The Spring Boot CLI is a command line interface used to quickly build Spring-based applications. It provides a fast way to generate a Spring project, complete with all the necessary dependencies.
The Spring Boot CLI is an important tool for developers who want to get up and running with Spring quickly. In this article, we'll take a look at how to use the Spring Boot CLI to quickly create a Spring project. We'll also discuss some of the features that the Spring Boot CLI provides.
In order to use the Spring Boot CLI, you will need to have the following installed:
You can check if you have these installed by running the following commands:
java -version
mvn -version
If you don't have these installed, you can follow the instructions here.
Once you have these installed, you can download the Spring Boot CLI by visiting this link.
Once you have downloaded the Spring Boot CLI, you will need to unzip it and add the bin
directory to your PATH
. This will allow you to run the spring
command from any directory.
Now that you have the Spring Boot CLI installed, let's use it to create a Spring project. We'll create a project that uses the Web and JPA dependencies.
To do this, we'll use the spring init
command. This command will create a Spring project with the specified dependencies. The -d
flag is used to specify the dependencies that we want to include in our project. In our case, we want to include the Web and JPA dependencies. We'll also specify the -b
flag to indicate that we want to use the bootstrap dependency.
spring init -d=web,data-jpa -b
This will create a directory called my-project
with the following structure:
my-project
├── pom.xml
└── src
├── main
│ ├── java
│ │ └── com
│ │ └── example
│ │ └── myproject
│ │ └── MyprojectApplication.java
│ └── resources
│ └── application.properties
└── test
└── java
└── com
└── example
└── myproject
└── MyprojectApplicationTests.java
The pom.xml
file contains the project's dependencies. The src/main/java
directory contains the project's Java source code. The src/test/java
directory contains the project's tests. The src/main/resources
directory contains project resources such as property files.
Now that we have a Spring project, let's run it to see what it does. To do this, we'll use the spring run
command. This command will compile and run the application.
spring run src/main/java/com/example/myproject/MyprojectApplication.java
This will start the application on port 8080. You can view the application by visiting http://localhost:8080.
While the spring run
command is useful for quickly running an application, the Spring Boot CLI provides many other commands that can be used for different tasks. We'll briefly discuss some of the most useful commands below.
spring boot
The spring boot
command can be used to create a new Spring Boot application. This command will generate a new project with the specified dependencies. This is the same command that we used to create our project in the previous section.
spring clean
The spring clean
command can be used to clean the project's build directory. This is useful if you want to remove any compiled files or other artifacts that are not needed.
spring run
The spring run
command can be used to compile and run the application. This is the same command that we used to run our application in the previous section.
spring test
The spring test
command can be used to run the project's tests. This is useful for verifying that the application is functioning correctly.
spring jar
The spring jar
command can be used to package the application into a JAR file. This is useful for deploying the application to a server.
spring war
The spring war
command can be used to package the application into a WAR file. This is useful for deploying the application to a server.
spring help
The spring help
command can be used to display a list of all of the available commands. This is useful for getting a quick overview of all of the commands that are available.
In this article, we've discussed how to use the Spring Boot CLI to quickly create Spring-based applications. We've also covered some of the most useful commands that the Spring Boot CLI provides.