How to start Vert.x server from IntelliJ IDEA?

Question

How do I start a simple Vert.x server from inside IntelliJ IDEA?

My build.gradle is as below:

apply plugin: 'java'

version = '3.0.0'

repositories {
    mavenCentral()
}

dependencies {
    compile 'io.vertx:vertx-core:3.0.0'
}

My Vertx-server, MyVertex.java is as below:

package com.example;

import io.vertx.core.AbstractVerticle;
import io.vertx.core.Future;

public class MyVerticle extends AbstractVerticle {

    @Override
    public void start(Future<Void> fut) {
        vertx.createHttpServer()
                .requestHandler(r -> r.response().end("<h1>Hello</h1>"))
                .listen(8081);
    }
}

And my IntelliJ run configuration is as below, with io.vertx.core.Starteras main class:

But when I run it with my run configuration I get this error message:

Error: Could not find or load main class run

Is the VM option (in Run configuration) run something I need to install and add to my path or how do I get started with Vert.x-server development?

@injecteer: then I get this error message: `Error: Could not find or load main class com.example.MyVerticle` — Jonas, Aug 25 '15 at 13:46
On this page it is "run " as VM Option https://github.com/vert-x3/vertx-examples/tree/master/gradle-verticles/gradle-verticle — Jonas, Aug 25 '15 at 13:47

score 52 · Accepted Answer · edited Sep 14 '17 at 02:10

I'm using vertx 3.2.1 and it's complaining about io.vertx.core.Starter. It's deprecated now. So, one should use io.vertx.core.Launcher.

This is an example of launching via intellij with the option of specifying a config JSON file:

Main Class: io.vertx.core.Launcher
VM Options: <up to you, or leave blank>
Program Arguments: run com.app.verticle.MyVerticle -conf /path/to/my_config.json

When using a logging framework it will be added in VM Options as below.

Log4j with either log4j or slf4j delgate:

-Dvertx.logger-delegate-factory-class-name=io.vertx.core.logging.Log4jLogDelegateFactory -Dlog4j.configuration=log4j.xml

-Dvertx.logger-delegate-factory-class-name=io.vertx.core.logging.SLF4JLogDelegateFactory -Dlog4j.configuration=log4j.xml

Logback:

-Dvertx.logger-delegate-factory-class-name=io.vertx.core.logging.SLF4JLogDelegateFactory -Dlogback.configurationFile=logback.xml

I tried -conf /path/my_config.json and -conf \path\my_config.json but didn't work. I'm using windows. What could be the problem? — MA1, Jul 06 '20 at 21:03
@MoA - what happens when you specify the complete path to conf? Example: -conf c:/apps/conf/my_config.json ... — corindiano, Feb 10 '21 at 22:43

score 29 · Answer 2 · answered Jun 23 '17 at 07:56

29

Simply add this to your MyVerticle (or a separate class):

import io.vertx.core.Launcher;
...
public static void main(final String[] args) {
    Launcher.executeCommand("run", MyVerticle.class.getName());
}

Then simply Ctrl+Shift+F10 to run it and IntelliJ will automatically create the Run Configuration.

answered Jun 23 '17 at 07:56

Jared

571
8
8

1

This is more useful because in case you want to pass a promise to your verticle's start method – Chandan Kumar Mar 18 '22 at 10:13

score 8 · Answer 3 · answered Aug 25 '15 at 13:52

8

Ah, my mistake:

run com.example.MyVerticle should be the value of Program arguments: and not as VM options in the IntelliJ IDEA Run configuration.

answered Aug 25 '15 at 13:52

Jonas

121,568
97
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388

score 5 · Answer 4 · answered Feb 27 '18 at 17:15

You can simply add a main and use deployVerticle() and then from there in IntelliJ you can Run or Debug it easily. With deployVerticle, you can pass a new instance of your main/bootstrap verticle or you can pass yourMainVerticle.class

public class VertxVerticleMain {

    public static void main(String[] args) {
        Vertx vertx = Vertx.vertx();

        vertx.deployVerticle(new MyVerticle());
       //vertx.deployVerticle(MyVerticle.class);

    }
}

x80486 · Answer 5 · 2015-08-25T20:26:32.580

2

You have to use this: org.vertx.java.platform.impl.cli.Starter as your Main Class in IntelliJ IDEA; and if you are using arguments and things like that you might want to use something like: runmod <groupId>~<artifactId>~<version> [-conf src/main/resources/your_config.json -cp]

Have a look at this project.

For Vert.x 3.0.0 you have to use this: io.vertx.core.Starter as your Main Class and run com.example.other.AnyVerticle as your Program arguments.

edited Aug 25 '15 at 20:26

answered Aug 25 '15 at 20:06

x80486

6,627
5
52
111

2

`io.vertx.core.Starter` has been deprecated in vert.x 3.2; use `io.vertx.core.Launcher` instead. – jwd630 Feb 03 '16 at 22:38

How to start Vert.x server from IntelliJ IDEA?

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