diff --git a/frontend/module/system/js/editldap.js b/frontend/module/system/js/editldap.js
index ee139dff..cf5d7e8d 100644
--- a/frontend/module/system/js/editldap.js
+++ b/frontend/module/system/js/editldap.js
@@ -51,6 +51,15 @@ $(function()
         settings.bindDN   = $('input[name="extra[bindDN]"]').val();
         settings.bindPass = $('input[name="extra[bindPass]"]').val();
         settings.baseDN   = $('input[name="extra[baseDN]"]').val();
+        if(!settings.host || !settings.port || !settings.bindDN || !settings.bindPass || !settings.baseDN)
+        {
+            bootbox.alert(
+            {
+                title:   notices.attention,
+                message: notices.fillAllRequiredFields,
+            });
+            return;
+        }
 
         $.post(createLink('system', 'testLDAPConnection'), settings).done(function(response)
         {
diff --git a/frontend/module/system/js/installldap.js b/frontend/module/system/js/installldap.js
index a4843ef7..e69cb1c4 100644
--- a/frontend/module/system/js/installldap.js
+++ b/frontend/module/system/js/installldap.js
@@ -51,6 +51,15 @@ $(function()
         settings.bindDN   = $('input[name="extra[bindDN]"]').val();
         settings.bindPass = $('input[name="extra[bindPass]"]').val();
         settings.baseDN   = $('input[name="extra[baseDN]"]').val();
+        if(!settings.host || !settings.port || !settings.bindDN || !settings.bindPass || !settings.baseDN)
+        {
+            bootbox.alert(
+            {
+                title:   notices.attention,
+                message: notices.fillAllRequiredFields,
+            });
+            return;
+        }
 
         $.post(createLink('system', 'testLDAPConnection'), settings).done(function(response)
         {
diff --git a/frontend/module/system/lang/zh-cn.php b/frontend/module/system/lang/zh-cn.php
index 298a1051..324e6692 100644
--- a/frontend/module/system/lang/zh-cn.php
+++ b/frontend/module/system/lang/zh-cn.php
@@ -42,11 +42,13 @@
 $lang->system->ldapTypeList['extra']   = '外部映射';
 
 $lang->system->notices = new stdclass;
-$lang->system->notices->noLDAP             = '找不到LDAP配置数据';
-$lang->system->notices->ldapUsed           = '已经有服务关联了LDAP';
-$lang->system->notices->ldapInstallSuccess = 'LDAP安装成功';
-$lang->system->notices->ldapUpdateSuccess  = 'LDAP更新成功';
-$lang->system->notices->verifyLDAPSuccess  = '校验LDAP成功！';
+$lang->system->notices->attention             = '注意';
+$lang->system->notices->noLDAP                = '找不到LDAP配置数据';
+$lang->system->notices->ldapUsed              = '已经有服务关联了LDAP';
+$lang->system->notices->ldapInstallSuccess    = 'LDAP安装成功';
+$lang->system->notices->ldapUpdateSuccess     = 'LDAP更新成功';
+$lang->system->notices->verifyLDAPSuccess     = '校验LDAP成功！';
+$lang->system->notices->fillAllRequiredFields = '请填写全部必填项！';
 
 $lang->system->errors = new stdclass;
 $lang->system->errors->notFoundDB                 = '找不到该数据库';
diff --git a/frontend/module/system/model.php b/frontend/module/system/model.php
index e00a82ce..143534e1 100644
--- a/frontend/module/system/model.php
+++ b/frontend/module/system/model.php
@@ -172,7 +172,7 @@ public function installExtraLDAP($settings, $action='install')
         $snippetSettings->values->auth->ldap->enabled   = true;
         $snippetSettings->values->auth->ldap->type      = 'ldap';
         $snippetSettings->values->auth->ldap->host      = $settings->host;
-        $snippetSettings->values->auth->ldap->port      = intval($settings->port);
+        $snippetSettings->values->auth->ldap->port      = strval($settings->port);
         $snippetSettings->values->auth->ldap->bindDN    = "cn={$settings->bindDN},{$settings->baseDN}";
         $snippetSettings->values->auth->ldap->bindPass  = $settings->bindPass;
         $snippetSettings->values->auth->ldap->baseDN    = $settings->baseDN;
diff --git a/frontend/module/system/view/editldap.html.php b/frontend/module/system/view/editldap.html.php
index 9e918c41..c3c0b16b 100644
--- a/frontend/module/system/view/editldap.html.php
+++ b/frontend/module/system/view/editldap.html.php
@@ -13,6 +13,7 @@
 <?php include $this->app->getModuleRoot() . '/common/view/header.html.php';?>
 <?php $ldapLinked = $this->loadModel('instance')->countLDAP();?>
 <?php js::set('errors', $lang->system->errors);?>
+<?php js::set('notices', $lang->system->notices);?>
 <?php js::set('disableEdit', ($ldapLinked ? true : false));?>
 <div id='mainMenu' class='clearfix'>
   <div class='btn-toolbar pull-left'>
diff --git a/frontend/module/system/view/installldap.html.php b/frontend/module/system/view/installldap.html.php
index 8d5fc14f..33272e35 100644
--- a/frontend/module/system/view/installldap.html.php
+++ b/frontend/module/system/view/installldap.html.php
@@ -13,6 +13,7 @@
 <?php include $this->app->getModuleRoot() . '/common/view/header.html.php';?>
 <?php $ldapLinked = $this->loadModel('instance')->countLDAP();?>
 <?php js::set('errors', $lang->system->errors);?>
+<?php js::set('notices', $lang->system->notices);?>
 <div id='mainMenu' class='clearfix'>
   <div class='btn-toolbar pull-left'>
     <?php echo html::a($this->createLink('system', 'index'), "<i class='icon icon-back icon-sm'></i>" . $lang->goback, '', "class='btn btn-secondary'");?>