Microservices are a architectural pattern in software development, where each part of an application is independent and is in a little service. The communication between these services are by an lightweight API.
Agility in software delivery, scalability and resilience in production environment and easy to deploy.
- Java Development Kit JDK 17+
- IDE: IntelliJ, Eclipse, VScode, etc...
- Spring Tools (optional)
- Docker (optional)
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Install JDK and an IDE
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Go to https://start.spring.io/ to config your first WebApp.
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Add a
Spring Webdependency -
Set project's metadata
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Click in generate buttom to download the project
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Unzip the file downloaded
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Open terminal and enter in unzipped folder
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Replace the code in
/demo/src/main/java/com/example/demo/DemoApplication.javaby this code:package com.example.demo; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; @SpringBootApplication @RestController public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); } @GetMapping("/hello") public String hello(@RequestParam(value = "name", defaultValue = "World") String name) { return String.format("Hello %s!", name); } }
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For Linux/MacOS, on terminal enter:
./gradlew bootRun -
For Windows enter:
.\gradlew.bat bootRun -
Go to http://localhost:8080/hello to view the response of the application.