使用Spring授权标签检查用户是否登录时出错?
2022-09-04 05:22:55
尝试测试以查看用户是否已登录,我正在使用以下代码:
<%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
<sec:authorize access="isAuthenticated()">
YES, you are logged in!
</sec:authorize>
但是我得到了以下错误?
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)