需要使用xmldoc迭代XML的方法

Question

使用Appery.io javascript服務器端代碼。基本上是一個MongoDB。正在使用

庫xmldoc.js 0.1.2 & sax.js 0.5.4

可用其它庫：Underscore.js 1.5.1 moment.js 2.1.0 Handlebars.js 1.0.0

使用下面的代碼，我可以訪問我需要的第一個單節點值，並將該項插入到數據庫中，但我需要繼續遍歷xml並繼續在數據庫中創建對象。如果可能的話，我希望在1個API調用中發送此消息，但我不認爲它是。有沒有一種方法可以通過循環迭代或者「跳過」以前發送的項目。下面的網址只有20個結果。

var XHRResponse = XHR2.send("GET",'http://www.bing.com/news?q=Politics&FORM=NSBABR&FORMAT=RSS', {}); 


var Bingresult = new XmlDocument(XHRResponse.body); 

var link = Bingresult.valueWithPath("channel.item.link"); 

var title = Bingresult.valueWithPath("channel.item.title"); 

var source = Bingresult.valueWithPath("channel.item.News:Source"); 

var news_image = Bingresult.valueWithPath("channel.item.News:Image"); 

var pub_date = Bingresult.valueWithPath("channel.item.pubDate"); 


//response.success(Bingresult, "Rss"); Same as console.log// 


Collection.createObject("55d3d209e4b0d6ee27c97867", "News_", {"link": link,"title": title, "source": source,"news_image": news_image, "pub_date": pub_date})._id; 

Answer 1

我嘗試下面的代碼和它的工作對我來說：中印什麼

var XHRResponse = XHR2.send("GET",'http://www.bing.com/news?q=Politics&FORM=NSBABR&FORMAT=RSS', {}); 

var Bingresult = new XmlDocument(XHRResponse.body); 

// Pull out the <channel> node 
var channel = Bingresult.childNamed("channel"); 

// Filter out only 'item' children 
var items = channel.childrenNamed("item"); 
console.log("Found %s items.", items.length); 

// Loop through each item 
items.forEach(function(item) { 
    var title = item.valueWithPath("title");   
    var link = item.valueWithPath("link"); 
    var source = item.valueWithPath("News:Source"); 
    var news_image = item.valueWithPath("News:Image"); 
    var pub_date = item.valueWithPath("pubDate"); 

    // Print values - you can add them to db here  
    console.log("\nTitle '%s' \nLink '%s' \nSource '%s' \nImage '%s' \nDate '%s'", title, link, source, news_image, pub_date); 
} 

實例（我把只是一個條目在這裏，代碼實際打印幾個條目這樣的，每一個新聞）

Title 'Bernie Sanders Right at Home in Democratic Party' 
Link 'http://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=08F7562EF23642259F2CE9F19679C141&url=http%3a%2f%2fwww.ammoland.com%2f2015%2f10%2fbernie-sanders-right-at-home-in-democratic-party%2f&c=_Lbqne5iN09in8HqtFhw6GS0tbEY8KpchXOcT_gmFmA&mkt=en-us' 
Source 'Ammo Land' 
Image 'http://a2.bing4.com/th?id=ON.032A87B845B1305FEC6642A06226A671&pid=News' 
Date 'Fri, 16 Oct 2015 15:59:00 GMT' 

我希望有幫助。