check.jsp

采用JSP+JavaBean编写的用户登录示例

<%
if(request.getParameter("txtUser").equals("admin")&& request.getParameter("txtPwd").equals("123"))
{
 Cookie c=new Cookie ("username",request.getParameter("txtUser"));
c.setMaxAge(60*60*24);//设置cookie的有效日期，单位为秒
response.addCookie(c);
session.setAttribute("username",request.getParameter("txtUser"));
response.sendRedirect("main.jsp");

}
else
{out.print("<center>用户名/密码错误！</center><br>");
out.print("<center>点击<a href='login.jsp'>返回</a>重新登陆</center>");
}

%>