安装
go get “github.com/dgrijalva/jwt-go”登陆
// Create a new token object, specifying signing method and the claims // you would like it to contain. token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{ "foo": "bar", "nbf": time.Date(2015, 10, 10, 12, 0, 0, 0, time.UTC).Unix(), }) // Sign and get the complete encoded token as a string using the secret tokenString, err := token.SignedString(hmacSampleSecret) fmt.Println(tokenString, err)- 验证
在调用Parse时，会进行加密验证，同时如果提供了exp，会进行过期验证；
如果提供了iat，会进行发行时间验证;如果提供了nbf，会进行发行时间验证．
hmacSampleSecret := []byte("my_secret_key") // sample token string taken from the New example tokenString := "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJuYmYiOjE0NDQ0Nzg0MDB9.u1riaD1rW97opCoAuRCTy4w58Br-Zk-bh7vLiRIsrpU" // Parse takes the token string and a function for looking up the key. The latter is especially // useful if you use multiple keys for your application. The standard is to use 'kid' in the // head of the token to identify which key to use, but the parsed token (head and claims) is provided // to the callback, providing flexibility. token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) { // Don't forget to validate the alg is what you expect: if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok { return nil, fmt.Errorf("Unexpected signing method: %v", token.Header["alg"]) } // hmacSampleSecret is a []byte containing your secret, e.g. []byte("my_secret_key") return hmacSampleSecret, nil }) if claims, ok := token.Claims.(jwt.MapClaims); ok && token.Valid { fmt.Println(claims["foo"], claims["nbf"]) } else { fmt.Println(err) }文章来源: golang jwt验证