321.4. 处理身份验证和授权错误

<onException>
  <exception>org.springframework.security.authentication.AccessDeniedException</exception>
  <choice>
    <when>
      <simple>${exception.policyId} == 'user'</simple>
      <transform>
        <constant>You do not have ROLE_USER access!</constant>
      </transform>
    </when>
    <when>
      <simple>${exception.policyId} == 'admin'</simple>
      <transform>
        <constant>You do not have ROLE_ADMIN access!</constant>
      </transform>
    </when>
  </choice>
</onException>

<onException>
  <exception>org.springframework.security.authentication.AccessDeniedException</exception>
  <choice>
    <when>
      <simple>${exception.policyId} == 'user'</simple>
      <transform>
        <constant>You do not have ROLE_USER access!</constant>
      </transform>
    </when>
    <when>
      <simple>${exception.policyId} == 'admin'</simple>
      <transform>
        <constant>You do not have ROLE_ADMIN access!</constant>
      </transform>
    </when>
  </choice>
</onException>