go install报错

Question

./main.go:17:2: cannot use m (type middleWareHandler) as type http.Handler in return argument:middleWareHandler does not implement http.Handler (missing ServeHTTP method)#代码如下type middleWareHandler struct {  r *httprouter.Router}func NewMiddleWareHandler(r *httprouter.Router) http.Handler {  m := middleWareHandler{}  m.r = r  return m}

Answer 1

你看下main.go文件中函数名为ServeHTTP的函数是否正确

Answer 2

定义了没有使用

Answer 3

很显然，middleWareHandler这个类没有实现 http.Handler 的方法