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js获取当前域名的方法

<p>&nbsp;</p>
<p><strong>一、获取当前域名</strong></p>
<p><strong>1、方法一</strong></p>
<p>  <span class="ll">var&nbsp;domain = document.domain;</span></p>
<p><span class="ll">&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;window.location.hostname</span></p>
<p><strong>2、方法二</strong></p>
<p>  <span class="ll">var&nbsp;domain = window.location.host;</span></p>
<p><span class="ll">但是获取到的domain在线上环境中是域名,在本地环境是ip地址,所以写了一下js代码</span></p>
<p><br>var domain = document.domain;<br>var ip = /^(\d+)\.(\d+)\.(\d+)\.(\d+)$/;<br>var path = (ip.test(domain))?("http://"+domain+":8088/SINA"):("http://"+document.domain);<br>console.log(path);</p>
<p>&nbsp;</p>
<h3> 二、获取当前Url的4种方法</h3>
<p>  <span class="ll">var&nbsp;url = window.location.href;</span></p>
<p>  <span class="ll">var&nbsp;url = self.location.href;</span></p>
<p>  <span class="ll">var&nbsp;url = document.URL;</span></p>
<p>  <span class="ll">var&nbsp;url = document.location;</span></p>
<p>  ie 地址栏显示的是什么,获取到的 url 就是什么。</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<h3>  三、获取当前相对路径的方法</h3>
<p>  首先获取 Url,然后把 Url 通过 // 截成两部分,再从后一部分中截取相对路径。如果截取到的相对路径中有参数,则把参数去掉。</p>
<p>  <span class="ll">function&nbsp;GetUrlRelativePath()<br>  {<br>    <span class="ll">var&nbsp;url = document.location.toString();<br>    <span class="ll">var&nbsp;arrUrl = url.split(<span class="sh">"//");</span></span></span></span></p>
<p>    <span class="ll">var&nbsp;start = arrUrl.indexOf(<span class="sh">"/");<br>    <span class="ll">var&nbsp;relUrl = arrUrl.substring(start);<span class="green">//stop省略,截取从start开始到结尾的所有字符</span></span></span></span></p>
<p>    <span class="ll">if(relUrl.indexOf(<span class="sh">"?") != -1){<br>      relUrl = relUrl.split(<span class="sh">"?");<br>    }<br>    <span class="ll">return&nbsp;relUrl;<br>  }</span></span></span></span></p>
<p>  <strong>调用方法:</strong>GetUrlRelativePath();</p>
<p>  <strong>举例:</strong>假如当前 Url 是 http// www. liangshunet. com/pub/item.aspx?t=osw7,则截取到的相对路径为:/pub/item.aspx。</p><br><br>
来源:https://www.cnblogs.com/jinglover/p/12373483.html
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