golang读取toml配置文件

第三方开源库第三方开源库的使用

第三方开源库

github.com/BurntSushi/toml

第三方开源库的使用

主要使用该库的这个函数：

// DecodeFile is just like Decode, except it will automatically read the // contents of the file at `fpath` and decode it for you. func DecodeFile(fpath string, v interface{}) (MetaData, error) { bs, err := ioutil.ReadFile(fpath) if err != nil { return MetaData{}, err } return Decode(string(bs), v) }

该函数功能是从toml文件中读取数据到定义好的结构体中。

官方例子：

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) }

其中读取的toml文件如下：

# This is a TOML document. Boom. 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" ]