在k8s中启动的httpserver都使用了go-restful，简单学习下

主要有webservice  router container几个概念

参考了官方的例子：https://github.com/emicklei/go-restful/blob/master/examples/restful-user-resource.go

package main

import (
	"github.com/emicklei/go-restful"
	"io"
	"log"
	"net/http"
)

func main() {
	var u UserResource
	container := restful.NewContainer()
	u.Register(container)
	//创建httpserver，监听8080，指定handler
	server := &http.Server{Addr: ":8080", Handler: container}
	log.Fatal(server.ListenAndServe())

}

type UserResource struct {
}

func (self UserResource) Register(container *restful.Container) {
	// 创建webservice
	ws := new(restful.WebService)
	//指定路径以及支持的媒体类型
	ws.Path("/users").
		Consumes(restful.MIME_JSON, restful.MIME_XML).
		Produces(restful.MIME_JSON, restful.MIME_XML)
	ws.Route(ws.GET("/{user-id}").To(self.findUser))
	//创建container 不创建则使用restful.Add添加到DefaultContainer
	container.Add(ws)
}

func (u UserResource) findUser(request *restful.Request, response *restful.Response) {
	id := request.PathParameter("user-id")
	io.WriteString(response, id)
}