{"id":50324,"date":"2023-03-14T09:20:37","date_gmt":"2023-06-07T18:58:16","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e4%bb%8espark%ef%bc%88-shell%ef%bc%89%e8%ae%bf%e9%97%aepostgresql\/"},"modified":"2024-04-29T18:49:30","modified_gmt":"2024-04-29T10:49:30","slug":"%e5%b0%9d%e8%af%95%e4%bb%8espark%ef%bc%88-shell%ef%bc%89%e8%ae%bf%e9%97%aepostgresql","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e4%bb%8espark%ef%bc%88-shell%ef%bc%89%e8%ae%bf%e9%97%aepostgresql\/","title":{"rendered":"\u5c1d\u8bd5\u4eceSpark\uff08-shell\uff09\u8bbf\u95eePostgreSQL"},"content":{"rendered":"<p>\u6211\u6574\u7406\u4e86\u4e00\u4e0b\u4f7f\u7528Spark\u7684\u4ea4\u4e92\u5f0fShell Spark-shell\u8bbf\u95eePostgreSQL\u5e76\u8fdb\u884c\u4e00\u4e9b\u8bd5\u9a8c\u7684\u6b65\u9aa4\uff0c\u4f5c\u4e3a\u5907\u5fd8\u5f55\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u6267\u884c\u73af\u5883\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u7701\u7565\u4e86PostgreSQL\u7684\u5b89\u88c5\u548c\u8bbe\u7f6e\u6b65\u9aa4\u3002<\/p>\n<p>CentOS 7.5\u3001PostgreSQL 9.2.23\u3001Apache Spark 2.3.1<\/p>\n<h1>Apache Spark (\u4e2d\u6587\u540d\u79f0\u4e3a&#8221;\u706b\u82b1&#8221;)<\/h1>\n<p>\u4f7f\u7528\u5f00\u6e90\u6846\u67b6\uff0c\u5728\u5185\u5b58\u4e2d\u4ece\u4e0d\u540c\u7684\u6570\u636e\u5b58\u50a8\uff08Hadoop\/Cassandra\/RDB\uff09\u4e2d\u63d0\u53d6\u3001\u5904\u7406\u548c\u4f20\u9012\u6570\u636e<\/p>\n<h1>\u5b89\u88c5Apache Spark<\/h1>\n<p>\u8bf7\u53c2\u8003\u6b64\u5904\u8fdb\u884cJava\u73af\u5883\u7684\u5b89\u88c5\u3002<\/p>\n<pre class=\"post-pre\"><code>yum search openjdk\r\nyum install java-1.8.0-openjdk\r\nyum install java-1.8.0-openjdk-devel\r\n<\/code><\/pre>\n<p>\u5b89\u88c5Apache Spark<\/p>\n<pre class=\"post-pre\"><code>wget http:\/\/ftp.jaist.ac.jp\/pub\/apache\/spark\/spark-2.3.1\/spark-2.3.1-bin-hadoop2.7.tgz \r\ntar zxvf spark-1.6.1-bin-hadoop2.6.tgz -C \/usr\/local\/lib\/\r\n\r\nln -s \/usr\/local\/lib\/spark-2.3.1-bin-hadoop2.7 \/usr\/local\/lib\/spark\r\n<\/code><\/pre>\n<p>\u8a2d\u5b9a\u74b0\u5883\u8b8a\u6578\u4e26\u78ba\u8a8d\u555f\u52d5Spark-shell\u3002<\/p>\n<pre class=\"post-pre\"><code>vi \/etc\/profile.d\/spark.sh\r\nexport SPARK_HOME=\/usr\/local\/lib\/spark\r\nexport PATH=$SPARK_HOME\/bin:$PATH\r\n\r\nsource \/etc\/profile\r\nspark-shell --version\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d90be913a08637a6dd151\/12-0.jpeg\" alt=\"Spark.JPG\" \/><\/div>\n<p>\u5728\u4e2d\u6587\u4e2d\u672c\u5730\u5316\u4ee5\u4e0b\u5185\u5bb9\uff0c\u4ec5\u63d0\u4f9b\u4e00\u79cd\u9009\u62e9\uff1a<br \/>\n\u5b89\u88c5JDBC\u9a71\u52a8\u7a0b\u5e8f<\/p>\n<pre class=\"post-pre\"><code>yum -y install postgresql-jdbc\r\nfind \/ -name postgre*.jar\r\n<\/code><\/pre>\n<h1>\u4eceSpark Shell\u8fde\u63a5\u5230PostgreSQL\u3002<\/h1>\n<p>\u542f\u52a8\u4ea4\u4e92\u5f0fShell\u5e76\u6307\u5b9aCLASSPATH\u3002<\/p>\n<pre class=\"post-pre\"><code>spark-shell --driver-class-path=\/usr\/share\/java\/postgresql-jdbc.jar \r\n<\/code><\/pre>\n<p>\u52a0\u8f7d PostgreSQL \u6570\u636e\u5e93 &#8220;mydb&#8221; \u4e2d\u7684 public.account \u8868\u7684\u6570\u636e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">val<\/span> <span class=\"nv\">jdbcDF<\/span> <span class=\"k\">=<\/span> <span class=\"nv\">spark<\/span><span class=\"o\">.<\/span><span class=\"py\">read<\/span><span class=\"o\">.<\/span><span class=\"py\">format<\/span><span class=\"o\">(<\/span><span class=\"s\">\"jdbc\"<\/span><span class=\"o\">).<\/span><span class=\"py\">option<\/span><span class=\"o\">(<\/span><span class=\"s\">\"url\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"jdbc:postgresql:\/\/localhost:5432\/mydb\"<\/span><span class=\"o\">).<\/span><span class=\"py\">option<\/span><span class=\"o\">(<\/span><span class=\"s\">\"dbtable\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"public.account\"<\/span><span class=\"o\">).<\/span><span class=\"py\">option<\/span><span class=\"o\">(<\/span><span class=\"s\">\"user\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"postgres\"<\/span><span class=\"o\">).<\/span><span class=\"py\">load<\/span><span class=\"o\">()<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"nv\">jdbcDF<\/span><span class=\"o\">.<\/span><span class=\"py\">filter<\/span><span class=\"o\">(<\/span><span class=\"nf\">jdbcDF<\/span><span class=\"o\">(<\/span><span class=\"s\">\"id\"<\/span><span class=\"o\">)&lt;<\/span><span class=\"mi\">10<\/span><span class=\"o\">).<\/span><span class=\"py\">show<\/span><span class=\"o\">()<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d90be913a08637a6dd151\/21-0.jpeg\" alt=\"Scala_1.JPG\" \/><\/div>\n<p>\u5c06public.account\u8868\u4e2d\u7684\u6570\u636e\u590d\u5236\uff08\u8ffd\u52a0\uff09\u5230public.account_bk\u8868\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">val<\/span> <span class=\"nv\">prop<\/span> <span class=\"k\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nv\">java<\/span><span class=\"o\">.<\/span><span class=\"py\">util<\/span><span class=\"o\">.<\/span><span class=\"py\">Properties<\/span>\r\n<span class=\"nv\">prop<\/span><span class=\"o\">.<\/span><span class=\"py\">setProperty<\/span><span class=\"o\">(<\/span><span class=\"s\">\"driver\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"org.postgresql.Driver\"<\/span><span class=\"o\">)<\/span>\r\n<span class=\"nv\">prop<\/span><span class=\"o\">.<\/span><span class=\"py\">setProperty<\/span><span class=\"o\">(<\/span><span class=\"s\">\"user\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"postgres\"<\/span><span class=\"o\">)<\/span>\r\n<span class=\"nv\">prop<\/span><span class=\"o\">.<\/span><span class=\"py\">setProperty<\/span><span class=\"o\">(<\/span><span class=\"s\">\"password\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"postgres\"<\/span><span class=\"o\">)<\/span> \r\n<span class=\"nv\">jdbcDF<\/span><span class=\"o\">.<\/span><span class=\"py\">write<\/span><span class=\"o\">.<\/span><span class=\"py\">mode<\/span><span class=\"o\">(<\/span><span class=\"s\">\"append\"<\/span><span class=\"o\">).<\/span><span class=\"py\">jdbc<\/span><span class=\"o\">(<\/span><span class=\"s\">\"jdbc:postgresql:\/\/localhost:5432\/mydb\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"public.account_bk\"<\/span><span class=\"o\">,<\/span> <span class=\"n\">prop<\/span><span class=\"o\">)<\/span>\r\n\r\n<span class=\"k\">val<\/span> <span class=\"nv\">jdbcDF1<\/span> <span class=\"k\">=<\/span> <span class=\"nv\">spark<\/span><span class=\"o\">.<\/span><span class=\"py\">read<\/span><span class=\"o\">.<\/span><span class=\"py\">format<\/span><span class=\"o\">(<\/span><span class=\"s\">\"jdbc\"<\/span><span class=\"o\">).<\/span><span class=\"py\">option<\/span><span class=\"o\">(<\/span><span class=\"s\">\"url\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"jdbc:postgresql:\/\/localhost:5432\/mydb\"<\/span><span class=\"o\">).<\/span><span class=\"py\">option<\/span><span class=\"o\">(<\/span><span class=\"s\">\"dbtable\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"public.account_bk\"<\/span><span class=\"o\">).<\/span><span class=\"py\">option<\/span><span class=\"o\">(<\/span><span class=\"s\">\"user\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"postgres\"<\/span><span class=\"o\">).<\/span><span class=\"py\">load<\/span><span class=\"o\">()<\/span>\r\n<span class=\"nv\">jdbcDF1<\/span><span class=\"o\">.<\/span><span class=\"py\">show<\/span><span class=\"o\">()<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d90be913a08637a6dd151\/24-0.jpeg\" alt=\"Scala_2.JPG\" \/><\/div>\n<h1>Spark-shell\u7684\u7ed3\u675f<\/h1>\n<pre class=\"post-pre\"><code>scala&gt;Press (Ctrl+D)\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u6574\u7406\u4e86\u4e00\u4e0b\u4f7f\u7528Spark\u7684\u4ea4\u4e92\u5f0fShell Spark-shell\u8bbf\u95eePostgreSQL\u5e76\u8fdb\u884c\u4e00\u4e9b\u8bd5\u9a8c\u7684\u6b65 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50324","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium 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