redis.Dial("tcp",this.Host)
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if err!=nil{
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this.conn=nil
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this.Error.SetError(err)
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return false
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}
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_,err=this.conn.Do("AUTH",this.Pwd)
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if err!=nil{
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this.conn=nil
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this.Error.SetError(err)
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return false
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}
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return true
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}
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func (this *CacheRedis) Cache(key string, data ...interface{}) *Obj {
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reData:= &Obj{}
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var err error
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if this.conn==nil{
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re:=this.reCon()
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if !re{
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return reData
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}
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}
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//查询缓存
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if len(data) == 0 {
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reData.Data, err = redis.String(this.conn.Do("GET", key))
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if err != nil {
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reData.Data=nil
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if !strings.Contains(err.Error(), "nil returned") {
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this.Error.SetError(err)
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_, err = this.conn.Do("PING")
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if err != nil {
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if this.reCon() {
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reData.Data, err = redis.String(this.conn.Do("GET", key))
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}
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}
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return reData
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}
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}
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return reData
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}
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tim := int64(0)
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//删除缓存
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if len(data) == 1 && data[0] == nil {
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_,err=this.conn.Do("DEL",key)
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if err!=nil{
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this.Error.SetError(err)
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_,err=this.conn.Do("PING")
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if err!=nil{
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if this.reCon(){
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_,err=this.conn.Do("DEL",key)
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}
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}
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}
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return reData
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}
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//添加缓存
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if len(data) == 1 {
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if this.Time == 0 {
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this.Time = Config.GetInt64("cacheShortTime")
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}
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tim += this.Time
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}
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if len(data) == 2 {
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this.Error.SetError(nil)
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tempt := ObjToInt64(data[1], &this.Error)
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if this.GetError() == nil {
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tim = tim + tempt
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}
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}
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_,err=this.conn.Do("SET",key,ObjToStr(data[0]),"EX",ObjToStr(tim))
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if err!=nil{
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this.Error.SetError(err)
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_,err=this.conn.Do("PING")
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if err!=nil{
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if this.reCon(){
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_,err=this.conn.Do("SET",key,ObjToStr(data[0]),"EX",ObjToStr(tim))
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}
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}
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}
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return reData
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}
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