diff --git a/index.js b/index.js
index 30f2cff..09c162c 100644
--- a/index.js
+++ b/index.js
@@ -5,6 +5,7 @@
  */
 
 export default class Controller {
+  #auth = null
 
   // 定义一个模板变量
   assign(key, val) {
@@ -30,23 +31,24 @@ export default class Controller {
       })
   }
 
-  // jwt 生成token及校验token
-  jwt(data) {
-    var { enabled, ttl } = this.context.get('jwt')
-    var { mixKey } = this.request
-    var auth = this.request.header('authorization')
+  get jwt() {
+    return {
+      result: this.#auth,
+      sign(data) {
+        let { ttl } = this.context.get('jwt')
+        let { __mix_key__ } = this.request
+        return this.context.$$jwt.sign(data, __mix_key__, ttl)
+      },
+      verify() {
+        this.#auth = null
+        let token = this.request.header('authorization')
+        let { __mix_key__ } = this.request
 
-    if (enabled) {
-      if (data) {
-        return this.context.$$jwt.sign(data, mixKey, ttl)
-      } else {
-        if (auth) {
-          this.jwt.result = this.context.$$jwt.verify(auth, mixKey)
-          return this.jwt.result
+        if (token) {
+          this.#auth = this.context.$$jwt.verify(token, __mix_key__)
+          return this.#auth
         }
       }
-    } else {
-      throw Error('Jwt was disabled.')
     }
   }