（转）如何使用toml文件？

问题描述

作为标题，我想知道如何使用golang中的toml文件。

在此之前，我将展示我的toml示例。是不是正确？

  [datatitle] 
 enable = true 
 userids = [
 12345，67890
] 
 [datatitle.12345] 
 prop1 = 30 
 prop2 = 10 
 
 [datatitle.67890] 
 prop1 = 30 
 prop2 = 10 
  

然后，我想将这些数据设置为类型的结构。

结果我想访问下面的子元素。

  datatitle [12345]。prop1 
 datatitle [67890]。prop2 
  

$ p

解决方案

首先获取BurntSushi的toml解析器：

go get github.com/BurntSushi/toml

BurntSushi解析toml并将其映射到结构，这就是你想要的。

然后执行下面的例子并从中学习：

  package main 
 
 import（
github.com/BurntSushi/toml
log
）
 
 var varldData =`title =config
 [feature1] 
 enable = true 
 userids = [
12345，67890
] 
 
 [feature2] 
 enable = false` 
 
 type feature1 struct {
启用bool 
 Userids [] string 
} 
 
 type feature2 struct {
启用bool 
} 
 
类型tomlConfig结构{
标题字符串
 F1 feature1`toml：feature1 `
 F2 feature2`toml：feature2`
} 
 
 func main（）{
 var conf tomlConfig 
 if _，err：= toml解码（tomlData，& conf）; err！= nil {
 log.Fatal（err）
} 
 log.Printf（title：％s，conf.Title）
 log.Printf（Feature 1 ：％＃v，conf.F1）
 log.Printf（Feature 2：％＃v，conf.F2）
} 
  

注意 tomlData 以及它如何映射到 tomlConfig struct。

请参阅

As title, I want to know how to use toml files from golang.

Before that, I show my toml examples. Is it right?

[datatitle]
enable = true
userids = [
    "12345", "67890"
]
    [datatitle.12345]
    prop1 = 30
    prop2 = 10

    [datatitle.67890]
    prop1 = 30
    prop2 = 10

And then, I want to set these data as type of struct.

As a result I want to access child element as below.

datatitle["12345"].prop1
datatitle["67890"].prop2

Thanks in advance!

解决方案

First get BurntSushi's toml parser:

go get github.com/BurntSushi/toml

BurntSushi parses toml and maps it to structs, which is what you want.

Then execute the following example and learn from it:

package main

import (
    "github.com/BurntSushi/toml"
    "log"
)

var tomlData = `title = "config"
[feature1]
enable = true
userids = [
  "12345", "67890"
]

[feature2]
enable = false`

type feature1 struct {
    Enable  bool
    Userids []string
}

type feature2 struct {
    Enable bool
}

type tomlConfig struct {
    Title string
    F1    feature1 `toml:"feature1"`
    F2    feature2 `toml:"feature2"`
}

func main() {
    var conf tomlConfig
    if _, err := toml.Decode(tomlData, &conf); err != nil {
        log.Fatal(err)
    }
    log.Printf("title: %s", conf.Title)
    log.Printf("Feature 1: %#v", conf.F1)
    log.Printf("Feature 2: %#v", conf.F2)
}

Notice the tomlData and how it maps to the tomlConfig struct.

See more examples at https://github.com/BurntSushi/toml

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