create project
add web dependency
create controller pkg and class HelloController
HelloController
package com.example.demo.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class HelloController {
@GetMapping("/hello")
public String sayHello() {
return "Hello World";
}
}
run the application check whether working or not
stop application
run application as maven clean
run application as mvn install
refresh project
and inside target you will see the jar file
go to exact location of jar file on file system and open command prompt
and try to run the jar file
stop the application
create Dockerfile
Dockerfile
FROM eclipse-temurin:17-jdk-alpine
VOLUME /tmp
ADD target/SpringBoot3Docker-0.0.1-SNAPSHOT.jar SpringBoot3Docker-0.0.1-SNAPSHOT.jar
ENTRYPOINT ["java","-jar","/SpringBoot3Docker-0.0.1-SNAPSHOT.jar"]
go to exact location of Dockerfile on file system
open command prompt and run below command to create image
>docker build -t springbootdocker:latest .
check whether docker image created or not
>docker images
run the docker image
>docker run -p 3033:8080 springbootdocker
