Question

背景我有一个简单的XML表，我无法更改，这是由第三方提供的，该类和反序列化由我们维护

问题如何让xml正确反序列化，显然需要以某种方式检查“name”属性来决定填充哪个属性，但对于我的生活我不记得如何去做这个。我们使用的当前序列化程序是' System.Xml.Serialization.XmlSerializer '，由于遗留的依赖代码，我们无法更改此内容。

XML

<result>
    <rowset name="divisions" key="accountKey" columns="accountKey,description">
      <row accountKey="1000" description="Division 1"/>
      <row accountKey="1001" description="Division 2"/>
      <row accountKey="1002" description="Division 3"/>
      <row accountKey="1003" description="Division 4"/>
      <row accountKey="1004" description="Division 5"/>
      <row accountKey="1005" description="Division 6"/>
      <row accountKey="1006" description="Division 7"/>
    </rowset>
    <rowset name="walletDivisions" key="accountKey" columns="accountKey,description">
      <row accountKey="1000" description="Wallet Division 1"/>
      <row accountKey="1001" description="Wallet Division 2"/>
      <row accountKey="1002" description="Wallet Division 3"/>
      <row accountKey="1003" description="Wallet Division 4"/>
      <row accountKey="1004" description="Wallet Division 5"/>
      <row accountKey="1005" description="Wallet Division 6"/>
      <row accountKey="1006" description="Wallet Division 7"/>
    </rowset>
</result>

类

[Serializable]
[XmlRoot("result", IsNullable = false)]
public class TestClass
{
    [XmlElement("rowset")]
    public EveXmlRowCollection<Division> Divisions { get; set; }
    [XmlElement("rowset")]
    public EveXmlRowCollection<Division> WalletDivisions { get; set; }

    [Serializable]
    [XmlRoot("row")]
    public class Division
    {
        [XmlAttribute("accountKey")]
        public int AccountKey { get; set; }

        [XmlAttribute("description")]
        public string Description { get; set; }
    }
}
public class EveXmlRowCollection<T> : Collection<T>, IXmlSerializable 
{
    //... Other, Irrelevant implementations

    public void ReadXml(XmlReader reader) {
        var serializer = new XmlSerializer(typeof (T));
        if (!reader.IsStartElement()) return;
        RowSetMeta.Name = reader.GetAttribute("name");
        RowSetMeta.Key = reader.GetAttribute("key");
        RowSetMeta.Columns = reader.GetAttribute("columns");
        reader.ReadToDescendant("row");
        while (reader.Name == "row") {
            if (reader.IsStartElement()) {
                var row = (T) serializer.Deserialize(reader);
                Items.Add(row);
            }
            reader.ReadToNextSibling("row");
        }
    }
}

Answer 1

如何分两步完成？首先，您可以在没有任何逻辑的情况下反序列化xml。只需创建合适的模型：

[XmlRoot("result")]
public class Result
{
    [XmlElement("rowset")]
    public DivisionSet[] DivisionSets { get; set; }
}

public class DivisionSet
{
    [XmlAttribute("name")]
    public string Name { get; set; }

    [XmlElement("row")]
    public Division[] Divisions { get; set; }
}

public class Division
{
    [XmlAttribute("accountKey")]
    public int AccountKey { get; set; }

    [XmlAttribute("description")]
    public string Description { get; set; }
}

使用它们去除污垢非常简单：

var serializer = new XmlSerializer(typeof(Result));
using (TextReader reader = new StringReader("...XML..."))
{
    var result = (Result)serializer.Deserialize(reader);
}

然后您可以使用C＃power创建所需的模型：

public class DeserializedAndNormilizedObject
{
    public IEnumerable<Division> Divisions { get; set; }
    public IEnumerable<Division> WalletDivisions { get; set; }
}

var obj = new DeserializedAndNormilizedObject();
var devisionsSet = result.DivisionSets.FirstOrDefault(x => x.Name == "divisions");
if (devisionsSet != null)
{
    obj.Divisions = devisionsSet.Divisions;
}
// Same for walletDivisions

由于反序列化，您将返回DeserializedAndNormilizedObject。

XmlElement按属性过滤

1 个答案: