Shiro之标签

在使用Shiro标签库前，首先需要在JSP引入Shiro标签：

<%@ taglib prefix="shiro" uri="http://shiro.apache.org/tags" %>

guest标签：验证当前用户是否为“访客”，即未认证（包含未记住）的用户

<shiro:guest> 

    Hi there!  Please <a href="login.jsp">Login</a> or <a href="signup.jsp">Signup</a> today! 

</shiro:guest>

user标签：认证通过或已记住的用户

<shiro:user> 

    Welcome back John!  Not John? Click <a href="login.jsp">here<a> to login. 

</shiro:user>

authenticated标签：已认证通过的用户。不包含已记住的用户，这是与user标签的区别所在

<shiro:authenticated> 

    <a href="updateAccount.jsp">Update your contact information</a>. 

</shiro:authenticated>

notAuthenticated标签：未认证通过用户，与authenticated标签相对应。与guest标签的区别是，该标签包含已记住用户

<shiro:notAuthenticated> 

    Please <a href="login.jsp">login</a> in order to update your credit card information. 

</shiro:notAuthenticated>

principal 标签：输出当前用户信息，通常为登录帐号信息

Hello, <shiro:principal/>, how are you today?

hasRole标签：验证当前用户是否属于该角色

<shiro:hasRole name="administrator"> 

    <a href="admin.jsp">Administer the system</a> 

</shiro:hasRole>

lacksRole标签：与hasRole标签逻辑相反，当用户不属于该角色时验证通过

<shiro:lacksRole name="administrator"> 

    Sorry, you are not allowed to administer the system. 

</shiro:lacksRole>

hasAnyRole标签：验证当前用户是否属于以下任意一个角色

<shiro:hasAnyRoles name="developer, project manager, administrator"> 

    You are either a developer, project manager, or administrator. 

</shiro:hasAnyRoles>

hasPermission标签：验证当前用户是否拥有指定权限

<shiro:hasPermission name="user:create"> 

    <a href="createUser.jsp">Create a new User</a> 

</shiro:hasPermission>

lacksPermission标签：与hasPermission标签逻辑相反，当前用户没有制定权限时，验证通过

<shiro:lacksPermission name="user:create"> 

    <a href="createUser.jsp">Create a new User</a> 

</shiro:lacksPermission>

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