redis session共享中的序列化问题_mysql

概述今天在做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。

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：

CheckAccount = AccountBean account==request.getParameter("username"=request.getParameter("password"((username!=)&&(username.trim().equals("Jsp"((password!=)&&(password.trim().equals("1""account"="session.Jsp"="fail.Jsp" }

属性如下所示:

serialVersionUID = 1390366007623566261L String username="" String password="" .username = .password =

输出Jsp代码为：

<%=request.getSession().getId()%>
<% AccountBean account=(AccountBean)request.getSession().getAttribute("account");%><%=account.getUsername() %>
<%=account.getPassword() %>

出错原因：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

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原文地址: http://outofmemory.cn/sjk/1169113.html