diff --git a/src/main/java/com/budwk/app/zhgh/democratic/teachercongress/prepare/service/impl/TeacherCongressSessionServiceImpl.java b/src/main/java/com/budwk/app/zhgh/democratic/teachercongress/prepare/service/impl/TeacherCongressSessionServiceImpl.java
index 76fc451..dad44c7 100644
--- a/src/main/java/com/budwk/app/zhgh/democratic/teachercongress/prepare/service/impl/TeacherCongressSessionServiceImpl.java
+++ b/src/main/java/com/budwk/app/zhgh/democratic/teachercongress/prepare/service/impl/TeacherCongressSessionServiceImpl.java
@@ -33,6 +33,7 @@ import org.nutz.dao.Dao;
 import org.nutz.ioc.aop.Aop;
 import org.nutz.ioc.loader.annotation.Inject;
 import org.nutz.ioc.loader.annotation.IocBean;
+import org.nutz.lang.Lang;
 import org.nutz.lang.random.R;
 
 import java.util.Date;
@@ -258,7 +259,10 @@ public class TeacherCongressSessionServiceImpl extends BaseServiceImpl<Teacher_c
      * @param children  子集
      */
     private void insertInstitution(String sessionId, String parentId, List<Tree<String>> children) {
-        for (Tree<String> child : children) {
+        if(Lang.isEmpty(children)) {
+			return;
+		}
+		for (Tree<String> child : children) {
             Teacher_congress_institution newInstitution = new Teacher_congress_institution();
             newInstitution.setId(null);
             newInstitution.setSessionId(sessionId);
diff --git a/src/main/resources/static/components/plugins/sysUpload/index.vue b/src/main/resources/static/components/plugins/sysUpload/index.vue
index 39ac873..cd95398 100644
--- a/src/main/resources/static/components/plugins/sysUpload/index.vue
+++ b/src/main/resources/static/components/plugins/sysUpload/index.vue
@@ -11,6 +11,7 @@
         :before-upload="beforeUpload"
         :limit="upload_number"
         :accept="fileAccept"
+        :multiple="true"
     >
       <el-button :size="upload_button_size" type="primary">
         {{ upload_text }}
@@ -31,6 +32,7 @@
         :on-exceed="handleExceed"
         :limit="upload_number"
         :accept="fileAccept"
+        :multiple="true"
         list-type="picture-card"
     >
       <i class="el-icon-plus"></i>
diff --git a/src/main/resources/views/platform/zhgh/democratic/teachercongress/prepare/file/index.html b/src/main/resources/views/platform/zhgh/democratic/teachercongress/prepare/file/index.html
index 63bbd81..d39710e 100644
--- a/src/main/resources/views/platform/zhgh/democratic/teachercongress/prepare/file/index.html
+++ b/src/main/resources/views/platform/zhgh/democratic/teachercongress/prepare/file/index.html
@@ -74,7 +74,7 @@ layout("/layouts/platform.html"){
             </el-form-item>
 
             <el-form-item label="文件" prop="files">
-                <file-upload :upload_number="5" :upload_size="1024 * 1024 * 1" :value.sync="formData.files" complete_result upload_result_category="array"></file-upload>
+                <file-upload :upload_number="5" :upload_size="1024 * 1024 * 5" :value.sync="formData.files" complete_result upload_result_category="array"></file-upload>
             </el-form-item>
         </el-form>
         <div class="dialog-footer" slot="footer">