一個HTTP中間件：Recover

Recover是一個HTTP中間件，能夠捕捉任何panics并提供一個適當的錯誤響應。

適用于所有框架，支持原生http handler (eg. Echo, Goji).

安裝

$ go get github.com/dre1080/recover

用法

package main

import (
    "log"
    "net/http"

    "github.com/dre1080/recover"
)

var myPanicHandler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    panic("you should not have a handler that just panics ;)")
})

func main() {
    recovery := recover.New(&recover.Options{
        Log: log.Print,
    })

    // recoveryWithDefaults := recovery.New(nil)

    app := recovery(myPanicHandler)
    http.ListenAndServe("0.0.0.0:3000", app)
}

Terminal

HTML

JSON

Echo Example

...
func main() {
    e := echo.New()
    e.Use(recover.New(&recover.Options{
        Log: log.Print,
    }))

    ...

    e.Run(":3000")
}

Goji Example

...
func main() {
    goji.Use(recover.New(&recover.Options{
        Log: log.Print,
    }))

    ...

    goji.Serve()
}

項目主頁：http://www.baiduhome.net/lib/view/home/1443670589267