Jwt-go创建Token验证Token

token 设置

go get github.com/dgrijalva/jwt-go

设置jwt 函数

package common
import (
	"demoGin/model"
	"github.com/dgrijalva/jwt-go"
	"time"
)

var jwtkey = []byte("jwttoken")

var myconnecttoken = "token:mytoken"

type jwtModel struct {
	UserId uint
	jwt.StandardClaims
}

/*
@设置token jwt
*/
func ReleaseToken(user model.User)(string,error) {
	outtime :=time.Now().Add(7*24*time.Hour)
	jwtclaims :=jwtModel{
		UserId:         user.ID,
		StandardClaims: jwt.StandardClaims{
			ExpiresAt:outtime.Unix(),
			IssuedAt:time.Now().Unix(),
			Subject:myconnecttoken,
		},
	}
	token :=jwt.NewWithClaims(jwt.SigningMethodHS256,jwtclaims)
	tokenStrng,err :=token.SignedString(jwtkey)
	if err !=nil{
		return "",err
	}
	return tokenStrng,err
}
/*
@解析token
*/
func ParseToken(tokenString string)(*jwt.Token, *jwtModel,error){
	jwtClaims := &jwtModel{}
	token,err :=jwt.ParseWithClaims(tokenString,jwtClaims, func(token *jwt.Token) (i interface{}, e error) {
		return jwtkey,nil
	})
	return token,jwtClaims,err
}

中间件处理使用jwt-go

/*
@接收token
*/
tokenString := ctx.GetHeader("Authorization")

/*
@token中会默认加上Bearer 和空格这七个字节
*/
if tokenString =="" || !strings.HasPrefix(tokenString,"Bearer "){
   response.Respose(ctx,http.StatusUnprocessableEntity,422,nil,"权限不足1")
   ctx.Abort()
   return
}
tokenString = tokenString[7:]
/*
@解析token
*/
token,claims,err :=common.ParseToken(tokenString)
if err != nil{
   response.Respose(ctx,http.StatusUnprocessableEntity,422,nil,"权限不足2")
   ctx.Abort()
   return
}