如何在spring获得会话对象？

// example usagepublic static HttpSession session() {    ServletRequestAttributes attr = (ServletRequestAttributes) RequestContextHolder.currentRequestAttributes();    return attr.getRequest().getSession(true); // true == allow create}

这将由标准的spring mvc派发servlet填充，但是，如果你使用的是不同的Web框架，则需要

org.springframework.web.filter.RequestContextFilter

web.xml

编辑：作为附带问题，你实际上要做什么，我不确定你是否需要访问

HttpSession

retieveUser

UserDetailsService

SecurityContextHolder

public static UserDetails currentUserDetails(){    SecurityContext securityContext = SecurityContextHolder.getContext();    Authentication authentication = securityContext.getAuthentication();    if (authentication != null) {        Object principal = authentication.getPrincipal();        return principal instanceof UserDetails ? (UserDetails) principal : null;    }    return null;}