在WEB开发中，许多开发者都比较喜欢使用javascript来获取当前url网址，本文就此为大家总结一下比较常用获取URL的javascript实现代码，以下示例是前面为相应实现方法，后面是获取URL的效果，下面以例子讲解：

输入的网址是(没有框架)：http://localhost:81/Test/1.htm?Did=123
<br>以下为输出：
<br>
<SCRIPT>

//获取Url传过来的值
function Request(name)
{
???? new RegExp("(^|&)"+name+"=([^&]*)").exec(window.location.search.substr(1));
???? return RegExp.$2
}

thisURL = document.URL;???? // http://localhost:81/Test/1.htm?Did=123
thisHREF = document.location.href; // http://localhost:81/Test/1.htm?Did=123
thisSLoc = self.location.href;?? // http://localhost:81/Test/1.htm?Did=123
thisDLoc = document.location;?? // http://localhost:81/Test/1.htm?Did=123

thisTLoc = top.location.href;?? // http://localhost:81/Test/1.htm?Did=123
thisPLoc = parent.document.location;// http://localhost:81/Test/1.htm?Did=123
thisTHost = top.location.hostname; // localhost
thisHost = location.hostname;?? // localhost

thisU1 = window.location.protocol; // http:
thisU2 = window.location.host;?? // localhost:81
thisU3 = window.location.pathname; // /Test/1.htm

document.writeln( thisURL + "<br />");
document.writeln( thisHREF + "<br />");
document.writeln( thisSLoc + "<br />");
document.writeln( thisDLoc + "<br />");

document.writeln( thisTLoc + "<br />");
document.writeln( thisPLoc + "<br />");
document.writeln( thisTHost + "<br />");
document.writeln( thisHost + "<br />");

document.writeln( thisU1 + "<br />");
document.writeln( thisU2 + "<br />");
document.writeln( thisU3 + "<br />");

document.writeln( "Did="+Request("Did") );// Did=123
</SCRIPT>

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