session何时会被创建
例子: 登录函数:
// 用户登录操作
public void login(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("gb2312");
String account = request.getParameter("account");
consumerDao = new ConsumerDao();
ConsumerForm consumerForm = consumerDao.getConsumerForm(account);
if (consumerForm == null) {
request.setAttribute("information", "您输入的用户名不存在,请重新输入!");
} else if (!consumerForm.getPassword().equals(request.getParameter("password"))) {
request.setAttribute("information", "您输入的登录密码有误,请重新输入!");
} else {
request.setAttribute("form", consumerForm);
}
RequestDispatcher requestDispatcher = request.getRequestDispatcher("dealwith.jsp");
requestDispatcher.forward(request, response);
}
登录主页:
<body onselectstart="return false">
<table width="800" height="496" border="0" align="center" cellpadding="0" cellspacing="0" background="images/login.jpg">
<tr>
<td valign="top">
<table width="658" border="0">
<tr>
<td colspan="2"> </td>
</tr>
<tr>
<td width="92" height="358"> </td>
<td width="550" valign="bottom">
<form name="form1" method="post" action="ConsumerServlet?method=0&sign=0"
onSubmit="return userCheck()">
<table width="291" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td width="66" height="30">用户名:</td>
<td width="225"><input name="account" type="text" class="inputinput" id="account" size="30"></td>
</tr>
<tr>
<td height="30">密 码:</td>
<td><input name="password" type="password" class="inputinput" id="password" size="30"></td>
</tr>
<tr>
<td height="30" colspan="2" align="center"><input type="image" class="inputinputinput" src="images/land.gif">
<a href="#" onClick="javascript:document.form1.reset()"><img src="images/reset.gif"></a> <a
href="consumer/accountAdd.jsp"><img src="images/register.gif"></a></td>
</tr>
</table>
</form>
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。