fix:bug[17178] 无网络-触发搜索，页面空白

 import router from '@ohos.router'
-import { StringUtils, ToastUtils } from 'wdKit'
+import { NetworkUtil, StringUtils, ToastUtils } from 'wdKit'
 import SearcherAboutDataModel from '../../model/SearcherAboutDataModel'
 import { SearchHistoryItem } from '../../viewmodel/SearchHistoryItem'
 import { SearchRelatedItem } from '../../viewmodel/SearchRelatedItem'
+import { EmptyComponent } from '../view/EmptyComponent'
 import { SearchHistoryComponent } from './SearchHistoryComponent'
 import { SearchHotsComponent } from './SearchHotsComponent'
 import { SearchRelatedComponent } from './SearchRelatedComponent'
@@ -30,6 +31,7 @@ export struct SearchComponent {
   scroller: Scroller = new Scroller()
   @State count:string[] = []
   @State isGetRequest:boolean = false;
+  @State isConnectNetwork : boolean = NetworkUtil.isNetConnected()
 
   aboutToAppear() {
     //获取提示滚动
@@ -127,8 +129,16 @@ export struct SearchComponent {
         .padding({ left: '31lpx', right: '31lpx' })
       } else {
         if (this.hasChooseSearch) {
-          //搜索结果
-          SearchResultComponent({count:this.count,searchText:this.searchText,isGetRequest:this.isGetRequest})
+          if(!this.isConnectNetwork){
+            EmptyComponent({ emptyType: 1,emptyHeight:"100%" ,retry: () => {
+              this.getSearchInputResData(this.searchText)
+            }})
+              .layoutWeight(1)
+              .width('100%')
+          }else{
+            //搜索结果
+            SearchResultComponent({count:this.count,searchText:this.searchText,isGetRequest:this.isGetRequest})
+          }
         } else {
           //联想搜索
           SearchRelatedComponent({relatedSearchContentData:$relatedSearchContentsData,onGetSearchRes: (item): void => this.getSearchRelatedResData(item),searchText:this.searchText})
@@ -138,7 +148,6 @@ export struct SearchComponent {
     .width('100%')
   }
 
-
   /**
    * 点击搜索记录列表回调
    * @param content
@@ -329,11 +338,13 @@ export struct SearchComponent {
         // }
       }
       this.isGetRequest = true
-     this.resetSearch()
+      this.resetSearch()
+      this.isConnectNetwork = NetworkUtil.isNetConnected()
     }).catch((err: Error) => {
       console.log(TAG, JSON.stringify(err))
       this.isGetRequest = true
       this.resetSearch()
+      this.isConnectNetwork = NetworkUtil.isNetConnected()
     })
   }