Jquery 最近浏览过的商品的功能实现代码

  <script type="text/javascript" src="JS/jquery.js"></script> //与Prototype 类似的框架

  <script type="text/javascript" src="JS/JCookie.js"></script> //插件

  

复制代码 代码如下:

  /*JCookie.js * /

  jQuery.cookie = function(name, value, options) {

  if (typeof value != 'undefined') { // name and value given, set cookie

  options = options || {};

  if (value === null) {

  value = '';

  options.expires = -1;

  }

  var expires = '';

  if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {

  var date;

  if (typeof options.expires == 'number') {

  date = new Date();

  date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));

  } else {

  date = options.expires;

  }

  expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE

  }

  var path = options.path ? '; path=' + options.path : '';

  var domain = options.domain ? '; domain=' + options.domain : '';

  var secure = options.secure ? '; secure' : '';

  document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');

  } else { // only name given, get cookie

  var cookieValue = null;

  if (document.cookie && document.cookie != '') {

  var cookies = document.cookie.split(';');

  for (var i = 0; i < cookies.length; i++) {

  var cookie = jQuery.trim(cookies[i]);

  // Does this cookie string begin with the name we want?

  if (cookie.substring(0, name.length + 1) == (name + '=')) {

  cookieValue = decodeURIComponent(cookie.substring(name.length + 1));

  break;

  }

  }

  }

  return cookieValue;

  }

  };

  

复制代码 代码如下:

  <div id="latestp"></div>

  <script type="text/javascript">

  var historyp;

  //最新访问的商品编号ID

  var nid="新商品编号ID";

  //设置cookie保存的浏览记录的条数

  var N=10;

  var count=0;

  //判断是否存在cookie

  if($.cookie('smile1314h')==null) //cookie 不存在

  {

  //创建新的cookie,保存浏览记录

  $.cookie('smile1314h',nid,{expires:7,path:'/'});

  //$.cookie('smile1314h',nid,{expires:7,path:'/',domain:'smile1314.com',secure:true});

  }

  else //cookies已经存在

  {

  //获取浏览过的商品编号ID

  historyp=$.cookie('smile1314h');

  var check_result = $('#latestp');

  check_result.html('<img src=/CSS/Image/Loading.gif style=/"margin-left:40px;;/">');

  //ajax 根据产品编号获取信息列表

  $.ajax({ //一个Ajax过程

  type: "get",

  url : "/Comm/getLatestProduct.ashx",

  dataType:'html',

  data: "P_Id="+historyp,

  success: function(json){

  check_result.html("");

  check_result.html(json);

  }});

  //分解字符串为数组

  var pArray=historyp.split(',');

  //最新访问的商品编号放置载最前面

  historyp=nid;

  //判断是该商品编号是否存在于最近访问的记录里面

  for(var i=0;i<pArray.length;i++)

  {

  if(pArray[i]!=nid)

  {

  historyp=historyp+","+pArray[i];

  count++;

  if(count==N-1)

  {

  break;

  }

  }

  }

  //修改cookie的值

  $.cookie('smile1314h',historyp);

  }

  </script>

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