app的token免登+shiro

大家好，问一下，app一个带token的非登录请求，shiro会判断为未登录property name="loginUrl" value="/login" /> 重定向到登录jsp，如何做到免登录不跳转到jsp且正常访问接口

我继承了FormAuthenticationFilter，重写了issueSuccessRedirect，吧第一次的请求存到了缓存，但是第二次非登录请求不能做到免登正常访问，还给重定向了。。。

如果是只访问接口的话可以设置url不走shiro过滤器达到不跳进登录页

    <!-- Shiro权限过滤过滤器定义 -->
    <bean name="shiroFilterChainDefinitions" class="java.lang.String">
        <constructor-arg>
            <value>             
                /registration/smsRegistration/** = anon
                /static/** = anon
                /userfiles/** = anon
                /updatep/** = anon
                ${commonPath}/** = user
                ${adminPath}/phone/** = anon
                ${adminPath}/cas = cas
                ${adminPath}/login = authc
                ${adminPath}/logout = anon
                ${adminPath}/** = user
                /act/rest/service/editor/** = perms[act:model:edit]
                /act/rest/service/model/** = perms[act:model:edit]
                /act/rest/service/** = user
                /ReportServer/** = user
            </value>
        </constructor-arg>
    </bean>
    <!-- 安全认证过滤器 -->
    <bean id="shiroFilter" class="org.apache.shiro.spring.web.ShiroFilterFactoryBean">
        <property name="securityManager" ref="securityManager" /> 
        <property name="loginUrl" value="${adminPath}/login" />
        <property name="successUrl" value="${adminPath}?login" />
        <property name="filters">
            <map>
                <entry key="cas" value-ref="casFilter"/>
                <entry key="authc" value-ref="formAuthenticationFilter"/>
            </map>
        </property>
        <property name="filterChainDefinitions">
            <ref bean="shiroFilterChainDefinitions"/>
        </property>
    </bean>

/static/** = anon，配置为不过滤
${commonPath}/** = user，配置为登录后的才可以访问
${adminPath}/login = authc，这个是自定义的权限