gozero中间件获取请求体

type ForceCheckTokenMiddleware struct {
}

func NewForceCheckTokenMiddleware() *ForceCheckTokenMiddleware {
	return &ForceCheckTokenMiddleware{}
}

type tokenStruct struct {
	Token string `json:"token"`
	Uid   int64  `json:"uid"`
}

func (m *ForceCheckTokenMiddleware) Handle(next http.HandlerFunc) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var req tokenStruct
		buffer, _ := io.ReadAll(r.Body) //直接读取请求体
		r.Body = io.NopCloser(bytes.NewBuffer(buffer))
		defer r.Body.Close() 
		jsonx.Unmarshal(buffer, &req)
		token := req.Token
		uid := req.Uid
		next(w, r)
		}
}