mime.go

package manager

import (

    "mime"

    "path"

)

//初始化数据

func init() {

    if mime.TypeByExtension(".txt") == "" {

        panic("mime.types not found")

    }

}

//获取文件扩展名对应的媒体（内容）类型

func get_content_type(filepath string) string {

    content_type := "application/octet-stream"

    ext := path.Ext(filepath)

    if ext != "" && ext != "." {

        content_type_ := mime.TypeByExtension(ext)

        if content_type_ != "" {

            content_type = content_type_

        }

    }

    return content_type

}