diff --git a/ruoyi-ui/src/views/monitor/job/index.vue b/ruoyi-ui/src/views/monitor/job/index.vue
index f19a5970e..a3738d6f8 100644
--- a/ruoyi-ui/src/views/monitor/job/index.vue
+++ b/ruoyi-ui/src/views/monitor/job/index.vue
@@ -240,7 +240,7 @@
       </div>
     </el-dialog>
 
-    <el-dialog title="Cron表达式生成器" :visible.sync="openCron" append-to-body class="scrollbar">
+    <el-dialog title="Cron表达式生成器" :visible.sync="openCron" append-to-body class="scrollbar"  destroy-on-close >
       <crontab @hide="openCron=false" @fill="crontabFill" :expression="expression"></crontab>
     </el-dialog>
 
diff --git a/ruoyi-ui/src/views/tool/gen/index.vue b/ruoyi-ui/src/views/tool/gen/index.vue
index 87fc79676..0c9f0c239 100644
--- a/ruoyi-ui/src/views/tool/gen/index.vue
+++ b/ruoyi-ui/src/views/tool/gen/index.vue
@@ -301,6 +301,7 @@ export default {
       previewTable(row.tableId).then(response => {
         this.preview.data = response.data;
         this.preview.open = true;
+        this.preview.activeName = "domain.java";
       });
     },
     /** 高亮显示 */