golang-uuid

uuid第三方库可以在github上找，我在这使用的是：github.com/satori/go.uuid

PS：不知道哪里原因，使用go mod 管理包，下载的包和github上的不是完全一样，也特意看了版本，都是v1.2.0

生成uuid主要函数：

// NewV1 returns UUID based on current timestamp and MAC address.

func NewV1() UUID {

    return global.NewV1()

}

// NewV2 returns DCE Security UUID based on POSIX UID/GID.

func NewV2(domain byte) UUID {

    return global.NewV2(domain)

}

// NewV3 returns UUID based on MD5 hash of namespace UUID and name.

func NewV3(ns UUID, name string) UUID {

    return global.NewV3(ns, name)

}

// NewV4 returns random generated UUID.

func NewV4() UUID {

    return global.NewV4()

}

// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name.

func NewV5(ns UUID, name string) UUID {

    return global.NewV5(ns, name)

}

// Generator provides interface for generating UUIDs.

type Generator interface {

    NewV1() UUID

    NewV2(domain byte) UUID

    NewV3(ns UUID, name string) UUID

    NewV4() UUID

    NewV5(ns UUID, name string) UUID

}

示例：

// Creating UUID Version 4

    u1 := uuid.NewV1()

    fmt.Printf("UUIDv1: %s\n", u1)

    // Parsing UUID from string input 比如url传参，后端得到的是字符串，把字符串解析成UUID类型

    u2, err := uuid.FromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8")

    if err != nil {

        fmt.Printf("Something gone wrong: %s", err)

    }

    fmt.Printf("Successfully parsed: %s", u2)

如果是Linux，有专门生成UUID的命令：uuidgen

import (

    "fmt"

    "log"

    "os/exec"

)

func main() {

    out, err := exec.Command("uuidgen").Output()

    if err != nil {

        log.Fatal(err)

    }

    fmt.Printf("%s", out)

}

uuidgen支持两个参数，-r生成随机uuid，-t生成基于时间的uuid。

out, err := exec.Command("uuidgen", "t").Output()
......

GUID扩展:https://blog.csdn.net/signjing/article/details/69358110

巴特西

golang-uuid

最新文章

热门文章