使用 javascript 查找 xml 属性值
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Find xml attribute values with javascript
提问by timmackay
How do I get the attribute value of an XML node with Javascript / jQuery?
如何使用 Javascript / jQuery 获取 XML 节点的属性值？
I'm trying to get the value of the duration attribute on the node, then get the fixedValue.
我正在尝试获取节点上的持续时间属性的值，然后获取固定值。
<loanAmount>
<interestRates>
<interestRate allowInterestOnly="true" type="variable" value="5.82"/>
<interestRate allowFixed="true" allowInterestOnly="true" duration="1" fixedInterestOnlyValue="5.7" fixedValue="5.7" variableInterestOnlyValue="5.82"/>
<interestRate allowFixed="true" allowInterestOnly="true" duration="3" fixedInterestOnlyValue="5.75" fixedValue="5.75" variableInterestOnlyValue="5.82"/>
<interestRate allowFixed="true" allowInterestOnly="true" duration="5" fixedInterestOnlyValue="6.64" fixedValue="6.56" variableInterestOnlyValue="5.82"/>
<interestRate allowFixed="true" allowInterestOnly="true" duration="10" variableInterestOnlyValue="5.82"/>
</interestRates>
</loanAmount>'
So far I've got:
到目前为止，我有：
var currentLoanRates = function() {
var currLoanXml = '<loanAmount><interestRates><interestRate allowInterestOnly="true" type="variable" value="5.82"/><interestRate allowFixed="true" allowInterestOnly="true" duration="1" fixedInterestOnlyValue="5.7" fixedValue="5.7" variableInterestOnlyValue="5.82"/><interestRate allowFixed="true" allowInterestOnly="true" duration="3" fixedInterestOnlyValue="5.75" fixedValue="5.75" variableInterestOnlyValue="5.82"/><interestRate allowFixed="true" allowInterestOnly="true" duration="5" fixedInterestOnlyValue="6.64" fixedValue="6.56" variableInterestOnlyValue="5.82"/><interestRate allowFixed="true" allowInterestOnly="true" duration="10" variableInterestOnlyValue="5.82"/></interestRates></loanAmount>',
xmlDoc = $.parseXML( currLoanXml ),
$xml = $( xmlDoc ),
$intRate = $xml.find("interestRate"),
$varIntRate = $intRate.attr("fixedValue");
console.log($intRate);
console.log($varIntRate);
};
The second console.log prints undefined.
第二个 console.log 打印undefined。
回答by Ramesh
The first problem I ran into is that currLoadXml is not a string. It needs to be wrapped inside single quotes.
我遇到的第一个问题是 currLoadXml 不是字符串。它需要用单引号括起来。
Try using the below method
尝试使用以下方法
var currentLoanRates = function() {
var currLoanXml = '<loanAmount><interestRates><interestRate allowInterestOnly="true" type="variable" value="5.82"/><interestRate allowFixed="true" allowInterestOnly="true" duration="1" fixedInterestOnlyValue="5.7" fixedValue="5.7" variableInterestOnlyValue="5.82"/><interestRate allowFixed="true" allowInterestOnly="true" duration="3" fixedInterestOnlyValue="5.75" fixedValue="5.75" variableInterestOnlyValue="5.82"/><interestRate allowFixed="true" allowInterestOnly="true" duration="5" fixedInterestOnlyValue="6.64" fixedValue="6.56" variableInterestOnlyValue="5.82"/><interestRate allowFixed="true" allowInterestOnly="true" duration="10" variableInterestOnlyValue="5.82"/></interestRates></loanAmount>',
xmlDoc = $.parseXML( currLoanXml ),
$xml = $( xmlDoc ),
$intRate = $xml.find("interestRate");
$intRate.each(function(index, element) {
if(element.attributes["duration"]) {
console.log("Duration :" + element.attributes["duration"].value);
}
if(element.attributes["fixedValue"]) {
console.log("Fixed value:" + element.attributes["fixedValue"].value);
}
});
};
回答by Ayush Nigam
For those looking out for loading the XML from an external file, this could be of some help:
对于那些希望从外部文件加载 XML 的人来说，这可能会有所帮助：
<script>
$.ajax({
url: 'sample.xml',
dataType: 'xml',
success: function (data) {
// Extract relevant data from XML
var xml_node = $('loanAmount', data);
$parameter = xml_node.find('interestRate');
$parameter.each(function (index, element) {
if (element.attributes["allowFixed"]) {
console.log("Allow Fixed : " + element.attributes["allowFixed"].value);
}
if (element.attributes["duration"]) {
console.log("Duration: " + element.attributes["duration"].value);
}
});
},
error: function (data) {
console.log('Error loading XML data');
}
});
</script>
