golang软件包列表
| 软件包 |
样例 |
格式 |
| ksuid |
0pPKHjWprnVxGH7dEsAoXX2YQvU |
4 bytes of time (seconds) + 16 random bytes |
| xid |
b50vl5e54p1000fo3gh0 |
4 bytes of time (seconds) + 3 byte machine id + 2 byte process id + 3 bytes random |
| betterguid |
-N-35bz_wVbhxzTZD2wO |
8 bytes of time (milliseconds) + 9 random bytes |
| sonyflake |
402329004549341446 |
~6 bytes of time (10 ms) + 1 byte sequence + 2 bytes machine id |
| snowflake |
1512052461246971904 |
1 Bit Unused + 41 Bit Timestamp + 10 Bit NodeID + 12 Bit Sequence ID |
| snowflake |
1512052461246971904 |
1 Bit Unused + 41 Bit Timestamp + 10 Bit NodeID + 12 Bit Sequence ID |
| ulid |
01BJMVNPBBZC3E36FJTGVF0C4S |
6 bytes of time (milliseconds) + 8 bytes random |
| sid |
1JADkqpWxPx-4qaWY47~FqI |
8 bytes of time (ns) + 8 random bytes |
| shortuuid |
dwRQAc68PhHQh4BUnrNsoS |
UUIDv4 or v5, encoded in a more compact way |
| go.uuid |
5b52d72c-82b3-4f8e-beb5-437a974842c |
UUIDv4 from RFC 4112 for comparison |
| google.uuid |
dd5f48eb-1722-4e5f-9d56-dcaf0aae1026 |
UUIDv4 |
| bomberman.uuid |
330806cf-684c-43f7-85aa-79939ed3415d |
UUIDv4 |
| MongoDB ObjectID |
624ee0fb37583f00042dc309 |
4-byte timestamp + 5-byte random value + 3-byte incrementing counter |
代码
package main
import (
"fmt"
"log"
"math/rand"
"time"
"github.com/bwmarrin/snowflake"
"github.com/chilts/sid"
goSnowflake "github.com/godruoyi/go-snowflake"
guuid "github.com/google/uuid"
"github.com/kjk/betterguid"
"github.com/lithammer/shortuuid"
"github.com/oklog/ulid"
pborman "github.com/pborman/uuid"
"github.com/rs/xid"
goUUID "github.com/satori/go.uuid"
"github.com/segmentio/ksuid"
"github.com/sony/sonyflake"
"go.mongodb.org/mongo-driver/bson/primitive"
)
func genShortUUID() {
id := shortuuid.New()
fmt.Printf("github.com/lithammer/shortuuid: %s\n", id)
}
func genXid() {
id := xid.New()
fmt.Printf("github.com/rs/xid: %s\n", id.String())
}
func genKsuid() {
id := ksuid.New()
fmt.Printf("github.com/segmentio/ksuid: %s\n", id.String())
}
func genBetterGUID() {
id := betterguid.New()
fmt.Printf("github.com/kjk/betterguid: %s\n", id)
}
func genUlid() {
t := time.Now().UTC()
entropy := rand.New(rand.NewSource(t.UnixNano()))
id := ulid.MustNew(ulid.Timestamp(t), entropy)
fmt.Printf("github.com/oklog/ulid: %s\n", id.String())
}
func genSonyflake() {
flake := sonyflake.NewSonyflake(sonyflake.Settings{})
id, err := flake.NextID()
if err != nil {
log.Fatalf("flake.NextID() failed with %s\n", err)
}
// Note: this is base16, could shorten by encoding as base62 string
fmt.Printf("github.com/sony/sonyflake: %d\n", id)
}
func genSnowflake() {
nodeId := rand.Int63() % 1023
node, err := snowflake.NewNode(nodeId)
if err != nil {
log.Fatalf("snowflake.NewNode() failed with %s\n", err)
}
id := node.Generate().Int64()
fmt.Printf("github.com/bwmarrin/snowflake: %d\n", id)
}
func genGoSnowflake() {
id := goSnowflake.ID()
fmt.Printf("github.com/godruoyi/go-snowflake: %d\n", id)
}
func genSid() {
id := sid.Id()
fmt.Printf("github.com/chilts/sid: %s\n", id)
}
func genUUIDv4() {
id := goUUID.NewV4()
fmt.Printf("github.com/satori/go.uuid: %s\n", id)
}
func genUUID() {
id := guuid.New()
fmt.Printf("github.com/google/uuid: %s\n", id.String())
}
func genPbormanUUID() {
id := pborman.NewRandom()
fmt.Printf("github.com/pborman/uuid: %s\n", id.String())
}
func genMongoDBObjectID() {
id := primitive.NewObjectID()
fmt.Printf("go.mongodb.org/mongo-driver/bson/primitive: %s\n", id.Hex())
}
func main() {
genXid()
genKsuid()
genBetterGUID()
genUlid()
genSonyflake()
genSnowflake()
genGoSnowflake()
genSid()
genShortUUID()
genUUIDv4()
genUUID()
genPbormanUUID()
genMongoDBObjectID()
}
参考资料
