security.xml <?xml version="1.0" encoding="GBK" standalone="no" ?> <!DOCTYPE security SYSTEM "security.dtd"> <security> <!-- 初始化: 1.读入所有操作 2.读入所有角色连同角色的操作 3.读入所有用户连同用户的操作 
判断一个用户的权限: 1.取action 的 id 2.取用户所属的角色 3.判断角色是否允许 action,安全起见,禁止的优先级高过允许 4.1 允许,判断用户是否有禁止该 action 4.2 禁止,判断用户是否有允许该 action 
注: 1.disable:默认值为 false,这个属性不是必须的,表示操作是否被禁止   例如用户limitguest,本来属于 role 4,有viewuser的权限,但是disable="true"就不能用了 -->     <!--操作-->     <actions>         <action name="all" id="0" display="所有"/>         <action name="signin" id="1" display="登录"/>         <action name="signoff" id="2" display="注销"/>                  <action name="modifyselfpass" id="3" display="修改密码"/>         <action name="modifyselfinfo" id="4" display="修改信息"/>                  <action name="newuser" id="5" display="新建用户"/>         <action name="deluser" id="6" display="删除用户"/>         <action name="modifyuser" id="7" display="修改用户信息"/>         <action name="viewuser" id="8" display="查看用户信息"/>     </actions> 
    <!--角色-->     <roles>         <role name="admin" id="1" display="管理员">             <role-action id="0"/>         </role>         <role name="manager" id="2" display="经理">             <role-action id="1 2 3 4"/>             <role-action id="5" disable="true"/>         </role>         <role name="employee" id="3" display="普通员工">             <role-action id="1 2 3 4"/>         </role>         <role name="guest" id="4" display="来宾">             <role-action id="8"/>         </role>     </roles>          <!--用户-->     <users>         <user name="admin" id="1" password="admin" display="管理员" role="1 2"/>         <user name="wuyou" id="2" password="wuyou" display="吴悠" role="2 3"/>         <user name="limin" id="3" password="libo" display="李明" role="3"/>         <user name="guest" id="4" display="来宾" role="4"/>         <user name="limitguest" id="4" display="受限来宾" role="4">             <user-action id="8" disable="true"/>         </user>     </users> </security>
  security.dtd <?xml version="1.0" encoding="GBK" ?> <!--声明一个实体--> <!ENTITY % standardAttribute      "id NMTOKEN #REQUIRED name NMTOKEN #REQUIRED display CDATA #REQUIRED" > 
<!ELEMENT security (actions,roles,users)> 
<!ELEMENT actions (action+)> <!ELEMENT roles (role+)> <!ELEMENT users (user+)> 
<!ELEMENT action EMPTY> <!ELEMENT role (role-action*)> <!ELEMENT user (user-action*)> 
<!ELEMENT role-action EMPTY> <!ELEMENT user-action EMPTY> 
<!ATTLIST action %standardAttribute;> <!ATTLIST role %standardAttribute;> <!ATTLIST user  %standardAttribute;  password NMTOKEN #IMPLIED  role NMTOKENS #REQUIRED > <!ATTLIST role-action      id NMTOKENS #REQUIRED     disable (true | false) "false" > <!ATTLIST user-action      id NMTOKENS #REQUIRED     disable (true | false) "false" >  
 
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