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catchYglr.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>catchYglr</title>
<style type="text/css">
#buyIn{
border: 2px solid red;
}
#buyIn li{
margin-bottom:10px;
}
#status li{
margin-bottom:10px;
}
</style>
</head>
<body>
<h1>抓取Y大的实时信息</h1>
<div id="buyIn">
</div>
<div id="status">
</div>
<script type="text/javascript">
var gui = require('nw.gui');
var win = gui.Window.get();
var superagent = require('superagent')
var cheerio = require('cheerio')
var url = 'xueqiu.com/6775860272';
var lastId=0,id=0,buyInCount=0,statusCount=0,index1=0;
function catchYglr(){
superagent
.get(url)
//.query('user_id=6775860272&page=1&type=&_=1441974756584')
.end(function(err,res){
if (err){
console.log("err");
return;
}
//console.log(res.text);
var $ = cheerio.load(res.text);
var str = '';
var index=0,indexLast=0;
$('script').each(function(){
var script = $(this).html();
if(script.toString().indexOf('SNB.data.statuses')>0){
str=script.toString();
}
});
//console.log(str)
index=str.indexOf("statuses")+10;
//console.log(index);
indexLast=str.lastIndexOf("maxPage")+13;
//console.log(indexLast);
str=str.slice(index,indexLast)
if(str.length<1) return;
//console.log(str);
var status=JSON.parse(str);
//排除置顶的帖子
if(status.statuses[0].type==3){
//如果是置顶，那么删除第一个数组
var ele = status.statuses.shift();
}
id=status.statuses[0].id;
//console.log(status);
//如果有新状态
if(id!=lastId){
if(status.statuses[0].type==0){
//是Y大的买入信息
console.log(status.statuses[0].description);
buyInCount++;
var buyElement = document.createElement('li');
var buyInNode = document.getElementById('buyIn');
buyElement.appendChild(document.createTextNode(buyInCount+status.statuses[0].description));
buyInNode.appendChild(buyElement);
}else{
//是其他的状态
console.log(status.statuses[0].description);
statusCount++;
var element = document.createElement('li');
var pNode = document.getElementById('status');
//element.appendChild(document.createTextNode(statusCount+" "+status.statuses[0].description));
element.innerHTML = statusCount+" "+status.statuses[0].description;
pNode.appendChild(element);
}
var new_win = gui.Window.get(
window.open("http://xueqiu.com/6775860272")
);
new_win.resizeTo(400,400);
new_win.setPosition("center");
new_win.setAlwaysOnTop(true);
}
lastId=id;
console.log(index1);
index1++;
});
}
setInterval(catchYglr,5000);
</script>
</body>
</html>