发送信息----策略模式

发送信息

发送信息到手机、邮箱等，可扩展

package mainimport ("errors""fmt"
)type PushContext struct {Phone, Email, Message stringTage                  int
}type PaymentStrategy interface {Push(*PushContext)
}func NewPush(phone, email, message string, tage int, strategy PaymentStrategy) *Push {return &Push{Content: &PushContext{Phone:   phone,Email:   email,Message: message,Tage:    tage,},Strategy: strategy,}
}type Push struct {Content  *PushContextStrategy PaymentStrategy
}func (p *Push) Push() {p.Strategy.Push(p.Content)
}//==================================================================================================================type PushPhone struct {Content stringPhone   string
}func (p *PushPhone) Push(ctx *PushContext) {fmt.Printf("发送到手机：Send Message %s to phone %s by cash\n", ctx.Message, ctx.Phone)
}type PushEmail struct {Content stringEmail   string
}func (p *PushEmail) Push(ctx *PushContext) {fmt.Printf("发送到邮箱：Send Message %s to Email %s by cash\n", ctx.Message, ctx.Email)
}var sendMethod = make(map[string]PaymentStrategy)
func init() {sendMethod["PushPhone"] = &PushPhone{}sendMethod["PushEmail"] = &PushEmail{}
}func main() {pushMessage("13301161111", "", "这是发给手机的短信", "PushPhone", 1)pushMessage("", "[e-mail]", "这是发给邮箱的邮件", "PushEmail", 1)}func pushMessage(phone, email, message, sty string, tage int) error {//查询信息，得到phone、email、发送标识等strategy, ok := sendMethod[sty]if !ok {return errors.New("没有这个策略")}payment := NewPush(phone, email, message, tage, strategy)payment.Push()return nil
}