go-jwt生成token

JWT生成token

package util

import (
        "time"

        jwt "github.com/dgrijalva/jwt-go"

        "github.com/EDDYCJY/go-gin-example/pkg/setting"
)

var jwtSecret = []byte(setting.JwtSecret)

type Claims struct {
        Username string `json:"username"`
        Password string `json:"password"`
        jwt.StandardClaims
}

func GenerateToken(username, password string) (string, error) {
        nowTime := time.Now()
        expireTime := nowTime.Add(3 * time.Hour)

        claims := Claims{
                username,
                password,
                jwt.StandardClaims {
                        ExpiresAt : expireTime.Unix(),
                        Issuer : "gin-blog",
                },
        }

        tokenClaims := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
        token, err := tokenClaims.SignedString(jwtSecret)

        return token, err
}

func ParseToken(token string) (*Claims, error) {
        tokenClaims, err := jwt.ParseWithClaims(token, &Claims{}, func(token *jwt.Token) (interface{}, error) {
                return jwtSecret, nil
        })

        if tokenClaims != nil {
                if claims, ok := tokenClaims.Claims.(*Claims); ok && tokenClaims.Valid {
                        return claims, nil
                }
        }

        return nil, err
}