fix bm router USE (#271)

pkg/net/http/blademaster/routergroup.go

@@ -134,7 +134,6 @@ func (group *RouterGroup) HEAD(relativePath string, handlers ...HandlerFunc) IRo
 	return group.handle("HEAD", relativePath, handlers...)
 }
 
-
 func (group *RouterGroup) combineHandlers(handlerGroups ...[]HandlerFunc) []HandlerFunc {
 	finalSize := len(group.Handlers)
 	for _, handlers := range handlerGroups {
@@ -190,4 +189,3 @@ func (group *RouterGroup) Any(relativePath string, handlers ...HandlerFunc) IRou
 	group.handle("TRACE", relativePath, handlers...)
 	return group.returnObj()
 }
-

pkg/net/http/blademaster/server.go

@@ -383,6 +383,8 @@ func (engine *Engine) UseFunc(middleware ...HandlerFunc) IRoutes {
 // For example, this is the right place for a logger or error management middleware.
 func (engine *Engine) Use(middleware ...Handler) IRoutes {
 	engine.RouterGroup.Use(middleware...)
+	engine.rebuild404Handlers()
+	engine.rebuild405Handlers()
 	return engine
 }