当spring-boot应用程序需要来自用户的stdin时，Maven构建暂停

Question

I have a simple springboot project created for standalone application. Main method implements the run method of ApplicationRunner interface

@SpringBootApplication
public class DemoApplication implements ApplicationRunner {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

    @Override
    public void run(ApplicationArguments args) throws Exception {

        final Scanner scanner = new Scanner(System.in);
        final String inputFilePath = scanner.nextLine();

        System.out.println(inputFilePath);
    }
}

The application can be executed without an issue. But when the application is built through maven, the build pauses in the middle and asking for the user input to be entered. It's because I have used the scanner to get the user input for the execution

No changes were done to the pom file (It is the default spring-boot pom)

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

Simple java maven project does not have this issue. It builds successfully. This only comes with this spring-boot project. What am I doing wrong here? Do I need to add some kind of a parameter to the spring-boot-maven-plugin

And I have several unit tests written as well.

@RunWith(SpringRunner.class)
@SpringBootTest
public class ValidationTest {

    @Autowired
    private ValidationService validationService;

    @Test
    public void test_1() {
        final String number = "8801673191614";
        boolean result = validationService.isValidMSISDN(number);

        Assert.assertTrue(result);
    }
}

Answer 1

Build your project with -Dmaven.test.skip=true arguments. The problem is that when you run the tests, all the Spring Context runs.