增加登录验证

src/wrappers/auth.tsx

@@ -0,0 +1,13 @@
+import React from 'react';
+import { Redirect } from 'umi';
+import { message } from 'antd';
+// 权限校验
+export default (props: any) => {
+  if (localStorage.getItem('token')) {
+    return <div>{props.children}</div>;
+  } else {
+    // 提示后跳转
+    message.error('请先登录');
+    return <Redirect to="/login" />;
+  }
+};