diff --git a/src/main/ets/http/HttpHelper.ets b/src/main/ets/http/HttpHelper.ets
index eb11a5e..d328722 100644
--- a/src/main/ets/http/HttpHelper.ets
+++ b/src/main/ets/http/HttpHelper.ets
@@ -272,7 +272,12 @@ export class HttpHelper {
               this.httpHandlerList.length)
           }
           if (data.responseCode === 200) {
-            resolve((typeof data.result === 'string' ? JSON.parse(data.result) : data.result) as T)
+
+            if (typeof data.result === 'string') {
+              resolve(JSON.parse(data.result) as T)
+            }else{
+              resolve(data.result as T)
+            }
           } else {
             const err: Error = new Error()
             err.name = data.responseCode.toString()
diff --git a/src/main/ets/utils/ToolsHelper.ets b/src/main/ets/utils/ToolsHelper.ets
index cbf92d1..1a6e65f 100644
--- a/src/main/ets/utils/ToolsHelper.ets
+++ b/src/main/ets/utils/ToolsHelper.ets
@@ -1,6 +1,6 @@
 import promptAction from '@ohos.promptAction';
 import { BusinessError, deviceInfo } from '@kit.BasicServicesKit';
-import { HashMap } from '@kit.ArkTS';
+import { buffer, HashMap } from '@kit.ArkTS';
 import { DeviceInfo } from '../bean/DeviceInfo';
 import { common } from '@kit.AbilityKit';
 import { md5_hex } from '../util/md5';
@@ -389,6 +389,10 @@ export class ToolsHelper {
 
   }
 
+  static toString(arrayBuffer: ArrayBuffer) {
+    return buffer.from(arrayBuffer).toString('base64')
+  }
+
   private static setTimeOutMap: Map<string, ThrottleInterface> = new Map()
   private static uniqueIdMap = new WeakMap<Function, string>();