小编Gok*_*ski的帖子

对于这个链接http://bits.blogs.nytimes.com/2014/09/02/uber-banned-across-germany-by-frankfurt-court/?partner=rss&emc=rss此代码不起作用,但如果我以另一个为例:https://www.google.com一切正常:

    URL url = new URL("http://bits.blogs.nytimes.com/2014/09/02/uber-banned-across-germany-by-frankfurt-court/?partner=rss&emc=rss");
        URLConnection uc;
    uc = url.openConnection();
    uc.setRequestProperty("User-Agent", "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_7; en-US) AppleWebKit/534.16 (KHTML, like Gecko) Chrome/10.0.648.205 Safari/534.16");
    uc.addRequestProperty("referer", "http://www.facebook.com");
    uc.connect();     

    this.input = uc.getInputStream();

我得到这个例外:

java.lang.IllegalArgumentException: protocol = http host = null
    at sun.net.spi.DefaultProxySelector.select(DefaultProxySelector.java:170)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:926)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:850)
    at sun.net.www.protocol.http.HttpURLConnection.followRedirect(HttpURLConnection.java:2398)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1557)
    at UrlParser.<init>(UrlParser.java:48)
    at TikaParser.test_url_parser(TikaParser.java:186)
    at TikaParser.run(TikaParser.java:256)
    at java.lang.Thread.run(Thread.java:745)

我的代码出了什么问题？

我正在尝试使用MlLib进行我的colloborative过滤.

当我在Apache Spark 1.0.0中运行它时,我在Scala程序中遇到以下错误.

   14/07/15 16:16:31 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
    14/07/15 16:16:31 WARN LoadSnappy: Snappy native library not loaded
    14/07/15 16:16:31 INFO FileInputFormat: Total input paths to process : 1
    14/07/15 16:16:38 WARN TaskSetManager: Lost TID 10 (task 80.0:0)
    14/07/15 16:16:38 WARN TaskSetManager: Loss was due to java.lang.UnsatisfiedLinkError
    java.lang.UnsatisfiedLinkError: org.jblas.NativeBlas.dposv(CII[DII[DII)I
        at org.jblas.NativeBlas.dposv(Native Method)
        at org.jblas.SimpleBlas.posv(SimpleBlas.java:369)
        at org.jblas.Solve.solvePositive(Solve.java:68)
        at org.apache.spark.mllib.recommendation.ALS$$anonfun$org$apache$spark$mllib$recommendation$ALS$$updateBlock$2.apply(ALS.scala:522)
        at org.apache.spark.mllib.recommendation.ALS$$anonfun$org$apache$spark$mllib$recommendation$ALS$$updateBlock$2.apply(ALS.scala:509)
        at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
        at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
        at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
        at scala.collection.mutable.ArrayOps$ofInt.foreach(ArrayOps.scala:156) …

PostgreSQL中是否有与OracleNUMTODSINTERVAL(n, interval unit)中相同的函数？