freeecms项目中cookies的使用

cookie.js 代码:

function GetCookieVal(offset)

//获得Cookie解码后的值

{

var endstr = document.cookie.indexOf (";", offset);

if (endstr == -1)

endstr = document.cookie.length;

return unescape(document.cookie.substring(offset, endstr));//unescape解码

}

function SetCookie(name, value)

//设定Cookie值

{

var expdate = new Date();

var argv = SetCookie.arguments;

var argc = SetCookie.arguments.length;

var expires = (argc > 2) ? argv[2] : null;

var path = (argc > 3) ? argv[3] : null;

var domain = (argc > 4) ? argv[4] : null;

var secure = (argc > 5) ? argv[5] : false;

if(expires!=null) expdate.setTime(expdate.getTime() + ( expires * 1000 ));

document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires="+ expdate.toGMTString()))//escape编码

+((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain))

+((secure == true) ? "; secure" : "");

}
function DelCookie(name)

//删除Cookie

{

var exp = new Date();

exp.setTime (exp.getTime() - 1);

var cval = GetCookie (name);

document.cookie = name + "=" + cval + "; expires="+ exp.toGMTString();

}
function GetCookie(name)

//获得Cookie的原始值

{

var arg = name + "=";

var alen = arg.length;

var clen = document.cookie.length;

var i = 0;

while (i < clen)

{

var j = i + alen;

if (document.cookie.substring(i, j) == arg)

return GetCookieVal (j);

i = document.cookie.indexOf(" ", i) + 1;

if (i == 0) break;

}

return null;

} 

login.jsp中代码:

<div class="input_post">

    <input type="hidden" name="lt" value="_c3F041F78-53B9-69A5-3B3C-01BAB6E90925_k37408022-0986-F9AF-9DBB-8FBEC82968E9" />

    <input type="hidden" name="_eventId" value="submit" />

<input class="button"   name="submit" accesskey="l" value="登 录" tabindex="4" type="submit" />
</div>

<div class="input_fpwd"><input id="RememberMe" type="checkbox" name="RememberMe" onclick="RememberMeClick()"/>
　　<label for="RememberMe">在此计算机上保留登录帐号</label>
</div>

login.jsp中js代码:

 <script>

            if(GetCookie("FreeCMS_loginName")!=null&&GetCookie("FreeCMS_loginName")!=""){

                document.getElementById("RememberMe").checked=true;

            }

            if(GetCookie("FreeCMS_loginName")!=null)document.getElementById("username").value=GetCookie("FreeCMS_loginName");

            function RememberMeClick(){

                if(document.getElementById("RememberMe").checked==false){

                    //删除cookie

                    DelCookie("FreeCMS_loginName");

                }

            }

            function submitForm(){

if($.trim($("#username").val())==""){

                    alert("请输入用户名!");

                    $("#username").focus();

                    return false;

                }

                if($.trim($("#password").val())==""){

                    alert("请输入密码!");

                    $("#password").focus();

                    return false;

                }

                if($.trim($("#ValidateCode").val())==""){

                    alert("请输入验证码!");

                    $("#ValidateCode").focus();

                    return false;

                }

                if(document.getElementById("RememberMe").checked==true){

                    //设置cookie

                    SetCookie("FreeCMS_loginName",document.getElementById("username").value,60*60*24*365);

                }

                return true;

            }

            $("#username").focus();

            </script>

service中代码:

import javax.servlet.http.Cookie;

public String login(){

        try {

            //记住用户名

            if("on".equals(RememberMe)){

                Cookie cookie=new Cookie("FreeCMS_memberLoginName",EscapeUnescape.escape(member.getLoginname()));

                cookie.setMaxAge(1000*60*60*24*365);//有效时间为一年

                getHttpResponse().addCookie(cookie);

            }

            HttpSession session =getHttpSession();

            if (ValidateCode!=null && ValidateCode.equals(session.getAttribute("rand"))) {

                showMessage=memberService.checkLogin(getHttpSession(), member);

            }else {

                showMessage="验证码错误!";

            }

            if (showMessage==null || "".equals(showMessage)) {

                OperLogUtil.log(member.getLoginname(), "会员登录", getHttpRequest());

                getHttpResponse().sendRedirect("member/member_index.do");

                return null;

            }else {

                return showMessage(showMessage, forwardUrl, forwardSeconds);

            }

        } catch (Exception e) {

            DBProException(e);

            OperLogUtil.log(member.getLoginname(), "会员登录失败:"+e.toString(), getHttpRequest());

            return showMessage("出现错误:"+e.toString()+"", forwardUrl, forwardSeconds);

        }

    }

freeecms项目中cookies的使用