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jquery异步请求数据

jquery异步请求数据

作者: buguge | 来源:发表于2017-06-19 19:32 被阅读102次

工具类语言真就是这样,当长时间不写,就忘的差不多了。 昨晚做了运营辅助的webform页面,兴致来了,通过ajax请求与后端交互,然后今天在一个小同学的帮助下,最终完成。
由于生产环境数据量大,涉及到分页。不想再折腾了,还是改成同步的吧。
我有怀旧情怀,在代码重构之前,做个小小记录~~

asp.net webform view

html:

<body>
    <div id="Div1" class="tableExcel">
        <div id="Div2" class="input">

            订单号:<input type="text" id="orderNo" name="orderNo" />   

            日期:<input type="text" id="startTime" name="startTime" readonly="readonly" class="runcode" style="width:100px" />

            关键字:<input type="text" id="keyword" name="keyword" class="runcode" />   

            分类:<select id="logFlag" name="logFlag" class="runcode" style="width:120px;"/> 

            <input type="button" id="btnSearch" value="查询" class="icon" />

        </div>
        <div class="table">
            <table border="0" id="OrderList" cellspacing="0" cellpadding="0">
                <tr class="th">
                    <th>时间
                    </th>
                    <th>logflag
                    </th>
                    <th>订单号
                    </th>
                    <th>duration</th>
                    <th>响应报文
                    </th>
                </tr>
            </table>
        </div>
    </div>
</body>

js:

<script src="../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript" src="../Scripts/lhgcalendar/lhgcore.lhgcalendar.min.js"></script>

<script type="text/javascript">
    Date.prototype.Format = function (fmt) { //author: meizz 
        var o = {
            "M+": this.getMonth() + 1, //月份 
            "d+": this.getDate(), //日 
            "h+": this.getHours(), //小时 
            "m+": this.getMinutes(), //分 
            "s+": this.getSeconds(), //秒 
            "q+": Math.floor((this.getMonth() + 3) / 3), //季度 
            "S": this.getMilliseconds() //毫秒 
        };
        if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
        for (var k in o)
            if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
        return fmt;
    }

    $(function () {
        $("#startTime").val(new Date().Format("yyyy-MM-dd"));

        $("#startTime").bind("click", function () {
            $.calendar({ format: 'yyyy-MM-dd', noToday: false });
        });

        $.ajax({
            url: "RequestLog.aspx/GetItem",    //后台webservice里的方法名称  
            type: "post",
            dataType: "json",
            contentType: "text/json",
            traditional: true,
            success: function (data) {
                var json = eval(data);
                var optionstring = "";
                for (var j = 0; j < json.length; j++) {
                    optionstring += "<option value=\"" + json[j] + "\" >" + json[j] + "</option>";
                }
                $("#logFlag").html("<option value=''>请选择...</option> " + optionstring);

            },
            //error: function (msg) {
            //    alert(msg);
            //}
            error: function (XMLHttpRequest, textStatus, errorThrown) {
                alert(textStatus);
            }
        });

        $("#btnSearch").click(function () {
            $.ajax({
                type: "POST",
                dataType: "text/html",
                url: "RequestLog.aspx",
                data: {
                    logFlag: $("#logFlag").val(),
                    orderNo: $("#orderNo").val(),
                    startTime: $("#startTime").val(),
                    keyword: $("#keyword").val()
                },
                success: function (result) {
                    $("#OrderList").find(".th").nextAll().remove();
                    $("#OrderList").children().append(result);

                },
                error: function (XMLHttpRequest, textStatus, errorThrown) {
                    alert(errorThrown);
                    return false;
                }
            });
        });
    })
</script>

后台.cs代码:

public partial class RequestLog : System.Web.UI.Page
{
    PaycenterRequestsBLL bll = new PaycenterRequestsBLL();
    protected void Page_Load(object sender, EventArgs e)
    {
       
        //Response.Write(Request.Url.ToString());
        if (Request.Url.ToString().IndexOf("/GetItem") != -1)
        {
            Response.ContentType = "text/json";
            Response.Clear();
            string str = new PaycenterRequestsBLL().GetLogFlagJson();
            Response.Write(str);
            Response.End();
        }

        string keyword = Request.Form["keyword"];
        string logFlag = Request.Form["logFlag"];
        string orderNo = Request.Form["orderNo"];
        string startTime = Request.Form["startTime"];

        if (!string.IsNullOrEmpty(orderNo + keyword + logFlag + startTime))
        {
            var list = bll.GetList(DateTime.Parse(startTime), logFlag, orderNo, keyword);
            string htmlFormat = "<tr class=\"td\"><td>{0}</td><td>{1}</td><td>{2}</td><td align=right>{3}</td><td align=left>{4}</td></tr>";
            string html = "";
            if (!list.Any())
            {
                html = "<tr><td colspan=5>no data</td></tr>";
            }
            else
            {
                foreach (var item in list)
                {
                    html += string.Format(htmlFormat, item.CreatedTime,
                      item.LogFlag,
                      item.OrderNo,
                      item.DurationMilliSeconds,
                      item.ResponseMsg);
                }
            }
            Response.Write(html);
            Response.End();
        }
    }
}

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