{"id":61583,"date":"2024-10-13T12:10:16","date_gmt":"2024-10-13T04:10:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61583\/"},"modified":"2024-10-13T12:10:16","modified_gmt":"2024-10-13T04:10:16","slug":"hive%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e6%95%99%e7%a8%8b%ef%bc%8c%e8%bc%95%e9%ac%86%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e7%ae%a1%e7%90%86%e8%88%87%e5%88%86%e6%9e%90-hive%e9%80%a3%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61583\/","title":{"rendered":"Hive\u6578\u64da\u5eab\u9023\u63a5\u6559\u7a0b\uff0c\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u7ba1\u7406\u8207\u5206\u6790 (hive\u9023\u63a5\u5230\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"hive%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e6%95%99%e7%a8%8b%ef%bc%8c%e8%bc%95%e9%ac%86%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e7%ae%a1%e7%90%86%e8%88%87%e5%88%86%e6%9e%90-rpyHzACtrI\">Hive\u6578\u64da\u5eab\u9023\u63a5\u6559\u7a0b\uff0c\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u7ba1\u7406\u8207\u5206\u6790<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u7ba1\u7406\u8207\u5206\u6790\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002Apache Hive\u4f5c\u70ba\u4e00\u500b\u6578\u64da\u5009\u5eab\u57fa\u65bcHadoop\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u65b9\u4fbf\u7684\u65b9\u5f0f\u4f86\u67e5\u8a62\u548c\u5206\u6790\u5927\u6578\u64da\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u9023\u63a5Hive\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u7ba1\u7406\u8207\u5206\u6790\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afhive%ef%bc%9f-rpyHzACtrI\">\u4ec0\u9ebc\u662fHive\uff1f<\/h2>\n<p>Hive\u662f\u4e00\u500b\u6578\u64da\u5009\u5eab\u57fa\u65bcHadoop\u7684\u5de5\u5177\uff0c\u4e3b\u8981\u7528\u65bc\u6578\u64da\u7684\u67e5\u8a62\u548c\u5206\u6790\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u7a2e\u985e\u4f3cSQL\u7684\u67e5\u8a62\u8a9e\u8a00\uff08HiveQL\uff09\uff0c\u4f7f\u5f97\u7528\u6236\u53ef\u4ee5\u8f15\u9b06\u5730\u9032\u884c\u6578\u64da\u64cd\u4f5c\u3002Hive\u7684\u8a2d\u8a08\u76ee\u7684\u662f\u70ba\u4e86\u8655\u7406\u5927\u898f\u6a21\u7684\u6578\u64da\u96c6\uff0c\u4e26\u4e14\u80fd\u5920\u5728\u5206\u4f48\u5f0f\u74b0\u5883\u4e2d\u904b\u884c\u3002<\/p>\n<h2 id=\"%e9%80%a3%e6%8e%a5hive%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%ba%96%e5%82%99%e5%b7%a5%e4%bd%9c-rpyHzACtrI\">\u9023\u63a5Hive\u6578\u64da\u5eab\u7684\u6e96\u5099\u5de5\u4f5c<\/h2>\n<p>\u5728\u958b\u59cb\u9023\u63a5Hive\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u5df2\u7d93\u5b89\u88dd\u4e86Hadoop\u548cHive\u3002<\/li>\n<li>Hive\u670d\u52d9\u6b63\u5728\u904b\u884c\u3002<\/li>\n<li>\u60a8\u6709\u6b0a\u9650\u8a2a\u554fHive\u6578\u64da\u5eab\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8jdbc%e9%80%a3%e6%8e%a5hive-rpyHzACtrI\">\u4f7f\u7528JDBC\u9023\u63a5Hive<\/h2>\n<p>Java Database Connectivity (JDBC) \u662f\u4e00\u7a2e\u7528\u65bc\u9023\u63a5\u6578\u64da\u5eab\u7684API\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528JDBC\u9023\u63a5Hive\u7684\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e6%b7%bb%e5%8a%a0hive-jdbc%e9%a9%85%e5%8b%95-rpyHzACtrI\">1. \u6dfb\u52a0Hive JDBC\u9a45\u52d5<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u4e0b\u8f09Hive JDBC\u9a45\u52d5\u3002\u53ef\u4ee5\u5f9eApache Hive\u7684\u5b98\u65b9\u7db2\u7ad9\u7372\u53d6\u6700\u65b0\u7248\u672c\u7684\u9a45\u52d5\u3002<\/p>\n<h3 id=\"2-%e7%b7%a8%e5%af%abjava%e4%bb%a3%e7%a2%bc-rpyHzACtrI\">2. \u7de8\u5bebJava\u4ee3\u78bc<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Java\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528JDBC\u9023\u63a5\u5230Hive\uff1a<\/p>\n<pre><code>\nimport java.sql.Connection;\nimport java.sql.DriverManager;\nimport java.sql.ResultSet;\nimport java.sql.Statement;\n\npublic class HiveJdbcExample {\n    public static void main(String[] args) {\n        String driverName = \"org.apache.hive.hcatalog.data.JsonSerDe\";\n        String url = \"jdbc:hive2:\/\/localhost:10000\/default\";\n        String user = \"your_username\";\n        String password = \"your_password\";\n\n        try {\n            Class.forName(driverName);\n            Connection con = DriverManager.getConnection(url, user, password);\n            Statement stmt = con.createStatement();\n            String sql = \"SELECT * FROM your_table\";\n            ResultSet res = stmt.executeQuery(sql);\n\n            while (res.next()) {\n                System.out.println(res.getString(1));\n            }\n            con.close();\n        } catch (Exception e) {\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h3 id=\"3-%e9%85%8d%e7%bd%aehiveserver2-rpyHzACtrI\">3. \u914d\u7f6eHiveServer2<\/h3>\n<p>\u78ba\u4fddHiveServer2\u6b63\u5728\u904b\u884c\uff0c\u4e26\u4e14\u60a8\u53ef\u4ee5\u901a\u904eJDBC\u9023\u63a5\u5230\u5b83\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u555f\u52d5HiveServer2\uff1a<\/p>\n<pre><code>\n$ hive --service hiveserver2\n<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8python%e9%80%a3%e6%8e%a5hive-rpyHzACtrI\">\u4f7f\u7528Python\u9023\u63a5Hive<\/h2>\n<p>\u9664\u4e86Java\uff0c\u60a8\u9084\u53ef\u4ee5\u4f7f\u7528Python\u9023\u63a5Hive\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PyHive\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nfrom pyhive import hive\n\nconn = hive.Connection(host='localhost', port=10000, username='your_username')\ncursor = conn.cursor()\ncursor.execute('SELECT * FROM your_table')\nfor result in cursor.fetchall():\n    print(result)\nconn.close()\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-rpyHzACtrI\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u9023\u63a5\u5230Hive\u6578\u64da\u5eab\uff0c\u4e26\u9032\u884c\u6578\u64da\u7ba1\u7406\u8207\u5206\u6790\u3002\u7121\u8ad6\u662f\u4f7f\u7528Java\u9084\u662fPython\uff0cHive\u90fd\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u63a5\u53e3\u4f86\u8655\u7406\u5927\u6578\u64da\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u74b0\u5883\u4f86\u904b\u884cHive\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u8655\u7406\u9700\u6c42\u5f97\u5230\u6eff\u8db3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1Hive\u6578\u64da\u5eab\u9023\u63a5\u6559\u7a0b\uff0c\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u7ba1\u7406\u8207\u5206\u6790\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u52a9\u529b\u696d\u52d9\u6c7a\u7b56\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-61583","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61583","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=61583"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61583\/revisions"}],"predecessor-version":[{"id":61584,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61583\/revisions\/61584"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}