Question

我目前正在尝试通过将字节数组转换为XML字符串并在其上加载DOM来解析该字节数组。我的代码如下：

public static List<Purchase> ParsePurchases(Profile profile, byte[] data)
{
    // Parse the profile XML and extract purchases
    // read the data into a string
    var xmlString = System.Text.Encoding.UTF8.GetString(data);

    // create the DOM over it
    XmlDocument doc = new XmlDocument();
    doc.LoadXml(xmlString);

    // parse it
    var purchaseElements = doc.GetElementsByTagName("purchase");
    List<Purchase> purchases = new List<Purchase>();

    for(var e = 0; e < purchaseElements.Count; e++)
    {
        var ele = (XmlElement)purchaseElements[e];

        try
        {
            purchases.Add(
                new Purchase(
                    profile,
                    Int32.Parse(ele.GetAttribute("id")),
                    Int32.Parse(((XmlElement)ele.GetElementsByTagName("price")[0]).InnerText),
                    Int32.Parse(((XmlElement)ele.GetElementsByTagName("quantity")[0]).InnerText),
                        ((XmlElement)ele.GetElementsByTagName("description")[0]).InnerText
                    ));
        }
        catch
        {
            throw new ArgumentException("Var ele is null");
        }
    }
    return purchases;
}

我遇到的问题是此代码引发错误：

“根级别的数据无效，第1行，位置1”。

这是示例XML文档

<?xml version="1.0"?>
<profile username="215">
    <purchases>
        <purchase id="6271">
            <price>728</price>
            <quantity>14</quantity>
            <description>Sample</description>
        </purchase>
    </purchases>
</profile>

根级别的数据无效，行1级别1

0 个答案: