v3.5.0 导出按钮点击之后添加遮罩

yudao-ui-admin/src/views/pay/merchant/index.vue

@@ -37,7 +37,7 @@
                    v-hasPermi="['pay:merchant:create']">新增</el-button>
       </el-col>
       <el-col :span="1.5">
-        <el-button type="warning" plain icon="el-icon-download" size="mini" @click="handleExport"
+        <el-button type="warning" plain icon="el-icon-download" size="mini" :loading="exportLoading" @click="handleExport"
                    v-hasPermi="['pay:merchant:export']">导出</el-button>
       </el-col>
       <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
@@ -124,6 +124,8 @@ export default {
     return {
       // 遮罩层
       loading: true,
+      // 导出遮罩层
+      exportLoading: false,
       // 显示搜索条件
       showSearch: true,
       // 总条数
@@ -285,10 +287,12 @@ export default {
           confirmButtonText: "确定",
           cancelButtonText: "取消",
           type: "warning"
-        }).then(function() {
+        }).then(() => {
+          this.exportLoading = true;
           return exportMerchantExcel(params);
         }).then(response => {
           this.downloadExcel(response, '支付商户信息.xls');
+          this.exportLoading = false;
         })
     }
   }