Create a Spring Boot Java application using SAP BTP

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The Fullstack-type development space comes with several out-of-the-box extensions that are used to develop CAP applications, such as built-in CDS tools.

Open a new terminal window:

Enter the command cd projects/:

Run the following command line:

mvn -B archetype:generate -DarchetypeArtifactId=cds-services-archetype -DarchetypeGroupId=com.sap.cds \

-DarchetypeVersion = 1.17.0
-DgroupId = com.sap.cap -DartifactId = products-service -Dpackage = com.sap.cap.productsservice

Below is an explanation of this parameter.

archetype:generate: The full name is org.apache.maven.plugins:maven-archetype-plugin:3.2.1:generate, where archetype means archetype.

Generate a new project from the prototype, and update the actual project if a partial prototype is used. If the project is fully generated, it is generated in the directory corresponding to its artifactId. If the project is updated with a partial prototype, it is done in the current directory.

Reference link .

After running, use the prototype to generate the project skeleton:

Open workspace：

Among them, db stores database-related resources, and srv folder stores Java-related codes.

CAP applications use Core Data Services (CDS) to describe:

entity definitonsData structures using entity definitions ( )
Use services to define how to use data structures

Create a new file in the srv folder and name it ``:

Define Productsan :

service AdminService {
    entity Products {
        key ID : Integer;
        title  : String(111);
        descr  : String(1111);
    }
}
复制代码

Execute the mvn clean install command:

Make sure to see BUILD SUCCESSFULthe message.

When we used the command line to mvn -B archetype:generatecreate , it was automatically generated Application.java:

The Application.java file can be opened directly with ctrl + p:

mvn clean spring-boot:runStart the template application using the command line :

Prompt that there is an application listening on port 8080. Click Expose and Open.

Port 8080 has been exposed and listening services can be accessed externally. To see the mapped URL, use the "Ports: Preview" command.

Open the command panel:

Execute to ports:previewview url:

I saw the url of the application:

workspaces-ws-pdwk4-app1.us10.trial.applicationstudio.cloud.sap

The naming convention for this url:

The highlighted id is the workspace id:

Create a Spring Boot Java application using SAP BTP

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