{"id":36335,"date":"2024-01-02T11:40:57","date_gmt":"2023-11-12T15:36:56","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/apache-spark-%e9%85%8d%e7%bd%ae\/"},"modified":"2024-05-04T16:27:39","modified_gmt":"2024-05-04T08:27:39","slug":"apache-spark-%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/apache-spark-%e9%85%8d%e7%bd%ae\/","title":{"rendered":"Apache Spark \u914d\u7f6e"},"content":{"rendered":"

\u6709\u5173Apache Spark\u8bbe\u7f6e\u7684\u6b65\u9aa4\u3002<\/p>\n

\u5b89\u88c5<\/h1>\n
brew install <\/span>apache-spark\r\n<\/code><\/pre>\n
\u51c6\u5907\u5df2\u7ecf\u5b8c\u6210\u3002<\/p>\n
\u542f\u52a8REPL<\/h1>\n
\u5728 REPL \u4e2d\uff0c\u4f60\u53ef\u4ee5\u5c1d\u8bd5\u8bb8\u591a\u4e0d\u540c\u7684\u4e1c\u897f\u3002<\/p>\n
spark-shell\r\n<\/code><\/pre>\n
\u8bd5\u7740\u73a9\u4e00\u73a9<\/h1>\n
\u5c1d\u8bd5\u9605\u8bfb README \u7b49\u7b49\u3002
\nsh\u00ec README .)<\/p>\n
scala<\/span>><\/span> val<\/span> textFile<\/span> =<\/span> spark<\/span>.<\/span>read<\/span>.<\/span>textFile<\/span>(<\/span>\"README.md\"<\/span>)<\/span>\r\ntextFile<\/span>:<\/span> org.apache.spark.sql.Dataset<\/span>[<\/span>String<\/span>]<\/span> =<\/span> [<\/span>value:<\/span> string<\/span>]<\/span>\r\n\r\nscala<\/span>><\/span> textFile<\/span>.<\/span>first<\/span>\r\nres0<\/span>:<\/span> String<\/span> =<\/span> #<\/span> \u4ffa\u306e\u30a2\u30d1\u30c3\u30c1\u30b9\u30d1\u30fc\u30af<\/span>\r\n\r\ntextFile<\/span>.<\/span>count<\/span>\r\nres1<\/span>:<\/span> Long<\/span> =<\/span> 167<\/span>\r\n<\/code><\/pre>\n
\u8bd5\u7740\u521b\u5efa\u4e00\u4e2a\u5408\u9002\u7684 DataFrame \u7b49\u3002<\/p>\n
scala<\/span>><\/span> :<\/span>paste<\/span>\r\n\/\/ Entering paste mode (ctrl-D to finish)<\/span>\r\n\r\nimport<\/span> org.apache.spark.sql.SparkSession<\/span>\r\n\r\nval<\/span> spark<\/span> =<\/span> SparkSession<\/span>.<\/span>builder<\/span>.<\/span>appName<\/span>(<\/span>this<\/span>.<\/span>getClass<\/span>.<\/span>getName<\/span>).<\/span>getOrCreate<\/span>()<\/span>\r\nimport<\/span> spark.implicits._<\/span>\r\n\r\nval<\/span> people<\/span> =<\/span> Seq<\/span>(<\/span>\r\n  (<\/span>\"Spark\u592a\u90ce\"<\/span>,<\/span> \"spark-taro@example.com\"<\/span>,<\/span> \"2021-01-01\"<\/span>,<\/span> 11<\/span>),<\/span>\r\n  (<\/span>\"Spark\u4e8c\u90ce\"<\/span>,<\/span> \"spark-jiro@example.com\"<\/span>,<\/span> \"2021-02-02\"<\/span>,<\/span> 12<\/span>),<\/span>\r\n  (<\/span>\"Spark\u4e09\u90ce\"<\/span>,<\/span> \"spark-saburo@example.com\"<\/span>,<\/span> \"2021-03-03\"<\/span>,<\/span> 13<\/span>)<\/span>\r\n).<\/span>toDF<\/span>(<\/span>\"name\"<\/span>,<\/span> \"email\"<\/span>,<\/span> \"birthday\"<\/span>,<\/span> \"age\"<\/span>)<\/span>\r\n\r\n\/\/ Exiting paste mode, now interpreting.<\/span>\r\n...<\/span>\r\n\r\nscala<\/span>><\/span> people<\/span>.<\/span>printSchema<\/span>()<\/span>\r\nroot<\/span>\r\n |--<\/span> name<\/span>:<\/span> string<\/span> (<\/span>nullable<\/span> =<\/span> true<\/span>)<\/span>\r\n |--<\/span> email<\/span>:<\/span> string<\/span> (<\/span>nullable<\/span> =<\/span> true<\/span>)<\/span>\r\n |--<\/span> birthday<\/span>:<\/span> string<\/span> (<\/span>nullable<\/span> =<\/span> true<\/span>)<\/span>\r\n |--<\/span> age<\/span>:<\/span> integer<\/span> (<\/span>nullable<\/span> =<\/span> false<\/span>)<\/span>\r\n\r\nscala<\/span>><\/span> people<\/span>.<\/span>show<\/span>(<\/span>3<\/span>)<\/span>\r\n+---------+--------------------+----------+---+<\/span>\r\n|<\/span>     name<\/span>|<\/span>               email<\/span>|<\/span>  birthday<\/span>|<\/span>age<\/span>|<\/span>\r\n+---------+--------------------+----------+---+<\/span>\r\n|<\/span>Spark\u592a\u90ce<\/span>|<\/span>spark<\/span>-<\/span>taro<\/span>@exampl<\/span>...|<\/span>2021<\/span>-<\/span>01<\/span>-<\/span>01<\/span>|<\/span> 11<\/span>|<\/span>\r\n|<\/span>Spark\u4e8c\u90ce<\/span>|<\/span>spark<\/span>-<\/span>jiro<\/span>@exampl<\/span>...|<\/span>2021<\/span>-<\/span>02<\/span>-<\/span>02<\/span>|<\/span> 12<\/span>|<\/span>\r\n|<\/span>Spark\u4e09\u90ce<\/span>|<\/span>spark<\/span>-<\/span>saburo<\/span>@exam<\/span>...|<\/span>2021<\/span>-<\/span>03<\/span>-<\/span>03<\/span>|<\/span> 13<\/span>|<\/span>\r\n+---------+--------------------+----------+---+<\/span>\r\n<\/code><\/pre>\n
\u8bf7\u5c1d\u8bd5\u5404\u79cd\u4e0d\u540c\u7684\u4e8b\u60c5\u3002
\n\u7ed3\u675f\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6709\u5173Apache Spark\u8bbe\u7f6e\u7684\u6b65\u9aa4\u3002 \u5b89\u88c5 brew install apache-spark \u51c6\u5907\u5df2\u7ecf\u5b8c […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-36335","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nApache Spark \u914d\u7f6e - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/apache-spark-\u914d\u7f6e\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Apache Spark \u914d\u7f6e\" \/>\n<meta property=\"og:description\" content=\"\u6709\u5173Apache Spark\u8bbe\u7f6e\u7684\u6b65\u9aa4\u3002 \u5b89\u88c5 brew install apache-spark \u51c6\u5907\u5df2\u7ecf\u5b8c […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/apache-spark-\u914d\u7f6e\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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