diff --git a/net/ghttp/ghttp_server.go b/net/ghttp/ghttp_server.go
index 4ddecfe3e..f036c121d 100644
--- a/net/ghttp/ghttp_server.go
+++ b/net/ghttp/ghttp_server.go
@@ -10,7 +10,6 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"net"
 	"net/http"
 	"os"
 	"runtime"
@@ -616,7 +615,7 @@ func (s *Server) GetListenedPort() int {
 func (s *Server) GetListenedPorts() []int {
 	ports := make([]int, 0)
 	for _, server := range s.servers {
-		ports = append(ports, server.rawListener.Addr().(*net.TCPAddr).Port)
+		ports = append(ports, server.GetListenedPort())
 	}
 	return ports
 }
diff --git a/net/ghttp/ghttp_server_graceful.go b/net/ghttp/ghttp_server_graceful.go
index de5d8c956..1eaad5321 100644
--- a/net/ghttp/ghttp_server_graceful.go
+++ b/net/ghttp/ghttp_server_graceful.go
@@ -13,6 +13,7 @@ import (
 	"net"
 	"net/http"
 	"os"
+	"sync"
 
 	"github.com/gogf/gf/v2/errors/gerror"
 	"github.com/gogf/gf/v2/os/gproc"
@@ -27,6 +28,7 @@ type gracefulServer struct {
 	address     string       // Listening address like:":80", ":8080".
 	httpServer  *http.Server // Underlying http.Server.
 	rawListener net.Listener // Underlying net.Listener.
+	rawLnMu     sync.RWMutex // Concurrent safety mutex for `rawListener`.
 	listener    net.Listener // Wrapped net.Listener.
 	isHttps     bool         // Is HTTPS.
 	status      int          // Status of current server.
@@ -72,15 +74,15 @@ func (s *gracefulServer) ListenAndServe() error {
 		return err
 	}
 	s.listener = ln
-	s.rawListener = ln
+	s.setRawListener(ln)
 	return s.doServe(context.TODO())
 }
 
 // Fd retrieves and returns the file descriptor of current server.
-// It is available ony in *nix like operation systems like: linux, unix, darwin.
+// It is available ony in *nix like operating systems like: linux, unix, darwin.
 func (s *gracefulServer) Fd() uintptr {
-	if s.rawListener != nil {
-		file, err := s.rawListener.(*net.TCPListener).File()
+	if ln := s.getRawListener(); ln != nil {
+		file, err := ln.(*net.TCPListener).File()
 		if err == nil {
 			return file.Fd()
 		}
@@ -111,7 +113,7 @@ func (s *gracefulServer) ListenAndServeTLS(certFile, keyFile string, tlsConfig .
 	if config.NextProtos == nil {
 		config.NextProtos = []string{"http/1.1"}
 	}
-	err := error(nil)
+	var err error
 	if len(config.Certificates) == 0 {
 		config.Certificates = make([]tls.Certificate, 1)
 		if gres.Contains(certFile) {
@@ -133,10 +135,18 @@ func (s *gracefulServer) ListenAndServeTLS(certFile, keyFile string, tlsConfig .
 	}
 
 	s.listener = tls.NewListener(ln, config)
-	s.rawListener = ln
+	s.setRawListener(ln)
 	return s.doServe(ctx)
 }
 
+// GetListenedPort retrieves and returns one port which is listened by current server.
+func (s *gracefulServer) GetListenedPort() int {
+	if ln := s.getRawListener(); ln != nil {
+		return ln.Addr().(*net.TCPAddr).Port
+	}
+	return 0
+}
+
 // getProto retrieves and returns the proto string of current server.
 func (s *gracefulServer) getProto() string {
 	proto := "http"
@@ -199,6 +209,20 @@ func (s *gracefulServer) shutdown(ctx context.Context) {
 	}
 }
 
+// setRawListener sets `rawListener` with given net.Listener.
+func (s *gracefulServer) setRawListener(ln net.Listener) {
+	s.rawLnMu.Lock()
+	defer s.rawLnMu.Unlock()
+	s.rawListener = ln
+}
+
+// setRawListener returns the `rawListener` of current server.
+func (s *gracefulServer) getRawListener() net.Listener {
+	s.rawLnMu.RLock()
+	defer s.rawLnMu.RUnlock()
+	return s.rawListener
+}
+
 // close shuts down the server forcibly.
 func (s *gracefulServer) close(ctx context.Context) {
 	if s.status == ServerStatusStopped {
diff --git a/net/ghttp/ghttp_z_unit_feature_error_code_test.go b/net/ghttp/ghttp_z_unit_feature_error_code_test.go
index 0b087bac2..fbf625fd0 100644
--- a/net/ghttp/ghttp_z_unit_feature_error_code_test.go
+++ b/net/ghttp/ghttp_z_unit_feature_error_code_test.go
@@ -34,6 +34,7 @@ func Test_Error_Code(t *testing.T) {
 				panic(gerror.NewCode(gcode.New(10000, "", nil), "test error"))
 			})
 		})
+		s.SetDumpRouterMap(false)
 		s.Start()
 		defer s.Shutdown()
 		time.Sleep(100 * time.Millisecond)
diff --git a/net/ghttp/ghttp_z_unit_feature_static_test.go b/net/ghttp/ghttp_z_unit_feature_static_test.go
index 93d87c7d6..da5e5df90 100644
--- a/net/ghttp/ghttp_z_unit_feature_static_test.go
+++ b/net/ghttp/ghttp_z_unit_feature_static_test.go
@@ -258,6 +258,7 @@ func Test_Static_Rewrite(t *testing.T) {
 			"/my-test1": "/test1.html",
 			"/my-test2": "/test2.html",
 		})
+		s.SetDumpRouterMap(false)
 		s.Start()
 		defer s.Shutdown()
 		time.Sleep(100 * time.Millisecond)