Question

我有一个XML文件，其中包含包含项目列表的元素：

<recipe>
<title>Recipe 1</title>
<ingredients><li>eggs</li><li>milk</li><li>etc...</li></ingredients>
<instructions><li>break eggs</li><li>spill milk</li><li>enjoy!</li></ingredients>
</recipe>

我正在使用Visual Studio C＃XmlReader.Deserialize（）将XML反序列化为我希望看起来像这样的类：

public class recipe
{
string title;
string ingredients[];
string instructions[];
}

成分和说明的每个要素都是li标签之间的文字。

更糟糕的是，我会接受成分和说明，每个都是一个字符串，然后我可以解析li标签。

有关如何完成此任务的任何建议？

Answer 1

看起来你在代码中犯了一个小错误。你关闭/ ingredients的说明。

这应该适用于正确反序列化到类

[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = false)]
public partial class recipe
{

    private string titleField;

    private string[] ingredientsField;

    private string[] instructionsField;

    public string title
    {
        get
        {
            return this.titleField;
        }
        set
        {
            this.titleField = value;
        }
    }

    [System.Xml.Serialization.XmlArrayItemAttribute("li", IsNullable = false)]
    public string[] ingredients
    {
        get
        {
            return this.ingredientsField;
        }
        set
        {
            this.ingredientsField = value;
        }
    }

    [System.Xml.Serialization.XmlArrayItemAttribute("li", IsNullable = false)]
    public string[] instructions
    {
        get
        {
            return this.instructionsField;
        }
        set
        {
            this.instructionsField = value;
        }
    }
}

Answer 2

首先出现错误，您应该阅读<instructions>的密码。

好吧，你的xml：

<?xml version="1.0" encoding="UTF-8"?>
<recipe>
    <title>Recipe 1</title>
    <ingredients>
       <li>eggs</li>
       <li>milk</li>
       <li>etc...</li>
    </ingredients>
    <instructions>
       <li>break eggs</li>
       <li>spill milk</li>
       <li>enjoy!</li>
    </instructions>
</recipe>

您应该为您的班级使用property：

[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = false)]
public class recipe
{
    public string title { get; set; }

    [System.Xml.Serialization.XmlArrayItemAttribute("li", IsNullable = false)]
    public string[] ingredients { get; set; }

    [System.Xml.Serialization.XmlArrayItemAttribute("li", IsNullable = false)]
    public string[] instructions { get; set; }
}

我使用generator来构建此类。生成器为您的属性添加一些属性。了解他们here。

Answer 3

是的，您的xml中有错误，它应该如下所示：

<recipe>
<title>Recipe 1</title>
<ingredients>
    <li>eggs</li><li>milk</li><li>etc...</li>
</ingredients>
<instructions>
    <li>break eggs</li><li>spill milk</li><li>enjoy!</li>
</instructions>
</recipe>

另外，你的班级应该是：

[XmlRoot("recipe")]
public class Receipe
{
    [XmlElement("title")]
    public string Title { get; set; }

    [XmlArray("ingredients")]
    [XmlArrayItem("li")]
    public string[] Ingridients { get; set; }

    [XmlArray("instructions")]
    [XmlArrayItem("li")]
    public string[] Instructions { get; set; }
}

最后，代码：

var serializer = new XmlSerializer(typeof(Receipe));
var reader = new StringReader(xml);
var receipe = (Receipe)serializer.Deserialize(reader);
reader.Close();

反序列化具有<li> </li>的XML

3 个答案: