Question

在从html文件解析后，我将javascript代码作为文本，并且我希望从这些字符串中获取“CurrencyCode”：“EUR”，尤其是EUR值，那么我可以通过哪种方式实现它？正则表达式？谢谢

    $(document).ready(function() {
    $('#book-simple').prepend('<div id="spinnerContainer" style="color: #224477;margin:5px 0 15px;text-align:center;"><img src="/img/spinner2.gif" />&nbsp;Cargando pol&iacute;ticas...</div>')
    $.post(
        'bridgeT.php', {
            f: 'policies',
            h: '010',
            d: '[{"RatePlanID":"BAR","RatePlanCode":"BAR-SA","RatePlanType":"BAR","RoomTypeCode":"WSTD","ExpireDate":"2014-03-22","EffectiveDate":"2014-03-21","sources":[{"RateSource":"BAR","ExpireDate":"2014-03-21","EffectiveDate":"2014-03-21","AmountAfterTax":"230.0","AmountBeforeTax":"230.0","CurrencyCode":"EUR","Discount":null}]},{"RatePlanID":"388","RatePlanCode":"388-SA","RatePlanType":"OFE","RoomTypeCode":"WSTD","ExpireDate":"2014-03-22","EffectiveDate":"2014-03-21","sources":[{"RateSource":"BAR","ExpireDate":"2014-03-21","EffectiveDate":"2014-03-21","AmountAfterTax":"230.0","AmountBeforeTax":"230.0","CurrencyCode":"EUR","Discount":{"Type":"DTO","Percent":"10.0"}}]},{"RatePlanID":"BAR","RatePlanCode":"BAR-SA","Discount":null}]}]',
            l: 'fr_FR'
        }, function(d) {

string content = html.DocumentNode.OuterHtml

此内容变量里面有javascript代码，现在我希望使用Regex来获取CurrencyCode：EUR

Answer 1

这几乎是一个有效的JSON字符串。

我不知道你是如何得到这些数据的，但很可能是通过循环输入字段的名称和值或类似的东西......无论如何。

在Javascript中执行此操作的最佳方法是使实际上是对象中'd'键值的String成为有效的JSON字符串，然后您只需获取相应的元素。

要使其成为有效的JSON字符串，您实际上只需删除最后两个字符'}]'，因为它们与字符串中的任何内容都不匹配。

要做到这一点，最好的方法是修复产生这个String的代码，但如果你不能在这里做一个简单但丑陋的方式：

var incorrectString = '[{"RatePlanID":"BAR","RatePlanCode":"BAR-SA","RatePlanType":"BAR","RoomTypeCode":"WSTD","ExpireDate":"2014-03-22","EffectiveDate":"2014-03-21","sources":[{"RateSource":"BAR","ExpireDate":"2014-03-21","EffectiveDate":"2014-03-21","AmountAfterTax":"230.0","AmountBeforeTax":"230.0","CurrencyCode":"EUR","Discount":null}]},{"RatePlanID":"388","RatePlanCode":"388-SA","RatePlanType":"OFE","RoomTypeCode":"WSTD","ExpireDate":"2014-03-22","EffectiveDate":"2014-03-21","sources":[{"RateSource":"BAR","ExpireDate":"2014-03-21","EffectiveDate":"2014-03-21","AmountAfterTax":"230.0","AmountBeforeTax":"230.0","CurrencyCode":"EUR","Discount":{"Type":"DTO","Percent":"10.0"}}]},{"RatePlanID":"BAR","RatePlanCode":"BAR-SA","Discount":null}]}]'

var correctedString = incorrectString.substring(0, incorrectString.length - 2);

然后它是微不足道的：

var rateObject = JSON.parse(correctedString)

var CurrencyCode = rateObject[0].sources[0].CurrencyCode

所有这些构建的方式让我觉得有点读Javascript和JSON对你来说是件好事。请参阅Javascript Objects和JSON.org

解析Javascript内容

1 个答案: