GO1.5标准包http.FileServer的拔高用法.

import (
    "fmt"
    "net/http"
)
func main() {
    h := http.FileServer(http.Dir("./"))
    http.ListenAndServe(":1789", ce(h))
}
func ce(h http.Handler) http.Handler {
    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
        fmt.Println(r.URL.Path)
        h.ServeHTTP(w, r)
    })
}

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