1. func SetUp (maxBurstSize int) gin.HandlerFunc {
    3.     // rate.Every(time.Second*1) 每秒添加一个访问名额
    4.     // maxBurstSize  最大访问名额
    5.     limiter := rate.NewLimiter(rate.Every(time.Second*1), maxBurstSize)
    6.     return func(c *gin.Context) {
    7.         if limiter.Allow() {
    8.             c.Next()
    9.             return
    10.         }
    12.         c.String(400, "Too many requests")
    13.         c.Abort()
    14.         return
    15.     }
    16. }