diff --git a/example/src/index.js b/example/src/index.js
index d58830e..7edf409 100644
--- a/example/src/index.js
+++ b/example/src/index.js
@@ -17,4 +17,8 @@ app.use(route.get('/logout/callback', ctx => {
   ctx.response.redirect(`/index.html`)
 }))
 
-app.listen(3001)
+// app.use(route.get('/build/umd/index.min.js', ctx => {
+//   ctx.response.redirect(`${path.join(__dirname + '../../')}/example/views/index.min.js`)
+// }))
+
+app.listen(3004)
diff --git a/src/index.ts b/src/index.ts
index ee6b370..069c93c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -95,23 +95,20 @@ export class AuthingSSO {
    * @msg: 登录方法
    * @param {*}
    */
-  login(
-    {
+  login(options: ILoginParams) {
+    const {
       scope,
       responseMode,
       responseType,
-      state,
-      nonce,
       prompt,
-    }: ILoginParams = {
-        scope: 'openid profile email phone',
-        responseMode: 'fragment',
-        responseType: 'id_token token',
-        state: Math.random().toString(),
-        nonce: Math.random().toString(),
-        prompt: undefined,
-      }
-  ) {
+      state,
+      nonce
+    } = Object.assign({}, {
+      scope: 'openid profile email phone',
+      responseMode: 'fragment',
+      responseType: 'id_token token'
+    }, options)
+  
     let url = this.authzUrlBuilder
       .redirectUri(this.redirectUri)
       .scope(scope)
diff --git a/src/interfaces/IAuthingSSOConstructorParams.ts b/src/interfaces/IAuthingSSOConstructorParams.ts
index 1530107..027aef2 100644
--- a/src/interfaces/IAuthingSSOConstructorParams.ts
+++ b/src/interfaces/IAuthingSSOConstructorParams.ts
@@ -62,7 +62,7 @@ export interface IPopUpLoginParams {
   responseType?: string;
   nonce?: string;
   state?: string;
-  prompt: IPromptType
+  prompt?: IPromptType
 }
 
 export interface IGetAccessTokenSilentlyParams extends IPopUpLoginParams{}
diff --git a/src/lib/AuthzUrlBuilder.ts b/src/lib/AuthzUrlBuilder.ts
index d3156d9..4119711 100644
--- a/src/lib/AuthzUrlBuilder.ts
+++ b/src/lib/AuthzUrlBuilder.ts
@@ -43,7 +43,9 @@ export class AuthzUrlBuilder {
       urls.searchParams.append('prompt', this._prompt)
     }
 
-    urls.searchParams.append('state', this._state)
+    if (this._state) {
+      urls.searchParams.append('state', this._state)
+    }
 
     if (this._nonce) {
       urls.searchParams.append('nonce', this._nonce)