Java对Cookie的操作
public ActionForward login(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
LazyValidatorForm userForm = (LazyValidatorForm) form;
log.info("UserAction:验证用户登录");
//得到用户名和密码
String username = (String) userForm.get("username");
String password = (String) userForm.get("password");
Map<String,Object> userMap = new HashMap<String,Object>();
userMap.put("userName", username);
userMap.put("userPassword", password);
//设置Cookie
int cookieDate = Integer.parseInt(userForm.get("cookieDate").toString());
if(cookieDate != 0)
{
Cookie cookie1 = new Cookie("username",username);
Cookie cookie2 = new Cookie("password",password);
if(cookieDate == 1)
{
//一天
cookie1.setMaxAge(60 * 60 * 24);
cookie2.setMaxAge(60 * 60 * 24);
}
if(cookieDate == 2)
{
//一个月
cookie1.setMaxAge(60 * 60 * 24 * 31);
cookie2.setMaxAge(60 * 60 * 24 * 31);
}
if(cookieDate == 3)
{
//一年
cookie1.setMaxAge(60 * 60 * 24 * 365);
cookie2.setMaxAge(60 * 60 * 24 * 365);
}
//把捕获来的cookies添加到响应里
response.addCookie(cookie1);
response.addCookie(cookie2);
}
User user = null;
//验证用户名和密码
if(userManager.createCriteria(Restrictions.allEq(userMap)).list().size() > 0)
{
log.info("UserAction:登录成功");
user = (User) userManager.createCriteria(Restrictions.allEq(userMap)).list().get(0);
request.getSession().setAttribute("user", user);
return mapping.findForward("success");
}
else
{
this.saveMessage(request, "login.error", "用户名或密码错误");
log.info("UserAction:登录失败");
request.setAttribute("error","username or password is wrong");
return mapping.getInputForward();
}
}登录前的跳转:
* 登录前的跳转
* @param mapping
* @param form
* @param request
* @param response
* @return
*/
public ActionForward forwardlogin(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
log.info("UserAction:登录前的跳转，Cookie处理");
//取出cookies
Cookie[] cookies = request.getCookies();
String username = null;
String password = null;
if(cookies.length != 0)
{
for(int i = 0; i < cookies.length; i ++)
{
//根据key取出值
if(cookies[i].getName().equals("username"))
{
username = cookies[i].getValue();
}
if(cookies[i].getName().equals("password"))
{
password = cookies[i].getValue();
}
}
}
request.setAttribute("username", username);
request.setAttribute("password", password);
return mapping.findForward("login");
}
前台:
< table cellpadding =0 cellspacing =0 border =0 width =98%
bgcolor =#0099cc align =center >
< tr >
< td >
< table cellpadding =6 cellspacing =1 border =0 width =100% >
< tr >
< td bgcolor =#99ccff valign =middle colspan =2 align =center >
<!-- 判断用户名或密码是否错误 -->
< logic:empty name ="error" scope ="request" >
< font color ="green" >< b > 请输入您的用户名、密码登陆 </ b ></ font >
</ logic:empty >
< logic:notEmpty name ="error" scope ="request" >
< bean:message key ="login.error" />
</ logic:notEmpty >
</ td >
</ tr >
< tr >
< td bgcolor =#f2f8ff valign =middle >
请输入您的用户名
</ td >
< td bgcolor =#f2f8ff valign =middle >
< INPUT value ="${requestScope.username}" name ="username" type =text id ="username" onblur ="return check();" >
< a href ="${ctx}/main/common/reg.jsp" > 没有注册？ </ a >
</ td >
<!-- 用户名错误提示信息 -->
< td id ="username_info" style ="color:red;position: absolute;left:550px;top:235px;" ></ td >
</ tr >
< tr >
< td bgcolor =#f2f8ff valign =middle >
请输入您的密码
</ td >
< td bgcolor =#f2f8ff valign =middle >
< INPUT value ="${requestScope.password}" name ="password" type =password id ="password" onblur ="return check();" >
< a href ="lostpass.jsp" > 忘记密码？ </ a >
</ td >
<!-- 密码错误提示信息 -->
< td id ="password_info" style ="color:red;position: absolute;left:550px;top:270px;" ></ td >
</ tr >
< tr >
< td bgcolor =#f2f8ff valign =top width =30% >
< b > Cookie 选项 </ b >
< BR >
请选择您的Cookie保存时间 < br >
下次访问可以方便输入 < br >< br />
< a href ="#" onclick ="clearCookie();" style ="color:green;" > 清空Cookies </ a >
< div id ="cookie_info" style ="color:maroon;position: absolute;left:100px;top:360px;" ></ div >
</ td >
< td bgcolor =#f2f8ff valign =middle >
< input type ="radio" id ="cookieDate" name ="cookieDate" value ="0" checked >
不保存，关闭浏览器就失效
< br >
< input type ="radio" id ="cookieDate" name ="cookieDate" value ="1" >
保存一天
< br >
< input type ="radio" id ="cookieDate" name ="cookieDate" value ="2" >
保存一月
< br >
< input type ="radio" id ="cookieDate" name ="cookieDate" value ="3" >
保存一年
< br >
</ td >
</ tr >
< input type =hidden name =comeURL
value ="#" />
< tr >
< td bgcolor =#99ccff valign =middle colspan =2 align =center >
< input type =submit name ="submit" value ="登 陆" >
</ td >
</ tr >
</ co
评论