无法部署到 Heroku。 at=错误代码=H10 desc=“应用程序崩溃”

Question

I'm trying to deploy my app to Heroku. And my app is crashed. This is errors:

at=error code=H10 desc="App crashed" method=GET path="/" 
host=smartmed2017.herokuapp.com request_id=3e8cc17e-320b-4230-bdbb-
3a751e3477de fwd="195.19.247.73" dyno= connect= service= status=503 
bytes= protocol=https

2017-06-01T11:17:42.380548+00:00 heroku[router]: at=error code=H10 
desc="App crashed" method=GET path="/favicon.ico" 
host=smartmed2017.herokuapp.com request_id=9ab6574e-3fed-4af3-9cae-
0651e13d9112 fwd="195.19.247.73" dyno= connect= service= status=503 
bytes= protocol=https

As usual, but I the reasons of this problem can be different.

This is Main.class

@Controller
@SpringBootApplication
public class Main
{
    public static void main(String[] args) throws Exception {
        SpringApplication.run(Main.class, args);
    }

    @RequestMapping("/")
    String index() {
        return "index";
    }
}

Procfile:

web: java -Dserver.port=$PORT -jar target/untitled-1.0-SNAPSHOT.jar

Screenshot of my classes and pages here

Answer 1

H10 error means : A crashed web dyno or a boot timeout on the web dyno will present this error. According to java-webapp-runner

1. Add webapp runner to the plugins section in your pom.xml

    <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>2.3</version> <executions> <execution> <phase>package</phase> <goals><goal>copy</goal></goals> <configuration> <artifactItems> <artifactItem> <groupId>com.github.jsimone</groupId> <artifactId>webapp-runner</artifactId> <version>8.5.11.3</version> <destFileName>webapp-runner.jar</destFileName> </artifactItem> </artifactItems> </configuration> </execution> </executions> </plugin>

2. Change your Procfile to

web: java $JAVA_OPTS -jar target/dependency/webapp-runner.jar --port $PORT target/*.war

Then try and redeploy.

Check out this project i deployed on github if it can help you more Sample Project on Heroku .

Can you share the project on github?

Answer 2

After creating the " Procfile " inside of the root folder and setting below code on it, the server started working:

web: java -Dserver.port=$PORT $JAVA_OPTS -jar build/libs/my-nice-app-0.0.1-SNAPSHOT.jar

Just make sure that:

1. ./gradlew build works
2. ./gradlew bootRun works

Documentation: https://devcenter.heroku.com/articles/deploying-gradle-apps-on-heroku#prerequisites