javascript - Node.js 中的 XML(使用 Javascript)

Question

我已经将模拟的 XML 数据存储在硬盘上(称为 simmedData.xml)。我还获得了通过 Web 端点 (http://localhost:8079/realData) 出售的“真实”数据(“真实”数据是动态的)。

XML 文档的格式完全相同，但我想将它们“合并”到 http://localhost:8080/mergedData 可用的一个端点。

我想使用 node.js 托管 mergedData 端点——在请求 mergedData 时，是否有简单的方法将这些 xml 文档合并在一起？

例如:

simmedData.xml

<site:Tracks xmlns:site='http://mysite/site'>
  <site:track id='1' latitude='37.82091918923291' longitude='128.87375778822812' altitude='9753.6005859375' bearing='10.542624087704585' speedInKnots='454.6067199707031' />
  <site:track id='2' latitude='37.45048387959727' longitude='129.49111126654887' altitude='9144.0' bearing='190.90400586790983' speedInKnots='436.89837646484375' />
</site:Tracks>

http://localhost:8079/realData

<site:Tracks xmlns:site='http://mysite/site'>
  <site:track id='1001' latitude='39.82093291' longitude='128.87375722812' altitude='9753.60375' bearing='10.542704585' speedInKnots='454.6707031' />
  <site:track id='1002' latitude='39.387959727' longitude='129.4126654887' altitude='9144.0' bearing='90.90790983' speedInKnots='436.8984375' />
  <site:track id='1003' latitude='40.82093291' longitude='138.87375722812' altitude='9753.5' bearing='10.542704585' speedInKnots='454.6707031' />
  <site:track id='1004' latitude='40.387959727' longitude='139.4126654887' altitude='9124.0' bearing='90.90790983' speedInKnots='436.8984375' />
</site:Tracks>

http://localhost:8080/mergedData

<site:Tracks xmlns:site='http://mysite/site'>
  <site:track id='1' latitude='37.82091918923291' longitude='128.87375778822812' altitude='9753.6005859375' bearing='10.542624087704585' speedInKnots='454.6067199707031' />
  <site:track id='2' latitude='37.45048387959727' longitude='129.49111126654887' altitude='9144.0' bearing='190.90400586790983' speedInKnots='436.89837646484375' />
  <site:track id='1001' latitude='39.82093291' longitude='128.87375722812' altitude='9753.60375' bearing='10.542704585' speedInKnots='454.6707031' />
  <site:track id='1002' latitude='39.387959727' longitude='129.4126654887' altitude='9144.0' bearing='90.90790983' speedInKnots='436.8984375' />
  <site:track id='1003' latitude='40.82093291' longitude='138.87375722812' altitude='9753.5' bearing='10.542704585' speedInKnots='454.6707031' />
  <site:track id='1004' latitude='40.387959727' longitude='139.4126654887' altitude='9124.0' bearing='90.90790983' speedInKnots='436.8984375' />
</site:Tracks>

Answer 1

如果您想进行任何类型的智能“XML 感知”合并，那么您可能会考虑使用 XML 解析器来执行 DOM 操作，或者使用 XSLT 转换器来运行将两者合并的样式表。我确定有用于 Node 的 libxml/libxslt 包装器:

• XSLT for node.js
• XML Parsers for node.js

我最近在 SO 上回答了一个关于 XML merge with XSLT 的问题但是如果你只是做一个简单的“追加”，那么它就不那么棘手了。