如何用 Go 编写一个简单的自定义 HTTP 服务器？

我是 Go 新手，正在尝试编写一个自定义 HTTP 服务器。我收到编译错误。我该如何实施ServeHTTP我的代码中的方法？

My Code:

package main

import (
    "net/http"
    "fmt"
    "io"
    "time"
)


func myHandler(w http.ResponseWriter, req *http.Request) {
    io.WriteString(w, "hello, world!\n")
}


func main() {
    // Custom http server
    s := &http.Server{
        Addr:           ":8080",
        Handler:        myHandler,
        ReadTimeout:    10 * time.Second,
        WriteTimeout:   10 * time.Second,
        MaxHeaderBytes: 1 << 20,
    }

    err := s.ListenAndServe()
    if err != nil {
        fmt.Printf("Server failed: ", err.Error())
    }
}

编译时出错：

.\hello.go:21: cannot use myHandler (type func(http.ResponseWriter, *http.Request)) as type http.Handler in field value:
    func(http.ResponseWriter, *http.Request) does not implement http.Handler (missing ServeHTTP method)

您可以使用结构并定义ServeHTTP在它上面或者简单地将你的函数包装在HandlerFunc http://golang.org/pkg/net/http/#HandlerFunc

s := &http.Server{
    Addr:           ":8080",
    Handler:        http.HandlerFunc(myHandler),
    ReadTimeout:    10 * time.Second,
    WriteTimeout:   10 * time.Second,
    MaxHeaderBytes: 1 << 20,
}