C# 将 XML 反序列化为模型类错误 - <xmlns=""> 不是预期的
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【中文标题】C# 将 XML 反序列化为模型类错误 - <xmlns=""> 不是预期的【英文标题】:C# Deserialize XML to Model Class error - <xmlns=""> Not expected 【发布时间】:2021-05-15 16:42:53 【问题描述】:我正在尝试获取一个 XML 字符串并将其反序列化并将其绑定到我的 Model 类。但是我收到了这个错误:
System.InvalidOperationException :
<requisitions xmlns=''>
不是预期的
这是我调用反序列化的 C#:
var deserializer = new XmlSerializer(typeof(JobsModel),new XmlRootAttribute("requisition"));
var jobs = new JobsModel();
using (var reader = new StringReader(xmlStr))
jobs = (JobsModel)deserializer.Deserialize(reader);
我的 XML 格式如下:
<requisitions>
<requisition>
<start_date></start_date>
<end_date></end_date>
<title></title>
<precise_location>
<address1/>
<city></city>
<display_city/>
<country></country>
</precise_location>
<contract_type></contract_type>
<experience></experience>
<job_type></job_type>
</requisition>
<requisition>
<start_date></start_date>
<end_date></end_date>
<title></title>
<precise_location>
<address1/>
<city></city>
<display_city/>
<country></country>
</precise_location>
<contract_type></contract_type>
<experience></experience>
<job_type></job_type>
</requisition>
</requisitions>
我要反序列化的类是这样的:
public class JobsModel
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(IsNullable = false)]
public partial class requisition
[System.Xml.Serialization.XmlElementAttribute(DataType = "date")]
public System.DateTime start_date get; set;
[System.Xml.Serialization.XmlElementAttribute(DataType = "date")]
public System.DateTime end_date get; set;
public string title get; set;
public requisitionPrecise_location precise_location get; set;
public string contract_type get; set;
public object experience get; set;
public object job_type get; set;
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class requisitionPrecise_location
public object address1 get; set;
public string city get; set;
public object display_city get; set;
public string country get; set;
解决方案
我使用 Visual Studio 的 Paste Special
功能来生成模型。但是我出错的地方是我复制到剪贴板的 XML 只有一个 Requisition
元素。因此,如果我将有多个申请,Visual Studio 并没有按照我需要的方式生成类。
【问题讨论】:
试试:typeof(JobsModel.requisition) 为什么有嵌套类?您的 实际 XML 是什么样的,是根元素<requisitions>
,复数,包含多个子元素吗?
我使用 Visual Studio 的“Paste Special”功能来生成 JobsModel 类。我在帖子中的 XML 实际上是错误的!我会更新。顶层是 您不应该真正修改生成的类。如果需要,您可以重命名根对象。但是做一些小的改变来测试每一个。特殊粘贴 + 反序列化与该 XML 一起按预期工作。 EG
using System;
using System.IO;
using System.Xml.Serialization;
namespace ConsoleApp24
// NOTE: Generated code may require at least .NET Framework 4.5 or .NET Core/Standard 2.0.
/// <remarks/>
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
[System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = false)]
public partial class requisitions
private requisitionsRequisition[] requisitionField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("requisition")]
public requisitionsRequisition[] requisition
get
return this.requisitionField;
set
this.requisitionField = value;
/// <remarks/>
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class requisitionsRequisition
private object start_dateField;
private object end_dateField;
private object titleField;
private requisitionsRequisitionPrecise_location precise_locationField;
private object contract_typeField;
private object experienceField;
private object job_typeField;
/// <remarks/>
public object start_date
get
return this.start_dateField;
set
this.start_dateField = value;
/// <remarks/>
public object end_date
get
return this.end_dateField;
set
this.end_dateField = value;
/// <remarks/>
public object title
get
return this.titleField;
set
this.titleField = value;
/// <remarks/>
public requisitionsRequisitionPrecise_location precise_location
get
return this.precise_locationField;
set
this.precise_locationField = value;
/// <remarks/>
public object contract_type
get
return this.contract_typeField;
set
this.contract_typeField = value;
/// <remarks/>
public object experience
get
return this.experienceField;
set
this.experienceField = value;
/// <remarks/>
public object job_type
get
return this.job_typeField;
set
this.job_typeField = value;
/// <remarks/>
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class requisitionsRequisitionPrecise_location
private object address1Field;
private object cityField;
private object display_cityField;
private object countryField;
/// <remarks/>
public object address1
get
return this.address1Field;
set
this.address1Field = value;
/// <remarks/>
public object city
get
return this.cityField;
set
this.cityField = value;
/// <remarks/>
public object display_city
get
return this.display_cityField;
set
this.display_cityField = value;
/// <remarks/>
public object country
get
return this.countryField;
set
this.countryField = value;
class Program
static void Main(string[] args)
var xml = @"<requisitions>
<requisition>
<start_date></start_date>
<end_date></end_date>
<title></title>
<precise_location>
<address1/>
<city></city>
<display_city/>
<country></country>
</precise_location>
<contract_type></contract_type>
<experience></experience>
<job_type></job_type>
</requisition>
<requisition>
<start_date></start_date>
<end_date></end_date>
<title></title>
<precise_location>
<address1/>
<city></city>
<display_city/>
<country></country>
</precise_location>
<contract_type></contract_type>
<experience></experience>
<job_type></job_type>
</requisition>
</requisitions>
";
using (var reader = new StringReader(xml))
var deserializer = new XmlSerializer(typeof(requisitions), new XmlRootAttribute("requisitions"));
var r = (requisitions)deserializer.Deserialize(reader);
Console.WriteLine("Hello World!");
【讨论】:
感谢您的回答。我又试了一次,没有弄乱生成的类,它像你说的那样工作。我从 URL 获取 XML,但不知道会有多少以上是关于C# 将 XML 反序列化为模型类错误 - <xmlns=""> 不是预期的的主要内容,如果未能解决你的问题,请参考以下文章
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