使用 javascript 查找 xml 属性值

问题描述

如何使用 Javascript/jQuery 获取 XML 节点的属性值?

How do I get the attribute value of an XML node with Javascript / jQuery?

我正在尝试获取节点上duration属性的值，然后获取fixedValue.

I'm trying to get the value of the duration attribute on the node, then get the fixedValue.

<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>'

到目前为止，我得到了:

So far I've got:

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);
};

第二个 console.log 打印 undefined.

The second console.log prints undefined.

推荐答案

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.

The first problem I ran into is that currLoadXml is not a string. It needs to be wrapped inside single quotes.

试试下面的方法

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);
        }
    });

};