Go --- toml配置文件使用-Toy模板网

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我们常见的一些配置文件包括，yaml、xml、toml、json和ini。

今天我们就来介绍这个toml配置文件，在go语言中的使用。

注：我选择toml的原因是toml配置简单，注释方便，读取方便。

包介绍

toml（Tom’s Obvious， Minimal Language），简约又明显的语言。

使用的包是

github.com/BurntSushi/toml

安装该包

go get github.com/BurntSushi/toml@latest

使用列子

我们一般将配置文件中的字段映射到结构体中，这也方便了使用者的使用过程。

简单例子

test.toml文件

Name = "张三"
Age = 18
Money = 1.2
Hobby = ["打游戏","去医院疗伤"]
Birthday = 2023-01-05

toml_test.go

package test

import (
   "fmt"
   "github.com/BurntSushi/toml"
   "os"
   "testing"
   "time"
)

type Config struct {
   Name     string
   Age      int
   Money    float64
   Hobby    []string
   Birthday time.Time
}

func TestToml1(t *testing.T) {
   f := "../conf/test.toml"
   if _, err := os.Stat(f); err != nil {
      panic(err)
   }
   var conf Config

   if _, err := toml.DecodeFile(f, &conf); err != nil {
      panic(err)
   }

   fmt.Printf("Name: %v\n", conf.Name)
   fmt.Printf("Age: %v\n", conf.Age)
   fmt.Printf("Money: %v\n\r", conf.Money)
   fmt.Printf("Hobby: %v\n\r", conf.Hobby)
   fmt.Printf("Birthday: %v\n\r", conf.Birthday)
}

输出

Name: 张三
Age: 18
Money: 1.2
Hobby: [打游戏去医院疗伤]
Birthday: 2023-01-05 00:00:00 +0800 CST

对象数组

test.toml

distros = [
    {name = "Arch Linux", packages = "pacman"},
    {name = "Void Linux", packages = "xbps"},
    {name = "Debian",     packages = "apt"},
]

toml_test.go

package test

import (
   "fmt"
   "github.com/BurntSushi/toml"
   "os"
   "testing"
   "time"
)

type (
   example struct {
      Distros []distro
   }
   distro struct {
      Name string
      Pkg  string `toml:"Packages"`
   }
)


var f = "../conf/test.toml"

// 对象数组
func TestToml2(t *testing.T) {
   if _, err := os.Stat(f); err != nil {
      panic(err)
   }
   var conf example

   if _, err := toml.DecodeFile(f, &conf); err != nil {
      panic(err)
   }
   fmt.Println(conf)
}

map映射

test.toml

## test1
#Name = "张三"
#Age = 18
#Money = 1.2
#Hobby = ["打游戏","去医院疗伤"]
#Birthday = 2023-01-05

#test2

distros = [
    {name = "Arch Linux", packages = "pacman"},
    {name = "Void Linux", packages = "xbps"},
    {name = "Debian",     packages = "apt"},
]

[[characters.star-trek]]
name = "James Kirk"
rank = "Captain"
[[characters.star-trek]]
name = "Spock"
rank = "Science officer"

toml_test.go

package test

import (
   "fmt"
   "github.com/BurntSushi/toml"
   "os"
   "testing"
   "time"
)

type (
   example struct {
      Distros    []distro
      Characters map[string][]struct {
         Name string
         Rank string
      }
   }
   distro struct {
      Name string
      Pkg  string `toml:"Packages"`
   }
)

var f = "../conf/test.toml"

// map映射
func TestToml3(t *testing.T) {
   if _, err := os.Stat(f); err != nil {
      panic(err)
   }
   var conf example

   if _, err := toml.DecodeFile(f, &conf); err != nil {
      panic(err)
   }
   fmt.Println(conf)
}