chrome插件:提取页面数据
2015-05-26 14:17
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近期在做chrome插件,需要提取页面里的一些数,简单说就是企业版微博的后台数据,因为微博不提供导出功能。
最开始是用php完成的,但是每次都需要先把页面代码保存下来,再进行提取,很麻烦。chrome插件可以和页面DOM交互,看起来很方便,所以开始学着写。javascript和jQuery都是边学习边写。
以下代码实现了把需要的数据提出来,需要补充xmlHttp部分。
<script type="text/javascript" charset="UTF-8" src="http://chenbinx.cn/kaiguan/jquery-2.0.2.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("span.main_title").click(function(){
console.log("执行了!");
var m=$("[class='S_line2 W_tc fst']");
time=m[0];//选取第一个节点
console.log("日期为:"+time.innerText);//why
var content=nextSibling(time);//获取兄弟节点
console.log("博文内容为:"+content.innerText);
var read=nextSibling(content);
console.log("博文阅读数为:"+read.innerText);
var zan=getFirst(nextSibling(read));//获取下一个兄弟的第一个孩子节点
console.log("转评赞为:"+zan.innerText);
var clicknum=nextSibling(zan);//获取这个孩子的下一个兄弟
console.log("短链点击为:"+clicknum.innerText);
})
})
function getFirst(elem){
for(var i=0,e;e=elem.childNodes[i++];){
if(e.nodeType==1)
return e;
}
}
//下一个兄弟节点
function nextSibling(node) {
var tempLast = node.parentNode.lastChild;
if (node == tempLast) return null;
var tempObj = node.nextSibling;
while (tempObj.nodeType != 1 && tempObj.nextSibling != null) {
tempObj = tempObj.nextSibling;
}
return (tempObj.nodeType==1)? tempObj:null;
}
//前一个兄弟节点
function prevSibling(node) {
var tempFirst = node.parentNode.firstChild;
if (node == tempFirst) return null;
var tempObj = node.previousSibling;
while (tempObj.nodeType != 1 && tempObj.previousSibling != null) {
tempObj = tempObj.previousSibling;
}
return (tempObj.nodeType==1)? tempObj:null;
}
</script>
这里把需要提取数的源代码也附上
最开始是用php完成的,但是每次都需要先把页面代码保存下来,再进行提取,很麻烦。chrome插件可以和页面DOM交互,看起来很方便,所以开始学着写。javascript和jQuery都是边学习边写。
以下代码实现了把需要的数据提出来,需要补充xmlHttp部分。
<script type="text/javascript" charset="UTF-8" src="http://chenbinx.cn/kaiguan/jquery-2.0.2.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("span.main_title").click(function(){
console.log("执行了!");
var m=$("[class='S_line2 W_tc fst']");
time=m[0];//选取第一个节点
console.log("日期为:"+time.innerText);//why
var content=nextSibling(time);//获取兄弟节点
console.log("博文内容为:"+content.innerText);
var read=nextSibling(content);
console.log("博文阅读数为:"+read.innerText);
var zan=getFirst(nextSibling(read));//获取下一个兄弟的第一个孩子节点
console.log("转评赞为:"+zan.innerText);
var clicknum=nextSibling(zan);//获取这个孩子的下一个兄弟
console.log("短链点击为:"+clicknum.innerText);
})
})
function getFirst(elem){
for(var i=0,e;e=elem.childNodes[i++];){
if(e.nodeType==1)
return e;
}
}
//下一个兄弟节点
function nextSibling(node) {
var tempLast = node.parentNode.lastChild;
if (node == tempLast) return null;
var tempObj = node.nextSibling;
while (tempObj.nodeType != 1 && tempObj.nextSibling != null) {
tempObj = tempObj.nextSibling;
}
return (tempObj.nodeType==1)? tempObj:null;
}
//前一个兄弟节点
function prevSibling(node) {
var tempFirst = node.parentNode.firstChild;
if (node == tempFirst) return null;
var tempObj = node.previousSibling;
while (tempObj.nodeType != 1 && tempObj.previousSibling != null) {
tempObj = tempObj.previousSibling;
}
return (tempObj.nodeType==1)? tempObj:null;
}
</script>
这里把需要提取数的源代码也附上
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S_txt2">博文内容</th> <th class="S_line2 S_txt2">博文阅读数</th> <th class="S_line2 S_txt2 W_tc"> <span>互动数</span> <i class="ann c1"></i> <span>转评赞</span> <i class="ann c2"></i> <span>短链点击</span> </th> <th class="S_line2 S_txt2 lst"> 操作 <span class="W_icon icon_askS" action-type="layerIcon" action-data="t=1"></span> </th> </tr> </thead> <tbody> <tr> <td class="S_line2 W_tc fst"> <p>2015-05-24 21:39</p> </td> <td class="S_line2"> <a href="http://weibo.com/1854902371/CjmjFoKBD" target="_blank" class="S_txt1">#520爱尚我# 呛口同款西班牙芭蕾新履,Pretty Ballerinas大促5折...</a> </td> <td class="S_line2">7564</td> <td class="S_line2"> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">6</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c1" style="width:2.52%;"></i> </span> </dd> </dl> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">12</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c2" style="width:5.04%;"></i> </span> </dd> </dl> </td> <td class="S_line2 lst"> <a class="S_txt1" 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<span class="stripe"> <i class="inner c2" style="width:7.14%;"></i> </span> </dd> </dl> </td> <td class="S_line2 lst"> 4000 <a class="S_txt1" href="javascript:;" action-type="extension" action-data="url=http%3A%2F%2Fpromote.vip.weibo.com%2Fpromote%3Ffrom%3De_weibo%26mid%3D3846076526535926%26ru%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats%26failRu%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats" suda-uatrack="key=DataService&value=123">推广</a> </td> </tr> <tr> <td class="S_line2 W_tc fst"> <p>2015-05-24 14:05</p> </td> <td class="S_line2"> <a href="http://weibo.com/1854902371/CjjlobuW8" target="_blank" class="S_txt1">#520爱尚我# 尚品网5周年大促,URBAN REVIVO、DAZZLE、d'zzit等...</a> </td> <td class="S_line2">13614</td> <td class="S_line2"> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">3</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c1" style="width:1.26%;"></i> </span> </dd> </dl> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">16</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c2" style="width:6.72%;"></i> </span> </dd> </dl> </td> <td class="S_line2 lst"> <a class="S_txt1" href="javascript:;" action-type="extension" action-data="url=http%3A%2F%2Fpromote.vip.weibo.com%2Fpromote%3Ffrom%3De_weibo%26mid%3D3846025942740532%26ru%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats%26failRu%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats" suda-uatrack="key=DataService&value=123">推广</a> </td> </tr> <tr> <td class="S_line2 W_tc fst"> <p>2015-05-24 12:05</p> </td> <td class="S_line2"> <a href="http://weibo.com/1854902371/CjiyGgJbX" target="_blank" class="S_txt1">#520爱尚我# 配饰对于每位爱美的MM都是必不可少的装饰品,配饰为...</a> </td> <td class="S_line2">8121</td> <td class="S_line2"> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">6</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c1" style="width:2.52%;"></i> </span> </dd> </dl> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">4</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c2" style="width:1.68%;"></i> </span> </dd> </dl> </td> <td class="S_line2 lst"> <a class="S_txt1" href="javascript:;" action-type="extension" action-data="url=http%3A%2F%2Fpromote.vip.weibo.com%2Fpromote%3Ffrom%3De_weibo%26mid%3D3845995743986969%26ru%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats%26failRu%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats" suda-uatrack="key=DataService&value=123">推广</a> </td> </tr> <tr> <td class="S_line2 W_tc fst"> <p>2015-05-24 11:23</p> </td> <td class="S_line2"> 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suda-uatrack="key=DataService&value=123">推广</a> </td> </tr> <tr> <td class="S_line2 W_tc fst"> <p>2015-05-23 15:20</p> </td> <td class="S_line2"> <a href="http://weibo.com/1854902371/CjapkE5IY" target="_blank" class="S_txt1">#520爱尚我# Furla倍受欢迎的果冻包,补!货!啦!啥都别说了,...</a> </td> <td class="S_line2">9535</td> <td class="S_line2"> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">4</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c1" style="width:1.68%;"></i> </span> </dd> </dl> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">10</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c2" style="width:4.20%;"></i> </span> </dd> </dl> </td> <td class="S_line2 lst"> <a class="S_txt1" href="javascript:;" action-type="extension" action-data="url=http%3A%2F%2Fpromote.vip.weibo.com%2Fpromote%3Ffrom%3De_weibo%26mid%3D3845682429555128%26ru%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats%26failRu%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats" suda-uatrack="key=DataService&value=123">推广</a> </td> </tr> <tr> <td class="S_line2 W_tc fst"> <p>2015-05-23 13:03</p> </td> <td class="S_line2"> <a href="http://weibo.com/1854902371/Cj9w4oWt6" target="_blank" class="S_txt1">#520爱尚我# 盘点520大促最值得购买的Bally单品,从这些单品中我...</a> </td> <td class="S_line2">9289</td> <td class="S_line2"> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">3</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c1" style="width:1.26%;"></i> </span> </dd> </dl> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">2</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c2" style="width:0.84%;"></i> </span> </dd> </dl> </td> <td class="S_line2 lst"> <a class="S_txt1" href="javascript:;" action-type="extension" action-data="url=http%3A%2F%2Fpromote.vip.weibo.com%2Fpromote%3Ffrom%3De_weibo%26mid%3D3845648165944628%26ru%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats%26failRu%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats" suda-uatrack="key=DataService&value=123">推广</a> </td> </tr> <tr> <td class="S_line2 W_tc fst"> <p>2015-05-23 11:20</p> </td> <td class="S_line2"> <a href="http://weibo.com/1854902371/Cj8PV89Ox" target="_blank" class="S_txt1">#520爱尚我# MO&CO.品牌日&尚品网店庆同庆,补货上新!全网独家...</a> </td> <td class="S_line2">7833</td> <td class="S_line2"> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">3</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c1" style="width:1.26%;"></i> </span> </dd> </dl> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">11</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c2" style="width:4.62%;"></i> </span> </dd> </dl> </td> <td class="S_line2 lst"> <a class="S_txt1" href="javascript:;" action-type="extension" action-data="url=http%3A%2F%2Fpromote.vip.weibo.com%2Fpromote%3Ffrom%3De_weibo%26mid%3D3845622031944353%26ru%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats%26failRu%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats" suda-uatrack="key=DataService&value=123">推广</a> </td> </tr> <tr> <td class="S_line2 W_tc fst"> <p>2015-05-22 17:31</p> </td> <td class="S_line2"> <a href="http://weibo.com/1854902371/Cj1Q5AC8u" target="_blank" class="S_txt1">#520爱尚我# 尚品网5周年庆大促,进入第三天啦!现在每天都有补...</a> </td> <td class="S_line2">17456</td> <td class="S_line2"> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">9</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c1" style="width:3.78%;"></i> </span> </dd> </dl> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">24</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c2" style="width:10.08%;"></i> </span> </dd> </dl> </td> <td class="S_line2 lst"> <a class="S_txt1" href="javascript:;" action-type="extension" action-data="url=http%3A%2F%2Fpromote.vip.weibo.com%2Fpromote%3Ffrom%3De_weibo%26mid%3D3845353058726406%26ru%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats%26failRu%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats" suda-uatrack="key=DataService&value=123">推广</a> </td> </tr> <tr> <td class="S_line2 W_tc fst"> <p>2015-05-22 14:42</p> </td> <td class="S_line2"> <a href="http://weibo.com/1854902371/Cj0JsviPb" target="_blank" class="S_txt1">#520爱尚我# 【520大促最值入手的9款大牌包包】炎炎夏日,对于广...</a> </td> <td class="S_line2">33647</td> <td class="S_line2"> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">238</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c1" style="width:100.00%;"></i> </span> </dd> </dl> <dl class="EM_stripe clearfix"> <dt class="W_fl W_tr">13</dt> <dd class="W_fl"> <span class="stripe"> <i class="inner c2" style="width:5.46%;"></i> </span> </dd> </dl> </td> <td class="S_line2 lst"> <a class="S_txt1" href="javascript:;" action-type="extension" action-data="url=http%3A%2F%2Fpromote.vip.weibo.com%2Fpromote%3Ffrom%3De_weibo%26mid%3D3845310507460533%26ru%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F a212 1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats%26failRu%3Dhttp%3A%2F%2Fweibo.com%2Fp%2F1006061854902371%2Fmanage%3Fiframe_url%3Dhttp%3A%2F%2Fe.weibo.com%2Fv1%2Feps%2Fdata%2Farticlestats" suda-uatrack="key=DataService&value=123">推广</a> </td> </tr> 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