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[#]: subject: "Install JDBC on Linux in 3 steps"
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[#]: via: "https://opensource.com/article/22/9/install-jdbc-linux"
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[#]: author: "Seth Kenlon https://opensource.com/users/seth"
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[#]: collector: "lkxed"
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[#]: translator: "geekpi"
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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Install JDBC on Linux in 3 steps
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======
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Install Java, install JDBC with Maven, and install the database. Then you're ready to interact with databases in your Java code.
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![What is your favorite open source Java IDE?][1]
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Image by: Pixabay. CC0.
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When you write an application, it's common to require data storage. Sometimes you're storing assets your application needs to function, and other times you're storing user data, including preferences and save data. One way to store data is in a database, and in order to communicate between your code and a database, you need a database binding or connector for your language. For Java, a common database connector is JDBC (Java database connectivity.)
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### 1. Install Java
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Of course, to develop with Java you must also have Java installed. I recommend [SDKman][2] for Linux, macOS, and WSL or Cygwin. For Windows, you can download OpenJDK from [developers.redhat.com][3].
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### 2. Install JDBC with Maven
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JDBC is an API, imported into your code with the statement `import java.sql.*`, but for it to be useful you must have a database driver and a database installed for it to interact with. The database driver you use and the database you want to communicate with must match: to interact with MySQL, you need a MySQL driver, to interact with SQLite3, you must have the SQLite3 driver, and so on.
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For this article, I use [PostgreSQL][4], but all the major databases, including [MariaDB][5] and [SQLite3][6], have JDBC drivers.
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You can download JDBC for PostgreSQL from [jdbc.postgresql.org][7]. I use [Maven][8] to manage Java dependencies, so I include it in `pom.xml` (adjusting the version number for what's current on [Maven Central][9]):
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```
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<dependency>
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<groupId>org.postgresql</groupId>
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<artifactId>postgresql</artifactId>
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<version>42.5.0</version>
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</dependency>
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```
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### 3. Install the database
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You have to install the database you want to connect to through JDBC. There are several very good open source databases, but I had to choose one for this article, so I chose PostgreSQL.
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To install PostgreSQL on Linux, use your software repository. On Fedora, CentOS, Mageia, and similar:
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```
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$ sudo dnf install postgresql postgresql-server
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```
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On Debian, Linux Mint, Elementary, and similar:
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```
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$ sudo apt install postgresql postgresql-contrib
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```
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### Database connectivity
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If you're not using PostgreSQL, the same general process applies:
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1. Install Java.
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2. Find the JDBC driver for your database of choice and include it in your `pom.xml` file.
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3. Install the database (server and client) on your development OS.
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Three steps and you're ready to start writing code.
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/22/9/install-jdbc-linux
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作者：[Seth Kenlon][a]
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选题：[lkxed][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://opensource.com/users/seth
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[b]: https://github.com/lkxed
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[1]: https://opensource.com/sites/default/files/lead-images/java-coffee-mug.jpg
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[2]: https://opensource.com/article/22/3/manage-java-versions-sdkman
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[3]: https://developers.redhat.com/products/openjdk/download?intcmp=7013a000002qLH8AAM
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[4]: http://LINK-TO-POSTGRESQL-INTRO-ARTICLE
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[5]: https://www.redhat.com/sysadmin/mysql-mariadb-introduction
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[6]: https://opensource.com/article/21/2/sqlite3-cheat-sheet
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[7]: https://jdbc.postgresql.org/download.html
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[8]: https://opensource.com/article/22/3/maven-manage-java-dependencies
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[9]: https://mvnrepository.com/artifact/org.postgresql/postgresql
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88
translated/tech/20220923 Install JDBC on Linux in 3 steps.md
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88
translated/tech/20220923 Install JDBC on Linux in 3 steps.md
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[#]: subject: "Install JDBC on Linux in 3 steps"
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[#]: via: "https://opensource.com/article/22/9/install-jdbc-linux"
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[#]: author: "Seth Kenlon https://opensource.com/users/seth"
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[#]: collector: "lkxed"
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[#]: translator: "geekpi"
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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分 3 步在 Linux 上安装 JDBC
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======
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安装 Java，使用 Maven 安装 JDBC，并安装数据库。然后，你就可以在 Java 代码中与数据库进行交互了。
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![What is your favorite open source Java IDE?][1]
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图片来源：Pixabay. CC0.
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当你编写一个应用时，需要数据存储是很常见的。有时你要存储你的应用需要的资产，其他时候你要存储用户数据，包括偏好和保存数据。存储数据的一种方式是在数据库中，为了在你的代码和数据库之间进行通信，你需要为你的语言提供一个数据库绑定或连接器。对于 Java 来说，一个常见的数据库连接器是 JDBC（Java 数据库连接）。
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### 1. 安装 Java
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当然，要使用 Java 进行开发，你还必须安装 Java。我推荐 [SDKman][2] 用于 Linux、macOS 和 WSL 或 Cygwin。对于 Windows，你可以从 [developers.redhat.com][3] 下载 OpenJDK。
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### 2. 使用 Maven 安装 JDBC
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JDBC 是一种 API，通过语句 `import java.sql.*` 导入到你的代码中，但要使其有用，你必须安装数据库驱动和数据库以与之交互。你使用的数据库驱动和要通信的数据库必须匹配：要与 MySQL 交互，你需要 MySQL 驱动，要与 SQLite3 交互，你必须具有 SQLite3 驱动等等。
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在本文中，我使用 [PostgreSQL][4]，但所有主流数据库，包括 [MariaDB][5] 和 [SQLite3][6]，都有 JDBC 驱动程序。
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You can download JDBC for PostgreSQL from [jdbc.postgresql.org][7]. I use [Maven][8] to manage Java dependencies, so I include it in `pom.xml` (adjusting the version number for what's current on [Maven Central][9]):
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你可以从 [jdbc.postgresql.org][7] 下载 JDBC for PostgreSQL。我使用 [Maven][8] 来管理 Java 依赖项，因此我将它包含在 `pom.xml` 中（调整 [Maven Central][9] 上的当前版本号）：
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```
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<dependency>
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<groupId>org.postgresql</groupId>
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<artifactId>postgresql</artifactId>
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<version>42.5.0</version>
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</dependency>
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```
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### 3. 安装数据库
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你必须安装要通过 JDBC 连接的数据库。有几个非常好的开源数据库，但是我不得不为这篇文章选择一个，所以我选择了 PostgreSQL。
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要在 Linux 上安装 PostgreSQL，请使用你的软件仓库。在 Fedora、CentOS、Mageia 和类似设备上：
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```
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$ sudo dnf install postgresql postgresql-server
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```
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在 Debian、Linux Mint、Elementary 和类似平台上：
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```
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$ sudo apt install postgresql postgresql-contrib
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```
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### 数据库连接
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如果你不使用 PostgreSQL，同样的一般过程也适用：
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1. 安装 Java。
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2. 为你选择的数据库找到 JDBC 驱动，并将其包含在你的 `pom.xml` 文件中。
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3. 在你的开发系统上安装数据库（服务器和客户端）。
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三个步骤，你就可以开始编写代码了。
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--------------------------------------------------------------------------------
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via: https://opensource.com/article/22/9/install-jdbc-linux
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作者：[Seth Kenlon][a]
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选题：[lkxed][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://opensource.com/users/seth
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[b]: https://github.com/lkxed
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[1]: https://opensource.com/sites/default/files/lead-images/java-coffee-mug.jpg
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[2]: https://opensource.com/article/22/3/manage-java-versions-sdkman
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[3]: https://developers.redhat.com/products/openjdk/download?intcmp=7013a000002qLH8AAM
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[4]: http://LINK-TO-POSTGRESQL-INTRO-ARTICLE
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[5]: https://www.redhat.com/sysadmin/mysql-mariadb-introduction
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[6]: https://opensource.com/article/21/2/sqlite3-cheat-sheet
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[7]: https://jdbc.postgresql.org/download.html
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[8]: https://opensource.com/article/22/3/maven-manage-java-dependencies
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[9]: https://mvnrepository.com/artifact/org.postgresql/postgresql
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