httpserver实现简单的上下文

package main

import (
    "net/http"

    "com.jtthink.net/myhttpserver/core"
)

type MyHandler struct {

}
func(*MyHandler) ServeHTTP(writer http.ResponseWriter, request *http.Request){

     writer.Write([]byte("hello,myhandler"))
}

func main()  {

     router:=core.DefaultRouter()

    router.Get("/", func(ctx *core.MyContext) {
        ctx.WriteString("my string GET")
    })
    router.Post("/", func(ctx *core.MyContext) {
        ctx.WriteString("my string POST")
    })

    http.ListenAndServe(":8099",router)





}

package core

import (
    "net/http"
)
type MyHandlerFunc func(ctx *MyContext)
type MyRouter struct {
     Mapping map[string]map[string]MyHandlerFunc
     Ctx *MyContext
}

func DefaultRouter() *MyRouter {
    return &MyRouter{make(map[string]map[string]MyHandlerFunc),&MyContext{}}
}
func(this *MyRouter) Get(path string,f MyHandlerFunc)  {
    if this.Mapping["GET"]==nil{
        this.Mapping["GET"]=make(map[string]MyHandlerFunc)
    }
    this.Mapping["GET"][path]=f
}
func(this *MyRouter) Post(path string,f MyHandlerFunc)  {
    if this.Mapping["POST"]==nil{
        this.Mapping["POST"]=make(map[string]MyHandlerFunc)
    }
    this.Mapping["POST"][path]=f
}


func(this *MyRouter) ServeHTTP(writer http.ResponseWriter, request *http.Request){

    this.Ctx.request=request
    this.Ctx.ResponseWriter=writer

    //chrome 会默认请求图标地址
     if f,OK:=this.Mapping[request.Method][request.URL.Path];OK{
         f(this.Ctx)
     }



}

package core

import "net/http"

type MyContext struct { //上下文对象
      request *http.Request
      http.ResponseWriter
}
func(this *MyContext) WriteString(str string){
    this.Write([]byte(str))
}