C#使用重复标记反序列化XML

时间:2016-08-29 02:53:38

标签: c# xml serialization xsd deserialization

我有一个带有重复<row>标记的输入XML字符串,我试图将其反序列化为一个对象,但除了最后一行之外的所有行都会被忽略。任何帮助,将不胜感激。

例如,在反序列化之后,我得到的对象是:

object.command[0].userTable =
    {OCI.OCITable}
        colHeading: {string[3]}
        colHeadingField: {string[3]}
        row: {string[3]}
        rowField: {string[3]}

这是错误的,因为此对象中只有一行,但输入XML字符串中应该有4 <row>,如下所示:

  <?xml version="1.0" encoding="ISO-8859-1" ?> 
  <BroadsoftDocument protocol="OCI" xmlns="C" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <sessionId xmlns="">feajiofefeaij</sessionId> 
  <command echo="" xsi:type="UserGetListInServiceProviderResponse" xmlns="">
  <userTable>
      <colHeading>User Id</colHeading> 
      <colHeading>Group Id</colHeading> 
      <colHeading>Name</colHeading>
      <row>
          <col>1</col> 
          <col>A</col> 
          <col>Smith</col> 
      </row>
      <row>
          <col>2</col> 
          <col>A</col> 
          <col>John</col> 
      </row>
      <row>
          <col>3</col> 
          <col>B</col> 
          <col>James</col> 
      </row>
      <row>
          <col>4</col> 
          <col>B</col> 
          <col>Lisa</col> 
      </row>
  </userTable>
  </command>
  </BroadsoftDocument>

我进行反序列化的方式是:

MemoryStream memStream = new MemoryStream(Encoding.UTF8.GetBytes(responseString));
XmlSerializer ser = new XmlSerializer(typeof(OCIMessage));
OCIMessage response = (OCIMessage)ser.Deserialize(memStream);

xsd.exe类为OCITable类自动生成的C#类是:

[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.1")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace = "C")]
public partial class OCITable
{

    private string[] colHeadingField;
    private string[] rowField;

    [System.Xml.Serialization.XmlElementAttribute("colHeading", Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
    public string[] colHeading
    {
        get
        {
            return this.colHeadingField;
        }
        set
        {
            this.colHeadingField = value;
        }
    }

    [System.Xml.Serialization.XmlArrayAttribute(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
    [System.Xml.Serialization.XmlArrayItemAttribute("col", typeof(string), Form = System.Xml.Schema.XmlSchemaForm.Unqualified, IsNullable = false)]
    public string[] row
    {
        get
        {
            return this.rowField;
        }
        set
        {
            this.rowField = value;
        }
    }
}

1 个答案:

答案 0 :(得分:2)

主要问题是,在您的XML中,<row><col>元素是一个2d锯齿状数组:有一组包含内部的外部重复<row>元素,重复<col>个元素集,每个元素都有一个字符串值。但是在你的OCITable类中,你已将其建模为1d字符串数组:

public string[] row { get; set; }

这只允许一个<row>元素。如果在解析时遇到多个<row>元素,XmlSerializer将用更晚的值覆盖之前的值 - 这正是您所看到的。

为了捕获行和列元素的嵌套层次结构,您需要执行以下操作:

public string[][] row { get; set; }

但是,如果这样做,您将遇到C# xml serialization remove jagged array element name中描述的问题,即XmlSerializer将始终使用额外的外部容器元素序列化2d锯齿状数组,如下所示:

<row>
    <col>
        <string>a</string>
    </col>
    <col>
        <string>b</string>
    </col>
</row>

因此,这也行不通。

相反,您需要使row成员成为一个简单的中间类数组,其中包含一个字符串数组,如下所示:

[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.1")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace = "C")]
public partial class OCITable
{
    private string[] colHeadingField;

    [System.Xml.Serialization.XmlElementAttribute("colHeading", Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
    public string[] colHeading
    {
        get
        {
            return this.colHeadingField;
        }
        set
        {
            this.colHeadingField = value;
        }
    }

    [System.Xml.Serialization.XmlElement(Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
    public OCITableRow [] row { get; set; }
}

public class OCITableRow
{
    [System.Xml.Serialization.XmlElementAttribute("col", Form = System.Xml.Schema.XmlSchemaForm.Unqualified, IsNullable = false)]
    public string[] col { get; set; }
}

rowcol数组都标有[XmlElement],表示它们应序列化为没有外容器元素的重复元素序列。

使用上面定义的类,您将能够反序列化<userTable>元素。样本fiddle