包准备
首先安装解析yaml文件的包
go get gopkg.in/yaml.v2但是可能会无法安装成功，报错显示go get unrecognized import path "gopkg.in/yaml.v2"
通过下载编译源代码的方式解决：
再go/src路径下新建一个文件gopkg.in，将代码下载到go/src/gopkg.in下
git config --global http.sslVerify "false"
git config --global http.postBuffer 524288000
go env -w GOPROXY=https://goproxy.cn,direct
git clone https://github.com/go-yaml/yaml.git 或者在https://github.com/go-yaml/yaml上下载zip，解压到该路径下。
之后将yaml的文件名称改为yaml.v2，安装：
cd yaml.v2
go installmain.go
package main
import (
"encoding/json"
"fmt"
"gopkg.in/yaml.v2"
"io/ioutil"
"log"
"os"
)
//Yaml the yaml file Cluster struct
type Yaml struct {
Clusters Clusters `yaml:"clusters"`
}
type Clusters struct {
Services []Services `yaml:"services"`
}
type Services struct {
Name string `yaml:"service_name"`
Ip string `yaml:"ipaddr"`
Username string `yaml:"username"`
Passwd string `yaml:"passwd"`
Ports []Ports `yaml:"ports,omitempty"`
}
type Ports struct{
Port string `yaml:"port"`
Protocol string `yaml:"protocol"`
}
func ReadYamlConfig(path string) (*Yaml,error){
conf := &Yaml{
}
if f, err := os.Open(path); err != nil {
return nil,err
} else {
yaml.NewDecoder(f).Decode(conf)
}
return conf,nil
}
//test yaml
func main() {
conf,err := ReadYamlConfig("cluster.yaml")
if err != nil {
log.Fatal(err)
}
byts,err := json.Marshal(conf)
if err != nil {
log.Fatal(err)
}
fmt.Println(string(byts))
cyts,err := yaml.Marshal(conf)
if err != nil {
log.Fatal(err)
}
t := Yaml{
}
err = yaml.Unmarshal([]byte(cyts), &t)
if err != nil {
log.Fatal(err)
}
fmt.Println(t)
//
cluster := new(Yaml)
yamlFile, err := ioutil.ReadFile("cluster.yaml")
if err != nil {
log.Println(err)
}
err = yaml.Unmarshal(yamlFile, &cluster)
if err != nil {
log.Println(err)
}
fmt.Println(cluster)
//log.Println("conf", cluster)
fmt.Println(cluster.Clusters.Services[1].Ports[0].Port)
}cluster.yaml
clusters:
services:
- service_name: test1
ipaddr: 192.168.1.12
username: root
passwd: zzs
- service_name: test2
ipaddr: 192.168.1.13
username: root
passwd: eve
ports:
- port: 48888
protocol: TCPoutput
{
"Clusters":{
"Services":[{
"Name":"test1","Ip":"192.168.1.12","Username":"root","Passwd":"zzs","Ports":null},{
"Name":"test2","Ip":"192.168.1.13","Username":"root","Passwd":"eve","Ports":[{
"Port":"48888","Protocol":"TCP"}]}]}}
{
{
[{
test1 192.168.1.12 root zzs []} {
test2 192.168.1.13 root eve [{
48888 TCP}]}]}}
&{
{
[{
test1 192.168.1.12 root zzs []} {
test2 192.168.1.13 root eve [{
48888 TCP}]}]}}
48888