试图测试,看用户是否在我登录我用下面的代码:使用Spring授权标记检查用户是否已登录错误?
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
<sec:authorize access="isAuthenticated()">
YES, you are logged in!
</sec:authorize>
但我得到以下erorr?
javax.servlet.jsp.JspException: No visible WebSecurityExpressionHandler instance could be found in the application context. There must be at least one in order to support expressions in JSP 'authorize' tags.
at org.springframework.security.taglibs.authz.AuthorizeTag.getExpressionHandler(AuthorizeTag.java:100)
at org.springframework.security.taglibs.authz.AuthorizeTag.authorizeUsingAccessExpression(AuthorizeTag.java:58)
at org.springframework.security.taglibs.authz.AuthorizeTag.doStartTag(AuthorizeTag.java:48)
是的,我懂了刚才的工作。谢谢你,你是对的 – SJS 2011-03-30 15:03:20