详细代码以下。
<! DOCTYPE Html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
< HTML >
< HEAD >
< TITLE > 使firefox对xml的处置惩罚兼容IE的selectSingleNode selectNodes要领 </ TITLE >
< META NAME ="Author" CONTENT ="emu" >
< META NAME ="KeyWords" CONTENT ="firefox IE selectSingleNode selectNodes" >
< META NAME ="Description" CONTENT ="使firefox能够支撑selectSingleNode selectNodes要领" >
< SCRIPT LANGUAGE ="javascript" >
<!--
var isIE = !! document.all;
function parseXML(st){
if (isIE){
var result = new ActiveXObject( " microsoft.XMLDOM " );
result.loadXML(st);
} else {
var parser = new DOMParser();
var result = parser.parseFromString(st, " text/xml " );
}
return result;
}
if ( ! isIE){
var ex;
XMLDocument.PRototype.__proto__.__defineGetter__( " xml " , function (){
try {
return new XMLSerializer().serializeToString( this );
} catch (ex){
var d = document.createElement( " div " );
d.appendChild( this .cloneNode( true ));
return d.innerHTML;
}
});
Element.prototype.__proto__.__defineGetter__( " xml " , function (){
try {
return new XMLSerializer().serializeToString( this );
} catch (ex){
var d = document.createElement( " div " );
d.appendChild( this .cloneNode( true ));
return d.innerHTML;
}
});
XMLDocument.prototype.__proto__.__defineGetter__( " text " , function (){
return this .firstChild.textContent
});
Element.prototype.__proto__.__defineGetter__( " text " , function (){
return this .textContent
});
XMLDocument.prototype.selectSingleNode = Element.prototype.selectSingleNode = function (XPath){
var x = this .selectNodes(xpath)
if ( ! x x.length < 1 ) return null ;
return x[ 0 ];
}
XMLDocument.prototype.selectNodes = Element.prototype.selectNodes = function (xpath){
var xpe = new XPathEvaluator();
var nsResolver = xpe.createNSResolver( this .ownerDocument == null ?
this .documentElement : this .ownerDocument.documentElement);
var result = xpe.evaluate(xpath, this , nsResolver, 0 , null );
var found = [];
var res;
while (res = result.iterateNext())
found.push(res);
return found;
}
}
var x = parseXML( " <people>
<person first-name=\ " eric\ "
middle-initial=\ " H\ " last-name=\ " jung\ " >
<address street=\ " 321 south st\ " city=\ " denver\ " state=\ " co\ " country=\ " usa\ " />
<address street=\ " 123 main st\ " city=\ " arlington\ " state=\ " ma\ " country=\ " usa\ " />
</person> <person first-name=\ " jed\ " last-name=\ " brown\ " >
<address street=\ " 321 north st\ " city=\ " atlanta\ " state=\ " ga\ " country=\ " usa\ " />
<address street=\ " 123 west st\ " city=\ " seattle\ " state=\ " wa\ " country=\ " usa\ " />
<address street=\ " 321 south avenue\ " city=\ " denver\ " state=\ " co\ " country=\ " usa\ " />
</person></people> " );
alert( " 搜刮一切人的姓氏（last-name） " )
var results = x.selectNodes( " //person/@last-name " );
for ( var i = 0 ; i < results.length;i ++ )
alert( " Person # " + i + " has the last name " + results[i].nodeValue);
alert( " 搜刮第二个人 " );
// IE是以0为下标基数的，而不是1
if ( ! document.all)
results = x.selectSingleNode( " /people/person[2] " );
else
results = x.selectSingleNode( " /people/person[1] " );
alert(results.xml)
alert( " 取得住址在donver街上的人 " );
results = x.selectNodes( " //person[address/@city='denver'] " );
for ( var i = 0 ; i < results.length;i ++ )alert(results[i].xml)
if ( ! document.all){
// 取得一切街名中带south的地点
results = x.selectNodes( " //address[contains(@street, 'south')] " );
alert(results[ 0 ].xml);
} else {
alert( " IE不支撑 //address[contains(@street, 'south')] 这类查询体式格局 " )
}
// -->
</ SCRIPT >
</ HEAD >
< BODY >
</ BODY >
</ HTML >
从例子能够看到，IE对xpath的支撑照样有限制的。
以上就是FireFox对XML的处置惩罚兼容IE的节点处置惩罚要领的内容，更多相关内容请关注ki4网（www.ki4.cn）！
