{"id":28581,"date":"2022-11-16T17:17:37","date_gmt":"2023-05-06T09:57:36","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8kotlin%e8%bf%9e%e6%8e%a5%e5%88%b0mariadb-10-4%e3%80%82\/"},"modified":"2025-08-12T08:58:20","modified_gmt":"2025-08-12T00:58:20","slug":"%e4%bd%bf%e7%94%a8kotlin%e8%bf%9e%e6%8e%a5%e5%88%b0mariadb-10-4%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8kotlin%e8%bf%9e%e6%8e%a5%e5%88%b0mariadb-10-4%e3%80%82\/","title":{"rendered":"\u4f7f\u7528Kotlin\u8fde\u63a5\u5230MariaDB 10.4"},"content":{"rendered":"

\u6700\u8fd1\u6211\u5c1d\u8bd5\u4f7f\u7528\u6700\u53d7\u6b22\u8fce\u7684 Kotlin \u8bed\u8a00\u4e0e MariaDB Connector\/J (JDBC \u9a71\u52a8\u7a0b\u5e8f) \u8fde\u63a5\u5230 MariaDB 10.4 \u6570\u636e\u5e93\u3002<\/p>\n

\u6211\u4f7f\u7528Java\u8f6cKotlin\u7684\u65b9\u6cd5\uff0c\u5c06\u4e4b\u524d\u5199\u7684\u6587\u7ae0\u4e2d\u7684Java\u793a\u4f8b\u4ee3\u7801\u8f6c\u6362\u4e3aKotlin\uff0c\u5e76\u8fdb\u884c\u4e86\u4e00\u4e9b\u624b\u52a8\u4fee\u6b63\u3002<\/p>\n

\u4f7f\u7528MariaDB Connector\/J\u8fde\u63a5\u5230MariaDB 10.4<\/p>\n

\u6837\u672c\u4ee3\u7801<\/p>\n
import<\/span> java.sql.*<\/span>\r\nimport<\/span> org.mariadb.jdbc.internal.util.constant.Version<\/span>\r\n\r\nobject<\/span> jdbc_sample {\r\n    @<\/span>JvmStatic<\/span> fun<\/span> main<\/span>(<\/span>args<\/span>:<\/span>Array<\/span><<\/span>String<\/span>>)<\/span> {<\/span>\r\n        var<\/span> conn<\/span>:<\/span> Connection<\/span>?<\/span> =<\/span> null<\/span>\r\n        var<\/span> stmt<\/span>:<\/span> Statement<\/span>?<\/span> =<\/span> null<\/span>\r\n        var<\/span> resultSet<\/span>:<\/span> ResultSet<\/span>\r\n        try<\/span> {<\/span>\r\n            Class<\/span>.<\/span>forName<\/span>(<\/span>\"org.mariadb.jdbc.Driver\"<\/span>)<\/span>\r\n            println<\/span>(<\/span>\"MariaDB Connector\/J: \"<\/span> +<\/span> Version<\/span>.<\/span>version<\/span> +<\/span> \"\\n\"<\/span>)<\/span>\r\n            print<\/span>(<\/span>\"Connecting to DB...\"<\/span>)<\/span>\r\n            conn<\/span> =<\/span> DriverManager<\/span>.<\/span>getConnection<\/span>(<\/span>\r\n                    \"jdbc:mariadb:\/\/192.168.2.104\/mysql\"<\/span>,<\/span>\r\n                    \"db_user\"<\/span>,<\/span> \"db_passwd\"<\/span>)<\/span>\r\n            println<\/span>(<\/span>\"done.\"<\/span>)<\/span>\r\n            stmt<\/span> =<\/span> conn<\/span>.<\/span>createStatement<\/span>()<\/span>\r\n            resultSet<\/span> =<\/span> stmt<\/span>.<\/span>executeQuery<\/span>(<\/span>\"SELECT user, host FROM mysql.user\"<\/span>)<\/span>\r\n            println<\/span>(<\/span>\"\\nList of MariaDB users:\"<\/span>)<\/span>\r\n            while<\/span> (<\/span>resultSet<\/span>.<\/span>next<\/span>())<\/span> {<\/span>\r\n                var<\/span> user<\/span> =<\/span> resultSet<\/span>.<\/span>getString<\/span>(<\/span>1<\/span>)<\/span>\r\n                var<\/span> host<\/span> =<\/span> resultSet<\/span>.<\/span>getString<\/span>(<\/span>2<\/span>)<\/span>\r\n                println<\/span>(<\/span>user<\/span> +<\/span> \"@'\"<\/span> +<\/span> host<\/span> +<\/span> \"'\"<\/span>)<\/span>\r\n            }<\/span>\r\n        }<\/span>\r\n        catch<\/span> (<\/span>ex<\/span>:<\/span> SQLException<\/span>)<\/span> {<\/span>\r\n            ex<\/span>.<\/span>printStackTrace<\/span>()<\/span>\r\n        }<\/span>\r\n        catch<\/span> (<\/span>ex<\/span>:<\/span> Exception<\/span>)<\/span> {<\/span>\r\n            ex<\/span>.<\/span>printStackTrace<\/span>()<\/span>\r\n        }<\/span>\r\n        finally<\/span> {<\/span>\r\n            try<\/span> {<\/span>\r\n                if<\/span> (<\/span>stmt<\/span> !=<\/span> null<\/span>)<\/span> {<\/span>\r\n                    conn<\/span>?.<\/span>close<\/span>()<\/span>\r\n                }<\/span>\r\n            }<\/span>\r\n            catch<\/span> (<\/span>ex<\/span>:<\/span>SQLException<\/span>)<\/span> {}<\/span>\r\n            try<\/span> {<\/span>\r\n                if<\/span> (<\/span>conn<\/span> !=<\/span> null<\/span>)<\/span> {<\/span>\r\n                    conn<\/span>.<\/span>close<\/span>()<\/span>\r\n                }<\/span>\r\n            }<\/span>\r\n            catch<\/span> (<\/span>ex<\/span>:<\/span> SQLException<\/span>)<\/span> {<\/span>\r\n                ex<\/span>.<\/span>printStackTrace<\/span>()<\/span>\r\n            }<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
build.gradle.kts \u53ef\u4ee5\u7528\u4ee5\u4e0b\u65b9\u5f0f\u7ffb\u8bd1\u6210\u4e2d\u6587\uff1a\u6784\u5efa.gradle.kts
\n\u8fd9\u6b21\u901a\u8fc7\u4f7f\u7528Gradle\u8fdb\u884c\u6784\u5efa\u548c\u6267\u884c\u3002
\n\u9996\u5148\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u3002<\/p>\n
gradle init --type kotlin-application\r\n<\/code><\/pre>\n
\u6211\u5df2\u7ecf\u6839\u636e\u4ee5\u4e0b\u7684 build.gradle.kts \u8fdb\u884c\u4e86\u4ee5\u4e0b\u7684\u4fee\u6b63\u3002<\/p>\n
\r\nplugins<\/span> {<\/span>\r\n    id<\/span>(<\/span>\"org.jetbrains.kotlin.jvm\"<\/span>).<\/span>version<\/span>(<\/span>\"1.3.21\"<\/span>)<\/span>\r\n    application<\/span>\r\n}<\/span>\r\nrepositories<\/span> {<\/span>\r\n    jcenter<\/span>()<\/span>\r\n}<\/span>\r\ndependencies<\/span> {<\/span>\r\n    implementation<\/span>(<\/span>\"org.jetbrains.kotlin:kotlin-stdlib-jdk8\"<\/span>)<\/span>\r\n    implementation<\/span>(<\/span>\"org.mariadb.jdbc:mariadb-java-client:2.4.4\"<\/span>)<\/span>\r\n}<\/span>\r\napplication<\/span> {<\/span>\r\n    mainClassName<\/span> =<\/span> \"jdbc_sample\"<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
MariaDB Connector\/J \u57282019\u5e7410\u670806\u65e5\u65f6\u4f7f\u7528\u7684\u662f\u6700\u65b0\u7248\u672c\u76842.4.4\u3002<\/p>\n
\u5efa\u9020\u9996\u5148\uff0c\u5c1d\u8bd5\u53ea\u8fdb\u884c gradle build \u6784\u5efa\u3002<\/p>\n
C:\\Users\\foo\\kotlin\\jdbc_sample>gradle build\r\n\r\nBUILD SUCCESSFUL in 1s\r\n6 actionable tasks: 5 executed, 1 up-to-date\r\n<\/code><\/pre>\n
\u6267\u884c\u7ed3\u679c\u4f7f\u7528Gradle\u8fd0\u884c\u793a\u4f8b\u7a0b\u5e8f\u3002<\/p>\n
C:\\Users\\foo\\kotlin\\jdbc_sample>gradle run\r\n\r\n> Task :run\r\nMariaDB Connector\/J: 2.4.4\r\n\r\nConnecting to DB... done.\r\n\r\nList of MariaDB users:\r\ndb_user@'%'\r\nmysql@'localhost'\r\nroot@'localhost'\r\n\r\nBUILD SUCCESSFUL in 2s\r\n2 actionable tasks: 1 executed, 1 up-to-date\r\n<\/code><\/pre>\n
\u4f3c\u4e4e\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6700\u8fd1\u6211\u5c1d\u8bd5\u4f7f\u7528\u6700\u53d7\u6b22\u8fce\u7684 Kotlin \u8bed\u8a00\u4e0e MariaDB Connector\/J (JDBC \u9a71\u52a8\u7a0b\u5e8f) […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-28581","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n\u4f7f\u7528Kotlin\u8fde\u63a5\u5230MariaDB 10.4 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u4f7f\u7528Kotlin\u8fde\u63a5\u5230MariaDB 10.4\u7684\u6280\u672f\u6587\u7ae0\" \/>\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\/\u4f7f\u7528kotlin\u8fde\u63a5\u5230mariadb-10-4\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528Kotlin\u8fde\u63a5\u5230MariaDB 10.4\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u4f7f\u7528Kotlin\u8fde\u63a5\u5230MariaDB 10.4\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528kotlin\u8fde\u63a5\u5230mariadb-10-4\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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