<result name="login" type="redirectAction">back/login/login_show?areaid=${areaid}</result>
<interceptor-ref name="defaultStack"></interceptor-ref>
<interceptor-ref name="backAuthorizationStack"></interceptor-ref>
${areaid}部分获取action中的参数值,
<interceptor-ref name="defaultStack"></interceptor-ref>
<interceptor-ref name="backAuthorizationStack"></interceptor-ref>
顺序必须先defaultStack否则不好用！