golang标准库对于HttpServer有很好的支持。

import (
	"fmt"
	"log"
	"net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "request from %s\n", r.URL.Path)
}

func main() {
	http.HandleFunc("/", handler)
	log.Fatalln(http.ListenAndServe("localhost:8000", nil))
}

启动以后，使用curl命令来测试

$ curl -i http://localhost:8000/test/foo/bar

后台输出：

request from /test/foo/bar