如何在java类中实现这一点？

<bean id="rememberMeFilter" class=
     "org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter">
      <property name="rememberMeServices" ref="rememberMeServices"/>
      <property name="authenticationManager" ref="authenticationManager" />
    </bean>

    <bean id="rememberMeServices" class=
     "org.springframework.security.web.authentication.rememberme.TokenBasedRememberMeServices">
      <property name="userDetailsService" ref="userService"/>
      <property name="key" value="some-string"/>
    </bean>

    <bean id="rememberMeAuthenticationProvider" class=
     "org.springframework.security.authentication.RememberMeAuthenticationProvider">
      <property name="key" value="some-string"/>
    </bean>

并在java类中禁用自动配置

auto-config="false"