Golang：golang-jwt/jwt/v4生成和解析jwt

go get github.com/golang-jwt/jwt/v4

package main
import (
    "fmt"
    "github.com/golang-jwt/jwt/v4"
)
func main() {
    // 秘钥
    secret := []byte("key")
    // 参数
    token := jwt.NewWithClaims(
        jwt.SigningMethodHS256,
        jwt.MapClaims{
            "name": "Tom",
            "age":  20,
        })
    tokenString, _ := token.SignedString(secret)
    fmt.Println(tokenString)
    // eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhZ2UiOjIwLCJuYW1lIjoiVG9tIn0.bU-8W6kUQM55ZT-mviisDnGja2nOmvYXkyWirrFMUf0
}

package main
import (
    "fmt"
    "github.com/golang-jwt/jwt/v4"
)
func main() {
    // 秘钥
    secret := []byte("key")
    tokenString := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhZ2UiOjIwLCJuYW1lIjoiVG9tIn0.bU-8W6kUQM55ZT-mviisDnGja2nOmvYXkyWirrFMUf0"
    token, _ := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
        return secret, nil
    })
    claims, _ := token.Claims.(jwt.MapClaims)
    fmt.Printf("claims: %v\n", claims)
    // claims: map[age:20 name:Tom]
}