About vertx, java.net.BindException: Address already in use

Question

Now, I begin to learn vert.x. At first, I tried to define a function that can work. However, 当我第二次运行程序的时候, my current implementation gives me the following error: 三月 22, 2018 3:29:23 下午 io.vertx.core.http.impl.HttpServerImpl 严重: java.net.BindException: Address already in use 我希望第二次运行时，可以首先检测下端口，如果端口被占用，先关闭端口 I could not find an answer from the documentation. Source code package com.project.service; import io.vertx.core.AbstractVerticle; import io.vertx.core.Vertx; import io.vertx.core.VertxOptions; import io.vertx.ext.web.Router; import java.util.function.Consumer; public class VerticleMain extends AbstractVerticle { @Override public void start() throws Exception { Router router = Router.router(vertx); router.route().handler(routingContext -> { routingContext.response() .putHeader("content-type","text/html;charset=UTF-8") .end("我的人设开始"); }); vertx.createHttpServer().requestHandler(router::accept).listen(8181); } public static void deployVertx() { String verticleId = VerticleMain.class.getName(); VertxOptions options = new VertxOptions(); Consumer<Vertx> runner = vertxStart -> { vertxStart.deployVerticle(verticleId); }; Vertx vertx = Vertx.vertx(options); runner.accept(vertx); } public static void main(String[] args) { VerticleMain.deployVertx(); } }

Answer 1

好像关闭端口占用,是要关闭占用端口的系统进程吧
你要先去查是哪个进程占用了该端口,然后在kill进程

其实你第一次运行完了关闭程序就可以了哇,何必搞的这么麻烦