记录一个在Spring环境下获取Session的方式

对于集中式的项目，对session的管理是必须的，所以在此分享一个工具类：

 

import javax.servlet.http.HttpServletRequest;

import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import com.entity.User;

public class SpringSessionUtil {
public static final String USER_KEY = "user_key";
public static HttpServletRequest request = null;
static{
ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
request = requestAttributes.getRequest();
}
public static void setUserInSession(User user){
if(user!=null){
request.getSession().setAttribute(USER_KEY, user);
}else{
request.getSession().removeAttribute(USER_KEY);
}
}

public static User getUserInSession(){
return (User) request.getSession().getAttribute(USER_KEY);
}

}