zoukankan html css js c++ java
使用ajax技术无刷新动态调用股票信息

新浪的财金频道一直感觉做得很好。但由于最近网速慢的缘故，查看股票信息时网页老是打不开。这几天一直在研究ajax，于是用jquery自己做了一个自动读取新浪股票实时数据的页面。
<html> 
<head> 
<title>ajax test</title> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 
<script type="text/javascript" src="jquery.js"></script> 
<script type="text/javascript">... 
function ajaxRequest()...{ 
$.ajax(...{ 
url: 'http://hq.sinajs.cn/list=sh000001,sh601939,sh600016,sh600528,sh600667,sh601390,sh601398,sh601857,sh600028', 
type: 'GET', 
dataType: 'html', 
timeout: 2000, 
success: function(response)...{ 
var stocks = response.split(';'); 
for(var i=0; i<stocks.length-1; i++)...{ 
var content = stocks[i]; 
var temp1 = content.split('=')[0]; 
var temp2 = content.split('=')[1]; 
var code = temp1.substr(temp1.length - 6, 6); 
var temp3 = temp2.replace('"', ''); 
var name = temp3.split(',')[0]; 
var tday_f = temp3.split(',')[1]; 
var yest_f = temp3.split(',')[2]; 
var curr_f = temp3.split(',')[3]; 
var temp_f = curr_f - yest_f; 
$('#a'+i).html(code); 
$('#b'+i).html(name); 
if(curr_f > yest_f) ...{ 
$('#c'+i).html("<font color='red'>" + curr_f + "</font>"); 
} else if(curr_f < yest_f) ...{ 
$('#c'+i).html("<font color='green'>" + curr_f + "</font>"); 
} else ...{ 
$('#c'+i).html(curr_f); 
} 
$('#d'+i).html(tday_f); 
$('#e'+i).html(yest_f); 
if(temp_f > 0) ...{ 
$('#f'+i).html("<font color='red'>" + temp_f.toFixed(2) + "</font>"); 
$('#g'+i).html("<font color='red'>" + ((temp_f / yest_f) * 100).toFixed(2) + "</font> % "); 
} else if(temp_f < 0) ...{ 
$('#f'+i).html("<font color='green'>" + temp_f.toFixed(2) + "</font>"); 
$('#g'+i).html("<font color='green'>" + ((temp_f / yest_f) * 100).toFixed(2) + "</font> % "); 
} else ...{ 
$('#f'+i).html(temp_f.toFixed(2)); 
$('#g'+i).html(((temp_f / yest_f) * 100).toFixed(2) + " % "); 
} 
$('#h'+i).html(temp3.split(',')[4]); 
$('#i'+i).html(temp3.split(',')[5]); 
} 
} 
}); 
} 
function pageInit() ...{ 
window.setInterval("ajaxRequest()",3000); 
} 
</script> 
<style>... 
.tr_cls {...}{ 
height:30px; 
font-size:16px; 
font-family:"Times New Roman", Times, serif; 
background-color:#FFFFCC 
} 
</style> 
</head> 
<body onLoad="pageInit();"> 
<form> 
<table width="800" border="1" align="center" cellpadding="0" cellspacing="0" bordercolor="#000000"> 
<tr bgcolor="#3399FF" height="30px"> 
<th scope="col">股票代号</th> 
<th scope="col">股票名称</th> 
<th scope="col">当前价格</th> 
<th scope="col">今日开盘</th> 
<th scope="col">昨日收盘</th> 
<th scope="col">当前差价</th> 
<th scope="col">涨跌幅度</th> 
<th scope="col">最高价格</th> 
<th scope="col">最低价格</th> 
</tr> 
<tr class="tr_cls"> 
<td align="center"><span id="a0"></span></td> 
<td align="center"><span id="b0"></span></td> 
<td align="center"><span id="c0"></span></td> 
<td align="center"><span id="d0"></span></td> 
<td align="center"><span id="e0"></span></td> 
<td align="center"><span id="f0"></span></td> 
<td align="center"><span id="g0"></span></td> 
<td align="center"><span id="h0"></span></td> 
<td align="center"><span id="i0"></span></td> 
</tr> 
<tr class="tr_cls"> 
<td align="center"><span id="a1"></span></td> 
<td align="center"><span id="b1"></span></td> 
<td align="center"><span id="c1"></span></td> 
<td align="center"><span id="d1"></span></td> 
<td align="center"><span id="e1"></span></td> 
<td align="center"><span id="f1"></span></td> 
<td align="center"><span id="g1"></span></td> 
<td align="center"><span id="h1"></span></td> 
<td align="center"><span id="i1"></span></td> 
</tr> 
<tr class="tr_cls"> 
<td align="center"><span id="a2"></span></td> 
<td align="center"><span id="b2"></span></td> 
<td align="center"><span id="c2"></span></td> 
<td align="center"><span id="d2"></span></td> 
<td align="center"><span id="e2"></span></td> 
<td align="center"><span id="f2"></span></td> 
<td align="center"><span id="g2"></span></td> 
<td align="center"><span id="h2"></span></td> 
<td align="center"><span id="i2"></span></td> 
</tr> 
<tr class="tr_cls"> 
<td align="center"><span id="a3"></span></td> 
<td align="center"><span id="b3"></span></td> 
<td align="center"><span id="c3"></span></td> 
<td align="center"><span id="d3"></span></td> 
<td align="center"><span id="e3"></span></td> 
<td align="center"><span id="f3"></span></td> 
<td align="center"><span id="g3"></span></td> 
<td align="center"><span id="h3"></span></td> 
<td align="center"><span id="i3"></span></td> 
</tr> 
<tr class="tr_cls"> 
<td align="center"><span id="a4"></span></td> 
<td align="center"><span id="b4"></span></td> 
<td align="center"><span id="c4"></span></td> 
<td align="center"><span id="d4"></span></td> 
<td align="center"><span id="e4"></span></td> 
<td align="center"><span id="f4"></span></td> 
<td align="center"><span id="g4"></span></td> 
<td align="center"><span id="h4"></span></td> 
<td align="center"><span id="i4"></span></td> 
</tr> 
<tr class="tr_cls"> 
<td align="center"><span id="a5"></span></td> 
<td align="center"><span id="b5"></span></td> 
<td align="center"><span id="c5"></span></td> 
<td align="center"><span id="d5"></span></td> 
<td align="center"><span id="e5"></span></td> 
<td align="center"><span id="f5"></span></td> 
<td align="center"><span id="g5"></span></td> 
<td align="center"><span id="h5"></span></td> 
<td align="center"><span id="i5"></span></td> 
</tr> 
<tr class="tr_cls"> 
<td align="center"><span id="a6"></span></td> 
<td align="center"><span id="b6"></span></td> 
<td align="center"><span id="c6"></span></td> 
<td align="center"><span id="d6"></span></td> 
<td align="center"><span id="e6"></span></td> 
<td align="center"><span id="f6"></span></td> 
<td align="center"><span id="g6"></span></td> 
<td align="center"><span id="h6"></span></td> 
<td align="center"><span id="i6"></span></td> 
</tr> 
<tr class="tr_cls"> 
<td align="center"><span id="a7"></span></td> 
<td align="center"><span id="b7"></span></td> 
<td align="center"><span id="c7"></span></td> 
<td align="center"><span id="d7"></span></td> 
<td align="center"><span id="e7"></span></td> 
<td align="center"><span id="f7"></span></td> 
<td align="center"><span id="g7"></span></td> 
<td align="center"><span id="h7"></span></td> 
<td align="center"><span id="i7"></span></td> 
</tr> 
<tr class="tr_cls"> 
<td align="center"><span id="a8"></span></td> 
<td align="center"><span id="b8"></span></td> 
<td align="center"><span id="c8"></span></td> 
<td align="center"><span id="d8"></span></td> 
<td align="center"><span id="e8"></span></td> 
<td align="center"><span id="f8"></span></td> 
<td align="center"><span id="g8"></span></td> 
<td align="center"><span id="h8"></span></td> 
<td align="center"><span id="i8"></span></td> 
</tr> 
</table> 
</form> 
</body> 
</html>
 
习惯用prototype的，把脚本部分的代码替换一下即可。 
复制代码 代码如下:

<script type="text/javascript" src="prototype.js"></script> 
<script type="text/javascript">... 
function ajaxRequest()...{ 
var myAjax = new Ajax.Request( 
'http://hq.sinajs.cn/list=sh000001,sh601939,sh600016,sh600528,sh600667,sh601390,sh601398,sh601857,sh600028', 
...{ 
method: 'get', 
onComplete: setData 
} 
); 
} 
function setData(response) ...{ 
var contents = response.responseText; 
var stocks = contents.split(';'); 
for(var i=0; i<stocks.length-1; i++)...{ 
var content = stocks[i]; 
var temp1 = content.split('=')[0]; 
var temp2 = content.split('=')[1]; 
var code = temp1.substr(temp1.length - 6, 6); 
var temp3 = temp2.replace('"', ''); 
var name = temp3.split(',')[0]; 
var tday_f = temp3.split(',')[1]; 
var yest_f = temp3.split(',')[2]; 
var curr_f = temp3.split(',')[3]; 
var temp_f = curr_f - yest_f; 
$('a'+i).innerHTML = code; 
$('b'+i).innerHTML = name; 
$('c'+i).innerHTML = curr_f; 
if(curr_f > yest_f) ...{ 
$('c'+i).innerHTML = "<font color='red'>" + curr_f + "</font>"; 
} else if(curr_f < yest_f) ...{ 
$('c'+i).innerHTML = "<font color='green'>" + curr_f + "</font>"; 
} else ...{ 
$('c'+i).innerHTML = curr_f; 
} 
$('d'+i).innerHTML = tday_f; 
$('e'+i).innerHTML = yest_f; 
if(temp_f > 0) ...{ 
$('f'+i).innerHTML = "<font color='red'>" + temp_f.toFixed(2) + "</font>"; 
$('g'+i).innerHTML = "<font color='red'>" + ((temp_f / yest_f) * 100).toFixed(2) + "</font> %"; 
} else if(temp_f < 0) ...{ 
$('f'+i).innerHTML = "<font color='green'>" + temp_f.toFixed(2) + "</font>"; 
$('g'+i).innerHTML = "<font color='green'>" + ((temp_f / yest_f) * 100).toFixed(2) + "</font> %"; 
} else ...{ 
$('f'+i).innerHTML = temp_f.toFixed(2); 
$('g'+i).innerHTML = ((temp_f / yest_f) * 100).toFixed(2) + " % "; 
} 
$('h'+i).innerHTML = temp3.split(',')[4]; 
$('i'+i).innerHTML = temp3.split(',')[5]; 
} 
} 
function pageInit() ...{ 
window.setInterval("ajaxRequest()",3000); 
} 
</script>
当然页面部分完全可以由脚本自动生成，以及页面动态增减股票信息等功能，就等日后修改吧。
查看全文
相关阅读:
委托
 Math方法讲解
 正则表达式判断邮件输入的是否正确
 值类型与引用类型作为参数输出的效果
 listView 控件加上选择框
 ?: ?? ？的区别
 学习思维导图之前先了解这些常识
 PDF文档如何添加图片签名
 CleanMyMac与腾讯柠檬清理软件的简单对比
 如何用思维导图MindManager制作一套学习法
原文地址：https://www.cnblogs.com/ranran/p/3709115.html