这是我的xml代码。我想用Javascript在html页面中显示内容。
<businesses>
<business bfsId="" id="41481">
<advertHeader>Welding Supplies, Equipment and Service Business</advertHeader>
<Price>265000</Price>
<catalogueDescription>Extremely profitable (Sales £500k, GP £182k) business</catalogueDescription>
<keyfeature1>
Well established 25 year business with excellent trading record
</keyfeature1>
<keyfeature2>
Consistently high levels of turnover and profitability over last 5 years
</keyfeature2>
</business>
<business bfsId="" id="42701">
<broker bfsRef="1771" ref="003">Birmingham South, Wolverhampton & West Midlands</broker>
<tenure>freehold</tenure>
<advertHeader>Prestigious Serviced Office Business</advertHeader>
<Price>1200000</Price>
<reasonForSale>This is a genuine retirement sale.</reasonForSale>
<turnoverperiod>Annual</turnoverperiod>
<established>28</established>
<catalogueDescription>This well-located and long-established serviced office</catalogueDescription>
<underOffer>No</underOffer>
<image1>https://www.business-partnership.com/uploads/business/businessimg15977.jpg</image1>
<keyfeature1>other connections</keyfeature1>
<keyfeature2> Investment Opportunity</keyfeature2>
<keyfeature3>Over 6,000 sq.ft.</keyfeature3>
<keyfeature4>Well-maintained </keyfeature4>
<keyfeature5>In-house services & IT provided</keyfeature5>
</business>
</businesses>
这是要在其中打印数据的html表
<table id="MainTable"><tbody id="BodyRows"></tbody></table>
我发现以下javascript代码可在html页面中显示xml内容。对于每个<business>
元素,每行都会打印一次。对于<business>
下的子元素,有一列。
window.addEventListener("load", function() {
getRows();
});
function getRows() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.open("get", "2l.xml", true);
xmlhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
showResult(this);
}
};
xmlhttp.send(null);
}
function showResult(xmlhttp) {
var xmlDoc = xmlhttp.responseXML.documentElement;
removeWhitespace(xmlDoc);
var outputResult = document.getElementById("BodyRows");
var rowData = xmlDoc.getElementsByTagName("business");
addTableRowsFromXmlDoc(rowData,outputResult);
}
function addTableRowsFromXmlDoc(xmlNodes,tableNode) {
var theTable = tableNode.parentNode;
var newRow, newCell, i;
console.log ("Number of nodes: " + xmlNodes.length);
for (i=0; i<xmlNodes.length; i++) {
newRow = tableNode.insertRow(i);
newRow.className = (i%2) ? "OddRow" : "EvenRow";
for (j=0; j<xmlNodes[i].childNodes.length; j++) {
newCell = newRow.insertCell(newRow.cells.length);
//x[i].getElementsByTagName("ARTIST")[0].childNodes[0].nodeValue);
// var ah = getElementsByTagName("ARTIST")[0].childNodes[0].nodeValue.getElementsByTagName("advertHeader")[0]
//var advertHeader = xmlNodes[i].childNodes[j].getElementsByTagName();
if (xmlNodes[i].childNodes[j].firstChild) {
newCell.innerHTML = xmlNodes[i].childNodes[j].firstChild.nodeValue;
} else {
newCell.innerHTML = "-";
}
console.log("cell: " + newCell);
}
}
theTable.appendChild(tableNode);
}
function removeWhitespace(xml) {
var loopIndex;
for (loopIndex = 0; loopIndex < xml.childNodes.length; loopIndex++)
{
var currentNode = xml.childNodes[loopIndex];
if (currentNode.nodeType == 1)
{
removeWhitespace(currentNode);
}
if (!(/\S/.test(currentNode.nodeValue)) && (currentNode.nodeType == 3))
{
xml.removeChild(xml.childNodes[loopIndex--]);
}
}
}
此javascript代码有效。但是,如您从xml代码中看到的那样,每个<business>
元素下的子元素数量是不同的。这是原始xml文件https://alpha.business-sale.com/bfs.xml。 <business>
某个节点比其他节点具有更多的子节点。所以我得到的结果就是这样
第一行有5列,第二行有10列以上。
我想
<advertHeader>
; <Price>
和<catalogueDescription>
,以便每一行显示相等数量的列<Price>
节点的值小于10000,我不想打印
如何使用此代码
答案 0 :(得分:0)
此代码对我有用。这是完整的代码
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,height=device-height,initial-scale=1">
<title>XML display</title>
<link rel="stylesheet" href="screen.css" media="screen">
<style media="screen">
body {
background-color: #f9f9f9;
font: normal 1em / 1.5em BlinkMacSystemFont, -apple-system, 'Segoe UI', roboto, helvetica, arial, sans-serif;
}
h1,noscript {
text-align: center;
}
#mainTable {
max-width: 62.5em;
margin: auto;
border-collapse: collapse;
background-color: #fff;
}
#mainTable th, #mainTable td {
padding: 0.5em;
border: 1px solid #999;
}
</style>
</head>
<body>
<h1> XML Display</h1>
<noscript>
<p>JavaScript is required for this project</p>
</noscript>
<script>
(function( d ) {
'use strict';
var xmlhttp = new XMLHttpRequest();
xmlhttp.open('get', 'https://alpha.business-sale.com/bfs.xml', true );
xmlhttp.onreadystatechange = function() {
if ( this.readyState === 4 && this.status === 200) {
showResult( this );
}
};
xmlhttp.send( null );
function showResult( xmlhttp ) {
var xmlDoc = xmlhttp.responseXML.documentElement,
pr = xmlDoc.getElementsByTagName( 'Price' ),
ah = xmlDoc.getElementsByTagName( 'advertHeader' ),
cd = xmlDoc.getElementsByTagName( 'catalogueDescription' ),
minimumValue = 10000,
c, tl, thd, th, tb, tr, td;
tl = d.createElement( 'table' );
tl.setAttribute( 'id', 'mainTable' );
thd = d.createElement( 'thead' );
tr = d.createElement( 'tr' );
th = d.createElement( 'th' );
th.appendChild( d.createTextNode( 'Advert Header' ));
tr.appendChild( th );
th = d.createElement( 'th' );
th.appendChild( d.createTextNode( 'Price' ));
tr.appendChild( th );
th = d.createElement( 'th' );
th.appendChild( d.createTextNode( 'Catalogue Description' ));
tr.appendChild( th );
thd.appendChild( tr );
tl.appendChild( thd );
tb = d.createElement( 'tbody' );
tl.appendChild( tb );
d.body.appendChild( tl );
for ( var c = 0; c < pr.length; c ++ ) {
if ( Number( pr[c].textContent ) > minimumValue ) {
tr = d.createElement( 'tr' );
td = d.createElement( 'td' );
td.appendChild( d.createTextNode( ah[c].textContent ));
tr.appendChild( td );
td = d.createElement( 'td' );
td.appendChild( d.createTextNode( pr[c].textContent ));
tr.appendChild( td );
td = d.createElement( 'td' );
td.appendChild( d.createTextNode( cd[c].textContent ));
tr.appendChild( td );
tb.appendChild( tr );
}
}
td = d.getElementsByTagName( 'td' );
for ( c = 0; c < td.length; c ++ ) {
td[c].textContent = td[c].textContent.replace( /\amp;/g, '' );
}
}
}( document ));
</script>
</body>
</html>