GoLang打印结构中变量的值

GoLang print value of variables in structure

我不是 GoLang 专家,但我需要 运行 对项目进行故障排除。 现在我尝试打印相同变量的值,但我收到的输出是地址而不是值:

attrs := core.Attributes{}
    err = rtrV1.SetAttributesStruct(&attrs, sessAttrs, session.NasIP, ipv4Session, ipv6Session)
    if err1, ok := err.(core.SessionNotFoundError); ok {
        apiH.Logger.Info(err1.Error())
        c.JSON(404, gin.H{"message": err.Error()})
        return
    } else if err != nil {
        apiH.Logger.Error(err.Error())
        c.JSON(500, gin.H{"message": "internal error"})
        return
    }

    err = core.MakeNASProxyRequest(apiH.HttpClient, nasproxyHost, nasproxyPort, authToken, attrs)

    debugAttrs := fmt.Sprintf("%+p", attrs)
    debugAttrs2 := fmt.Sprintf("%+v", attrs)    
    apiH.Logger.Info("attrs:"+" "+debugAttrs, log.Field("type", "serve-request"))
    apiH.Logger.Info("attr2:"+" "+debugAttrs2, log.Field("type", "serve-request"))

我需要打印 attrs 但我收到此输出:

"msg":"attrs: %!p(core.Attributes={+0xc000420460 <nil> <nil> +0xc000238c60 <nil> <nil> <nil> <nil> +0xc000238c98 <nil> <nil> <nil> <nil>})"
"msg":"attr2: {NASIPAddress:0xc000420460 NASIdentifier:<nil> NASIPv6Address:<nil> Username:0xc000238c60 NASPort:<nil> FramedIPAddress:<nil> CalledStationID:<nil> CallingStationID:<nil> AcctSessionID:0xc000238c98 AcctMultiSessionID:<nil> NASPortID:<nil> FramedInterfaceID:<nil> FramedIPv6Prefix:<nil>}"

如何打印值? 感谢帮助

你可以使用deep pretty打印机。导入:github.com/davecgh/go-spew/spew

示例:

spew.Dump(attrs)

您可以使用 fmt 包或 JSON 封送处理来打印结构值... 例如

import "fmt"

type Person struct {
    FirstName string
}

func main() {
    p := &Person{"mr1"}
    fmt.Printf("%+v", p)
}

import (
    "encoding/json"
    "fmt"
)

type Person struct {
    FirstName string
}

func main() {
    p := &Person{"mr1"}
    s, _ := json.Marshal(p)
    fmt.Printf("%s\n", s)
}