fix: user must provide route path at least in one way

internal/example/apis/index/index.go

@@ -13,7 +13,8 @@ import (
 type Index struct {
 	// httpx.MethodAny `path:"/index.any"`
 	httpx.MethodMulti `path:"/index" methods:"GET,HEAD"`
-	Name              string `query:"name"`
+	// httpx.MethodMulti `path:"" methods:"GET,HEAD"`
+	Name string `query:"name"`
 }
 
 func (index *Index) Output(c *gin.Context) (interface{}, error) {

rum/engine.go

@@ -85,7 +85,7 @@ func (e *Engine) ListenAndServe(addrs ...string) error {
 // Shutdown 用户自定义退出。 如果不是使用 ListenAndServe 启动则不能使用。
 func (e *Engine) Shutdown(ctx context.Context) error {
 	if e.srv == nil {
-		return errors.New(NotRunWithListenAndServe)
+		return errors.New(Err_NotRunWithListenAndServe)
 	}
 
 	return e.srv.Shutdown(ctx)

rum/errors.go

@@ -1,6 +1,8 @@
 package rum
 
 var (
-	NotRunWithListenAndServe = "rum not run with ListenAndServe method"
-	BindingRequestError      = "binding request params failed"
+	Err_NotRunWithListenAndServe = "rum not run with ListenAndServe method"
+	Err_BindingRequest           = "binding request params failed"
+
+	Err_NoPathProvide = "no route path provide"
 )

rum/group.go

@@ -102,15 +102,25 @@ func (r *RouterGroup) use(op Operator) bool {
 // handle 添加路由
 func (r *RouterGroup) hanlde(op Operator) bool {
 
-	// 通过反射获取 path
-	path := routePath(op)
+	path := ""
 
-	// 通过断言接口获取 path
-	if path == "" {
-		h := op.(PathOperator)
+	// user path method first. 通过断言接口获取 path
+	if h, ok := op.(PathOperator); path == "" && ok {
 		path = h.Path()
 	}
 
+	// if path is not provided by Path method, emtpy.
+	// try to get path value from tag by reflection
+	// user must provide a path value at least one ways
+	if path == "" {
+		p, err := routePath(op)
+		if err != nil {
+			panic(err)
+		}
+
+		path = p
+	}
+
 	mop := op.(MethodOperator)
 
 	for _, method := range httpx.UnmarshalMethods(mop.Method()) {
@@ -132,7 +142,7 @@ func (r *RouterGroup) handlerfunc(op Operator) HandlerFunc {
 
 		err := ginbinder.ShouldBindRequest(c, op)
 		if err != nil {
-			err = statuserrors.Wrap(err, http.StatusBadRequest, BindingRequestError)
+			err = statuserrors.Wrap(err, http.StatusBadRequest, Err_BindingRequest)
 			r.output(c, nil, err)
 			return
 		}

rum/group_utils.go

@@ -1,10 +1,11 @@
 package rum
 
 import (
+	"fmt"
 	"reflect"
 )
 
-func routePath(v interface{}) string {
+func routePath(v interface{}) (string, error) {
 	rv := reflect.ValueOf(v)
 	rv = reflect.Indirect(rv)
 
@@ -34,9 +35,9 @@ func routePath(v interface{}) string {
 
 		// 寻找路径
 		if val, ok := ft.Tag.Lookup("path"); ok {
-			return val
+			return val, nil
 		}
 
 	}
-	return ""
+	return "", fmt.Errorf(Err_NoPathProvide)
 }