JWT(Json Web Token)
获取Token、解密Token
jwt.go
package jwtimport ("errors""time""github.com/golang-jwt/jwt/v5"
)var jwtSecret = []byte("secret")type CustomClaims struct {Username string `json:"username"`jwt.RegisteredClaims
}func GenToken(username string) (string, error) {claims := CustomClaims{Username: username,RegisteredClaims: jwt.RegisteredClaims{ExpiresAt: jwt.NewNumericDate(time.Now().Add(2 * time.Hour)), // 过期时间IssuedAt: jwt.NewNumericDate(time.Now()), // 签发时间NotBefore: jwt.NewNumericDate(time.Now()), // 生效时间Issuer: "bluebell-app", // 签发人Subject: "user-token", // token主题},}token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)return token.SignedString(jwtSecret)
}func ParseToken(tokenString string) (*CustomClaims, error) {token, err := jwt.ParseWithClaims(tokenString, &CustomClaims{}, func(token *jwt.Token) (interface{}, error) {if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {return nil, errors.New("unexpected signing method")}return jwtSecret, nil})if err != nil {return nil, err}if claims, ok := token.Claims.(*CustomClaims); ok && token.Valid {return claims, nil}return nil, errors.New("invalid token")
}
