go gin+token验证是怎么实现登陆验证

本篇文章为大家展示了go gin+token验证是怎么实现登陆验证，内容简明扼要并且容易理解，绝对能使你眼前一亮，通过这篇文章的详细介绍希望你能有所收获。

1.准备

go get github.com/dgrijalva/jwt-gogo get github.com/gin-gonic/gin

2.代码

package main import (        "errors"        "fmt"        "github.com/dgrijalva/jwt-go"        "github.com/gin-gonic/gin"        "net/http"        "time") func main() {        r := gin.Default()        r.GET("/login/:username/:password", login)        r.GET("/verify/:token", verify)        r.GET("/refresh/:token", refresh)        r.GET("/sayHello/:token", sayHello)        r.Run(":9090")         //http://localhost:9090/login/dong/123456        //http://localhost:9090/verify/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1NjA1MTIyMTAsImlhdCI6MTU2MDUwODYxMCwidXNlcl9pZCI6MSwicGFzc3dvcmQiOiIxMjM0NTYiLCJ1c2VybmFtZSI6ImRvbmciLCJmdWxsX25hbWUiOiJkb25nIiwicGVybWlzc2lvbnMiOltdfQ.Esh2Zge0vO1BAW1GeR5wurWP3H1jUIaMf3tcSaUwkzA        //http://localhost:9090/refresh/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE1NjA1MTIyNDMsImlhdCI6MTU2MDUwODYxMCwidXNlcl9pZCI6MSwicGFzc3dvcmQiOiIxMjM0NTYiLCJ1c2VybmFtZSI6ImRvbmciLCJmdWxsX25hbWUiOiJkb25nIiwicGVybWlzc2lvbnMiOltdfQ.Xkb_J8MWXkwGUcBF9bpp2Ccxp8nFPtRzFzOBeboHmg0} const(        ErrorReason_ServerBusy = "服务器繁忙"        ErrorReason_ReLogin = "请重新登陆") func sayHello(c *gin.Context) {        strToken := c.Param("token")        claim,err := verifyAction(strToken)        if err != nil {                c.String(http.StatusNotFound, err.Error())                return        }        c.String(http.StatusOK, "hello,",claim.Username)} type JWTClaims struct { // token里面添加用户信息，验证token后可能会用到用户信息        jwt.StandardClaims        UserID      int      `json:"user_id"`        Password    string   `json:"password"`        Username    string   `json:"username"`        FullName    string   `json:"full_name"`        Permissions []string `json:"permissions"`} var (        Secret     = "dong_tech" // 加盐        ExpireTime = 3600        // token有效期) func login(c *gin.Context) {        username := c.Param("username")        password := c.Param("password")        claims := &JWTClaims{                UserID:      1,                Username:    username,                Password:    password,                FullName:    username,                Permissions: []string{},        }        claims.IssuedAt = time.Now().Unix()        claims.ExpiresAt = time.Now().Add(time.Second * time.Duration(ExpireTime)).Unix()        signedToken,err:=getToken(claims)        if err!=nil{                c.String(http.StatusNotFound, err.Error())                return        }        c.String(http.StatusOK, signedToken)} func verify(c *gin.Context) {        strToken := c.Param("token")        claim,err := verifyAction(strToken)        if err != nil {                c.String(http.StatusNotFound, err.Error())                return        }        c.String(http.StatusOK, "verify,",claim.Username)} func refresh(c *gin.Context) {        strToken := c.Param("token")        claims,err := verifyAction(strToken)        if err != nil {                c.String(http.StatusNotFound, err.Error())                return        }        claims.ExpiresAt = time.Now().Unix() + (claims.ExpiresAt - claims.IssuedAt)        signedToken,err:=getToken(claims)        if err!=nil{                c.String(http.StatusNotFound, err.Error())                return        }        c.String(http.StatusOK, signedToken)} func verifyAction(strToken string) (*JWTClaims, error) {        token, err := jwt.ParseWithClaims(strToken, &JWTClaims{}, func(token *jwt.Token) (interface{}, error) {                return []byte(Secret), nil        })        if err != nil {                return nil, errors.New(ErrorReason_ServerBusy)        }        claims, ok := token.Claims.(*JWTClaims)        if !ok {                return nil, errors.New(ErrorReason_ReLogin)        }        if err := token.Claims.Valid(); err != nil {                return nil, errors.New(ErrorReason_ReLogin)        }        fmt.Println("verify")        return claims, nil} func getToken(claims *JWTClaims)(string,error){        token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)        signedToken, err := token.SignedString([]byte(Secret))        if err != nil {                return "",errors.New(ErrorReason_ServerBusy)        }        return signedToken,nil}

运行结果如图：

访问接口

登陆
验证
刷新
http://localhost:9090/login/
http://localhost:9090/verify/
http://localhost:9090/refresh/

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