No bean named 'shiroFilterFactoryBean' available

今天跟着狂神学习Shiro，遇到了这个问题，我对应ShrioConfig的配置如下

    package com.example.demo.config;

    import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
    import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.boot.autoconfigure.security.ConditionalOnDefaultWebSecurity;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;

    import java.util.LinkedHashMap;
    import java.util.Map;

    @Configuration
    public class ShiroConfig {

    //ShiroFilterBean
    @Bean
    public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("f2") DefaultWebSecurityManager defaultWebSecurityManager){
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        shiroFilterFactoryBean.setSecurityManager(defaultWebSecurityManager);
        /*添加shiro的内置过滤器

        * anon  : 无需认值据可以访问
        * authc : 必须认证了才能访问
        * user  : 必须拥有记住我功能才能使用
        * role  : 拥有莫格角色权限才能访问
        * perms : 拥有对某个资源的权限才能访问
        *
        * */

        Map map = new LinkedHashMap<>();
        map.put("/user/add","authc");
        map.put("/user/update","authc");

        shiroFilterFactoryBean.setFilterChainDefinitionMap(map);
        return shiroFilterFactoryBean;
    }

    //DefaultWebSecurityManager
    @Bean(name="f2")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联UserRealm
        securityManager.setRealm(userRealm);
        return securityManager;
    }


    //创建 realm 对象 ，需要自定义
    @Bean
    public UserRealm userRealm(){
        return new UserRealm();
    }
}

查询资料后，了解只需在ShiroFilterBean后面的Bean加上(name = "shiroFilterFactoryBean")

问题解决