我想给自己发电子邮件,但页面上出现错误http://localhost:3000/panic在我们的案例中包含错误url-/panic
。但我不知道如何在RecoverWrap
方法中从c martini.Context
获取url。
package main
import (
"errors"
"github.com/go-martini/martini"
"net/http"
)
func main() {
m := martini.Classic()
m.Use(RecoverWrap)
m.Get("/panic", func() {
panic("some panic")
})
m.Get("/", func(req *http.Request, res http.ResponseWriter) {
res.Write([]byte("mainPage"))
})
m.Run()
}
func RecoverWrap(c martini.Context, w http.ResponseWriter) {
var err error
defer func(w http.ResponseWriter) {
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")
}
// how to get request url here
// I want to send email with error url
http.Error(w, "Something goes wrong", http.StatusInternalServerError)
}
}(w)
c.Next()
}
答案是在func RecoverWrap(c martini.Context, req *http.Request, w http.ResponseWriter)
中添加req *http.Request
参数
完整代码:
package main
import (
"errors"
"fmt"
"github.com/go-martini/martini"
"net/http"
)
func main() {
m := martini.Classic()
m.Use(RecoverWrap)
m.Get("/panic", func() {
panic("some panic")
})
m.Get("/", func(req *http.Request, res http.ResponseWriter) {
res.Write([]byte("mainPage"))
})
m.Run()
}
func RecoverWrap(c martini.Context, req *http.Request, w http.ResponseWriter) {
var err error
defer func(w http.ResponseWriter) {
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")
}
fmt.Println("req.URL.Path")
fmt.Println(req.URL.Path)
http.Error(w, "Something goes wrong", http.StatusInternalServerError)
}
}(w)
c.Next()
}