等效于已弃用的< sec:authorize> ifNotGranted属性

问题描述

如果用户没有特定角色，我想防止图像具有链接.例如

I would like to prevent an image having a link if a user does NOT have a certain role. e.g.

<sec:authorize ifNotGranted="ROLE_ACCOUNTS" ><img src="someimage.jpg"/></sec:authorize>
<sec:authorize ifAllGranted="ROLE_ACCOUNTS" ><a href="somelink.htm"><img src="someimage.jpg"/></a></sec:authorize>

但是现在不赞成使用ifNotGranted和ifAllGranted来支持访问表达式.我可以看到ifAllGranted可以复制为:

However ifNotGranted and ifAllGranted are now deprecated in favour of the access expression. I can see that ifAllGranted can be replicated with:

<sec:authorize access="hasRole('ROLE_ACCOUNTS')"><a href="somelink.htm"><img src="someimage.jpg"/></a></sec:authorize>

但是如何使用访问方法复制ifNotGranted?任何帮助将不胜感激.

But how can ifNotGranted be replicated using the access method? Any help would be greatfully appreciated.

推荐答案

可以使用!运算符来否定SpEL表达式:

SpEL expression can be negated with ! operator:

<sec:authorize access="!hasRole('ROLE_ACCOUNTS')">...</sec:authorize> 

另请参见:

• 6.春季语言(SpEL)

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