SpringBoot启动后自动打开浏览器访问项目

public static void main(String[] args) {
        //System.out.println("端口启动");
        SpringApplication.run(BackendApp.class, args);
    }

    @Value("${server.port}")
    private String appport;  //站点端口号

    /*当端口启动后，直接跳转界面*/
    @EventListener({ApplicationReadyEvent.class})
    void applicationReadyEvent() {
        System.out.println("应用已经准备就绪 ... 启动浏览器");
        String url = "http://localhost:" + appport;
        Runtime runtime = Runtime.getRuntime();
        try {
            runtime.exec("rundll32 url.dll,FileProtocolHandler " + url);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }