diff --git a/config/index.js b/config/index.js
index 488cdfb..0adc582 100644
--- a/config/index.js
+++ b/config/index.js
@@ -13,7 +13,7 @@ export default {
     type: 'native', // native 或 redis
     ttl: 3600 * 24 * 7,
     domain: '', // NODESSID域, 默认等于domain
-    level: 0, // 校验级别, 0: 不校验客户端, 1: 校验UA, 2: 校验UA+IP
+    level: 0, // 校验级别, 0: 不校验客户端, 2: ua, 4: ip, 6: ua + ip
     db: {
       host: '127.0.0.1',
       port: 6379,
@@ -38,7 +38,7 @@ export default {
     origin: [], // ['abc.com', 'a.foo.com']
     maxAge: 0
   },
-  jwt: null, // jwt secret
+  jwt: false, // jwt opened
   regexp: {
     // 常用正则
     email: /^[\w\.\-]+@\w+([\.\-]\w+)*\.\w+$/,
diff --git a/index.js b/index.js
index da61f4c..10be550 100644
--- a/index.js
+++ b/index.js
@@ -17,6 +17,8 @@ import Jwt from '@gm5/jwt'
 
 import config from './config/index.js'
 
+import Views from './lib/views.js'
+
 import routerWare from './middleware/router.js'
 import corsWare from './middleware/cors.js'
 
@@ -42,12 +44,15 @@ export default class Five {
     session.domain = session.domain || domain
     this.set({ domain, session })
 
-    // 安装jwt
-    this.install(Jwt)
+    // 用户没手动安装模板引擎时, 才会安装内置的伪引擎
+    if (!this.$$views) {
+      this.install(Views)
+    }
 
     // 将session中间件提到最前
     // 以便用户自定义的中间件可以直接操作session
     this.install(sessionStore)
+    this.install(Jwt)
     this.__MIDDLEWARE__.unshift(sessionWare)
 
     // 路由中间件要在最后
diff --git a/lib/views.js b/lib/views.js
new file mode 100644
index 0000000..b37c4ca
--- /dev/null
+++ b/lib/views.js
@@ -0,0 +1,29 @@
+/**
+ * 简单的模板渲染, 用于在不需要smarty这种重量级模板引擎的时候
+ * 可以兼容smarty的api
+ * @author yutent<yutent.io@gmail.com>
+ * @date 2020/09/24 16:41:31
+ */
+
+import fs from 'iofs'
+import path from 'path'
+
+export default {
+  name: 'views',
+  install() {
+    //
+    var updir = this.get('VIEWS')
+
+    return {
+      assign() {
+        //
+      },
+
+      render(file, noParse) {
+        var filePath = path.join(updir, file)
+        var buf = fs.cat(filePath)
+        return Promise.resolve(buf)
+      }
+    }
+  }
+}