Spring Boot CLI 是一个命令行工具,可用于从start.spring.io引导新项目或对密码进行编码。

1. 安装命令行

Spring Boot CLI(命令行界面)可以使用SDKMAN手动安装!(SDK 管理器)或者使用 Homebrew 或 MacPorts(如果您是 OSX 用户)。有关全面的安装说明,请参阅“入门”部分中的getting-started.html 。

2. 使用命令行界面

安装 CLI 后,您可以通过spring在命令行中键入并按 Enter 来运行它。如果不带任何参数运行spring,将显示帮助屏幕,如下所示:

$ spring
usage: spring [--help] [--version]
       <command> [<args>]

Available commands are:

  init [options] [location]
    Initialize a new project using Spring Initializr (start.spring.io)

  encodepassword [options] <password to encode>
    Encode a password for use with Spring Security

  shell
    Start a nested shell

Common options:

  --debug Verbose mode
    Print additional status information for the command you are running


See 'spring help <command>' for more information on a specific command.

您可以键入spring help以获取有关任何支持的命令的更多详细信息,如以下示例所示:

$ spring help init
spring init - Initialize a new project using Spring Initializr (start.spring.io)

usage: spring init [options] [location]

Option                       Description
------                       -----------
-a, --artifact-id <String>   Project coordinates; infer archive name (for
                               example 'test')
-b, --boot-version <String>  Spring Boot version (for example '1.2.0.RELEASE')
--build <String>             Build system to use (for example 'maven' or
                               'gradle') (default: maven)
-d, --dependencies <String>  Comma-separated list of dependency identifiers to
                               include in the generated project
--description <String>       Project description
-f, --force                  Force overwrite of existing files
--format <String>            Format of the generated content (for example
                               'build' for a build file, 'project' for a
                               project archive) (default: project)
-g, --group-id <String>      Project coordinates (for example 'org.test')
-j, --java-version <String>  Language level (for example '1.8')
-l, --language <String>      Programming language  (for example 'java')
--list                       List the capabilities of the service. Use it to
                               discover the dependencies and the types that are
                               available
-n, --name <String>          Project name; infer application name
-p, --packaging <String>     Project packaging (for example 'jar')
--package-name <String>      Package name
-t, --type <String>          Project type. Not normally needed if you use --
                               build and/or --format. Check the capabilities of
                               the service (--list) for more details
--target <String>            URL of the service to use (default: https://start.
                               spring.io)
-v, --version <String>       Project version (for example '0.0.1-SNAPSHOT')
-x, --extract                Extract the project archive. Inferred if a
                               location is specified without an extension

examples:

    To list all the capabilities of the service:
        $ spring init --list

    To creates a default project:
        $ spring init

    To create a web my-app.zip:
        $ spring init -d=web my-app.zip

    To create a web/data-jpa gradle project unpacked:
        $ spring init -d=web,jpa --build=gradle my-dir

version命令提供了一种快速方法来检查您正在使用哪个版本的 Spring Boot,如下所示:

$ spring version
Spring CLI v3.1.5

2.1. 初始化一个新项目

该命令允许您在不离开 shell 的情况下使用start.spring.ioinit创建新项目,如以下示例所示:

$ spring init --dependencies=web,data-jpa my-project
Using service at https://start.spring.io
Project extracted to '/Users/developer/example/my-project'

前面的示例创建一个目录,其中包含使用和my-project的基于 Maven 的项目。您可以使用该标志列出服务的功能,如以下示例所示:spring-boot-starter-webspring-boot-starter-data-jpa--list

$ spring init --list
=======================================
Capabilities of https://start.spring.io
=======================================

Available dependencies:
-----------------------
actuator - Actuator: Production ready features to help you monitor and manage your application
...
web - Web: Support for full-stack web development, including Tomcat and spring-webmvc
websocket - Websocket: Support for WebSocket development
ws - WS: Support for Spring Web Services

Available project types:
------------------------
gradle-build -  Gradle Config [format:build, build:gradle]
gradle-project -  Gradle Project [format:project, build:gradle]
maven-build -  Maven POM [format:build, build:maven]
maven-project -  Maven Project [format:project, build:maven] (default)

...

init命令支持许多选项。请参阅help输出以获取更多详细信息。例如,以下命令创建一个使用 Java 17 和war打包的 Gradle 项目:

$ spring init --build=gradle --java-version=17 --dependencies=websocket --packaging=war sample-app.zip
Using service at https://start.spring.io
Content saved to 'sample-app.zip'

2.2. 使用嵌入式外壳

Spring Boot 包含 BASH 和 zsh shell 的命令行完成脚本。如果您不使用这些 shell 中的任何一个(也许您是 Windows 用户),则可以使用该shell命令启动集成 shell,如以下示例所示:

$ spring shell
Spring Boot (v3.1.5)
Hit TAB to complete. Type \'help' and hit RETURN for help, and \'exit' to quit.

从嵌入式 shell 内部,您可以直接运行其他命令:

$ version
Spring CLI v3.1.5

嵌入式 shell 支持 ANSI 颜色输出和tab补全。如果需要运行本机命令,可以使用!前缀。要退出嵌入式 shell,请按ctrl-c