如何使用Gin JWT中间件设置cookie

import (
    "github.com/gin-gonic/gin"
    "github.com/dgrijalva/jwt-go"
    "github.com/appleboy/gin-jwt/v2"
)

authMiddleware := &jwt.GinJWTMiddleware{
    Realm:       "your_realm",
    Key:         []byte("your_secret_key"),
    Timeout:     time.Hour,
    MaxRefresh:  time.Hour,
    IdentityKey: "your_identity_key",
    ...
}

func loginHandler(c *gin.Context) {
    ...
    // 验证用户名和密码
    if username == "valid_username" && password == "valid_password" {
        // 生成JWT
        token, err := authMiddleware.GenerateToken(username)
        if err != nil {
            c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to generate token"})
            return
        }
        // 设置JWT为cookie
        c.SetCookie("jwt", token, int(authMiddleware.Timeout.Seconds()), "/", "your_domain", false, true)
        c.JSON(http.StatusOK, gin.H{"token": token})
    } else {
        c.JSON(http.StatusUnauthorized, gin.H{"error": "Invalid credentials"})
    }
}

r := gin.Default()

// 添加登录路由
r.POST("/login", loginHandler)

// 使用JWT中间件进行身份验证
r.Use(authMiddleware.MiddlewareFunc())

// 添加受保护的路由
r.GET("/protected", func(c *gin.Context) {
    claims := jwt.ExtractClaims(c)
    user, _ := c.Get(authMiddleware.IdentityKey)
    c.JSON(http.StatusOK, gin.H{
        "user":   user.(*User),
        "claims": claims,
    })
})

// 启动服务器
r.Run(":8080")