Spring Security重定向到禁止页面（403）

我在spring-mvc应用程序之上使用spring-security。关于我正在处理的应用程序的几点要点。

1. 主页是登录页面，即/ users（）。登录菜单用作HTML下拉菜单。
2. 实现userDetailsService()而UserDetails()不是AuthenticationManager/ provider
3. 必须是没有任何角色的人才能查看主页。

现在的情况 ：

1. 将其重定向到entrypoint-ref中提到的403页。
2. 不知道如何将其重定向到user.jsp或/ users
3. 我可以在网上找到的所有示例都以某种方式显示了实现`AuthenticationManager的相同内容。一些代码：

security-context.xml

<import resource="servlet-context.xml" />

    <!-- Global Security settings -->
    <security:global-method-security pre-post-annotations="enabled" />


    <!-- Spring Security framework settings -->
    <security:http pattern="/users" use-expressions="true" auto-config="true" disable-url-rewriting="true" entry-point-ref="formAuthenticationEntryPoint">
        <security:session-management>
            <security:concurrency-control max-sessions="5" error-if-maximum-exceeded="false"/>
        </security:session-management>
        <security:intercept-url pattern="/*" requires-channel="any" access="permitAll" />
        <security:intercept-url pattern="/**" requires-channel="any" access="permitAll" />
    </security:http>
    <!-- queries to be run on data -->
    <beans:bean id="formAuthenticationEntryPoint"
                class="org.springframework.security.web.authentication.Http403ForbiddenEntryPoint"/>

    <bean id="LoginServiceImplementation" class="com.WirTauschen.service.LoginServiceImpl"></bean>

    <security:authentication-manager alias="authenticationManager">
        <security:authentication-provider user-service-ref="userDetailsService" />
    </security:authentication-manager>

</beans>

LoginServiceImpl：

@Service("userDetailsService")
public class LoginServiceImpl implements UserDetailsService{
    @Autowired private UserDao userDao;
    @Autowired private Assembler assembler;

    @Override
    @Transactional
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
            UserDetails userDetails = null;
            User user = userDao.findByName(username);
            if(user == null) { throw new UsernameNotFoundException("Wrong username or password");} //Never specify which one was it exactly
        return assembler.buildUserFromUserEntity(user);
    }
}

登录表单（包含在user.jsp中的hompage HTML代码的一部分）

<nav class="col-lg-5 col-md-5 col-sm-5">
            <ul class="pull-right">
                <li class="purple"><a href="#"><i class="icons icon-user-3"></i> Login</a>
                    <ul id="login-dropdown" class="box-dropdown">
                        <li>
                         <form id="form" action="<c:url value='/login'/>" method="POST">
                            <div class="box-wrapper">
                                <h4>LOGIN</h4>

                                <div class="iconic-input">
                                    <input type="text" placeholder="Username" name="username" id="username" value="">
                                    <i class="icons icon-user-3"></i>
                                </div>
                                <div class="iconic-input">
                                    <input type="password" placeholder="Password" name="password" id="password" value="">
                                    <i class="icons icon-lock"></i>
                                </div>
                                <input type="checkbox" id="loginremember"> <label for="loginremember">Remember me</label>
                                <br>
                                <br>
                                <div class="pull-left">
                                    <input name="submit" type="submit" class="orange" value="Login">
                                </div>
                                <div class="pull-right">
                                    <a href="#">Forgot your password?</a>
                                    <br>
                                    <a href="#">Forgot your username?</a>
                                    <br>
                                </div>
                                <br class="clearfix">
                            </div>
                            <div class="footer">
                                <h4 class="pull-left">NEW CUSTOMER?</h4>
                                <a class="button pull-right" href="create_an_account.html">Create an account</a>
                            </div>
                             </form>
                        </li>
                    </ul>
                </li>
                <li><a href="#"><i class="icons icon-lock"></i> Create an Account</a></li>
            </ul>
        </nav>

来自security-applicationContext.xml的表单登录

 <security:form-login login-page="/users" default-target-url="/users"/>

你能帮忙的话，我会很高兴。从来没有听说过弹簧安全只会是酷刑。