golang的json操作

package main

import (
    "encoding/json"
    "fmt"
    "os"
)

type ConfigStruct struct {
    Host              string   `json:"host"`
    Port              int      `json:"port"`
    AnalyticsFile     string   `json:"analytics_file"`
    StaticFileVersion int      `json:"static_file_version"`
    StaticDir         string   `json:"static_dir"`
    TemplatesDir      string   `json:"templates_dir"`
    SerTcpSocketHost  string   `json:"serTcpSocketHost"`
    SerTcpSocketPort  int      `json:"serTcpSocketPort"`
    Fruits            []string `json:"fruits"`
}

type Other struct {
    SerTcpSocketHost string   `json:"serTcpSocketHost"`
    SerTcpSocketPort int      `json:"serTcpSocketPort"`
    Fruits           []string `json:"fruits"`
}

func main() {
    jsonStr := `{"host": "http://localhost:9090","port": 9090,"analytics_file": "","static_file_version": 1,"static_dir": "E:/Project/goTest/src/","templates_dir": "E:/Project/goTest/src/templates/","serTcpSocketHost": ":12340","serTcpSocketPort": 12340,"fruits": ["apple", "peach"]}`

    //json str 转map
    var dat map[string]interface{}
    if err := json.Unmarshal([]byte(jsonStr), &dat); err == nil {
        fmt.Println("==============json str 转map=======================")
        fmt.Println(dat)
        fmt.Println(dat["host"])
    }

    //json str 转struct
    var config ConfigStruct
    if err := json.Unmarshal([]byte(jsonStr), &config); err == nil {
        fmt.Println("================json str 转struct==")
        fmt.Println(config)
        fmt.Println(config.Host)
    }

    //json str 转struct(部份字段)
    var part Other
    if err := json.Unmarshal([]byte(jsonStr), &part); err == nil {
        fmt.Println("================json str 转struct==")
        fmt.Println(part)
        fmt.Println(part.SerTcpSocketPort)
    }

    //struct 到json str
    if b, err := json.Marshal(config); err == nil {
        fmt.Println("================struct 到json str==")
        fmt.Println(string(b))
    }

    //map 到json str
    fmt.Println("================map 到json str=====================")
    enc := json.NewEncoder(os.Stdout)
    enc.Encode(dat)

    //array 到 json str
    arr := []string{"hello", "apple", "python", "golang", "base", "peach", "pear"}
    lang, err := json.Marshal(arr)
    if err == nil {
        fmt.Println("================array 到 json str==")
        fmt.Println(string(lang))
    }

    //json 到 []string
    var wo []string
    if err := json.Unmarshal(lang, &wo); err == nil {
        fmt.Println("================json 到 []string==")
        fmt.Println(wo)
    }
}

//go post方式提交
//导入："net/http" "crypto/tls"

//调用片段：

////machineArry
    jsonMachine, err := json.Marshal(machineArry)
    if err == nil {
        fmt.Println("================array 到 json str==")
        fmt.Println(string(jsonMachine))
    }

    //?link_token="+token_updatemachine
    token_updatemachine :=beego.AppConfig.String("token_updatemachine")

    mappara :=map[string]interface{}{}
    mappara["updateJson"]=string(jsonMachine)
    mappara["link_token"]=token_updatemachine
    masterUrl222 := beego.AppConfig.String("masterUrl")

    url222 := masterUrl222+"/cmdb/cmdbapi/updatemachine"
    resmap :=this.HttpSendByJsonPost(url222,mappara)

    if resmap.(map[string]interface{})["code"].(string) =="000" {
        return  updatemap
    }else{

        updatemap["_code"] = "1"
        updatemap["_msg"] = resmap.(map[string]interface{})["result"]

        return updatemap

    }

func (this *BaseController) HttpSendByJsonPost(url string,formData map[string]interface{}) interface{} {
    req := httplib.Post(url)
    req.SetTransport(&http.Transport{DisableKeepAlives: true})
    for k, v := range formData {
        req.Param(k, v.(string))
    }
    req.SetTLSClientConfig(&tls.Config{InsecureSkipVerify: true})
    //req.Header("user", user)
    //req.Header("role", role)
    //req.SetHost()
    var result interface{}
    req.ToJson(&result)

    fmt.Println("resultresultresultresultresult:--------------->>>>>>>",result)
    return result
}