jquery 异步请求
1、js代码
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$.ajax({ async: true, // 默认true(异步请求) cache: false, // 默认true,设置为 false 将不会从浏览器缓存中加载请求信息。 type: "POST", // 默认:GET 请求方式:[POST/GET] dataType: "xml", //默认["xml"/"html"] 返回数据类型:["xml" / "html" / "script" / "json" / "jsonp"] url: "/Manage/Handler/ChannelHandler.ashx?type="+type+"&Group="+GroupId, // 默认当前地址,发送请求的地址 error: function(xml) { window.location="/Manage/Index.aspx"; }, // 请求失败时调用 timeout: 100000, // 设置请求超时时间 success: function(xml) { // 请求成功后回调函数 参数:服务器返回数据,数据格式. // 用Jquery处理xml数据 $(xml).find("GroupChannel").each(function(){ var $GroupChannel = $(this); var GroupId = $GroupChannel.find('GroupId').text(); var ChannelId = $GroupChannel.find('ChannelId').text(); var ChannelEName = $GroupChannel.find('ChannelEName').text(); var ChannelCName = $GroupChannel.find('ChannelCName').text(); var ChannelUrl = $GroupChannel.find('ChannelUrl').text(); var ChannelTarget = $GroupChannel.find('ChannelTarget').text(); var ChannelIsSys = $GroupChannel.find('ChannelIsSys').text(); var ChannelParentId = $GroupChannel.find('ChannelParentId').text(); var ChannelDepthId = $GroupChannel.find('ChannelDepthId').text(); var ChannelOrder = $GroupChannel.find('ChannelOrder').text(); var html = '<li style="list-style:none;padding-left:5px;"><img src="Content/Blue/Images/menu_dot_21.gif" alt="" border="0"><a class="menulist" href=' + ChannelUrl + ' target=' + ChannelTarget + '>' + ChannelCName + '</a></li>'; $("#menuNavi_id").append($(html)); }); } });
asxh 代码
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int ChannelParentId = int.Parse(context.Request["type"].ToString()); int GroupId = int.Parse(context.Request["Group"].ToString()); context.Response.ContentType = "text/xml"; context.Response.Charset = "utf-8"; string xml = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>"; xml += "<GroupChannels>"; IList<ChannelInfo> items = ChannelBLL.GetChannelList(""," where ChannelParentId=" + ChannelParentId + " and ChannelId in (select ChannelId from bz_GroupChannel where GroupId=" + GroupId + ") order by ChannelOrder"); foreach (ChannelInfo item in items) { xml += "<GroupChannel>"; xml += "<ChannelId>" + item.ChannelId + "</ChannelId>"; xml += "<ChannelEName>" + item.ChannelEName + "</ChannelEName>"; xml += "<ChannelCName>" + item.ChannelCName + "</ChannelCName>"; xml += "<ChannelIco>" + item.ChannelIco + "</ChannelIco>"; xml += "<ChannelUrl>" + item.ChannelUrl + "</ChannelUrl>"; xml += "<ChannelTarget>" + item.ChannelTarget + "</ChannelTarget>"; xml += "<ChannelIsSys>" + item.ChannelIsSys + "</ChannelIsSys>"; xml += "<ChannelParentId>" + item.ChannelParentId + "</ChannelParentId>"; xml += "<ChannelDepthId>" + item.ChannelDepth + "</ChannelDepthId>"; xml += "<ChannelOrder>" + item.ChannelOrder + "</ChannelOrder>"; xml += "</GroupChannel>"; } xml += "</GroupChannels>"; context.Response.Write(xml);
2.js代码
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//获取图书列表并绑定到booklist function GetBookList(pageIndex) { $.ajaxSetup({ async: false }); $.ajaxSetup({ cache: true }); $.ajaxSetup({ error: function(data) { alert("请求超时!") } }); $.ajaxSetup({ timeout: 180000}); $.getJSON('/SearchResult/handler/CoffeeHandler.ashx?callback=?', { PageIndex: pageIndex, PageSize: pageSize, keys: decodeURI(GetQueryString("CoffeeName")) }, function(data) { $(".bo").empty(); $(".bo").remove(); if (iBookCount == 0) { $("#showBook").hide(); $("#tishi").show(); } $("#userTemplate").render(data).appendTo("#bookList"); }); }
asxh
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if (!string.IsNullOrEmpty(context.Request["PageIndex"])) { string keys = context.Request["keys"]; string strwhere = string.Format(" Type=4 and (Name like '{0}%'or KeyWords like '%{1}%') ", keys, keys ); int iPageIndex = int.Parse(context.Request["PageIndex"]); PageListInfo pli = new PageListInfo();//分页对象 pli.tblName = "bz_ZhuangYuanInfo"; pli.fldName = @"Logo,Name,Address,Tel,ZhuangYuanInfoId,Type"; pli.fldSort = "ZhuangYuanInfoId"; pli.KeyID = "ZhuangYuanInfoId"; pli.Sort = false; pli.strWhere = "and" + strwhere;//查询where语句 pli.currentPageIndex = iPageIndex; pli.PageSize = int.Parse(context.Request["PageSize"]); PageListInfo plii = PageListBLL.GetPageList(pli); JavaScriptSerializer json = new JavaScriptSerializer(); IList<Dictionary<string, string>> items = new List<Dictionary<string, string>>(); foreach (DataRow dr in plii.ReturnTable.Rows) { Dictionary<string, string> item = new Dictionary<string, string>(); item.Add("Logo", dr["Logo"].ToString()); item.Add("Name", dr["Name"].ToString()); item.Add("Address", dr["Address"].ToString()); item.Add("Tel", dr["Tel"].ToString()); item.Add("ZhuangYuanInfoId", dr["ZhuangYuanInfoId"].ToString()); items.Add(item); } // sResult = json.Serialize(items); sResult = context.Request["callback"] + "(" + json.Serialize(items) + ")"; } context.Response.Write(sResult); context.Response.End();