spring security配置多个WebSecurityConfigurerAdapter后，如何在service层获得AuthenticationManager实例？

[mcyustc]

@Override
protected void configure(AuthenticationManagerBuilder auth) {
    DaoAuthenticationProvider daoAuthenticationProvider = new DaoAuthenticationProvider();
    daoAuthenticationProvider.setUserDetailsService(userDetailsService);
    daoAuthenticationProvider.setPasswordEncoder(new BCryptPasswordEncoder());
    auth.authenticationProvider(daoAuthenticationProvider);
}

如果向若依一样注入bean会导致启动失败

@Bean(name = "sellerAuthenticationManager")
@Override
public AuthenticationManager authenticationManagerBean() throws Exception {
    return super.authenticationManagerBean();
}

所以这段代码只好删除。

那么如何在service层注入生效的AuthenticationManager呢？请大佬指点不胜感激

[yangzongzhuan]

这种问题和框架无关，可以自己去网上查询一下相关资料spring security配置多个实例