Configuration error: No realms have been configured! One or more realms must be present to execute an authentication attempt.

测试Shiro框架时候出现了

Configuration error: No realms have been configured! One or more realms must be present to execute an authentication attempt.

大概意思是：配置错误：未配置任何领域！必须存在一个或多个域才能执行身份验证尝试。

找了好久，网上有的说是

<property name="realms">与<property name="authenticator" ref="authenticator" />

顺序错了
但是没解决
最后发现

    @Bean
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联UserRealm,此时不能直接获取UserRealm,需要技巧
        securityManager.setRealm(userRealm);
        return new DefaultWebSecurityManager();
    }

返回对象时候，错误的重新new了一个，没有将传入userRealm的对象返回