diff --git a/toolbox/statistics.go b/toolbox/statistics.go
index 779fd637..beeafc7b 100644
--- a/toolbox/statistics.go
+++ b/toolbox/statistics.go
@@ -15,7 +15,6 @@
 package toolbox
 
 import (
-	"encoding/json"
 	"fmt"
 	"sync"
 	"time"
@@ -112,11 +111,7 @@ func (m *UrlMap) GetMap() map[string]interface{} {
 	return content
 }
 
-func (m *UrlMap) GetMapJSON() ([]byte, error) {
-	return json.Marshal(m)
-}
-
-func (m UrlMap) MarshalJSON() ([]byte, error) {
+func (m *UrlMap) GetMapData() []map[string]interface{} {
 
 	resultLists := make([]map[string]interface{}, 0)
 
@@ -134,7 +129,7 @@ func (m UrlMap) MarshalJSON() ([]byte, error) {
 			resultLists = append(resultLists, result)
 		}
 	}
-	return json.Marshal(resultLists)
+	return resultLists
 }
 
 // global statistics data map
diff --git a/toolbox/statistics_test.go b/toolbox/statistics_test.go
index 97860d32..ac29476c 100644
--- a/toolbox/statistics_test.go
+++ b/toolbox/statistics_test.go
@@ -15,6 +15,7 @@
 package toolbox
 
 import (
+	"encoding/json"
 	"testing"
 	"time"
 )
@@ -29,9 +30,11 @@ func TestStatics(t *testing.T) {
 	StatisticsMap.AddStatistics("DELETE", "/api/user", "&admin.user", time.Duration(1400))
 	t.Log(StatisticsMap.GetMap())
 
-	jsonString, err := StatisticsMap.GetMapJSON()
+	data := StatisticsMap.GetMapData()
+	b, err := json.Marshal(data)
 	if err != nil {
 		t.Errorf(err.Error())
 	}
-	t.Log(string(jsonString))
+
+	t.Log(string(b))
 }