羅馬HttpClientFeedFetcher給出「無效的XML」異常

我想使用羅馬，只是爲了測試，我試圖獲取一個簡單的RSS源，並不斷收到「無效的XML」錯誤。我執行this solution中給出的解決方案，但它不適合我。我究竟做錯了什麼？羅馬HttpClientFeedFetcher給出「無效的XML」異常

代碼：

private void fetchRSSDetails() { 
    HttpClientFeedFetcher feedFetcher = new HttpClientFeedFetcher(); 
    try { 
     SyndFeed feed = feedFetcher.retrieveFeed(new URL("http://feeds.bbci.co.uk/news/world/rss.xml")); 
     System.out.println(feed.getLink()); 
    } catch (IllegalArgumentException | IOException | FeedException | FetcherException e) { 
     e.printStackTrace(); 
    } 
}

我得到的例外是：

com.rometools.rome.io.ParsingFeedException: Invalid XML 
    at com.rometools.rome.io.WireFeedInput.build(WireFeedInput.java:241) 
    at com.rometools.rome.io.SyndFeedInput.build(SyndFeedInput.java:154) 
    at com.rometools.fetcher.impl.HttpClientFeedFetcher.retrieveFeed(HttpClientFeedFetcher.java:354) 
    at com.rometools.fetcher.impl.HttpClientFeedFetcher.getFeed(HttpClientFeedFetcher.java:261) 
    at com.rometools.fetcher.impl.HttpClientFeedFetcher.retrieveFeed(HttpClientFeedFetcher.java:246) 
    at com.rometools.fetcher.impl.HttpClientFeedFetcher.retrieveFeed(HttpClientFeedFetcher.java:157) 
    at com.my.feed.subscriptions.SearchTask.fetchRSSDetails(SearchTask.java:168) 
    at com.my.feed.subscriptions.SearchTask.doInBackground(SearchTask.java:93) 
    at com.my.feed.subscriptions.SearchTask.doInBackground(SearchTask.java:54) 
    at android.os.AsyncTask$2.call(AsyncTask.java:287) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:137) 
    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 
    at java.lang.Thread.run(Thread.java:856) 
Caused by: org.jdom2.JDOMException: http://apache.org/xml/features/disallow-doctype-decl feature not recognized for SAX driver org.apache.harmony.xml.ExpatReader 
    at org.jdom2.input.SAXBuilder.internalSetFeature(SAXBuilder.java:1025) 
    at org.jdom2.input.SAXBuilder.configureParser(SAXBuilder.java:976) 
    at org.jdom2.input.SAXBuilder.buildEngine(SAXBuilder.java:856) 
    at org.jdom2.input.SAXBuilder.getEngine(SAXBuilder.java:904) 
    at org.jdom2.input.SAXBuilder.build(SAXBuilder.java:1196) 
    at com.rometools.rome.io.WireFeedInput.build(WireFeedInput.java:234) 
    ... 15 more

這裏是我怎麼加羅馬到我的Android項目。

compile ('com.rometools:rome:1.5.1'){ 
    exclude module: 'slf4j-api' 
} 
compile ('com.rometools:rome-fetcher:1.5.1'){ 
    exclude module: 'slf4j-api' 
}

我一定會缺少一些簡單的...如果任何人能指出我對任何有用的羅馬文檔有幫助。另外，如果你想推薦一些更容易使用的東西，我不會在羅馬和任何其他的Java解析庫中設置。我只需要解析RSS提要。

來源

2016-03-21 T. Francis

我無法複製您的問題，但你可以嘗試添加自己的用戶代理字符串飼料提取器（以防它們被重新定向某些用戶代理）：

SyndFeed feed = feedFetcher.retrieveFeed("your-rss-reader-user-agent", new URL("http://feeds.bbci.co.uk/news/world/rss.xml"));

見also this issue about deprecation of rome-fetcher。有一個關於如何使用Apache HttpClient獲取提要的例子。

來源

2016-03-22 12:25:23 janih

羅馬HttpClientFeedFetcher給出「無效的XML」異常

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