diff --git a/src/modules/crud/crud.service.ts b/src/modules/crud/crud.service.ts
index a9282ff..19297e7 100644
--- a/src/modules/crud/crud.service.ts
+++ b/src/modules/crud/crud.service.ts
@@ -1,10 +1,13 @@
 import { ResultType } from './crud.typings.d';
 import { ReqPath } from '../constants/env';
 
+function getFullUrl(url: string) {
+    return url ? `${ReqPath}/${url}` : ReqPath;
+}
 
 export function requestGet(url: string, data?: any): Promise<ResultType> {
     return new Promise(resolve => {
-        Dec.reqGet(`${ReqPath}/${url}`, '', re => {
+        Dec.reqGet(getFullUrl(url), '', re => {
             resolve(re);
         });
     });
@@ -12,7 +15,7 @@ export function requestGet(url: string, data?: any): Promise<ResultType> {
 
 export function requestPost(url: string, data = {}): Promise<ResultType> {
     return new Promise(resolve => {
-        Dec.reqPost(`${ReqPath}/${url}`, data, re => {
+        Dec.reqPost(getFullUrl(url), data, re => {
             resolve(re);
         });
     });
@@ -20,7 +23,7 @@ export function requestPost(url: string, data = {}): Promise<ResultType> {
 
 export function requestDelete(url: string, data = {}) {
     return new Promise(resolve => {
-        Dec.reqDelete(`${ReqPath}/${url}`, data, re => {
+        Dec.reqDelete(getFullUrl(url), data, re => {
             resolve(re);
         });
     });
@@ -28,7 +31,7 @@ export function requestDelete(url: string, data = {}) {
 
 export function requestPut(url: string, data = {}) {
     return new Promise(resolve => {
-        Dec.reqPut(`${ReqPath}/${url}`, data, re => {
+        Dec.reqPut(getFullUrl(url), data, re => {
             resolve(re);
         });
     });