XML包含多个名称空间 - 但它只有一个(The XML contains multiple namespaces - but it only has one)

 我正在使用SSIS导入XML文件。 
 
 当我尝试生成XSD时，它显示错误： 
 
 
 
 
  
 无法从XML文件中推断出XSD。 XML包含多个名称空间 
 
 
 
 
 这是XML文件的一个非常基本的清理版本： 
 
<?xml version="1.0"?> 
<SM>  
  <xF>     
    <MA xmlns="http://www.somewhere.com/ZZ/ZZ.xsd">
  </SM>  
  .... other stuff ...
</xF>     
 
 它肯定只有一个xmlns= ，它没有命名空间限定符，有点像这样： 
 
 无法从XML文件推断XSD .XML包含多个命名空间 
 
 ....除了没有命名空间限定符（文件中唯一的:在URL中） 
 
 如果它只有一个xmlns= ，那是不是意味着它只有一个命名空间，而不是很多？ 
 
 如果存在某种“固有”命名空间，则意味着SSIS无法导入任何带有xmlns=声明的xml文件。 
 
 任何人都可以澄清：一个只有一个xmlns=的XML文件有多少名称空间？ 是否有一个我可以使用的工具，它将枚举命名空间，以便我可以识别它们？ 
 
 有许多在线解决方案说“用xlst删除xmlns”但我宁愿首先理解为什么SSIS认为它有多个命名空间。 
 
 如果我删除xmlns部分，生成XSD并导入它导入OK。 如果我将xmlns保留并使用现有XSD导入，则不会导入任何行。 我认为这是因为XSD需要引用命名空间，但如果我将targetNamespace放入XSD，它仍然不会导入任何行。 也许我需要找一个非SSIS XML工具来做一些调查。 

I'm using SSIS to import XML files.
 
When I try to generate XSD it shows the error:
 
 
 
 
  
Unable to infer the XSD from the XML file. The XML contains multiple namespaces
 
 
 
 
Here a very basic sanitised version of the XML file:
 
<?xml version="1.0"?> 
<SM>  
  <xF>     
    <MA xmlns="http://www.somewhere.com/ZZ/ZZ.xsd">
  </SM>  
  .... other stuff ...
</xF>     
 
It definitely only has one xmlns= in it, and it has no namespace qualifiers, a bit like this:
 
Unable to infer XSD from XML file .XML contain Multiple Namespaces
 
....except that there are no namespace qualifiers (the only : in the file is in the URL)
 
If it only has one xmlns= in it, doesn't that mean it only has one namespace, not many? 
 
If there is some kind of 'inherent' namespace, that means that SSIS is unable to import any xml file with a xmlns= declaration in it.
 
Can anyone clarify: how many namespaces does an XML file with only one xmlns= in it have? Is there a tool I can use that will enumerate the namespaces so I can identify them?
 
There are many online solutions that say "remove the xmlns with xlst" but I would rather first understand why SSIS thinks it has multiple namespaces.
 
If I remove the xmlns part, generate the XSD and import it imports OK. If I leave the xmlns in and import with the existing XSD it imports no rows. I think this is because the XSD needs to refer to the namespace, but if I put targetNamespace into the XSD, it still imports no rows. Perhaps I need to find a non SSIS XML tool to do some investigation.

原文：https://stackoverflow.com/questions/32961930