Golang JWT 示例
Demo
.env
SECRET_KEY=secret_key
main.go
package main
import (
"os"
"fmt"
"time"
"github.com/joho/godotenv"
"github.com/dgrijalva/jwt-go"
)
func init() {
// loads values from .env into the system
if err := godotenv.Load(); err != nil {
fmt.Print("No .env file found")
}
}
func main() {
SecretString, exists := os.LookupEnv("SECRET_KEY")
if !exists {
return
}
fmt.Println(SecretString)
Secret := []byte(SecretString)
type MyCustomClaims struct {
ID int `json:"id"`
jwt.StandardClaims
}
// Create the Claims
claims := MyCustomClaims{
10012,
jwt.StandardClaims{
ExpiresAt: time.Time.AddDate(time.Now(),0, 0, 7).Unix(),
Issuer: "localhost",
},
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
ss, err := token.SignedString(Secret)
fmt.Printf("%v %v", ss, err)
}
parse.go
package main
import (
"fmt"
"os"
"github.com/joho/godotenv"
"github.com/dgrijalva/jwt-go"
)
func init() {
// loads values from .env into the system
if err := godotenv.Load(); err != nil {
fmt.Print("No .env file found")
}
}
func main() {
tokenString := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6MTAwMTIsImV4cCI6MTU3NTYzMzE2MCwiaXNzIjoibG9jYWxob3N0In0.tl0obbcF9me3LALR-3uCYuGSFcxK7kXRoFXGz4dj1fk"
SecretString, exists := os.LookupEnv("SECRET_KEY")
if !exists {
return
}
fmt.Println(SecretString)
Secret := []byte(SecretString)
type MyCustomClaims struct {
ID int `json:"id"`
jwt.StandardClaims
}
token, err := jwt.ParseWithClaims(tokenString, &MyCustomClaims{}, func(token *jwt.Token) (interface{}, error) {
return Secret, nil
})
if claims, ok := token.Claims.(*MyCustomClaims); ok && token.Valid {
fmt.Println(claims.ID, claims.StandardClaims.ExpiresAt)
} else {
fmt.Println(err)
}
}
Run
$ go run main.go
> secret_key
> eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6MTAwMTIsImV4cCI6MTU3NTYzMzE2MCwiaXNzIjoibG9jYWxob3N0In0.tl0obbcF9me3LALR-3uCYuGSFcxK7kXRoFXGz4dj1fk <nil>%
$ go run parse.go
> secret_key
> 10012 1575633160