go语言配置文件解析库的使用TOML parser and encoder for Go with reflection

使用go get命令下载 go get github.com/BurntSushi/toml 会下载到你配置gopath/src目录下

TOML 的目标是成为一个极简的配置文件格式。TOML 被设计成可以无歧义地被映射为哈希表，从而被多种语言解析。

go语言中读取配置文件的

title = "TOML Example"

[owner]
name = "Tom Preston-Werner"
organization = "GitHub"
bio = "GitHub Cofounder & CEO\nLikes tater tots and beer."
dob = 1979-05-27T07:32:00Z # First class dates? Why not?

[database]
server = "192.168.1.1"
ports = [ 8001, 8001, 8002 ]
connection_max = 5000
enabled = true

[servers]

  # You can indent as you please. Tabs or spaces. TOML don't care.
  [servers.alpha]
  ip = "10.0.0.1"
  dc = "eqdc10"

  [servers.beta]
  ip = "10.0.0.2"
  dc = "eqdc10"

[clients]
data = [ ["gamma", "delta"], [1, 2] ] 
# just an update to make sure parsers support it

# Line breaks are OK when inside arrays
hosts = [
  "alpha",
  "omega"
]

package main

import (
    "fmt"
    "time"

    "github.com/BurntSushi/toml"
)

type tomlConfig struct {
    Title   string
    Owner   ownerInfo
    DB      database `toml:"database"`
    Servers map[string]server
    Clients clients
}

type ownerInfo struct {
    Name string
    Org  string `toml:"organization"`
    Bio  string
    DOB  time.Time
}

type database struct {
    Server  string
    Ports   []int
    ConnMax int `toml:"connection_max"`
    Enabled bool
}

type server struct {
    IP string
    DC string
}

type clients struct {
    Data  [][]interface{}
    Hosts []string
}

func main() {
    var config tomlConfig
    if _, err := toml.DecodeFile("example.toml", &config); err != nil {
        fmt.Println(err)
        return
    }

    fmt.Printf("Title: %s\n", config.Title)
    fmt.Printf("Owner: %s (%s, %s), Born: %s\n",
        config.Owner.Name, config.Owner.Org, config.Owner.Bio,
        config.Owner.DOB)
    fmt.Printf("Database: %s %v (Max conn. %d), Enabled? %v\n",
        config.DB.Server, config.DB.Ports, config.DB.ConnMax,
        config.DB.Enabled)
    for serverName, server := range config.Servers {
        fmt.Printf("Server: %s (%s, %s)\n", serverName, server.IP, server.DC)
    }
    fmt.Printf("Client data: %v\n", config.Clients.Data)
    fmt.Printf("Client hosts: %v\n", config.Clients.Hosts)
}

data := make(map[string]interface{})
    toml.DecodeFile("example.toml", &data)
    fmt.Println(len(data))

    for key, _ := range data {
        fmt.Println(key)
    }

package main

import (
    "fmt"
    "time"
    //"strings"

    "github.com/BurntSushi/toml"
)

func main() {

    data := make(map[string]interface{})
    toml.DecodeFile("example.toml", &data)
    fmt.Println(len(data))

    for key, val := range data {
        fmt.Println(key)
        fmt.Println(val)
    }

    port := data["database"]
    fmt.Println(port)

}

5
servers
map[alpha:map[ip:10.0.0.1 dc:eqdc10] beta:map[ip:10.0.0.2 dc:eqdc10]]
clients
map[data:[[gamma delta] [1 2]] hosts:[alpha omega]]
title
TOML Example
owner
map[name:Tom Preston-Werner organization:GitHub bio:GitHub Cofounder & CEO
Likes tater tots and beer. dob:1979-05-27 07:32:00 +0000 UTC]
database
map[server:192.168.1.1 ports:[8001 8001 8002] connection_max:5000 enabled:true]
map[ports:[8001 8001 8002] connection_max:5000 enabled:true server:192.168.1.1]