backport fix for #623 from v3 (#709)

group.go

@@ -12,6 +12,8 @@ func (g *Group) Use(m ...Middleware) {
 	for _, h := range m {
 		g.echo.middleware = append(g.echo.middleware, wrapMiddleware(h))
 	}
+
+	g.echo.Any(g.echo.prefix+"*", notFoundHandler)
 }
 
 // Connect implements the echo.Connect interface for subroutes within the Group.

router.go

@@ -344,7 +344,7 @@ func (r *Router) Find(method, path string, ctx *Context) (h HandlerFunc, e *Echo
 		// Static node
 		if c = cn.findChild(search[0], skind); c != nil {
 			// Save next
-			if cn.label == '/' {
+			if cn.prefix[len(cn.prefix)-1] == '/' {
 				nk = pkind
 				nn = cn
 				ns = search
@@ -362,7 +362,7 @@ func (r *Router) Find(method, path string, ctx *Context) (h HandlerFunc, e *Echo
 			}
 
 			// Save next
-			if cn.label == '/' {
+			if cn.prefix[len(cn.prefix)-1] == '/' {
 				nk = akind
 				nn = cn
 				ns = search

router_test.go

@@ -606,6 +606,37 @@ func TestRouterParamNames(t *testing.T) {
 	assert.Equal(t, "1", c.P(1))
 }
 
+func TestRouterStaticDynamicConflict(t *testing.T) {
+	e := New()
+	r := e.router
+	c := NewContext(nil, nil, e)
+
+	r.Add(GET, "/dictionary/skills", func(c *Context) error {
+		c.Set("a", 1)
+		return nil
+	}, e)
+	r.Add(GET, "/dictionary/:name", func(c *Context) error {
+		c.Set("b", 2)
+		return nil
+	}, e)
+	r.Add(GET, "/server", func(c *Context) error {
+		c.Set("c", 3)
+		return nil
+	}, e)
+
+	h, _ := r.Find(GET, "/dictionary/skills", c)
+	h(c)
+	assert.Equal(t, 1, c.Get("a"))
+	c = NewContext(nil, nil, e)
+	h, _ = r.Find(GET, "/dictionary/type", c)
+	h(c)
+	assert.Equal(t, 2, c.Get("b"))
+	c = NewContext(nil, nil, e)
+	h, _ = r.Find(GET, "/server", c)
+	h(c)
+	assert.Equal(t, 3, c.Get("c"))
+}
+
 func TestRouterAPI(t *testing.T) {
 	e := New()
 	r := e.router