appFuse的笔记

来源：互联网发布：海南前景知乎编辑：程序博客网时间：2024/05/17 20:58

1、如何获得登录的用户信息

因为Spring Security包办了一切，想拿已登录的用户信息还不容易。

a、用Spring security tag：

<sec:authentication property="principal.username" />

http://static.springsource.org/spring-security/site/docs/3.0.x/reference/taglibs.html

And you can check if logged :

<sec:authorize access="isAuthenticated()">

instead of c:if

http://stackoverflow.com/questions/9048995/get-spring-security-principal-in-jsp-el-expression

http://static.springsource.org/spring-security/site/docs/3.0.x/reference/taglibs.html

b、登录后，该用户的信息被存入了SecurityContext中，可以用以下的代码获得详细的信息。

Object principal = org.springframework.security.core.context.SecurityContextHolder.getContext().getAuthentication().getPrincipal();
if (principal instanceof com.mycompany.model.User) {
com.mycoompany.model.User user = (com.dotalink.model.User)principal;
}