反序列化时使用httpclient的Xml命名空间问题 [英] Xml namespace issue using httpclient while deserializing

问题描述

我有一个返回结果的api：

 <  信封：信封    xmlns：信封  =  http://xxx.com/data-hub/envelope >  
 <  信封：标题 >  
 <   additionalInfo  >  
 <   Rebates /  >  
 <  费用 >  930879969 <   /费用 >  
 <  月份 >  20 <  < span class =code-leadattribute> / Months  >  
 <   / additionalInfo  >  
 <   / envelope：header  >  
 <   / envelope  >  

我遇到问题：



第1行位置错误76.期望命名空间'http'中的元素'Envelope'： //schemas.datacontract.org/2004/07/'

..遇到名为'envel'的'元素' ope'，namespace'http://xxx.com/data-hub/envelope'。



我的尝试：

 使用（HttpClient client =  new  HttpClient（））
 {
  var  responseTask =  await  client.GetAsync（uri）; 
 responseTask.Wait（）; 
 
  var  result = responseTask.Result; 
  if （result.IsSuccessStatusCode）
 {
  var  readTask = result.Content.ReadAsAsync< T>（）; 
 readTask.Wait（）; 
 response = readTask.Result; 
} 
 

我在ReadAsynch收到错误< t>



我发送的T类是：

 [XmlRoot（ElementName =   envelope，Namespace =   http://xxx.com/data-hub/envelope）] 
  public   class  Envelope 
 {
 [XmlElement（ElementName =   header，Namespace =   http://xxx.com/data-hub/envelope） ] 
  public 标题标题{ get ;  set ; } 
 
 [XmlAttribute（AttributeName =   envelope，Namespace =   http://www.w3.org/2000/xmlns/）] 
  public   string  _envelope { get ;  set ; } 
} 
 

< pre lang =cs> public class 标题
{
[XmlElement（ ElementName = additionalInfo）]
public AdditionalInfo AdditionalInfo { get ; set ; }
}

 < span class =code-keyword> public   class  AdditionalInfo 
 {
 [XmlElement（ElementName =  回扣）] 
  public   string 回扣{获取;  set ; } 
 [XmlElement（ElementName =  费用）] 
  public   string 费用{ get ;  set ; } 
 [XmlElement（ElementName =  月份）] 
  public   string 月份{ get ;  set ; } 
} 
 

解决方案

正如PIEBALDconsult所提到的，关闭时XML中至少有一个错误标签：

 <  信封：信封    xmlns：envelope   =  http://xxx.com/data-hub/envelope >  
 <  信封：标题 >  
 < span class =code-keyword><   additionalInfo  >  
 <   Rebates /  >  
 <  费用 >  930879969 <   /费用 >  
 <  月份 >  20 <   /月 >  
 <   / additionalInfo  >  
 <   / envelope：header  >  
 <   / envelope：envelope  >  

另外，你正在使用混合命名空间。有两种解决方案：



1. 在开头元素中添加一个额外的命名空间定义：

 <  信封：信封    xmlns：envelope   =  http：// xxx.com/data-hub/envelope\"   
   
                                         xmlns   =  http://xxx.com/data-hub/信封 >  
 <  信封：标题 >  
 <   additionalInfo  >  
 <   Rebates /  >  
 <  费用 >  930879969 <   /费用 >  
 <  月份 >  20 <   / Months  >  
 <   / additionalInfo  >  
 <   / envelope：header  >  
 <   / envelope：envelope   >  

2。所有元素都具有相同的命名空间：

 <  信封：信封    xmlns：envelope   =  http://xxx.com/data-hub/envelope\">  
 <  信封：标题 >  
 <   envelope：additionalInfo  >  
 <   envelope：Rebates /  >  
 <  信封：费用 >  930879969 <   / envelope：费用 >  
 <   zh-CN velope：月 >  20 <   / envelope：Months  >  
 <   / envelope：additionalInfo  >  
 <   / envelope：header  >  
 <   / envelope：envelope  >  

最后， Envelope 类应该是：

 [XmlRoot（ElementName =   envelope，Namespace =   http://xxx.com/data-hub/envelope）] 
  public  类信封
 {
 [XmlElement（ElementName =   header ）] 
  public 标题标题{ get ;  set ; } 
} 

以下是用于测试的其他类的一致性：

  public   class 标题
 {
 [XmlElement（ElementName =   additionalInfo）] 
  public  AdditionalInfo AdditionalInfo {获取;  set ; } 
} 
 
  public   class  AdditionalInfo 
 { 
 [XmlElement（ElementName =   Rebates）] 
  public   string 回扣{ get ;  set ; } 
 [XmlElement（ElementName =  费用）] 
  public   string 费用{ get ;  set ; } 
 [XmlElement（ElementName =  月份）] 
  public   string 月份{ get ;  set ; } 
} 

I have a api which returns the result:

<envelope:envelope xmlns:envelope="http://xxx.com/data-hub/envelope">
<envelope:header>
<additionalInfo>
<Rebates/>
<Expenses>930879969</Expenses>
<Months>20</Months>
</additionalInfo>
</envelope:header>
</envelope>

I am getting issue :

Error in line 1 position 76. Expecting element 'Envelope' from namespace 'http://schemas.datacontract.org/2004/07/'
.. Encountered 'Element' with name 'envelope', namespace 'http://xxx.com/data-hub/envelope'.

What I have tried:

using (HttpClient client = new HttpClient())
{
    var responseTask = await client.GetAsync(uri);
    responseTask.Wait();

    var result = responseTask.Result;
    if (result.IsSuccessStatusCode)
    {
        var readTask = result.Content.ReadAsAsync<t>();
        readTask.Wait();
        response = readTask.Result;
    }

I am getting error at ReadAsynch<t>

The class T i am sending is:

[XmlRoot(ElementName = "envelope", Namespace = "http://xxx.com/data-hub/envelope")]
public class Envelope
{
    [XmlElement(ElementName = "header", Namespace = "http://xxx.com/data-hub/envelope")]
    public Header Header { get; set; }

    [XmlAttribute(AttributeName = "envelope", Namespace = "http://www.w3.org/2000/xmlns/")]
    public string _envelope { get; set; }
}

public class Header
{
    [XmlElement(ElementName = "additionalInfo")]
    public AdditionalInfo AdditionalInfo { get; set; }
}

public class AdditionalInfo
{
    [XmlElement(ElementName = "Rebates")]
    public string Rebates { get; set; }
    [XmlElement(ElementName = "Expenses")]
    public string Expenses { get; set; }
    [XmlElement(ElementName = "Months")]
    public string Months{ get; set; }
}

解决方案

As PIEBALDconsult mentions, there is at least one error in your XML with the closing tag:

<envelope:envelope xmlns:envelope="http://xxx.com/data-hub/envelope">
	<envelope:header>
		<additionalInfo>
			<Rebates/>
			<Expenses>930879969</Expenses>
			<Months>20</Months>
		</additionalInfo>
	</envelope:header>
</envelope:envelope>

Also, you are using mixed namespaces. There are two solutions:

1. add an additional namespace definition to the opening element:

<envelope:envelope xmlns:envelope="http://xxx.com/data-hub/envelope" 

                   xmlns="http://xxx.com/data-hub/envelope">
	<envelope:header>
		<additionalInfo>
			<Rebates/>
			<Expenses>930879969</Expenses>
			<Months>20</Months>
		</additionalInfo>
	</envelope:header>
</envelope:envelope>

2. All elements have the same namespace:

<envelope:envelope xmlns:envelope="http://xxx.com/data-hub/envelope">
	<envelope:header>
		<envelope:additionalInfo>
			<envelope:Rebates/>
			<envelope:Expenses>930879969</envelope:Expenses>
			<envelope:Months>20</envelope:Months>
		</envelope:additionalInfo>
	</envelope:header>
</envelope:envelope>

Lastly, the Envelope class should be:

[XmlRoot(ElementName = "envelope", Namespace = "http://xxx.com/data-hub/envelope")]
public class Envelope
{
    [XmlElement(ElementName = "header")]
    public Header Header { get; set; }
}

And here are the other classes, used for testing, for consistancy:

public class Header
{
	[XmlElement(ElementName = "additionalInfo")]
	public AdditionalInfo AdditionalInfo { get; set; }
}

public class AdditionalInfo
{
	[XmlElement(ElementName = "Rebates")]
	public string Rebates { get; set; }
	[XmlElement(ElementName = "Expenses")]
	public string Expenses { get; set; }
	[XmlElement(ElementName = "Months")]
	public string Months { get; set; }
}

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