{"id":535247,"date":"2021-08-31T23:35:03","date_gmt":"2021-08-31T15:35:03","guid":{"rendered":"http:\/\/4563.org\/?p=535247"},"modified":"2021-08-31T23:35:03","modified_gmt":"2021-08-31T15:35:03","slug":"spark-%e8%a7%a3%e6%9e%90%e5%a4%8d%e6%9d%82-xml%ef%bc%8c%e6%95%b0%e6%8d%ae%e5%a6%82%e4%bd%95%e6%98%a0%e5%b0%84%e5%88%b0%e5%a4%9a%e8%a1%a8%e4%b8%ad","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=535247","title":{"rendered":"Spark \u89e3\u6790\u590d\u6742 xml\uff0c\u6570\u636e\u5982\u4f55\u6620\u5c04\u5230\u591a\u8868\u4e2d"},"content":{"rendered":"
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Spark \u89e3\u6790\u590d\u6742 xml\uff0c\u6570\u636e\u5982\u4f55\u6620\u5c04\u5230\u591a\u8868\u4e2d <\/h1>\n

<\/p>\n

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\u8cc7\u6df1\u5927\u4f6c : bluehtt <\/span> <\/i> 8<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u9700\u6c42\uff1a\u5229\u7528 Spark \u89e3\u6790 xml \u6587\u4ef6\uff0cxml \u7ed3\u6784\u6700\u5927\u6df1\u5ea6\u6709 8 \u5c42\uff0c\u6570\u636e\u6709\u590d\u6742\u7684\u5173\u8054\u5173\u7cfb\uff0c\u5904\u7406\u540e\u4f1a\u63d2\u5165\u5230 20 \u591a\u5f20\u8868\u4e2d\u3002\u7531\u4e8e\u4f7f\u7528\u5de5\u5177\u89e3\u6790\u540e\u7684 DataFrame \u7ed3\u6784\u8fc7\u957f\uff0c\u7b80\u5355\u622a\u53d6\u4e86\u4e00\u90e8\u5206\u5982\u4e0b\uff1a<\/p>\n

\"Spark<\/p>\n

\u76ee\u524d\u6ca1\u6709\u597d\u7684\u601d\u8def\uff0c\u5c31\u662f\u83b7\u53d6\u6bcf\u4e00\u5217\u5143\u7d20\u4f9d\u6b21\u904d\u5386\u63d0\u53d6\u51fa\u6240\u6709\u9700\u8981\u7684\u5143\u7d20\uff0c\u4f46\u662f\u60f3\u5230\u8981\u904d\u5386 8 \u5c42\u773c\u6cea\u90fd\u8981\u6d41\u4e0b\u6765\u4e86\uff1a<\/p>\n

\/\/ \u5c42\u5c42\u5bf9\u8c61\u904d\u5386 val identifiers = row.get(0).asInstanceOf[Row].get(0).asInstanceOf[Row].get(0).asInstanceOf[Row].get(0) \/\/ \u89e3\u6790\u6570\u7ec4 println(identifiers.asInstanceOf[mutable.WrappedArray[AnyRef]](0)) <\/code><\/pre>\n
\u5c31\u4ee5\u56fe\u793a\u4e2d\u7684\u7ed3\u6784\u6765\u8bf4\uff0c\u6570\u636e\u4e0d\u7b97\u590d\u6742\uff0c\u4f46\u662f\u5b8c\u6574\u7684\u7ed3\u6784\u5b9e\u5728\u662f\u4ee4\u4eba\u795e\u4f24\uff0c\u8d34\u4e86\u56fe\u6050\u6015\u4f1a\u5360\u636e\u6574\u4e2a\u9875\u9762\u3002\u53e6\u5916\u6700\u7ec8\u8981\u63d2\u5165\u7684 20 \u591a\u5f20\u8868\u4e2d\u5341\u51e0\u5f20\u662f\u5173\u8054\u8868\u3002 \u521d\u6b21\u4f7f\u7528 Spark \u5904\u7406\u6570\u636e\uff0c\u6c42\u5927\u5bb6\u7ed9\u70b9\u610f\u89c1\u548c\u601d\u8def\uff0c\u4e07\u5206\u611f\u8c22\uff01<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (2<\/span>) <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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     \u8cc7\u6df1\u5927\u4f6c : wloverine <\/span>  <\/div>\n
     <\/i>    <\/span> <\/div>\n<\/p><\/div>\n
     spark \u89e3\u6790 xml \u9700\u6c42\u8fd8\u633a\u5c11\u89c1\u7684 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : bluehtt <\/span>  <\/div>\n
     <\/i>    <\/span> <\/div>\n<\/p><\/div>\n
     @wloverine #1 \u56e0\u4e3a\u89e3\u6790\u540e\u7684\u6570\u636e\u9700\u8981\u4f5c\u5404\u79cd\u5904\u7406\uff0c\u5c31\u60f3\u4e00\u6b65\u5230\u4f4d  <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    Spark \u89e3\u6790\u590d\u6742 xml\uff0c\u6570\u636e…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/535247"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=535247"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/535247\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=535247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=535247"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=535247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}