@Bean("shiroSecurityManager")
    public DefaultWebSecurityManager securityManager(@Lazy @Qualifier("shiroRealm") final AuthorizingRealm shiroRealm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        securityManager.setRealm(shiroRealm);
        return securityManager;
    }
generate WebSecurityManager.

@param shiroRealm shiro's realm
@return {@linkplain DefaultWebSecurityManager}
shenyu-admin/src/main/java/org/apache/shenyu/admin/shiro/config/ShiroConfiguration.java