redis session共享中的序列化问题

今天在做session对象存入redis（set方法）时，碰到一个空指针异常，代码如下：

public class CheckAccount extends HttpServlet {
    public void doGet(HttpServletRequest request,HttpServletResponse response)
    throws ServletException,IOException{
        HttpSession session=request.getSession();
        AccountBean account=new AccountBean();
        String username=request.getParameter("username");
        String password=request.getParameter("password");
        account.setPassword(password);
        account.setUsername(username);
        if((username!=null)&&(username.trim().equals("jsp"))){
            if((password!=null)&&(password.trim().equals("1"))){
                session.setAttribute("account", account);
                SessionService.getInstance().SaveSession(session);
                //System.out.println(session.getId());
                String logon_suc="session.jsp";
                response.sendRedirect(logon_suc);
                return ;
            }
        }
        String logon_fail="fail.jsp";
        response.sendRedirect(logon_fail);
        return;
    }
    public void doPost (HttpServletRequest request,HttpServletResponse response)
            throws ServletException,IOException{
        doGet(request,response);
    }

}

属性如下所示:

public class AccountBean {
    private static final long serialVersionUID = 1390366007623566261L;
    private String username="";
    private String password="";
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
}

输出jsp代码为：

  <body>
    <%=request.getSession().getId()%><br/>
    <% AccountBean account=(AccountBean)request.getSession().getAttribute("account");%>
    user name:<%=account.getUsername() %><br/>
    password:<%=account.getPassword() %><br/>
  </body>

出错原因：AccountBean 作为session的属性，因session继承Serializable，被持久化保存到redis中，所以作完属性的AccountBean也必须序列化才能被存入redis中。

posted on 2013-08-01 22:12 一天不进步，就是退步阅读(7781) 评论(0) 编辑收藏举报