先看看json返回的数据结构：
我需要遍历取出bookreno 与 title 加载到页面容器中去
首先我要取到recommendedBookList 字典结构数据，然后遍历反射到相应对象的属性
主方法这样写：
$(d.recommendedBookList).each(function(index,item){
//index指下标
//item指代对应元素内容
//this指代每一个元素对象
var bookno= item.bookrecno;
var title = item.title;
});
也可这样：
$.each(d.recommendedBookList, function (index, item) {
//index指下标
//item指代对应元素内容
//this指代每一个元素对象
var bookno= item.bookrecno;
var title = item.title;
});
具体代码如下：
<div class="con_pic picMarquee-left"> <div class="bd"> <ul class="picList"> </ul> </div> </div> <script type="text/javascript"> //var a=1; //var b=10; $.ajax({ type: "get", dataType: "json", //data: "page="+a+"&rows="+b+"&return_fmt=" + encodeURIComponent("json"), data: "page=1&rows=12&return_fmt=" + encodeURIComponent("json"), url: "/interface/BookData.cshtml", error: function (XmlHttpRequest, textStatus, errorThrown) { alert(XmlHttpRequest.responseText);}, success: function (d) { var bkinfo = ""; $.each(d.recommendedBookList, function (index, item) { //index指下标 //item指代对应元素内容 //debugger var bookno=item.bookrecno; var title =item.title; var bkurl = "http://202.121.31.35/webopac/book/" +bookno; var bkimg = "http://202.121.31.35/webopac/bscover/" +bookno; var bkli = "<li><div class='pic'><a href='http://t.zoukankan.com/" + bkurl + "' target='_blank' title='" + title + "'><img src='http://t.zoukankan.com/" + bkimg + "' /></a></div><p class='title'><a href='http://t.zoukankan.com/" + bkurl + "' target='_blank' title='" + title + "'>" +title.substr(0,5) + "</a></p></li>"; bkinfo +=bkli; }); $(".picList").html(bkinfo); jQuery(".picMarquee-left").slide({ mainCell: ".bd ul", autoPlay: true, effect: "leftMarquee", vis: 8, interTime: 50}); } }); </script>
ajax调用页面：
@using ChaoXingPMS.DBEntity; @using System.Text; @{ var page = HttpContext.Current.Request["page"]; var rows = HttpContext.Current.Request["rows"]; var return_fmt = HttpContext.Current.Request["return_fmt"]; //string _posturl = "http://202.121.31.35/webopac/recommended?page=1&rows=10&return_fmt=json"; string _posturl = "http://202.121.31.35/webopac/recommended?page=" + page + "&rows=" + rows + "&return_fmt=" +return_fmt; //通过WebRequest对象获取返回值 WebClient client = newWebClient(); client.Headers["Accept"] = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"; client.Headers["Accept-Encoding"] = "gzip,deflate,sdch"; client.Headers["HOST"] = "opac.lib.shcc.edu.cn"; client.Headers["Accept-Language"] = "zh-CN,zh;q=0.8"; client.Headers["User-Agent"] = "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.122 Safari/537.36"; client.Dispose(); string strLine = "", temp; try { Stream stream =client.OpenRead(_posturl); StreamReader sr = newStreamReader(stream); while ((temp = sr.ReadLine()) != null) { strLine +=temp; } stream.Close(); sr.Close(); } catch(Exception e) { } Response.Write(strLine); }
另附参考博客：
http://www.cnblogs.com/lovenan/archive/2012/12/07/2807190.html
JS 循环遍历JSON数据
JSON数据如：{"options":"[{"text":"王家湾","value":"9"},{"text":"李家湾","valu
e":"10"},{"text":"邵家湾","value":"13"}]"}
用js可以写成： JSON数据如：{"options":"[{"text":"王家湾","value":"9"},{"text":"李家湾","valu
e":"10"},{"text":"邵家湾","value":"13"}]"}
用js可以写成：
view plaincopy to clipboardprint?
01.var data=[{name:"a",age:12},{name:"b",age:11},{name:"c",age:13},{name:"d",age:14}];
02. for(var o in data){
03. alert(o);
04. alert(data[o]);
05. alert("text:"+data[o].name+" value:"+data[o].age );
06. }
var data=[{name:"a",age:12},{name:"b",age:11},{name:"c",age:13},{name:"d",age:14}];
for(var o in data){
alert(o);
alert(data[o]);
alert("text:"+data[o].name+" value:"+data[o].age );
}
或是
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01.<script type="text/javascript">
02.function text(){
03. var json = {"options":"[{"text":"王家湾","value":"9"},{"text":"李家湾","value":"10"},{"text":"邵家湾","value":"13"}]"}
04. json = eval(json.options)
05. for(var i=0; i<json.length; i++)
06. {
07. alert(json[i].text+" " + json[i].value)
08. }
09.}
10.</script>
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/songylwq/archive/2010/12/01/6047609.aspx
view plaincopy to clipboardprint?
01.var data=[{name:"a",age:12},{name:"b",age:11},{name:"c",age:13},{name:"d",age:14}];
02. for(var o in data){
03. alert(o);
04. alert(data[o]);
05. alert("text:"+data[o].name+" value:"+data[o].age );
06. }
var data=[{name:"a",age:12},{name:"b",age:11},{name:"c",age:13},{name:"d",age:14}];
for(var o in data){
alert(o);
alert(data[o]);
alert("text:"+data[o].name+" value:"+data[o].age );
}
或是
view plaincopy to clipboardprint?
01.<script type="text/javascript">
02.function text(){
03. var json = {"options":"[{"text":"王家湾","value":"9"},{"text":"李家湾","value":"10"},{"text":"邵家湾","value":"13"}]"}
04. json = eval(json.options)
05. for(var i=0; i<json.length; i++)
06. {
07. alert(json[i].text+" " + json[i].value)
08. }
09.}
10.</script>
window.onload = function () {
var jsJosn1 = '<%=Jsonstr%>'; //从后台获取json商品字符串
var obj = eval('(' + jsJosn1 + ')'); //将字符串转为json对象
obj = eval(obj.TableInfo);
//循环商品
for (var i = 0; i < obj.length; i++) {
//alert(obj[i].BaseProductName + " " + obj[i].BaseProductNO + " " + obj[i].OrderPrice + " " + obj[i].OrderAmount + " " + obj[i].Unit + " " + obj[i].BPID);
AddProduct(obj[i].BaseProductName, obj[i].BaseProductNO, obj[i].OrderPrice, obj[i].Unit, obj[i].OrderAmount, obj[i].BPID);
}
}
var obj = {"status":1,"bkmsg":"u6210u529f","bkdata":["u5415u5c1au5fd7","1387580400","u6dfbu52a0u8bb0u5f55"]}{"status":1,"bkmsg":"u6210u529f","bkdata":["u5415u5c1au5fd7","1387580400","u6dfbu52a0u8bb0u5f55"]},{"status":1,"bkmsg":"u6210u529f","bkdata":["u5415u5c1au5fd7","1387580400","u4ec0u4e48u4e5fu6ca1u6709"]}
ajax请求：$.ajax({ url: '/path/to/file', type: 'GET', dataType: 'json', data: {param1: 'value1'}, success: function (obj){ //遍历obj } })
返回的内容在success的函数里面，所有的遍历操作都是在这里面操作的：
for循环：
var obj ={ "status":1, "bkmsg":"u6210u529f", "bkdata":["u5415u5c1au5fd7","1387580400","u6dfbu52a0u8bb0u5f55"] } //console.log(obj.length); if (obj.status == 1) { for (var i = 0; i < obj.bkdata.length; i++) { console.log(obj.bkdata[i]); }; }else{ alert("数据有误~"); };
for in 循环：
//for in循环 for(x inobj.bkdata){ //x表示是下标，来指定变量，指定的变量可以是数组元素，也可以是对象的属性。 console.log(obj.bkdata[x]); }
//元素 each方法
if (obj.status == 1) { $(obj.bkdata).each(function(index,item){ //index指下标 //item指代对应元素内容 //this指代每一个元素对象 //console.log(obj.bkdata[index]); console.log(item); //console.log($(this)); }); }else{ alert("数据有误~"); };
//jquery each方法
$.each( obj.bkdata, function(index,item){
console.log(item);
});