gin框架中间件解决跨域问题

func Cors(c *gin.Context) {
    c.Header("Access-Control-Allow-Origin", "*")
    c.Header("Access-Control-Allow-Headers", "Content-Type,AccessToken,X-CSRF-Token, Authorization, Token")
    c.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, PATCH, DELETE")
    c.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Content-Type")
    c.Header("Access-Control-Allow-Credentials", "true")
    //这里是解决vue那个坑
    method := c.Request.Method
    // 放行所有OPTIONS方法，因为有的模板是要请求两次的
    if method == "OPTIONS" {
        c.AbortWithStatus(http.StatusNoContent)
    }
    // 处理请求
    c.Next()
}