我想连接RecoverWrap
到马提尼路线的所有处理程序,以使任何处理程序panic
都由内部的代码完成RecoverWrap
。
我试图这样做,m.Use(RecoverWrap)
但不知道该怎么做,编译失败。
package main
import (
"errors"
"github.com/go-martini/martini"
"net/http"
)
func main() {
m := martini.Classic()
//m.Use(RecoverWrap)
m.Get("/", func() {
panic("some panic")
})
m.Run()
}
func RecoverWrap(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
var err error
defer func() {
r := recover()
if r != nil {
switch t := r.(type) {
case string:
err = errors.New(t)
case error:
err = t
default:
err = errors.New("Unknown error")
}
http.Error(w, "Something goes wrong", http.StatusInternalServerError)
}
}()
h.ServeHTTP(w, req)
})
}