java怎么销毁session？

java销毁session的方法：

第一种方法：

继承SessionAware类来取得session,然后用invalidate()方法销毁

public class ExitAction extends ActionSupport implements SessionAware{
@Override
public String execute() throws Exception {
HttpServletRequest request = ServletActionContext.getRequest();
HttpSession session1 = request.getSession();
session1.invalidate();
return super.execute();
}

public void setSession(Map arg0) {


}

}

第二种方法：

用ActionContext取session,然后用clear()方法清理

public class ExitAction extends ActionSupport{

@Override
public String execute() throws Exception {
ActionContext ac = ActionContext.getContext();
Map session = ac.getSession();
session.remove("buser");
session.remove("guser");
session.remove("fuser");
return super.execute();
}

}