jquery.cookie.js结合asp.net实现最近浏览记录

浏览数：30 / 时间：2015年06月09日

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>最近浏览记录</title>
<script type="text/javascript" src="/scripts/jquery/jquery-1.10.2.min.js"></script>
<script src="/scripts/json.js" type="text/javascript"></script>
<script src="/scripts/jquery/jquery.cookie.js" type="text/javascript"></script>
<script>
    (function ($) {
         
        $.history = function (e) {
            var e = $.extend({
                cookieName: "PrdIDCookie",   //cookie名称
                nid: 100,                          //最新访问的商品ID
                N: 5                        //设置cookie保存的浏览记录的条数
            }, e)
            var fn = {
                cutstr:function(str, len, chr) {
                    var temp;
                    var icount = 0;
                    var patrn = /[^\x00-\xff]/;
                    var strre = "";
                    for (var i = 0; i < str.length; i++) {
                        if (icount < len - 1) {
                            temp = str.substr(i, 1);
                            if (patrn.exec(temp) == null) {
                                icount = icount + 1
                            } else {
                                icount = icount + 2
                            }
                            strre += temp
                        } else {
                            break
                        }
                    }
                    return typeof(chr)=="undefined"? strre:strre + chr;
                },
                //记录最近浏览过的商品
                record: function () {
                    var _historyp;
                    if ($.cookie(e.cookieName) == null) {                                //cookie 不存在
                        $.cookie(e.cookieName, e.nid, { expires: 7, path: ‘/‘ });       //创建新的cookie,保存浏览记录
                    } else {                                                            //cookies已经存在
                        _historyp = $.cookie(e.cookieName);                             //获取浏览过的商品编号ID
                    };
                    var pArray = _historyp.split(‘,‘);                                  //分解字符串为数组
                    _historyp = e.nid;                                                  //最新访问的商品编号放置载最前面
                    var count = 0;                                                      //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] != e.nid) {
                            _historyp = _historyp + "," + pArray[i];
                            count++;
                            if (count == e.N - 1) {
                                break;
                            }
                        }
                    }
                    $.cookie(e.cookieName, _historyp);      //修改cookie的值
                },
                bind: function () {                          //获取最近浏览过的商品
                    var _historyp = "";
                    if ($.cookie(e.cookieName) != null) {     //cookie 不存在 
                        _historyp = $.cookie(e.cookieName);   //获取浏览过的商品ID 
                    }
                    if (_historyp == null && _historyp == "") {
                        return;
                    } else {
                        var prdIDs = [];   //将商品ID以列表或数据的方式保存 
                        var pArray = _historyp.split(‘,‘);
                        for (var i = 0; i < pArray.length; i++) {
                            if (pArray[i] != "") {
                                //alert(pArray[i]); 
                                prdIDs.push(pArray[i]);
                            }
                        }
                        //--->请求商品详细详细... 
                        $.post(‘/tools/submit_ajax.ashx?action=get_history_log‘, { id_arr: prdIDs.toString() }, function (data) {
                            var data = JSON.parse(data);
                            var list = ‘‘;
                            if (data) {
                                for (var i = 0; i < data.length; i++) {
                                    list += ‘<li><a href="/fy/show/‘ + data[i].id + ‘.html"><font style="color:#0041d9">‘ + fn.cutstr(data[i].title,20) + ‘</font>-<font style="color:#ff6600">‘ + data[i].price + ‘元/平米.天</font></a></li>‘;
                                }
                            }
                            $("#history_log").html(list);
                        });
                    }
                }
            }
            return fn;
        }
    })(jQuery)
    $.history({
        cookieName: "PrdIDCookie",  
        nid: 1628,                    
        N: 5                       
    }).record();
    $.history().bind();
</script>
</head>
 
<body>
<ul id="history_log"></ul>
</body>
</html>

private void get_history_log(HttpContext context)
        {
            string id = DTRequest.GetFormString("id_arr");
            DataTable dt = new BLL.article().Getdata_List("housing", 5, "id in(" + id + ")", "sort_id asc").Tables[0];
            var list = new List<object>();
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                DataRow dr = dt.Rows[i];
                list.Add(new { id = dr["id"], title = dr["title"], price = dr["price"] });
            }
            context.Response.Write(new JavaScriptSerializer().Serialize(list));
            return;
        }