在WCF XML输出中控制命名空间前缀 [英] Controlling Namespace Prefixes in WCF XML Output

问题描述

我的WCF服务的当前输出如下(下面仅显示了一部分):

The current output of my WCF service is as follows (only a portion is shown below):

<s:Body>
  <executeSelectSP2Response xmlns="http://tempuri.org/">
     <executeSelectSP2Result xmlns:a="http://schemas.datacontract.org/2004/07/WCF_Services.DataContract" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
        <a:Rows>
           <a:RowDetail>
              <a:Fields>
                 <a:FieldDetail>
                    <a:name>STATE_CD</a:name>
                    <a:value>1</a:value>
                 </a:FieldDetail>
                 <a:FieldDetail>
                    <a:name>STATE_CD_TXT</a:name>
                    <a:value>Alabama</a:value>
                 </a:FieldDetail>
                 <a:FieldDetail>
                    <a:name>STATE_CD_SHORT_TXT</a:name>
                    <a:value>AL</a:value>
                 </a:FieldDetail>
              </a:Fields>
           </a:RowDetail>

在此示例中，每个美国州都重复使用"RowDetail"元素.

In the example, the "RowDetail" element is repeated for each US state.

我有两个问题:

1. 如何删除标签中的"a:"前缀.我假设我需要更改xmlns设置，但是我不确定如何执行此操作而不会引发错误.我查看了其他线程，但无法正常工作.

1. How can I remove the "a:" prefix in the tags. I am assuming i need to change the xmlns setting, but I am not sure how to do this without throwing an error. I viewed other threads, but could not get it to work.

是否可以从输出中删除无关的元素，即行"和字段"?我知道为什么会出现这些-这是由于我如何设置我的课程(在下面发布)，但是看IMO太麻烦了.

Is it possible to remove the extraneous elements from the output, namely "Rows" and "Fields"? I understand why they are there - it is due to how I set up my classes (posted below), but it is messy to look at IMO.

课程:

[DataContract]
public class Results2Detail
{
    [DataMember]
    public RowDetail[] Rows;
}

[DataContract]
public class RowDetail
{
    [DataMember]
    public FieldDetail[] Fields;
}

[DataContract]
public class FieldDetail
{
    [DataMember]
    public String name;
    [DataMember]
    public String value;
}

推荐答案

此处的问题如下:

1. 您有一些与executeSelectSP2Response相对应的外部类(问题中未显示)，该类在被序列化时放置在默认名称空间"http://tempuri.org/"中.您可能不希望这样做，因为它是测试ASP.Net Web服务的默认名称空间，并且您应该将其替换为公司特定的名称空间.

1. You have some outer class corresponding to executeSelectSP2Response (not shown in your question) that is being placed in a default namespace "http://tempuri.org/" while being serialized. You probably don't want this since it is the test default namespace for ASP.Net Web Services and you are expected to replace it with a company-specific namespace.

有关更换它的说明，请参见这里.

For instructions in replacing it, see here or here.

NameSpace 属性，因此 中.这不同于其父元素的默认名称空间，因此必须指定替代名称空间. a:前缀引用xmlns:a="http://schemas.datacontract.org/2004/07/WCF_Services.DataContract"属性，并指定每个这样标记的元素都属于该命名空间.

The DataContract attributes for the classes shown have no NameSpace property, so by default your classes are all to be serialized into the namespace "http://schemas.datacontract.org/2004/07/Clr.Namespace". This differs from the default namespace of their parent element so an override namespace must be specified. The a: prefixes refer to the xmlns:a="http://schemas.datacontract.org/2004/07/WCF_Services.DataContract" attribute and specifies that each element so tagged belongs in that namespace.

如果要指定Results2Detail等. al.您可以这样做:

If you want to specify that Results2Detail et. al. do not belong in a specific namespace (i.e. inherit their namespace from their parent) you can do:

[DataContract(Namespace="")]
public class Results2Detail
{
    [DataMember]
    public RowDetail[] Rows;
}

[DataContract(Namespace = "")]
public class RowDetail
{
    [DataMember]
    public FieldDetail[] Fields;
}

[DataContract(Namespace = "")]
public class FieldDetail
{
    [DataMember]
    public String name;
    [DataMember]
    public String value;
}

如果需要特定的名称空间，则可以执行[DataContract(Namespace = Namespaces.CompanyNameSpace)]，其中Namespaces是一些静态类，例如:

If you want a specific namespace, you can do [DataContract(Namespace = Namespaces.CompanyNameSpace)] where Namespaces is some static class like:

public static class Namespaces
{
    const string CompanyNameSpace = "http://company.namespace.org"; // or whatever.
}

您的问题2尚不清楚.您是说要让数组显示为单个元素级别，而不是两个嵌套元素级别，即:

Your question #2 is unclear. Are you saying you want your arrays to appear as a single level of elements rather than two nested levels of elements, i.e.:

<executeSelectSP2Result>
    <RowDetail>
        <FieldDetail>
        </FieldDetail>
    </RowDetail>
    <RowDetail>
        <FieldDetail>
        </FieldDetail>
    </RowDetail>
</executeSelectSP2Result>

如果是，则为否，使用DataContractSerializer不能立即实现此级别的控制.您必须实现IXmlSerializable 并手动执行操作，或者切换到XmlSerializer 并使用

If so, then no, this level of control is not immediately possible with DataContractSerializer. You must either implement IXmlSerializable and do it manually, or switch to XmlSerializer and decorate your arrays with the XmlElement attribute.

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