常用JavaScript代码12
187.xmlhttp技术
<BODY> 此方法是通过XMLHTTP对象从服务器获取XML文档，示例如下。
<input type=button value="加载XML文档" onclick="getData('data.xml')" >
<script language="JavaScript" >
function getDatal(url){
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");//创建XMLHTTPRequest对象
xmlhttp.open("GET",url,false,"","");//使用HTTP GET初始化HTTP请求
xmlhttp.send("");//发送HTTP请求并获取HTTP响应
return xmlhttp.responseXML;//获取XML文档
}
</script >
</BODY>//
188.服务器端通过request.getReader()获得传入的字符串
189.在java中使用正则表达式
java.util.regex.Pattern p =
java.util.regex.Pattern.compile("\\d+|.\\d+|\\d+.\\d*|(E|\\d+E|.\\d+E|\\d+.\\d*E)((\\+|-)\\d|\\d)\\d*");
java.util.regex.Matcher m = p.matcher("12.E+3");
boolean result = m.matches();//
190.给下拉框分组
<SELECT>
<OPTGROUP LABEL="碱性金属">
<OPTION>锂 (Li)</OPTION>
<OPTION>纳 (Na)</OPTION>
<OPTION>钾 (K)</OPTION>
</OPTGROUP>
<OPTGROUP LABEL="卤素">
<OPTION>氟 (F)</OPTION>
<OPTION>氯 (Cl)</OPTION>
<OPTION>溴 (Br)</OPTION>
</OPTGROUP>
</SELECT>//
191.加注音
<RUBY>
基准文本
<RT>注音文本
</RUBY>//
192.加删除线
<S>此文本将带删除线显示。</S>//
193.取frame中的event事件
document.frames("workspace").event.keyCode//
194.是弹出方法的定义
String.prototype.trim=function()
{
return this.replace(/(^\s*)|(\s*$)/g, "");
}
alert(" ".trim)//
195.防止网页被包含
if (window != window.top)
top.location.href = location.href;//
196.让网页一直在frame里面
if(window==window.top)
{
document.body.innerHTML="<center><h1>请通过正常方式访问本页面！</h1></center>";
//window.close();
}//
197.加为首页
<SCRIPT>
function fnSet(){
oHomePage.setHomePage(location.href);
event.returnValue = false;
}
</SCRIPT>
<IE:HOMEPAGE ID="oHomePage" style="behavior:url(#default#homepage)"/>//
198.xml数据岛操作
<HTML>
<HEAD><Title>HTML中的数据岛中的记录集</Title></HEAD>
<body bkcolor=#EEEEEE text=blue bgcolor="#00FFFF">
<Table align=center width="100%"><TR><TD align="center">
<h5><b><font size="4" color="#FF0000">HTML中的XML数据岛记录编辑与添加 </font></b></h5>
</TD></TR></Table>
<HR>
酒店名称：<input type=text datasrc=#theXMLisland DataFLD=NAME size="76"><BR>
地址：<input type=text datasrc=#theXMLisland DataFLD=Address size="76"><BR>
主页：<input type=text datasrc=#theXMLisland DataFLD=HomePage size="76"><BR>
电子邮件：<input type=text datasrc=#theXMLisland DataFLD=E-Mail size="76"><BR>
电话：<input type=text datasrc=#theXMLisland DataFLD=TelePhone size="76"><BR>
级别：<input type=text datasrc=#theXMLisland DataFLD=Grade size="76"><HR>
<input id="first" TYPE=button value="<< 第一条记录" onclick="theXMLisland.recordset.moveFirst()">
<input id="prev" TYPE=button value="<上一条记录" onclick="theXMLisland.recordset.movePrevious()">
<input id="next" TYPE=button value="下一条记录>" onclick="theXMLisland.recordset.moveNext()">
<input id="last" TYPE=button value="最后一条记录>>" onclick="theXMLisland.recordset.moveLast()">
<input id="Add" TYPE=button value="添加新记录" onclick="theXMLisland.recordset.addNew()">
<XML ID="theXMLisland">
<HotelList>
<Hotel>
<Name>四海大酒店</Name>
<Address>海魂路1号</Address>
<HomePage></HomePage>
<E-Mail>master@sihaohotel.com.cn</E-Mail>
<TelePhone>(0989)8888888</TelePhone>
<Grade>五星级</Grade>
</Hotel>
<Hotel>
<Name>五湖宾馆</Name>
<Address>东平路99号</Address>
<HomePage></HomePage>
<E-Mail>web@wuhu.com.cn</E-Mail>
<TelePhone>(0979)1111666</TelePhone>
<Grade>四星级</Grade>
</Hotel>
<Hotel>
<Name>“大沙漠”宾馆</Name>
<Address>留香路168号</Address>
<HomePage></HomePage>
<E-Mail>master@dashamohotel.com.cn</E-Mail>
<TelePhone>(0989)87878788</TelePhone>
<Grade>五星级</Grade>
</Hotel>
<Hotel>
<Name>“画眉鸟”大酒店</Name>
<Address>血海飘香路2号</Address>
<HomePage></HomePage>
<E-Mail>chuliuxiang@throstlehotel.com.cn</E-Mail>
<TelePhone>(099)9886666</TelePhone>
<Grade>五星级</Grade>
</Hotel>
</HotelList>
</XML>
</body>
</HTML> //xml数据岛中添加记录
-------------------------------
The following list is a sample of the properties and methods that you use to access nodes in an XML
document.
Property/ Method Description
XMLDocument Returns a reference to the XML Document Object Model (DOM) exposed by the object.
documentElement Returns the document root of the XML document.
childNodes Returns a node list containing the children of a node (if any).
item Accesses individual nodes within the list through an index. Index values are zero-based, so
item(0) returns the first child node.
text Returns the text content of the node.
The following code shows an HTML page containing an XML data island. The data island is contained within
the <XML> element.
<HTML>
<HEAD>
<TITLE>HTML with XML Data Island</TITLE>
</HEAD>
<BODY>
<P>Within this document is an XML data island.</P>
<XML ID="resortXML">
<resorts>
<resort code='1'>Adventure Works</resort>
<resort>Alpine Ski House</resort>
</resorts>
</XML>
</BODY>
</HTML>
For an example, you can cut and paste this sample line of code:
resortXML.XMLDocument.documentElement.childNodes.item(1).text//读取页面上的XML数据岛中的数据
resortXML.documentElement.childNodes.item(0).getAttribute("code")//读取页面上的XML数据岛中的数据
resortXML.documentElement.childNodes[0].getAttribute("code")//读取页面上的XML数据岛中的数据
