diff --git a/module/instance/model.php b/module/instance/model.php
index 7a14b15729..5219afd2e5 100644
--- a/module/instance/model.php
+++ b/module/instance/model.php
@@ -65,11 +65,11 @@ class instanceModel extends model
     /**
      * Get by id list.
      *
-     * @param  array $idList
+     * @param  array  $idList
      * @access public
      * @return array
      */
-    public function getByIdList($idList)
+    public function getByIdList(array $idList)
     {
         $instances = $this->dao->select('*')->from(TABLE_INSTANCE)
             ->where('id')->in($idList)
diff --git a/module/instance/test/model/getbyurl.php b/module/instance/test/model/getbyurl.php
new file mode 100755
index 0000000000..2e1e5899db
--- /dev/null
+++ b/module/instance/test/model/getbyurl.php
@@ -0,0 +1,30 @@
+#!/usr/bin/env php
+<?php
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+su('admin');
+
+zdTable('instance')->gen(5);
+
+/**
+
+title=instanceModel->getByUrl();
+timeout=0
+cid=1
+
+- 查看获取到的第一条instance属性id @1
+- 查看获取到的第二条instance属性id @2
+- 查看不存在的url @0
+
+*/
+
+global $tester;
+$tester->loadModel('instance');
+
+$instance = $tester->instance->getByUrl("rila.dops.corp.cc");
+r($instance) && p('id') && e('1'); // 查看获取到的第一条instance
+
+$instance = $tester->instance->getByUrl("7czx.dops.corp.cc");
+r($instance) && p('id') && e('2'); // 查看获取到的第二条instance
+
+$instance = $tester->instance->getByUrl("www.zentao.net");
+r($instance) && p('') && e('0'); // 查看不存在的url
\ No newline at end of file
diff --git a/test/data/instance.yaml b/test/data/instance.yaml
index 0e472e943d..e29d9c7645 100644
--- a/test/data/instance.yaml
+++ b/test/data/instance.yaml
@@ -27,3 +27,5 @@ fields:
     range: 'cloud'
   - field: channel
     range: 'stable'
+  - field: domain
+    range: 'rila.dops.corp.cc,7czx.dops.corp.cc,xqly.dops.corp.cc,ane3.dops.corp.cc,qphl.dops.corp.cc'