阅读新 "query.yahooapis.com" 天气 XML

Question

我曾经使用下面的代码来检索当前温度。但它不再起作用了。

Set objXML = CreateObject("Microsoft.XMLDOM")
objXML.async = "false"
objXML.setProperty "ServerHTTPRequest", true
objXML.load("http://weather.yahooapis.com/forecastrss?p=79105&u=f")
outTEMPer = objXML.selectSingleNode("//item/yweather:condition").Attributes.GetNamedItem("temp").Text

新Link是

objXML.load("https://query.yahooapis.com/v1/public/yql?q=select * from weather.forecast where woeid in (select woeid from geo.places(1) where text%3D%22amarillo%2C tx%22)&format=xml&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys")

但是我无法解析当前温度。试过

outTEMPer = objXML.selectSingleNode("//item/yweather:condition").Attributes.GetNamedItem("temp").Text

和

outTEMPer = objXML.getElementsByTagName("http://xml.weather.yahoo.com/ns/rss/1.0","condition").getAttribute("temp")

XML 是：

<?xml version="1.0" encoding="UTF-8"?>
<query yahoo:lang="en-us" yahoo:created="2016-03-29T14:50:40Z" yahoo:count="1" xmlns:yahoo="http://www.yahooapis.com/v1/base.rng">
  <!-- total: 19 -->
  <!-- main-1f117507-f23e-11e5-8580-d89d676f9644 -->
  <results>
    <channel>
      <yweather:units temperature="F" speed="mph" pressure="in" distance="mi" xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0"/>
      <title>Yahoo! Weather - Amarillo, TX, US</title>
      <link>http://us.rd.yahoo.com/dailynews/rss/weather/Country__Country/*https://weather.yahoo.com/country/state/city-2354141/</link>
      <description>Yahoo! Weather for Amarillo, TX, US</description>
      <language>en-us</language>
      <lastBuildDate>Tue, 29 Mar 2016 09:50 AM CDT</lastBuildDate>
      <ttl>60</ttl>
      <yweather:location xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" region=" TX" country="United States" city="Amarillo"/>
      <yweather:wind speed="18" xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" direction="175" chill="52"/>
      <yweather:atmosphere pressure="26.13405" xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" visibility="10.004077" rising="0" humidity="75"/>
      <yweather:astronomy xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" sunset="8:7 pm" sunrise="7:37 am"/>
      <image>
        <title>Yahoo! Weather</title>
        <width>142</width>
        <height>18</height>
        <link>http://weather.yahoo.com</link>
        <url>http://l.yimg.com/a/i/brand/purplelogo//uh/us/news-wea.gif</url>
      </image>
      <item>
        <title>Conditions for Amarillo, TX, US at 09:00 AM CDT</title>
        <geo:lat xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#">35.207249</geo:lat>
        <geo:long xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#">-101.833893</geo:long>
        <link>http://us.rd.yahoo.com/dailynews/rss/weather/Country__Country/*https://weather.yahoo.com/country/state/city-2354141/</link>
        <pubDate>Tue, 29 Mar 2016 09:00 AM CDT</pubDate>
        <yweather:condition xmlns:yweather="http://xml.weather.yahoo.com/ns/rss/1.0" text="Breezy" temp="57" date="Tue, 29 Mar 2016 09:00 AM CDT" code="23"/>

下面的XML代码就是我需要的

谢谢阿瑞斯。成功了。

Answer 1

XML 使用命名空间。可以像这样选择命名空间节点（及其属性）：

uri = "http://xml.weather.yahoo.com/ns/rss/1.0"
objXML.SetProperty "SelectionNamespaces", "xmlns:ns='" & uri & "'"
outTEMPer = objXML.SelectSingleNode("//item/ns:condition").GetAttribute("temp")

Answer 2

不要费力，也不要更改您以前的代码。 http://weather.yahooapis.com/forecastrss 不再有效，但它并没有消失。

只是改成了http://xml.weather.yahoo.com/forecastrss 您可以将应用程序中的 link 更改为新地址，它将 return 与前者完全相同的数据。我在 Arduino 中实现了这个调用，几天前它停止工作了。通过 webz 搜索后，我发现他们已经更改了地址。我复制并粘贴它，它又像新的一样工作了。

更新： 截至 2016 年 5 月 27 日，http://xml.weather.yahoo.com/forecastrss URL 不再有效，出现 "Could not connect to server" 错误。

阅读新 "query.yahooapis.com" 天气 XML

Read NEW "query.yahooapis.com" weather XML

xml

vbscript

xml-namespaces

asp-classic

yahoo-weather-api