我正在尝试创建解析所有支持提要的网站的 RSS 提要应用程序。我为此目的使用了 Jsoup。并以这种方式解析不同类型的 rss
org.jsoup.select.Elements links = doc.select("link[type=application/rss+xml]");
org.jsoup.select.Elements links = doc.select("link[type=application/atom+xml]");
它解析各种网站，如 engadget.com、ndtv.com 等，但是当我尝试粘贴 stackoverflow.com 或 1up.com 等网站时，出现以下错误。
线程以未捕获的异常退出 (group=0x40efe378)
和
Caused by: java.lang.IllegalStateException: Target host must not be null, or set in parameters. scheme=null, host=null, path=/rss
搜索错误 #1 甚至没有产生 1 个结果。搜索错误#2 有很多。所有人都声明在任何网站网址之前使用 http://
http://1up.com
但是错误仍然存在。我之前已经实现了这个，因为所有其他网站的 RSS 都被解析了。这是我用于 1up.com RSS 提要的 logcat。
D/URL Length(4097): 14
D/url name(4097): http://1up.com
D/No of RSS links found(4097): 1
W/dalvikvm(4097): threadid=12: thread exiting with uncaught exception (group=0x40efe378)
E/AndroidRuntime(4097): FATAL EXCEPTION: AsyncTask #1
E/AndroidRuntime(4097): java.lang.RuntimeException: An error occured while executing doInBackground()
E/AndroidRuntime(4097): at android.os.AsyncTask$3.done(AsyncTask.java:299)
E/AndroidRuntime(4097): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
E/AndroidRuntime(4097): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
E/AndroidRuntime(4097): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
E/AndroidRuntime(4097): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
E/AndroidRuntime(4097): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
E/AndroidRuntime(4097): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
E/AndroidRuntime(4097): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
E/AndroidRuntime(4097): at java.lang.Thread.run(Thread.java:856)
E/AndroidRuntime(4097): Caused by: java.lang.IllegalStateException: Target host must not be null, or set in parameters. scheme=null, host=null, path=/rss
E/AndroidRuntime(4097): at org.apache.http.impl.client.DefaultRequestDirector.determineRoute(DefaultRequestDirector.java:591)
E/AndroidRuntime(4097): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:293)
E/AndroidRuntime(4097): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
E/AndroidRuntime(4097): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
E/AndroidRuntime(4097): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
E/AndroidRuntime(4097): at com.maulik.rss.RssParser.getXmlFromUrl(RssParser.java:214)
E/AndroidRuntime(4097): at com.maulik.rss.RssParser.getRSSFeed(RssParser.java:69)
E/AndroidRuntime(4097): at com.maulik.rss.RSS_AddNewSiteActivity$loadRSSFeed.doInBackground(RSS_AddNewSiteActivity.java:97)
E/AndroidRuntime(4097): at com.maulik.rss.RSS_AddNewSiteActivity$loadRSSFeed.doInBackground(RSS_AddNewSiteActivity.java:1)
E/AndroidRuntime(4097): at android.os.AsyncTask$2.call(AsyncTask.java:287)
E/AndroidRuntime(4097): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
E/AndroidRuntime(4097): ... 5 more